{"id":36227,"date":"2025-08-08T05:46:21","date_gmt":"2025-08-08T05:46:21","guid":{"rendered":"https:\/\/wotaichem.com\/?p=33310"},"modified":"2026-03-02T03:14:47","modified_gmt":"2026-03-02T03:14:47","slug":"comparacao-de-resistencia-do-concreto-com-redutores-de-agua-naftaleno-vs-policarboxilato","status":"publish","type":"post","link":"https:\/\/wotaichem.com\/pt\/comparacao-de-resistencia-do-concreto-com-redutores-de-agua-naftaleno-vs-policarboxilato\/","title":{"rendered":"Redutores de \u00c1gua para Concreto: Compara\u00e7\u00e3o de Resist\u00eancia entre os Tipos Naftaleno e Policarboxilato"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_88 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u00cdndice<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Alternar tabela de conte\u00fado\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/wotaichem.com\/pt\/comparacao-de-resistencia-do-concreto-com-redutores-de-agua-naftaleno-vs-policarboxilato\/#3_tipos_de_aditivos_redutores_de_consumo_de_agua\" >3 tipos de aditivos redutores de consumo de \u00e1gua<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/wotaichem.com\/pt\/comparacao-de-resistencia-do-concreto-com-redutores-de-agua-naftaleno-vs-policarboxilato\/#Superplastificante_de_naftaleno\" >Superplastificante de naftaleno<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/wotaichem.com\/pt\/comparacao-de-resistencia-do-concreto-com-redutores-de-agua-naftaleno-vs-policarboxilato\/#Classificacao\" >Classifica\u00e7\u00e3o<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/wotaichem.com\/pt\/comparacao-de-resistencia-do-concreto-com-redutores-de-agua-naftaleno-vs-policarboxilato\/#Dosagem_critica\" >Dosagem cr\u00edtica<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/wotaichem.com\/pt\/comparacao-de-resistencia-do-concreto-com-redutores-de-agua-naftaleno-vs-policarboxilato\/#Vantagens\" >Vantagens<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/wotaichem.com\/pt\/comparacao-de-resistencia-do-concreto-com-redutores-de-agua-naftaleno-vs-policarboxilato\/#Desvantagens\" >Desvantagens<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/wotaichem.com\/pt\/comparacao-de-resistencia-do-concreto-com-redutores-de-agua-naftaleno-vs-policarboxilato\/#Redutores_de_agua_de_alto_desempenho_a_base_de_policarboxilato_superplastificante_PCE\" >Redutores de \u00e1gua de alto desempenho \u00e0 base de policarboxilato ( superplastificante PCE )<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/wotaichem.com\/pt\/comparacao-de-resistencia-do-concreto-com-redutores-de-agua-naftaleno-vs-policarboxilato\/#Propriedades_Quimicas\" >Propriedades Qu\u00edmicas<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/wotaichem.com\/pt\/comparacao-de-resistencia-do-concreto-com-redutores-de-agua-naftaleno-vs-policarboxilato\/#Reducao_de_grandes_volumes_de_agua_e_retencao_de_deslizamentos\" >Redu\u00e7\u00e3o de grandes volumes de \u00e1gua e reten\u00e7\u00e3o de deslizamentos<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/wotaichem.com\/pt\/comparacao-de-resistencia-do-concreto-com-redutores-de-agua-naftaleno-vs-policarboxilato\/#Problemas_de_sobredosagem\" >Problemas de sobredosagem<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/wotaichem.com\/pt\/comparacao-de-resistencia-do-concreto-com-redutores-de-agua-naftaleno-vs-policarboxilato\/#Aplicacoes_de_redutores_de_agua_a_base_de_naftaleno\" >Aplica\u00e7\u00f5es de redutores de \u00e1gua \u00e0 base de naftaleno<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/wotaichem.com\/pt\/comparacao-de-resistencia-do-concreto-com-redutores-de-agua-naftaleno-vs-policarboxilato\/#Metodos_de_dosagem_recomendados_para_superplastificante_de_naftaleno\" >M\u00e9todos de dosagem recomendados para superplastificante de naftaleno<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/wotaichem.com\/pt\/comparacao-de-resistencia-do-concreto-com-redutores-de-agua-naftaleno-vs-policarboxilato\/#Aplicacoes_dos_redutores_de_agua_de_policarboxilato\" >Aplica\u00e7\u00f5es dos redutores de \u00e1gua de policarboxilato<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/wotaichem.com\/pt\/comparacao-de-resistencia-do-concreto-com-redutores-de-agua-naftaleno-vs-policarboxilato\/#Principais_projetos_de_engenharia\" >Principais projetos de engenharia<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/wotaichem.com\/pt\/comparacao-de-resistencia-do-concreto-com-redutores-de-agua-naftaleno-vs-policarboxilato\/#Testes_comparativos_de_redutores_de_naftaleno_versus_policarboxilato\" >Testes comparativos de redutores de naftaleno versus policarboxilato<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/wotaichem.com\/pt\/comparacao-de-resistencia-do-concreto-com-redutores-de-agua-naftaleno-vs-policarboxilato\/#1_Fluidez\" >1. Fluidez<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/wotaichem.com\/pt\/comparacao-de-resistencia-do-concreto-com-redutores-de-agua-naftaleno-vs-policarboxilato\/#2_Deformacao_e_Resistencia\" >2. Deforma\u00e7\u00e3o e Resist\u00eancia<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/wotaichem.com\/pt\/comparacao-de-resistencia-do-concreto-com-redutores-de-agua-naftaleno-vs-policarboxilato\/#3_Geral\" >3. Geral<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<p><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">O concreto desempenha um papel fundamental em projetos como ferrovias de alta velocidade, pontes, portos, t\u00faneis, metr\u00f4s e usinas hidrel\u00e9tricas. Os redutores de \u00e1gua s\u00e3o <\/span><\/span><a href=\"https:\/\/wotaichem.com\/pt\/aditivos-quimicos-para-concreto\/\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">aditivos essenciais na produ\u00e7\u00e3o de concreto<\/span><\/span><\/a><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"> , melhorando a trabalhabilidade e reduzindo o teor de \u00e1gua. Saiba mais sobre <\/span><\/span><a href=\"https:\/\/wotaichem.com\/pt\/fornecedor-de-redutor-de-agua\/\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">os tipos de redutores de \u00e1gua aqui<\/span><\/span><\/a><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"> .