{"id":28841,"date":"2025-10-11T08:08:06","date_gmt":"2025-10-11T08:08:06","guid":{"rendered":"https:\/\/jackwinsafety.com\/?p=28841"},"modified":"2025-10-12T00:50:40","modified_gmt":"2025-10-12T00:50:40","slug":"trabalhabilidade-do-concreto","status":"publish","type":"post","link":"https:\/\/jackwinsafety.com\/pt\/workability-of-concrete\/","title":{"rendered":"Trabalhabilidade do Concreto: Tipos, Fatores e Teste de Trabalhabilidade"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">Como construtor, voc\u00ea sempre precisa de uma mistura de concreto resistente e f\u00e1cil de aplicar. Para isso, voc\u00ea precisa conhecer a trabalhabilidade do concreto.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Por isso, explicamos todos os fatores que podem afetar a trabalhabilidade do concreto com uma propor\u00e7\u00e3o de mistura padr\u00e3o. Al\u00e9m disso, voc\u00ea tamb\u00e9m ver\u00e1 diversos testes para verificar uma mistura.<\/span><\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_89 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 \u00edndice\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Alternar<\/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:\/\/jackwinsafety.com\/pt\/workability-of-concrete\/#What_is_Workability_of_Concrete\" >O que \u00e9 trabalhabilidade do concreto?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/jackwinsafety.com\/pt\/workability-of-concrete\/#Factors_Affecting_Workability_of_Concrete\" >Fatores que afetam a trabalhabilidade do concreto<\/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:\/\/jackwinsafety.com\/pt\/workability-of-concrete\/#Ratio_of_Cement_Water\" >Propor\u00e7\u00e3o de cimento e \u00e1gua<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/jackwinsafety.com\/pt\/workability-of-concrete\/#Aggregation_of_Size_and_Shape\" >Agrega\u00e7\u00e3o de tamanho e forma<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/jackwinsafety.com\/pt\/workability-of-concrete\/#Admixtures_in_Concrete\" >Aditivos em Concreto<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/jackwinsafety.com\/pt\/workability-of-concrete\/#Sand_Cement_Ratio\" >Propor\u00e7\u00e3o de areia e cimento<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/jackwinsafety.com\/pt\/workability-of-concrete\/#Mixing_Method_of_Concrete\" >M\u00e9todo de mistura de concreto<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/jackwinsafety.com\/pt\/workability-of-concrete\/#Standard_Concrete_Mix_Ratio\" >Propor\u00e7\u00e3o de mistura de concreto padr\u00e3o<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/jackwinsafety.com\/pt\/workability-of-concrete\/#Types_of_Workability_of_Concrete\" >Tipos de Trabalhabilidade do Concreto<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/jackwinsafety.com\/pt\/workability-of-concrete\/#Unworkable_Concrete\" >Concreto Impratic\u00e1vel<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/jackwinsafety.com\/pt\/workability-of-concrete\/#Medium_Workable_Concrete\" >Concreto M\u00e9dio Trabalh\u00e1vel<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/jackwinsafety.com\/pt\/workability-of-concrete\/#Highly_Workable_Concrete\" >Concreto altamente trabalh\u00e1vel<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/jackwinsafety.com\/pt\/workability-of-concrete\/#Workability_Test_of_Concrete_Measurement_of_Workability\" >Ensaio de Trabalhabilidade do Concreto \/ Medi\u00e7\u00e3o da Trabalhabilidade<\/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:\/\/jackwinsafety.com\/pt\/workability-of-concrete\/#Slump_Test_of_Concrete\" >Ensaio de abatimento de concreto<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/jackwinsafety.com\/pt\/workability-of-concrete\/#Compaction_test_of_concrete\" >Ensaio de compacta\u00e7\u00e3o de concreto<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/jackwinsafety.com\/pt\/workability-of-concrete\/#Flow_Table_Test_of_Concrete\" >Ensaio de mesa de fluxo de concreto<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/jackwinsafety.com\/pt\/workability-of-concrete\/#Vee-Bee_Test_of_Concrete\" >Teste Vee-Bee de Concreto<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/jackwinsafety.com\/pt\/workability-of-concrete\/#Kelly_Ball_Test_of_Concrete\" >Teste de concreto de Kelly Ball<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/jackwinsafety.com\/pt\/workability-of-concrete\/#Workability_of_Concrete_Can_be_Improved_By\" >A trabalhabilidade do concreto pode ser melhorada por<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/jackwinsafety.com\/pt\/workability-of-concrete\/#What_is_the_Characteristic_Strength_of_Concrete\" >Qual \u00e9 a resist\u00eancia caracter\u00edstica do concreto?