{"id":14157,"date":"2026-04-01T05:33:45","date_gmt":"2026-04-01T05:33:45","guid":{"rendered":"https:\/\/tenessy.com\/?p=14157"},"modified":"2026-04-01T07:17:50","modified_gmt":"2026-04-01T07:17:50","slug":"application-advantages-of-polycarboxylate-superplasticizer-in-hydropower-station-dam-concrete","status":"publish","type":"post","link":"https:\/\/tenessy.com\/pt\/vantagens-da-aplicacao-do-superplastificante-de-policarboxilato-no-concreto-de-barragens-de-usinas-hidreletricas\/","title":{"rendered":"Vantagens da aplica\u00e7\u00e3o do superplastificante de policarboxilato em concreto de barragem de usina hidrel\u00e9trica"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"14157\" class=\"elementor elementor-14157\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-fdbc6e4 e-flex e-con-boxed e-con e-parent\" data-id=\"fdbc6e4\" data-element_type=\"container\" data-settings=\"{&quot;ekit_has_onepagescroll_dot&quot;:&quot;yes&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-20af60d elementor-widget elementor-widget-image\" data-id=\"20af60d\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"534\" src=\"https:\/\/tenessy.com\/wp-content\/uploads\/2026\/04\/Hydropower-Station-1024x683.jpg\" class=\"attachment-large size-large wp-image-14162\" alt=\"Esta\u00e7\u00e3o hidrel\u00e9trica\" srcset=\"https:\/\/tenessy.com\/wp-content\/uploads\/2026\/04\/Hydropower-Station-1024x683.jpg 1024w, https:\/\/tenessy.com\/wp-content\/uploads\/2026\/04\/Hydropower-Station-300x200.jpg 300w, https:\/\/tenessy.com\/wp-content\/uploads\/2026\/04\/Hydropower-Station-768x512.jpg 768w, https:\/\/tenessy.com\/wp-content\/uploads\/2026\/04\/Hydropower-Station-1536x1025.jpg 1536w, https:\/\/tenessy.com\/wp-content\/uploads\/2026\/04\/Hydropower-Station-18x12.jpg 18w, https:\/\/tenessy.com\/wp-content\/uploads\/2026\/04\/Hydropower-Station.jpg 1853w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b06d651 elementor-widget elementor-widget-heading\" data-id=\"b06d651\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">I. Introdu\u00e7\u00e3o<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5ae54ec elementor-widget elementor-widget-text-editor\" data-id=\"5ae54ec\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\">Como infraestrutura nacional essencial, a qualidade da constru\u00e7\u00e3o das usinas hidrel\u00e9tricas afeta diretamente a seguran\u00e7a do projeto, a vida \u00fatil operacional e o retorno do investimento. Em estruturas centrais, como barragens, casas de for\u00e7a e vertedouros, o concreto \u00e9 o material de constru\u00e7\u00e3o mais amplamente utilizado e de maior volume. Em uma usina hidrel\u00e9trica de grande porte, o volume de coloca\u00e7\u00e3o de concreto geralmente chega a milh\u00f5es ou at\u00e9 dezenas de milh\u00f5es de metros c\u00fabicos. Esses projetos maci\u00e7os de concreto imp\u00f5em requisitos extremamente altos de trabalhabilidade, propriedades mec\u00e2nicas, durabilidade e efici\u00eancia de constru\u00e7\u00e3o.<\/p><p class=\"ds-markdown-paragraph\">Os superplastificantes tradicionais (como o lignossulfonato e os superplastificantes \u00e0 base de naftaleno) t\u00eam certas limita\u00e7\u00f5es em termos de taxa de redu\u00e7\u00e3o de \u00e1gua, reten\u00e7\u00e3o de abatimento e respeito ao meio ambiente, o que dificulta o atendimento total \u00e0s demandas dos projetos hidrel\u00e9tricos modernos por concreto de alto desempenho.\u00a0<a href=\"https:\/\/tenessy.com\/products\/polycarboxylate-superplasticizer\/\"><strong>Superplastificante de policarboxilato<\/strong><\/a>O superplastificante de policarboxilato, como aditivo de concreto de alto desempenho de terceira gera\u00e7\u00e3o, tornou-se gradualmente o aditivo preferido para o concreto de barragens de usinas hidrel\u00e9tricas devido \u00e0s suas vantagens t\u00e9cnicas exclusivas. Este artigo analisa sistematicamente as vantagens da aplica\u00e7\u00e3o do superplastificante de policarboxilato no concreto de barragens de usinas hidrel\u00e9tricas a partir de v\u00e1rias dimens\u00f5es, incluindo princ\u00edpios t\u00e9cnicos, vantagens essenciais e pr\u00e1ticas de engenharia.