<\/span><\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">A seguir, apresentamos uma introdu\u00e7\u00e3o detalhada e uma compara\u00e7\u00e3o do desempenho de <\/span><\/span><a href=\"https:\/\/wotaichem.com\/pt\/superplastico-de-naftaleno\/\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">superplastificantes \u00e0 base de naftaleno<\/span><\/span><\/a><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"> e <\/span><\/span><a href=\"https:\/\/wotaichem.com\/pt\/superplastificante-policarboxilato\/\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">redutores de \u00e1gua de alta faixa \u00e0 base de policarboxilato<\/span><\/span><\/a><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"> , juntamente com suas aplica\u00e7\u00f5es em engenharia.<\/span><\/span><\/p>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"3_tipos_de_aditivos_redutores_de_consumo_de_agua\"><\/span><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">3 tipos de aditivos redutores de consumo de \u00e1gua<\/span><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">De acordo com a norma para aditivos de concreto, os redutores de \u00e1gua s\u00e3o divididos em tipos comuns, superplastificantes e de alto desempenho.<\/span><\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">\u25aa\ufe0f <\/span><\/span><strong><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">Redutores de \u00e1gua comuns:<\/span><\/span><\/strong><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"> reduzem o consumo de \u00e1gua em 8% a 14%, principalmente \u00e0 base de lignossulfonato, um produto de gera\u00e7\u00e3o anterior.<\/span><\/span><\/p>\n<p><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">\u25aa\ufe0f <\/span><\/span><a href=\"https:\/\/wotaichem.com\/pt\/superplastificante\/\"><strong><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">Superplastificantes<\/span><\/span><\/strong><\/a><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"> : reduzem a quantidade de \u00e1gua em 14% a 25%, incluindo os tipos \u00e0 base de naftaleno, alif\u00e1ticos, <\/span><\/span><a href=\"https:\/\/wotaichem.com\/pt\/superplastificante-de-melamina\/\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">\u00e0 base de melamina<\/span><\/span><\/a><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"> e aminossulfonato. Os redutores de \u00e1gua \u00e0 base de naftaleno det\u00eam cerca de 80% do mercado e s\u00e3o frequentemente usados \u200b\u200bem combina\u00e7\u00e3o com outros aditivos em concreto de ultra-alta resist\u00eancia.<\/span><\/span><\/p>\n<p><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">\u25aa\ufe0f <\/span><\/span><strong><a href=\"https:\/\/wotaichem.com\/pt\/hrwr-redutor-de-agua-de-alta-performance\/\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">Redutores de \u00e1gua de alta capacidade<\/span><\/span><\/a><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"> :<\/span><\/span><\/strong><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"> reduzem o consumo de \u00e1gua em mais de 25%, principalmente \u00e0 base de policarboxilato, representando o n\u00edvel superior dos produtos redutores de \u00e1gua dispon\u00edveis atualmente.<\/span><\/span><\/p>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Superplastificante_de_naftaleno\"><\/span><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">Superplastificante de naftaleno<\/span><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Classificacao\"><\/span><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">Classifica\u00e7\u00e3o<\/span><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">Os condensados \u200b\u200bde formalde\u00eddo de naftaleno (redutores de \u00e1gua \u00e0 base de naftaleno) s\u00e3o classificados de acordo com seu teor de sulfato de s\u00f3dio (Na2SO4):<\/span><\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">\u25aa\ufe0fAlta concentra\u00e7\u00e3o: Na2SO4 &lt; 3% <\/span><\/span><br \/>\n<span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">\u25aa\ufe0fConcentra\u00e7\u00e3o m\u00e9dia: Na2SO4 3%-10% <\/span><\/span><br \/>\n<span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">\u25aa\ufe0fBaixa concentra\u00e7\u00e3o: Na2SO4 &gt; 10%<\/span><\/span><\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/wotaichem.com\/about-wotai\/\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">WOTAIchem\u2122<\/span><\/span><\/a><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"> consegue controlar o teor de Na2SO4 abaixo de 3%. Esses redutores de \u00e1gua apresentam uma taxa de redu\u00e7\u00e3o de 15% a 25%, n\u00e3o afetam significativamente o tempo de pega e possuem baixa incorpora\u00e7\u00e3o de ar (&lt;2%). Pertencem \u00e0 categoria de redutores de ar e melhoram consideravelmente a resist\u00eancia do concreto.<\/span><\/span><\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/wotaichem.com\/pt\/comparacao-de-resistencia-do-concreto-com-redutores-de-agua-naftaleno-vs-policarboxilato\/naixijianshuiji-8-7\/\" rel=\"attachment wp-att-33326\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/wotaichem.com\/pt\/wp-content\/uploads\/2025\/08\/naixijianshuiji-8-7.webp\" class=\"alignnone wp-image-33326 size-full lazyload\" alt=\"superplastificante \u00e0 base de naftaleno\" width=\"650\" height=\"451\"><noscript><img decoding=\"async\" class=\"alignnone wp-image-33326 size-full\" src=\"https:\/\/wotaichem.com\/pt\/wp-content\/uploads\/2025\/08\/naixijianshuiji-8-7.webp\" alt=\"superplastificante \u00e0 base de naftaleno\" width=\"650\" height=\"451\"><\/noscript><\/a><\/p>\n<h3><\/h3>\n<h3><span class=\"ez-toc-section\" id=\"Dosagem_critica\"><\/span><span dir=\"auto\" style=\"vertical-align: inherit;\"><a href=\"https:\/\/wotaichem.com\/pt\/dosagem-de-superplastificante-no-concreto\/\"><span dir=\"auto\" style=\"vertical-align: inherit;\">Dosagem<\/span><\/a><span dir=\"auto\" style=\"vertical-align: inherit;\"> cr\u00edtica<\/span><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">Os redutores de \u00e1gua \u00e0 base de naftaleno possuem uma dosagem cr\u00edtica, denominada ponto de satura\u00e7\u00e3o. Acima desse valor, adi\u00e7\u00f5es adicionais n\u00e3o aumentam a fluidez da pasta nem o abatimento inicial. Aumentar a dosagem at\u00e9 esse ponto mant\u00e9m o abatimento elevado por mais tempo.