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/jackwinsafety.com\/pt\/workability-of-concrete\/#Final_Thoughts\" >Considera\u00e7\u00f5es finais<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/jackwinsafety.com\/pt\/workability-of-concrete\/#FAQs\" >Perguntas frequentes<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/jackwinsafety.com\/pt\/workability-of-concrete\/#Which_Chemical_Admixtures_are_Used_in_Concrete\" >Quais aditivos qu\u00edmicos s\u00e3o usados no concreto?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/jackwinsafety.com\/pt\/workability-of-concrete\/#How_to_Mix_Concrete_by_Hand\" >Como misturar concreto manualmente?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/jackwinsafety.com\/pt\/workability-of-concrete\/#How_Higher_Workability_of_Concrete_is_Required\" >Como \u00e9 necess\u00e1ria uma maior trabalhabilidade do concreto?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"What_is_Workability_of_Concrete\"><\/span><b>O que \u00e9 trabalhabilidade do concreto?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Trabalhabilidade do concreto significa a facilidade com que voc\u00ea pode misturar, aplicar e consolidar concreto rec\u00e9m-preparado. Suponha que voc\u00ea esteja trabalhando em uma constru\u00e7\u00e3o. Portanto, neste caso, a trabalhabilidade do concreto ser\u00e1 sua conveni\u00eancia para construir diferentes estruturas sem perder sua resist\u00eancia.<br \/>\nSe o concreto tiver boa trabalhabilidade, os trabalhadores podem facilmente despej\u00e1-lo em moldes e tamb\u00e9m espalh\u00e1-lo ao redor de barras de a\u00e7o e cantos. Fatores importantes que determinam a trabalhabilidade do concreto incluem a propor\u00e7\u00e3o de \u00e1gua, cimento e areia, etc.<\/p>\n<figure id=\"attachment_28844\" aria-describedby=\"caption-attachment-28844\" style=\"width: 700px\" class=\"wp-caption alignnone\"><img decoding=\"async\" class=\"size-full wp-image-28844\" src=\"https:\/\/jackwinsafety.com\/wp-content\/uploads\/2025\/10\/Concrete.png\" alt=\"Concreto\" width=\"700\" height=\"350\" srcset=\"https:\/\/jackwinsafety.com\/wp-content\/uploads\/2025\/10\/Concrete.png 700w, https:\/\/jackwinsafety.com\/wp-content\/uploads\/2025\/10\/Concrete-18x9.png 18w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><figcaption id=\"caption-attachment-28844\" class=\"wp-caption-text\">Concreto<\/figcaption><\/figure>\n<h2><span class=\"ez-toc-section\" id=\"Factors_Affecting_Workability_of_Concrete\"><\/span><b>Fatores que afetam a trabalhabilidade do concreto<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Ratio_of_Cement_Water\"><\/span><b>Propor\u00e7\u00e3o de cimento e \u00e1gua<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">\u00c9 necess\u00e1rio adicionar uma quantidade equilibrada de \u00e1gua e cimento \u00e0 mistura para aumentar sua trabalhabilidade. Na verdade, quanto mais \u00e1gua se adiciona \u00e0 mistura, mais fluida e trabalh\u00e1vel ela se torna. Principalmente quando o espa\u00e7o \u00e9 apertado ou o projeto \u00e9 complexo.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Por outro lado, misturas menos aquosas podem criar muitos problemas. No entanto, \u00e9 usado para fazer tanques de \u00e1gua, edif\u00edcios altos, etc.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Aggregation_of_Size_and_Shape\"><\/span><b>Agrega\u00e7\u00e3o de tamanho e forma<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Bem, agregados s\u00e3o pedras misturadas ao concreto. Se voc\u00ea usar pedras maiores e planas, elas podem criar mais espa\u00e7os vazios. E voc\u00ea ter\u00e1 dificuldade para trabalhar com elas. Mas quando voc\u00ea adiciona pequenas pedras arredondadas, elas tornam a mistura lisa e dur\u00e1vel.