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bbece77 elementor-widget elementor-widget-heading\" data-id=\"bbece77\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">I. Mecanismo e caracter\u00edsticas t\u00e9cnicas do superplastificante de policarboxilato<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8fabc90 elementor-widget elementor-widget-heading\" data-id=\"8fabc90\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">1.1 Desempenho exclusivo possibilitado pelo design da estrutura molecular<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c7729ed elementor-widget elementor-widget-text-editor\" data-id=\"c7729ed\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\">O superplastificante de policarboxilato pertence \u00e0 categoria de surfactantes de pol\u00edmero, com uma estrutura molecular em forma de pente - a cadeia principal cont\u00e9m grupos funcionais polares, como grupos de \u00e1cido carbox\u00edlico e grupos de \u00e1cido sulf\u00f4nico, enquanto as cadeias laterais s\u00e3o longas cadeias de polioxietileno. Essa estrutura exclusiva faz com que seu comportamento de adsor\u00e7\u00e3o nas superf\u00edcies das part\u00edculas de cimento seja nitidamente diferente do comportamento dos superplastificantes tradicionais:<\/p><ul><li><p class=\"ds-markdown-paragraph\"><strong>Efeito de impedimento est\u00e9rico:<\/strong>\u00a0As mol\u00e9culas de cadeia lateral longa formam uma barreira tridimensional nas superf\u00edcies das part\u00edculas de cimento, impedindo efetivamente a agrega\u00e7\u00e3o de part\u00edculas e proporcionando uma dispers\u00e3o mais persistente<\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>Repuls\u00e3o eletrost\u00e1tica sin\u00e9rgica:<\/strong>\u00a0Os grupos ani\u00f4nicos na cadeia principal proporcionam repuls\u00e3o eletrost\u00e1tica, trabalhando em conjunto com o impedimento est\u00e9rico para criar um mecanismo de estabiliza\u00e7\u00e3o duplo<\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>Alta efici\u00eancia com baixa dosagem:<\/strong>\u00a0Em compara\u00e7\u00e3o com a dosagem de 0,5%-1,0% dos superplastificantes tradicionais, o superplastificante de policarboxilato atinge uma taxa de redu\u00e7\u00e3o de \u00e1gua de 25%-35% em uma dosagem de apenas 0,15%-0,3%, com uma taxa m\u00e1xima de redu\u00e7\u00e3o de \u00e1gua superior a 50%<\/p><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8c61fe5 elementor-widget elementor-widget-heading\" data-id=\"8c61fe5\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">1.2 Caracter\u00edsticas ambientais e de seguran\u00e7a<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-54b6540 elementor-widget elementor-widget-text-editor\" data-id=\"54b6540\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\">Superplastificante de policarboxilato\u00a0<strong>n\u00e3o envolve subst\u00e2ncias nocivas, como formalde\u00eddo ou naftalina<\/strong>\u00a0durante a produ\u00e7\u00e3o e o uso, n\u00e3o tem odor irritante e \u00e9 amig\u00e1vel para a equipe de constru\u00e7\u00e3o e o ambiente ao redor. Essa caracter\u00edstica est\u00e1 alinhada com a atual dire\u00e7\u00e3o do setor de constru\u00e7\u00e3o verde e desenvolvimento sustent\u00e1vel, o que a torna particularmente adequada para projetos hidrel\u00e9tricos de grande escala com requisitos ambientais rigorosos.