<\/span><\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Vantagens\"><\/span><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">Vantagens<\/span><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">1. Alta redu\u00e7\u00e3o de \u00e1gua e melhoria da resist\u00eancia<\/span><\/span><\/strong><\/p>\n<p>&nbsp;<\/p>\n<p><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">\u25aa\ufe0f A dosagem t\u00edpica (1% a 3% em rela\u00e7\u00e3o ao peso do cimento) reduz a quantidade de \u00e1gua em 15% a 25%, aumentando consideravelmente a resist\u00eancia \u00e0 compress\u00e3o. A resist\u00eancia inicial (1 a 3 dias) aumenta significativamente; a resist\u00eancia aos 28 dias melhora em 20% a 40%.<\/span><\/span><\/p>\n<p><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">\u25aa\ufe0f Ideal para remo\u00e7\u00e3o r\u00e1pida de f\u00f4rmas e cura mais curta em projetos de pr\u00e9-moldados ou pontes.<\/span><\/span><\/p>\n<p>&nbsp;<\/p>\n<p><strong><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">2. Custo-benef\u00edcio<\/span><\/span><\/strong><\/p>\n<p>&nbsp;<\/p>\n<p><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">\u25aa\ufe0fAs mat\u00e9rias-primas (naftaleno, formalde\u00eddo) est\u00e3o amplamente dispon\u00edveis. A produ\u00e7\u00e3o \u00e9 consolidada e escal\u00e1vel, o que torna os custos mais baixos do que as alternativas de policarboxilato.<\/span><\/span><\/p>\n<p><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">\u25aa\ufe0fIndicado para projetos com restri\u00e7\u00f5es or\u00e7ament\u00e1rias, como edif\u00edcios residenciais e vias p\u00fablicas municipais.<\/span><\/span><\/p>\n<p>&nbsp;<\/p>\n<p><strong><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">3. Boa compatibilidade com cimentos comuns<\/span><\/span><\/strong><\/p>\n<p>&nbsp;<\/p>\n<p><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">\u25aa\ufe0fFunciona bem com cimentos Portland comuns.<\/span><\/span><\/p>\n<p><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">\u25aa\ufe0fBaixo risco de segrega\u00e7\u00e3o ou sangramento, f\u00e1cil de usar sem ajustes frequentes na mistura.<\/span><\/span><\/p>\n<p>&nbsp;<\/p>\n<p><strong><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">4. Melhora a trabalhabilidade<\/span><\/span><\/strong><\/p>\n<p>&nbsp;<\/p>\n<p><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">\u25aa\ufe0fMelhora a dispers\u00e3o das part\u00edculas de cimento, aumentando o abatimento e reduzindo a ader\u00eancia.<\/span><\/span><\/p>\n<p><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">\u25aa\ufe0fFacilita a mistura, o bombeamento e a vibra\u00e7\u00e3o, facilitando o trabalho de constru\u00e7\u00e3o.<\/span><\/span><\/p>\n<p><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">\u25aa\ufe0fAuxilia no transporte ou bombeamento de longa dist\u00e2ncia em concretos de resist\u00eancia moderada.<\/span><\/span><\/p>\n<p>&nbsp;<\/p>\n<p><strong><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">5. Promove hidrata\u00e7\u00e3o e fortalecimento precoces.<\/span><\/span><\/strong><\/p>\n<p>&nbsp;<\/p>\n<p><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">\u25aa\ufe0fAcelera a hidrata\u00e7\u00e3o do C3S, acelerando o endurecimento e o ganho de resist\u00eancia inicial.<\/span><\/span><\/p>\n<p><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">\u25aa\ufe0fAdequado para projetos de carga r\u00e1pida, como reparos ou elementos pr\u00e9-fabricados.<\/span><\/span><\/p>\n<p>&nbsp;<\/p>\n<p><strong><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">6. Estabilidade e longa vida \u00fatil<\/span><\/span><\/strong><\/p>\n<p>&nbsp;<\/p>\n<p><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">\u25aa\ufe0fDispon\u00edvel em p\u00f3 ou l\u00edquido concentrado com composi\u00e7\u00e3o qu\u00edmica est\u00e1vel.<\/span><\/span><\/p>\n<p><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">\u25aa\ufe0fO p\u00f3 tem validade de mais de 6 meses; o l\u00edquido, em embalagem lacrada, de 3 a 6 meses.<\/span><\/span><\/p>\n<p><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">\u25aa\ufe0fResistente \u00e0 degrada\u00e7\u00e3o durante o transporte e armazenamento.<\/span><\/span><\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/wotaichem.com\/pt\/comparacao-de-resistencia-do-concreto-com-redutores-de-agua-naftaleno-vs-policarboxilato\/istockphoto-1131395309-2048x2048\/\" rel=\"attachment wp-att-33340\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/wotaichem.com\/pt\/wp-content\/uploads\/2025\/08\/istockphoto-1131395309-2048x2048-1.webp\" class=\"alignnone wp-image-33340 size-full lazyload\" alt=\"Aditivo de concreto \u00e0 base de naftaleno para estruturas de pontes dur\u00e1veis \u200b\u200be de alta resist\u00eancia.\" width=\"650\" height=\"451\"><noscript><img decoding=\"async\" class=\"alignnone wp-image-33340 size-full\" src=\"https:\/\/wotaichem.com\/pt\/wp-content\/uploads\/2025\/08\/istockphoto-1131395309-2048x2048-1.webp\" alt=\"Aditivo de concreto \u00e0 base de naftaleno para estruturas de pontes dur\u00e1veis \u200b\u200be de alta resist\u00eancia.\" width=\"650\" height=\"451\"><\/noscript><\/a><\/p>\n<h3><\/h3>\n<h3><span class=\"ez-toc-section\" id=\"Desvantagens\"><\/span><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">Desvantagens<\/span><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">\u25aa\ufe0f Sens\u00edvel ao tipo e composi\u00e7\u00e3o do cimento, influenciado pela sulfona\u00e7\u00e3o, grau de polimeriza\u00e7\u00e3o, tipo de \u00edon, teor de Na2SO4 e mineralogia do cimento.<\/span><\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">\u25aa\ufe0f A perda de abatimento pode ser r\u00e1pida, especialmente com alto teor de sulfato. No concreto pr\u00e9-misturado, geralmente \u00e9 combinada com retardadores e agentes incorporadores de ar para formar misturas bombe\u00e1veis. Saiba mais: <\/span><\/span><a href=\"https:\/\/wotaichem.com\/pt\/uso-de-redutores-de-agua-retardadores-e-superplastificantes\/\"><em><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">Como usar redutores de \u00e1gua e retardadores no concreto.<\/span><\/span><\/em><\/a><\/p>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Redutores_de_agua_de_alto_desempenho_a_base_de_policarboxilato_superplastificante_PCE\"><\/span><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">Redutores de \u00e1gua de alto desempenho \u00e0 base de policarboxilato ( <\/span><\/span><a href=\"https:\/\/wotaichem.com\/pt\/pce-para-concreto\/\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">superplastificante PCE<\/span><\/span><\/a><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"> )<\/span><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Propriedades_Quimicas\"><\/span><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">Propriedades Qu\u00edmicas<\/span><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">O desempenho dos superplastificantes de policarboxilato depende dos mon\u00f4meros e das cadeias laterais do pol\u00edmero (por exemplo, HPEG-2400, TPEG-2400). Eles s\u00e3o sintetizados por polimeriza\u00e7\u00e3o radical em solu\u00e7\u00e3o e atuam eficazmente em baixas dosagens (0,1% a 0,2%). As cadeias laterais dos enxertos de \u00f3xido de polietileno (EO) proporcionam forte dispers\u00e3o e retardam a hidrata\u00e7\u00e3o, melhorando significativamente a reten\u00e7\u00e3o do abatimento.<\/span><\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">A estrutura ramificada em forma de pente oferece impedimento est\u00e9rico que dispersa as part\u00edculas de cimento de forma eficiente, mesmo em baixas dosagens. Isso prolonga a a\u00e7\u00e3o do aditivo sobre as part\u00edculas de cimento, proporcionando:<\/span><\/span><\/p>\n<p><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">\u25aa\ufe0f Baixa dosagem e alta economia <\/span><\/span><br \/>\n<span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">\u25aa\ufe0f Excelente reten\u00e7\u00e3o de abatimento e menor perda de fluidez <\/span><\/span><br \/>\n<span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">\u25aa\ufe0f Boa compatibilidade com cimentos e menor sensibilidade<\/span><\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">Por essas raz\u00f5es, os superplastificantes de policarboxilato s\u00e3o a melhor op\u00e7\u00e3o para concretos com baixa rela\u00e7\u00e3o \u00e1gua\/cimento, alta resist\u00eancia e durabilidade.<\/span><\/span><\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/wotaichem.com\/pt\/comparacao-de-resistencia-do-concreto-com-redutores-de-agua-naftaleno-vs-policarboxilato\/pce-8-71\/\" rel=\"attachment wp-att-33329\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/wotaichem.com\/pt\/wp-content\/uploads\/2025\/08\/PCE-8-71.webp\" class=\"alignnone wp-image-33329 size-full lazyload\" alt=\"superplastificante de policarboxilato\" width=\"650\" height=\"451\"><noscript><img decoding=\"async\" class=\"alignnone wp-image-33329 size-full\" src=\"https:\/\/wotaichem.com\/pt\/wp-content\/uploads\/2025\/08\/PCE-8-71.webp\" alt=\"superplastificante de policarboxilato\" width=\"650\" height=\"451\"><\/noscript><\/a><\/p>\n<h3><\/h3>\n<h3><span class=\"ez-toc-section\" id=\"Reducao_de_grandes_volumes_de_agua_e_retencao_de_deslizamentos\"><\/span><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">Redu\u00e7\u00e3o de grandes volumes de \u00e1gua e reten\u00e7\u00e3o de deslizamentos<\/span><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">\u2705Ideal para concretos autoadens\u00e1veis \u200b\u200bde alta resist\u00eancia.<\/span><\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">\u2705Melhor dispers\u00e3o do que os redutores de naftaleno tradicionais na mesma dosagem e rela\u00e7\u00e3o \u00e1gua\/cimento.<\/span><\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">\u2705Mant\u00e9m alta trabalhabilidade com baix\u00edssimas rela\u00e7\u00f5es \u00e1gua\/cimento, oferecendo flexibilidade no desenvolvimento de misturas.<\/span><\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">\u2705Fluxo inicial da pasta &gt;250 mm e perda de abatimento \u226410% ap\u00f3s 1 hora, garantindo excelente plasticidade.<\/span><\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">Isso melhora as propriedades mec\u00e2nicas, a durabilidade e a efici\u00eancia da constru\u00e7\u00e3o, especialmente para concretos fluidos, resistentes e autonivelantes.<\/span><\/span><\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/wotaichem.com\/pt\/comparacao-de-resistencia-do-concreto-com-redutores-de-agua-naftaleno-vs-policarboxilato\/taluo8-7-2\/\" rel=\"attachment wp-att-33335\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/wotaichem.com\/pt\/wp-content\/uploads\/2025\/08\/taluo8-7.2.webp\" class=\"alignnone wp-image-33335 size-full lazyload\" alt=\"Teste de abatimento demonstrando a trabalhabilidade do concreto com superplastificante de policarboxilato.\" width=\"650\" height=\"451\"><noscript><img decoding=\"async\" class=\"alignnone wp-image-33335 size-full\" src=\"https:\/\/wotaichem.com\/pt\/wp-content\/uploads\/2025\/08\/taluo8-7.2.webp\" alt=\"Teste de abatimento demonstrando a trabalhabilidade do concreto com superplastificante de policarboxilato.\" width=\"650\" height=\"451\"><\/noscript><\/a><\/p>\n<h3><\/h3>\n<h3><span class=\"ez-toc-section\" id=\"Problemas_de_sobredosagem\"><\/span><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">Problemas de sobredosagem<\/span><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">O controle rigoroso da dosagem \u00e9 vital. O excesso de redutor de policarboxilato causa segrega\u00e7\u00e3o, sangramento ou excesso de ar. Acima de uma determinada dosagem, a fluidez pode diminuir e a redu\u00e7\u00e3o de \u00e1gua piorar.