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-9b2cd0b e-flex e-con-boxed e-con e-parent\" data-id=\"9b2cd0b\" data-element_type=\"container\" data-settings=\"{&quot;ekit_has_onepagescroll_dot&quot;:&quot;yes&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-47b4288 elementor-widget elementor-widget-heading\" data-id=\"47b4288\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">II. Desafios t\u00e9cnicos do concreto de barragens de usinas hidrel\u00e9tricas<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1b10f69 elementor-widget elementor-widget-text-editor\" data-id=\"1b10f69\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Antes de analisar profundamente as vantagens da aplica\u00e7\u00e3o do superplastificante de policarboxilato, \u00e9 necess\u00e1rio entender os desafios t\u00e9cnicos especiais enfrentados pelo concreto da barragem da usina hidrel\u00e9trica:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7420998 elementor-widget elementor-widget-heading\" data-id=\"7420998\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">2.1 Controle de temperatura e preven\u00e7\u00e3o de fissuras em concreto maci\u00e7o<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c553277 elementor-widget elementor-widget-text-editor\" data-id=\"c553277\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>As barragens de usinas hidrel\u00e9tricas s\u00e3o estruturas t\u00edpicas de concreto maci\u00e7o. Durante a hidrata\u00e7\u00e3o do cimento, uma grande quantidade de calor \u00e9 liberada, fazendo com que a temperatura interna aumente rapidamente, enquanto a superf\u00edcie dissipa o calor lentamente, criando um gradiente de temperatura. Quando a tens\u00e3o t\u00e9rmica excede a resist\u00eancia \u00e0 tra\u00e7\u00e3o do concreto, ocorrem rachaduras t\u00e9rmicas. As rachaduras n\u00e3o s\u00f3 afetam a apar\u00eancia estrutural, mas tamb\u00e9m podem comprometer a impermeabilidade da barragem e a seguran\u00e7a a longo prazo.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a94d6f0 elementor-widget elementor-widget-heading\" data-id=\"a94d6f0\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">2.2 Altos requisitos de impermeabilidade e durabilidade<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9fbed51 elementor-widget elementor-widget-text-editor\" data-id=\"9fbed51\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>As barragens est\u00e3o sujeitas \u00e0 press\u00e3o da \u00e1gua a longo prazo, aos ciclos de congelamento e descongelamento, ao desgaste da \u00e1gua e \u00e0 eros\u00e3o ambiental. O concreto deve ter excelente impermeabilidade, resist\u00eancia ao congelamento e resist\u00eancia \u00e0 eros\u00e3o qu\u00edmica para garantir a opera\u00e7\u00e3o segura e a vida \u00fatil do projeto da usina hidrel\u00e9trica.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ad993b4 elementor-widget elementor-widget-heading\" data-id=\"ad993b4\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">2.3 Condi\u00e7\u00f5es complexas de constru\u00e7\u00e3o<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-13fbe35 elementor-widget elementor-widget-text-editor\" data-id=\"13fbe35\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Os projetos de energia hidrel\u00e9trica geralmente est\u00e3o localizados em montanhas e desfiladeiros profundos, com transporte inconveniente e climas vari\u00e1veis. O concreto deve percorrer longas dist\u00e2ncias, suportar alta intensidade de coloca\u00e7\u00e3o e se adaptar a canteiros de obras estreitos. Ele precisa manter excelente fluidez e reten\u00e7\u00e3o de abatimento em condi\u00e7\u00f5es de alto abatimento e, ao mesmo tempo, acomodar v\u00e1rios m\u00e9todos de aplica\u00e7\u00e3o, como bombeamento e calhas.