<\/span><\/span><\/p>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Aplicacoes_de_redutores_de_agua_a_base_de_naftaleno\"><\/span><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">Aplica\u00e7\u00f5es de redutores de \u00e1gua \u00e0 base de naftaleno<\/span><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">Os redutores \u00e0 base de naftaleno s\u00e3o amplamente utilizados devido \u00e0 tecnologia consolidada e ao baixo custo. Muitas usinas de concreto pr\u00e9-misturado adicionam concentrado \u00e0 base de naftaleno diretamente aos agregados. Grandes projetos, como a Usina Hidrel\u00e9trica de Tr\u00eas Gargantas, na China, e outras usinas hidrel\u00e9tricas, utilizam principalmente redutores \u00e0 base de naftaleno.<\/span><\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">Para concreto com abatimento de 30 a 50 cm que n\u00e3o requer bombeamento (placas de estrada, barragens), os redutores de \u00e1gua \u00e0 base de naftaleno geralmente apresentam melhor desempenho do que os tipos \u00e0 base de policarboxilato.<\/span><\/span><\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/wotaichem.com\/pt\/comparacao-de-resistencia-do-concreto-com-redutores-de-agua-naftaleno-vs-policarboxilato\/sanxiadaba\/\" rel=\"attachment wp-att-33331\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/wotaichem.com\/pt\/wp-content\/uploads\/2025\/08\/sanxiadaba.webp\" class=\"alignnone wp-image-33331 size-full lazyload\" alt=\"superplastificante de naftaleno para barragem chinesa\" width=\"650\" height=\"451\"><noscript><img decoding=\"async\" class=\"alignnone wp-image-33331 size-full\" src=\"https:\/\/wotaichem.com\/pt\/wp-content\/uploads\/2025\/08\/sanxiadaba.webp\" alt=\"superplastificante de naftaleno para barragem chinesa\" width=\"650\" height=\"451\"><\/noscript><\/a><\/p>\n<h2><\/h2>\n<h2><span class=\"ez-toc-section\" id=\"Metodos_de_dosagem_recomendados_para_superplastificante_de_naftaleno\"><\/span><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">M\u00e9todos de dosagem recomendados para superplastificante de naftaleno<\/span><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">Existem tr\u00eas m\u00e9todos:<\/span><\/span><\/p>\n<p><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">\ud83d\udd18 <\/span><\/span><strong><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">Pr\u00e9-adi\u00e7\u00e3o<\/span><\/span><\/strong><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"> : antes de misturar com a \u00e1gua <\/span><\/span><br \/>\n<span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">\ud83d\udd18 <\/span><\/span><strong><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">Adi\u00e7\u00e3o simult\u00e2nea<\/span><\/span><\/strong><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"> : durante a mistura com a \u00e1gua <\/span><\/span><br \/>\n<span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">\ud83d\udd18 <\/span><\/span><strong><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">Adi\u00e7\u00e3o tardia<\/span><\/span><\/strong><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"> : ap\u00f3s mistura parcial, adicionado uma ou mais vezes, seguido de nova mistura<\/span><\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">A adi\u00e7\u00e3o retardada \u00e9 prefer\u00edvel para redutores de naftaleno para evitar a adsor\u00e7\u00e3o seletiva por minerais do cimento e melhorar a dispers\u00e3o.<\/span><\/span><\/p>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Aplicacoes_dos_redutores_de_agua_de_policarboxilato\"><\/span><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">Aplica\u00e7\u00f5es dos redutores de \u00e1gua de policarboxilato<\/span><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Principais_projetos_de_engenharia\"><\/span><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">Principais projetos de engenharia<\/span><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">\ud83c\udfc5 <\/span><\/span><strong><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">Trem de alta velocidade<\/span><\/span><\/strong><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"> : Utilizado em todas as principais linhas de passageiros da China, garantindo qualidade e velocidade para projetos com vida \u00fatil de 100 anos.<\/span><\/span><\/p>\n<p><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">\ud83c\udfc5 <\/span><\/span><strong><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">Pontes mar\u00edtimas<\/span><\/span><\/strong><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"> : Por exemplo, a Ponte do Mar da China Oriental e a Ponte da Ba\u00eda de Hangzhou utilizam redutores de policarboxilato para garantir durabilidade centen\u00e1ria em ambientes marinhos severos.<\/span><\/span><\/p>\n<p><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">\ud83c\udfc5 <\/span><\/span><strong><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">Conserva\u00e7\u00e3o de \u00e1gua<\/span><\/span><\/strong><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"> : O Projeto de Desvio de \u00c1gua Sul-Norte utiliza redutores de policarboxilato para produzir concreto com permeabilidade \u2265 P12, resist\u00eancia ao gelo \u2265 F300 e vida \u00fatil de projeto de 100 anos.<\/span><\/span><\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/wotaichem.com\/pt\/comparacao-de-resistencia-do-concreto-com-redutores-de-agua-naftaleno-vs-policarboxilato\/gaotie8-7-2\/\" rel=\"attachment wp-att-33336\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/wotaichem.com\/pt\/wp-content\/uploads\/2025\/08\/gaotie8-7.2.webp\" class=\"alignnone wp-image-33336 size-full lazyload\" alt=\"Redutores de \u00e1gua de policarboxilato para trens de alta velocidade\" width=\"650\" height=\"451\"><noscript><img decoding=\"async\" class=\"alignnone wp-image-33336 size-full\" src=\"https:\/\/wotaichem.com\/pt\/wp-content\/uploads\/2025\/08\/gaotie8-7.2.webp\" alt=\"Redutores de \u00e1gua de policarboxilato para trens de alta velocidade\" width=\"650\" height=\"451\"><\/noscript><\/a><\/p>\n<h2><\/h2>\n<h2><span class=\"ez-toc-section\" id=\"Testes_comparativos_de_redutores_de_naftaleno_versus_policarboxilato\"><\/span><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">Testes comparativos de redutores de naftaleno versus policarboxilato<\/span><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">Os testes compararam a fluidez, o abatimento, a resist\u00eancia \u00e0 desmoldagem e a resist\u00eancia \u00e0 compress\u00e3o aos 28 dias em condi\u00e7\u00f5es padr\u00e3o.