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5d65b07 elementor-widget elementor-widget-heading\" data-id=\"5d65b07\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">2.4 Conflito entre alta resist\u00eancia e alta fluidez<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-724b6d8 elementor-widget elementor-widget-text-editor\" data-id=\"724b6d8\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Certas partes da barragem (como os pilares da barragem em arco e as superf\u00edcies do vertedouro) t\u00eam requisitos elevados de resist\u00eancia do concreto. No entanto, o concreto de alta qualidade tende a ter alta viscosidade e baixa fluidez, criando dificuldades de constru\u00e7\u00e3o. Equilibrar a melhoria da resist\u00eancia com a melhoria da trabalhabilidade tem sido um desafio t\u00e9cnico para os projetos de energia hidrel\u00e9trica.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2574a91 elementor-widget elementor-widget-heading\" data-id=\"2574a91\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">III. Principais vantagens do superplastificante de policarboxilato no concreto de barragens de usinas hidrel\u00e9tricas<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f8db171 elementor-widget elementor-widget-image\" data-id=\"f8db171\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"800\" height=\"534\" src=\"https:\/\/tenessy.com\/wp-content\/uploads\/2026\/04\/Polycarboxylate-superplasticizers-1024x683.jpg\" class=\"attachment-large size-large wp-image-14163\" alt=\"\" srcset=\"https:\/\/tenessy.com\/wp-content\/uploads\/2026\/04\/Polycarboxylate-superplasticizers-1024x683.jpg 1024w, https:\/\/tenessy.com\/wp-content\/uploads\/2026\/04\/Polycarboxylate-superplasticizers-300x200.jpg 300w, https:\/\/tenessy.com\/wp-content\/uploads\/2026\/04\/Polycarboxylate-superplasticizers-768x512.jpg 768w, https:\/\/tenessy.com\/wp-content\/uploads\/2026\/04\/Polycarboxylate-superplasticizers-1536x1024.jpg 1536w, https:\/\/tenessy.com\/wp-content\/uploads\/2026\/04\/Polycarboxylate-superplasticizers-2048x1365.jpg 2048w, https:\/\/tenessy.com\/wp-content\/uploads\/2026\/04\/Polycarboxylate-superplasticizers-18x12.jpg 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6c25c99 elementor-widget elementor-widget-heading\" data-id=\"6c25c99\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">3.1 Redu\u00e7\u00e3o superior de \u00e1gua e aumento da resist\u00eancia<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9fd1a6b elementor-widget elementor-widget-text-editor\" data-id=\"9fd1a6b\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\">A maior vantagem t\u00e9cnica do superplastificante de policarboxilato est\u00e1 em sua\u00a0<strong>alta taxa de redu\u00e7\u00e3o de \u00e1gua<\/strong>. Sob a mesma propor\u00e7\u00e3o \u00e1gua-cimento, sua taxa de redu\u00e7\u00e3o de \u00e1gua pode chegar a 25%-35%, significativamente maior do que a 15%-20% dos superplastificantes \u00e0 base de naftaleno. Isso significa que:<\/p><ul><li><p class=\"ds-markdown-paragraph\"><strong>Redu\u00e7\u00e3o do consumo de \u00e1gua:<\/strong>\u00a0Com a mesma propor\u00e7\u00e3o de \u00e1gua e cimento, o consumo unit\u00e1rio de \u00e1gua pode ser significativamente reduzido, diminuindo assim o consumo de cimento e economizando custos<\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>Aumento da for\u00e7a:<\/strong>\u00a0Mantendo a mesma fluidez, a rela\u00e7\u00e3o \u00e1gua-cimento pode ser significativamente reduzida, melhorando substancialmente a resist\u00eancia inicial e posterior do concreto<\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>Projeto de mistura otimizado:<\/strong>\u00a0Oferece maior flexibilidade para a formula\u00e7\u00e3o de concreto de alto desempenho, permitindo a aplica\u00e7\u00e3o de concreto de alta resist\u00eancia, como o C80 e o C100, em projetos hidrel\u00e9tricos<\/p><\/li><\/ul><p class=\"ds-markdown-paragraph\"><strong>Valor de engenharia:<\/strong>\u00a0Para um volume de concreto de um milh\u00e3o de metros c\u00fabicos, a redu\u00e7\u00e3o do consumo de cimento em 10 kg\/m\u00b3 economiza dezenas de milhares de toneladas de cimento, gerando benef\u00edcios econ\u00f4micos significativos. Enquanto isso, a melhoria da resist\u00eancia proporcionada pela alta redu\u00e7\u00e3o de \u00e1gua fornece suporte t\u00e9cnico para a otimiza\u00e7\u00e3o estrutural da barragem.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7965ad2 elementor-widget elementor-widget-heading\" data-id=\"7965ad2\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">3.2 Excelente reten\u00e7\u00e3o de slump, garantindo a continuidade da constru\u00e7\u00e3o<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d4052c5 elementor-widget elementor-widget-text-editor\" data-id=\"d4052c5\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\">Os superplastificantes tradicionais (especialmente os \u00e0 base de naftalina) geralmente sofrem com a r\u00e1pida perda de abatimento. O concreto geralmente requer adi\u00e7\u00e3o secund\u00e1ria de \u00e1gua ou ajuste da mistura ao chegar ao local, afetando a efici\u00eancia e a qualidade da constru\u00e7\u00e3o.<\/p><p class=\"ds-markdown-paragraph\">Superplastificante de policarboxilato, por meio de\u00a0<strong>designabilidade da estrutura molecular<\/strong>, alcan\u00e7a\u00a0<strong>essencialmente sem perda de slump em 2 a 3 horas<\/strong>. O mecanismo envolve:<\/p><ul><li><p class=\"ds-markdown-paragraph\">Hidr\u00f3lise gradual de cadeias laterais de polioxietileno em ambientes alcalinos, liberando continuamente efeitos dispersantes<\/p><\/li><li><p class=\"ds-markdown-paragraph\">Intera\u00e7\u00e3o sin\u00e9rgica entre componentes retardadores e componentes dispersantes, retardando o processo de hidrata\u00e7\u00e3o do cimento<\/p><\/li><\/ul><p class=\"ds-markdown-paragraph\"><strong>Valor de engenharia:<\/strong>\u00a0O concreto da usina hidrel\u00e9trica geralmente requer transporte de longa dist\u00e2ncia e tempo de espera prolongado antes da coloca\u00e7\u00e3o. A excelente reten\u00e7\u00e3o do slump garante que o concreto mantenha uma boa trabalhabilidade ao chegar ao local, evitando a redu\u00e7\u00e3o da resist\u00eancia e a degrada\u00e7\u00e3o da durabilidade causadas pela adi\u00e7\u00e3o de \u00e1gua no local.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0a0f305 elementor-widget elementor-widget-heading\" data-id=\"0a0f305\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">3.3 Redu\u00e7\u00e3o efetiva do calor de hidrata\u00e7\u00e3o, contribuindo para o controle da temperatura e a preven\u00e7\u00e3o de rachaduras<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-73d15c6 elementor-widget elementor-widget-text-editor\" data-id=\"73d15c6\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\">As rachaduras t\u00e9rmicas no concreto maci\u00e7o s\u00e3o um dos principais riscos \u00e0 qualidade dos projetos hidrel\u00e9tricos. O superplastificante de policarboxilato contribui para o controle da temperatura e a preven\u00e7\u00e3o de rachaduras de duas maneiras:<\/p><ul><li><p class=\"ds-markdown-paragraph\"><strong>Redu\u00e7\u00e3o do consumo de cimento:<\/strong>\u00a0A alta taxa de redu\u00e7\u00e3o de \u00e1gua permite uma redu\u00e7\u00e3o de 10%-15% no consumo de cimento e, ao mesmo tempo, atende aos requisitos de resist\u00eancia. A redu\u00e7\u00e3o do consumo de cimento diminui diretamente o calor total de hidrata\u00e7\u00e3o por unidade de volume de concreto.<\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>Pico de hidrata\u00e7\u00e3o retardado:<\/strong>\u00a0Por meio do projeto da estrutura molecular, o superplastificante de policarboxilato pode incorporar fun\u00e7\u00f5es de retardamento, tornando a curva de libera\u00e7\u00e3o de calor de hidrata\u00e7\u00e3o mais suave e reduzindo a taxa de aumento de temperatura e a temperatura de pico.