<\/span><\/span><\/p>\n<p><a href=\"https:\/\/wotaichem.com\/pt\/comparacao-de-resistencia-do-concreto-com-redutores-de-agua-naftaleno-vs-policarboxilato\/water-reducers-for-concrete3\/\" rel=\"attachment wp-att-33337\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/wotaichem.com\/pt\/wp-content\/uploads\/2025\/08\/Water-Reducers-for-Concrete3.webp\" class=\"alignnone wp-image-33337 size-full lazyload\" alt=\"Redutores de \u00e1gua para concreto\" width=\"650\" height=\"451\"><noscript><img decoding=\"async\" class=\"alignnone wp-image-33337 size-full\" src=\"https:\/\/wotaichem.com\/pt\/wp-content\/uploads\/2025\/08\/Water-Reducers-for-Concrete3.webp\" alt=\"Redutores de \u00e1gua para concreto\" width=\"650\" height=\"451\"><\/noscript><\/a><\/p>\n<h3><span class=\"ez-toc-section\" id=\"1_Fluidez\"><\/span><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">1. Fluidez<\/span><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">\u25aa\ufe0fAmbos os tipos melhoram o fluxo com o aumento da dosagem. <\/span><\/span><br \/>\n<span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">\u25aa\ufe0fO policarboxilato apresenta forte efeito em baixa dosagem (0,7% a 0,9%). <\/span><\/span><br \/>\n<span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">\u25aa\ufe0fO naftaleno necessita de uma dosagem maior (aproximadamente 2,2%) para atingir um fluxo semelhante (aproximadamente 190 mm).<\/span><\/span><\/p>\n<p>&nbsp;<\/p>\n<p><em><span style=\"font-size: 10pt;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">Tabela 1 Resultados do Teste de Fluidez da Pasta de Cimento<\/span><\/span><\/span><\/em><\/p>\n<table style=\"border-collapse: collapse; width: 100%; height: 589px;\">\n<tbody>\n<tr style=\"height: 59px;\">\n<td style=\"width: 25%; height: 112px;\" rowspan=\"2\"><strong><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">Dosagem da mistura (%)<\/span><\/span><\/strong><\/td>\n<td style=\"width: 25%; height: 59px;\" colspan=\"3\"><strong><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">Fluidez (mm)<\/span><\/span><\/strong><\/td>\n<\/tr>\n<tr style=\"height: 53px;\">\n<td style=\"width: 25%; height: 53px;\"><strong><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">Superplastificante de naftaleno<\/span><\/span><\/strong><\/td>\n<td style=\"width: 25%; height: 53px;\"><strong><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">Policarboxilato<\/span><\/span><\/strong><\/p>\n<p><strong><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">Amostra 1 de superplastificante<\/span><\/span><\/strong><\/td>\n<td style=\"width: 25%; height: 53px;\"><strong><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">Policarboxilato<\/span><\/span><\/strong><\/p>\n<p><strong><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">Superplastificante<\/span><\/span><\/strong><\/p>\n<p><strong><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">Exemplo 2<\/span><\/span><\/strong><\/td>\n<\/tr>\n<tr style=\"height: 53px;\">\n<td style=\"width: 25%; height: 53px;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">0,50%<\/span><\/span><\/td>\n<td style=\"width: 25%; height: 53px;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 25%; height: 53px;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 25%; height: 53px;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">195<\/span><\/span><\/td>\n<\/tr>\n<tr style=\"height: 53px;\">\n<td style=\"width: 25%; height: 53px;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">0,60%<\/span><\/span><\/td>\n<td style=\"width: 25%; height: 53px;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 25%; height: 53px;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 25%; height: 53px;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">215<\/span><\/span><\/td>\n<\/tr>\n<tr style=\"height: 53px;\">\n<td style=\"width: 25%; height: 53px;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">0,70%<\/span><\/span><\/td>\n<td style=\"width: 25%; height: 53px;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 25%; height: 53px;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 25%; height: 53px;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">230<\/span><\/span><\/td>\n<\/tr>\n<tr style=\"height: 53px;\">\n<td style=\"width: 25%; height: 53px;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">0,80%<\/span><\/span><\/td>\n<td style=\"width: 25%; height: 53px;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 25%; height: 53px;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">185<\/span><\/span><\/td>\n<td style=\"width: 25%; height: 53px;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<\/tr>\n<tr style=\"height: 53px;\">\n<td style=\"width: 25%; height: 53px;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">0,90%<\/span><\/span><\/td>\n<td style=\"width: 25%; height: 53px;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 25%; height: 53px;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">210<\/span><\/span><\/td>\n<td style=\"width: 25%; height: 53px;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<\/tr>\n<tr style=\"height: 53px;\">\n<td style=\"width: 25%; height: 53px;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">1,00%<\/span><\/span><\/td>\n<td style=\"width: 25%; height: 53px;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 25%; height: 