<\/p><\/li><\/ul><p class=\"ds-markdown-paragraph\"><strong>Valor de engenharia:<\/strong>\u00a0Na constru\u00e7\u00e3o de mega usinas hidrel\u00e9tricas, como Xiluodu e Baihetan, o superplastificante de policarboxilato trabalhou em sinergia com tubos de resfriamento, cura com temperatura controlada e outras medidas para atingir com sucesso as metas de controle de temperatura para o concreto da barragem, gerenciando com efic\u00e1cia os riscos de rachaduras.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ad163f6 elementor-widget elementor-widget-heading\" data-id=\"ad163f6\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">3.4 Melhoria da trabalhabilidade do concreto, adaptando-se a condi\u00e7\u00f5es complexas de constru\u00e7\u00e3o<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-23085ca elementor-widget elementor-widget-text-editor\" data-id=\"23085ca\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\">A constru\u00e7\u00e3o de concreto de usinas hidrel\u00e9tricas envolve v\u00e1rias condi\u00e7\u00f5es complexas, como grandes quedas verticais, longas dist\u00e2ncias e espa\u00e7os confinados, o que imp\u00f5e altas exig\u00eancias \u00e0 trabalhabilidade do concreto. O superplastificante de policarboxilato confere as seguintes excelentes propriedades ao concreto:<\/p><ul><li><p class=\"ds-markdown-paragraph\"><strong>Alta fluidez:<\/strong>\u00a0O slump pode atingir mais de 220 mm, o fluxo de slump pode exceder 600 mm, adequado para v\u00e1rios m\u00e9todos de entrega, como bombeamento e calhas<\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>Baixa viscosidade:<\/strong>\u00a0Por meio do design molecular, a viscosidade da pasta \u00e9 reduzida, resolvendo a dificuldade de constru\u00e7\u00e3o do concreto de alta qualidade que \u00e9 \"viscoso e pesado\"<\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>Anti-segrega\u00e7\u00e3o:<\/strong>\u00a0Mant\u00e9m boa homogeneidade em condi\u00e7\u00f5es de alta fluidez, evitando a segrega\u00e7\u00e3o e o sangramento dos agregados<\/p><\/li><\/ul><p class=\"ds-markdown-paragraph\"><strong>Valor de engenharia:<\/strong>\u00a0Em \u00e1reas estruturalmente complexas, como barragens em arco e barragens de gravidade, o concreto de alta fluidez pode preencher totalmente os cantos das f\u00f4rmas, garantindo a densidade do concreto e a qualidade da apar\u00eancia; em espa\u00e7os confinados, como galerias e c\u00e2maras estreitas, a baixa viscosidade e o bom desempenho de bombeamento reduzem significativamente a dificuldade de constru\u00e7\u00e3o.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-940e9b3 elementor-widget elementor-widget-heading\" data-id=\"940e9b3\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">3.5 Durabilidade aprimorada, ampliando a vida \u00fatil do projeto<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4da8f6b elementor-widget elementor-widget-text-editor\" data-id=\"4da8f6b\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\">As barragens de usinas hidrel\u00e9tricas normalmente t\u00eam vida \u00fatil de 50 a 100 anos, o que torna a durabilidade extremamente importante. O superplastificante de policarboxilato aumenta a durabilidade do concreto por meio dos seguintes mecanismos:<\/p><ul><li><p class=\"ds-markdown-paragraph\"><strong>Redu\u00e7\u00e3o da rela\u00e7\u00e3o \u00e1gua-cimento:<\/strong>\u00a0A menor rela\u00e7\u00e3o \u00e1gua-cimento reduz a porosidade e refina a estrutura dos poros no concreto endurecido, melhorando significativamente a impermeabilidade (o grau de impermeabilidade pode chegar a P12 ou superior)<\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>Redu\u00e7\u00e3o do encolhimento:<\/strong>\u00a0Os efeitos combinados da redu\u00e7\u00e3o