53px;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">235<\/span><\/span><\/td>\n<td style=\"width: 25%; height: 53px;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<\/tr>\n<tr style=\"height: 53px;\">\n<td style=\"width: 25%; height: 53px;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">1,80%<\/span><\/span><\/td>\n<td style=\"width: 25%; height: 53px;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">120<\/span><\/span><\/td>\n<td style=\"width: 25%; height: 53px;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 25%; height: 53px;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<\/tr>\n<tr style=\"height: 53px;\">\n<td style=\"width: 25%; height: 53px;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">2,00%<\/span><\/span><\/td>\n<td style=\"width: 25%; height: 53px;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">160<\/span><\/span><\/td>\n<td style=\"width: 25%; height: 53px;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 25%; height: 53px;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<\/tr>\n<tr style=\"height: 53px;\">\n<td style=\"width: 25%; height: 53px;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">2,20%<\/span><\/span><\/td>\n<td style=\"width: 25%; height: 53px;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">190<\/span><\/span><\/td>\n<td style=\"width: 25%; height: 53px;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 25%; height: 53px;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><span class=\"ez-toc-section\" id=\"2_Deformacao_e_Resistencia\"><\/span><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">2. Deforma\u00e7\u00e3o e Resist\u00eancia<\/span><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">\u25aa\ufe0fO policarboxilato melhora significativamente a deforma\u00e7\u00e3o e atinge resist\u00eancias superiores a 60 MPa ap\u00f3s 28 dias com uma dosagem de 0,9%.<\/span><\/span><\/p>\n<p><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">\u25aa\ufe0fO naftaleno atinge 65 MPa a 2,2%, com um ganho de resist\u00eancia mais lento.<\/span><\/span><\/p>\n<p><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">\u25aa\ufe0fO policarboxilato apresenta benef\u00edcios de resist\u00eancia inicial (1 dia), auxiliando na velocidade de constru\u00e7\u00e3o e na rotatividade das f\u00f4rmas.<\/span><\/span><\/p>\n<p>&nbsp;<\/p>\n<p><em><span style=\"font-size: 10pt;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">Tabela 2 Resultados dos testes de concreto com diferentes superplastificantes<\/span><\/span><\/span><\/em><\/p>\n<table style=\"border-collapse: collapse; width: 100%;\">\n<tbody>\n<tr>\n<td style=\"width: 10%;\" rowspan=\"2\"><strong><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">Dosagem da mistura (%)<\/span><\/span><\/strong><\/td>\n<td style=\"width: 30%;\" colspan=\"3\"><strong><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">Naftaleno<\/span><\/span><\/strong><\/td>\n<td style=\"width: 30%;\" colspan=\"3\"><strong><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">Amostra de policarboxilato 1<\/span><\/span><\/strong><\/td>\n<td style=\"width: 30%;\" colspan=\"3\"><strong><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">Amostra de policarboxilato 2<\/span><\/span><\/strong><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 10%;\"><strong><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">Queda<\/span><\/span><\/strong><\/td>\n<td style=\"width: 10%;\"><strong><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">28d<\/span><\/span><\/strong><\/td>\n<td style=\"width: 10%;\"><strong><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">For\u00e7a de desmoldagem<\/span><\/span><\/strong><\/td>\n<td style=\"width: 10%;\"><strong><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">Queda<\/span><\/span><\/strong><\/td>\n<td style=\"width: 10%;\"><strong><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">28d<\/span><\/span><\/strong><\/td>\n<td style=\"width: 10%;\"><strong><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">For\u00e7a de desmoldagem<\/span><\/span><\/strong><\/td>\n<td style=\"width: 10%;\"><strong><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">Queda<\/span><\/span><\/strong><\/td>\n<td style=\"width: 10%;\"><strong><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">28d<\/span><\/span><\/strong><\/td>\n<td style=\"width: 10%;\"><strong><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">For\u00e7a de desmoldagem<\/span><\/span><\/strong><\/td>\n<\/tr>\n<tr style=\"height: 53px;\">\n<td style=\"width: 10%; height: 53px;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">0,50%<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">15<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">65<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">22.0<\/span><\/span><\/td>\n<\/tr>\n<tr style=\"height: 53px;\">\n<td style=\"width: 10%; height: 53px;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">0,60%<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">30<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">69,2<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">25,6<\/span><\/span><\/td>\n<\/tr>\n<tr style=\"height: 53px;\">\n<td style=\"width: 10%; height: 53px;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">0,70%<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">50<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">71,2<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">28.3<\/span><\/span><\/td>\n<\/tr>\n<tr style=\"height: 53px;\">\n<td style=\"width: 10%; height: 53px;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">0,80%<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">10<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">60,3<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">21.0<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<\/tr>\n<tr style=\"height: 53px;\">\n<td style=\"width: 10%; height: 53px;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">0,90%<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">25<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">65,7<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">24,5<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<\/tr>\n<tr style=\"height: 53px;\">\n<td style=\"width: 10%; height: 53px;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">1,00%<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">45<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">67,2<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">26,4<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<\/tr>\n<tr style=\"height: 53px;\">\n<td style=\"width: 10%; height: 53px;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">1,80%<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">0<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">59,0<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">21.0<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<\/tr>\n<tr style=\"height: 53px;\">\n<td style=\"width: 10%; height: 53px;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">2,00%<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">20<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">63,2<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">23,4<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<\/tr>\n<tr style=\"height: 53px;\">\n<td style=\"width: 10%; height: 53px;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">2,20%<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">45<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">65,4<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">25,6<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<td style=\"width: 10%;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">&#8212;<\/span><\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"3_Geral\"><\/span><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">3. Geral<\/span><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">\ud83d\udd18 Os redutores de policarboxilato se destacam em efici\u00eancia, reten\u00e7\u00e3o de abatimento e ganho de resist\u00eancia, sendo adequados para concretos exigentes, como misturas autoadens\u00e1veis \u200b\u200be de alta resist\u00eancia.<\/span><\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">\ud83d\udd18 Os redutores de naftalina continuam sendo uma op\u00e7\u00e3o economicamente vi\u00e1vel para concreto padr\u00e3o e projetos com restri\u00e7\u00f5es or\u00e7ament\u00e1rias, especialmente onde a manuten\u00e7\u00e3o do abatimento \u00e9 menos cr\u00edtica.<\/span><\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">Os aditivos \u00e0 base de naftaleno e os \u00e0 base de policarboxilato pertencem \u00e0 categoria mais ampla de redutores de \u00e1gua. Cada um \u00e9 adequado para diferentes requisitos do concreto. Voc\u00ea pode selecion\u00e1-los com base nas necessidades espec\u00edficas do seu projeto em termos de resist\u00eancia, trabalhabilidade e custo-benef\u00edcio.<\/span><\/span><\/p>\n<blockquote><p><strong><span style=\"font-size: 14pt;\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">Para obter aconselhamento espec\u00edfico para o seu projeto, por favor, forne\u00e7a os seus par\u00e2metros. Contacte os engenheiros da WOTAIchem atrav\u00e9s do WhatsApp: +86 185 5317 0666<\/span><\/span><\/span><\/strong><\/p><\/blockquote>\n<p>&nbsp;<\/p>\n<p><em><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">Saiba mais: <\/span><\/span><a href=\"https:\/\/wotaichem.com\/pt\/fornecedor-de-redutor-de-agua\/\"><span dir=\"auto\" style=\"vertical-align: inherit;\"><span dir=\"auto\" style=\"vertical-align: inherit;\">Redutores de \u00e1gua: Tipos, graus e aplica\u00e7\u00f5es<\/span><\/span><\/a><\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>O concreto desempenha um papel fundamental em projetos como ferrovias de alta velocidade, pontes, portos, t\u00faneis, metr\u00f4s e usinas hidrel\u00e9tricas. Os redutores de \u00e1gua s\u00e3o aditivos essenciais na produ\u00e7\u00e3o de concreto , melhorando a trabalhabilidade e reduzindo o teor de \u00e1gua. Saiba mais sobre os tipos de redutores de \u00e1gua aqui . &nbsp; A seguir, apresentamos uma introdu\u00e7\u00e3o detalhada e uma compara\u00e7\u00e3o do desempenho de superplastificantes \u00e0 base de naftaleno e redutores de \u00e1gua de alta faixa \u00e0 base de policarboxilato , juntamente com suas aplica\u00e7\u00f5es em engenharia. &nbsp; 3 tipos de aditivos redutores de consumo de \u00e1gua De acordo com a norma para aditivos de concreto, os redutores de \u00e1gua s\u00e3o divididos em tipos comuns, superplastificantes e de alto desempenho. &nbsp; \u25aa\ufe0f Redutores de \u00e1gua comuns: reduzem o consumo de \u00e1gua em 8% a 14%, principalmente \u00e0 base de lignossulfonato, um produto de gera\u00e7\u00e3o anterior. \u25aa\ufe0f Superplastificantes : reduzem [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":36388,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-36227","post","type-post","status-publish","format-standard","has-post-thumbnail","category-blog"],"acf":[],"_links":{"self":[{"href":"https:\/\/wotaichem.com\/pt\/wp-json\/wp\/v2\/posts\/36227","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wotaichem.com\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wotaichem.com\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wotaichem.com\/pt\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wotaichem.com\/pt\/wp-json\/wp\/v2\/comments?post=36227"}],"version-history":[{"count":0,"href":"https:\/\/wotaichem.com\/pt\/wp-json\/wp\/v2\/posts\/36227\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/wotaichem.com\/pt\/wp-json\/wp\/v2\/media\/36388"}],"wp:attachment":[{"href":"https:\/\/wotaichem.com\/pt\/wp-json\/wp\/v2\/media?parent=36227"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wotaichem.com\/pt\/wp-json\/wp\/v2\/categories?post=36227"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wotaichem.com\/pt\/wp-json\/wp\/v2\/tags?post=36227"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}