do consumo de cimento e do controle do calor de hidrata\u00e7\u00e3o diminuem a retra\u00e7\u00e3o por secagem e a retra\u00e7\u00e3o t\u00e9rmica, reduzindo o risco de rachaduras<\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>Zona de transi\u00e7\u00e3o interfacial aprimorada:<\/strong>\u00a0O efeito de dispers\u00e3o permite uma hidrata\u00e7\u00e3o mais completa do cimento, resultando em uma zona de transi\u00e7\u00e3o interfacial agregado-pasta mais densa, melhorando a resist\u00eancia ao congelamento-descongelamento e \u00e0 eros\u00e3o qu\u00edmica<\/p><\/li><\/ul><p class=\"ds-markdown-paragraph\"><strong>Valor de engenharia:<\/strong>\u00a0Para usinas hidrel\u00e9tricas localizadas em regi\u00f5es frias, a excelente resist\u00eancia ao congelamento e ao degelo est\u00e1 diretamente relacionada \u00e0 opera\u00e7\u00e3o segura da barragem; para projetos com ambientes agressivos de \u00e1guas subterr\u00e2neas, a alta impermeabilidade e a resist\u00eancia \u00e0 eros\u00e3o qu\u00edmica s\u00e3o fundamentais.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-83ea234 elementor-widget elementor-widget-heading\" data-id=\"83ea234\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">IV. Precau\u00e7\u00f5es na aplica\u00e7\u00e3o do superplastificante de policarboxilato<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-508267e elementor-widget elementor-widget-text-editor\" data-id=\"508267e\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Embora o superplastificante de policarboxilato ofere\u00e7a vantagens significativas, os seguintes pontos devem ser observados em aplica\u00e7\u00f5es pr\u00e1ticas para garantir o desempenho total:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8ac7037 elementor-widget elementor-widget-heading\" data-id=\"8ac7037\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">4.1 Compatibilidade com cimento<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3712386 elementor-widget elementor-widget-text-editor\" data-id=\"3712386\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>A compatibilidade do superplastificante de policarboxilato varia com diferentes cimentos. Recomenda-se realizar\u00a0<strong>testes de compatibilidade<\/strong>\u00a0antes da aplica\u00e7\u00e3o de engenharia para determinar a dosagem ideal e os efeitos da composi\u00e7\u00e3o com agentes retardadores, agentes de reten\u00e7\u00e3o de ar e outros componentes.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f0ae9c0 elementor-widget elementor-widget-heading\" data-id=\"f0ae9c0\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">4.2 Sensibilidade ao consumo de \u00e1gua<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1eb0164 elementor-widget elementor-widget-text-editor\" data-id=\"1eb0164\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>O superplastificante de policarboxilato \u00e9 sens\u00edvel ao consumo de \u00e1gua. As flutua\u00e7\u00f5es no consumo de \u00e1gua afetam significativamente a taxa de redu\u00e7\u00e3o de \u00e1gua e o slump. Deve-se manter um controle rigoroso da dosagem durante a constru\u00e7\u00e3o, e a adi\u00e7\u00e3o de \u00e1gua no local deve ser evitada.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bebc9e1 elementor-widget elementor-widget-heading\" data-id=\"bebc9e1\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">4.3 N\u00e3o misture com superplastificantes \u00e0 base de naftaleno<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-afec9f6 elementor-widget elementor-widget-text-editor\" data-id=\"afec9f6\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Superplastificante de policarboxilato e superplastificante \u00e0 base de naftaleno\u00a0<strong>n\u00e3o devem ser misturados<\/strong>. A mistura dos dois pode causar uma grave degrada\u00e7\u00e3o do desempenho ou at\u00e9 mesmo uma falha completa. Ao trocar os tipos de aditivos, \u00e9 necess\u00e1ria uma limpeza completa do equipamento de mistura e dos caminh\u00f5es-tanque de transporte.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cc1adea elementor-widget elementor-widget-heading\" data-id=\"cc1adea\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">4.4 Controle de dosagem<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5f5b821 elementor-widget elementor-widget-text-editor\" data-id=\"5f5b821\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>A dosagem do superplastificante de policarboxilato \u00e9 normalmente de 0,15%-0,3% do conte\u00fado do material ciment\u00edcio. A dosagem insuficiente resulta em desempenho insatisfat\u00f3rio, enquanto a dosagem excessiva pode causar retardamento excessivo ou sangramento. A dosagem real deve ser determinada por meio de testes e rigorosamente controlada durante a constru\u00e7\u00e3o.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a3f4944 elementor-widget elementor-widget-heading\" data-id=\"a3f4944\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">V. Conclus\u00e3o<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8fce879 elementor-widget elementor-widget-text-editor\" data-id=\"8fce879\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\">O superplastificante de policarboxilato, com sua alta taxa de redu\u00e7\u00e3o de \u00e1gua, excelente reten\u00e7\u00e3o de abatimento, baixo calor de hidrata\u00e7\u00e3o, boa melhoria da trabalhabilidade e aumento da durabilidade, tornou-se um material funcional essencial indispens\u00e1vel para o concreto de barragens de usinas hidrel\u00e9tricas.\u00a0<\/p><p class=\"ds-markdown-paragraph\">\u00c0 medida que os projetos de energia hidrel\u00e9trica se desenvolvem em dire\u00e7\u00e3o a barragens mais altas, escalas maiores e condi\u00e7\u00f5es geol\u00f3gicas mais complexas, os requisitos de desempenho do concreto continuar\u00e3o a aumentar. As dire\u00e7\u00f5es de desenvolvimento futuro da tecnologia de superplastificantes de policarboxilato se concentrar\u00e3o em:<\/p><ul><li><p class=\"ds-markdown-paragraph\"><strong>Projeto preciso de estrutura molecular:<\/strong>\u00a0Desenvolvimento de produtos personalizados para atender a diferentes requisitos de engenharia<\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>Verde e com baixo teor de carbono:<\/strong>\u00a0Reduzir ainda mais o consumo de energia na produ\u00e7\u00e3o e melhorar <a href=\"https:\/\/tenessy.com\/hpmc-supplier\/sustainability\/\">respeito ao meio ambiente<\/a><\/p><\/li><\/ul><p class=\"ds-markdown-paragraph\">Como um fornecedor profissional de aditivos para constru\u00e7\u00e3o,\u00a0<a href=\"https:\/\/tenessy.com\/hpmc-supplier\/\"><strong>TENESSIA<\/strong><\/a>\u00a0continuar\u00e1 a cultivar profundamente o campo da tecnologia de superplastificantes de policarboxilato, fornecendo produtos de alto desempenho e alta estabilidade e <a href=\"https:\/\/tenessy.com\/contact\/\">suporte t\u00e9cnico<\/a> para projetos de energia hidrel\u00e9trica e uma gama mais ampla de aplica\u00e7\u00f5es de concreto.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>O superplastificante de policarboxilato, como aditivo de concreto de alto desempenho de terceira gera\u00e7\u00e3o, tornou-se gradualmente o aditivo preferido para o concreto de barragens de usinas hidrel\u00e9tricas devido \u00e0s suas vantagens t\u00e9cnicas exclusivas.<\/p>","protected":false},"author":1,"featured_media":14162,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[35],"tags":[],"class_list":["post-14157","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry-news"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.7 - 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