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Admixtures_in_Concrete\"><\/span><b>Aditivos em Concreto<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Se quiser tornar a mistura mais trabalh\u00e1vel, voc\u00ea pode usar ingredientes especiais. Alguns aditivos comuns s\u00e3o redutores de \u00e1gua, plastificantes e superplastificantes. Quando voc\u00ea adiciona esses tipos de ingredientes \u00e0 mistura, eles reduzem a necessidade de \u00e1gua.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Sand_Cement_Ratio\"><\/span><b>Propor\u00e7\u00e3o de areia e cimento<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Uma propor\u00e7\u00e3o maior de cimento e areia significa que voc\u00ea obter\u00e1 mais pasta no concreto, o que melhora a trabalhabilidade da sua mistura. Por outro lado, uma propor\u00e7\u00e3o baixa pode tornar a mistura dura e dif\u00edcil de manusear.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Mixing_Method_of_Concrete\"><\/span><b>M\u00e9todo de mistura de concreto<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Quando voc\u00ea mistura o concreto corretamente, o cimento, a areia, as pedras, os aditivos e a \u00e1gua s\u00e3o distribu\u00eddos uniformemente. Se voc\u00ea misturar o concreto de forma insuficiente, a mistura pode ficar seca e dif\u00edcil de manusear.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Standard_Concrete_Mix_Ratio\"><\/span><b>Propor\u00e7\u00e3o de mistura de concreto padr\u00e3o<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Voc\u00ea pode ler esta tabela se quiser fazer uma mistura de concreto equilibrada e forte que possa passar em todos os testes.<\/span><\/p>\n<table>\n<tbody>\n<tr>\n<td><b>Fatores<\/b><\/td>\n<td><b>Trabalhabilidade<\/b><\/td>\n<td><b>Melhor Propor\u00e7\u00e3o<\/b><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Rela\u00e7\u00e3o \u00c1gua\/Cimento<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Mais \u00e1gua resulta em melhor fluxo<\/span><\/td>\n<td><span style=\"font-weight: 400;\">0,4 a 0,6<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Agregar<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Menos cimento significa menos lubrifica\u00e7\u00e3o<\/span><\/td>\n<td><span style=\"font-weight: 400;\">4:1 a 6:1<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Tamanho agregado<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Tamanho maior requer menos mistura\u00a0<\/span><\/td>\n<td><span style=\"font-weight: 400;\">10 mm \u2013 20 mm<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Forma agregada<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Formas redondas formam uma boa pasta<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Arredondado<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Misturas<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Ajuda voc\u00ea a espalhar mais cimento<\/span><\/td>\n<td><span style=\"font-weight: 400;\">0,2% para 2%<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Tempo e temperatura<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Mais quente e mais tempo fazem o cimento endurecer mais r\u00e1pido<\/span><\/td>\n<td><span style=\"font-weight: 400;\">10\u00b0C a 25\u00b0C<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><span class=\"ez-toc-section\" id=\"Types_of_Workability_of_Concrete\"><\/span><b>Tipos de Trabalhabilidade do Concreto<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Unworkable_Concrete\"><\/span><b>Concreto Impratic\u00e1vel<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Como o pr\u00f3prio nome indica, esse tipo de concreto n\u00e3o \u00e9 f\u00e1cil de aplicar. A aplica\u00e7\u00e3o ocorre quando a quantidade de \u00e1gua \u00e9 baixa e o cimento \u00e9 alto na mistura. No entanto, esse tipo de concreto ainda \u00e9 usado em estruturas de concreto maiores e mais espessas. Por exemplo, na constru\u00e7\u00e3o de barragens, pilares de sustenta\u00e7\u00e3o e pontes.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Medium_Workable_Concrete\"><\/span><b>Concreto M\u00e9dio Trabalh\u00e1vel<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Bem, voc\u00ea pode obter isso adicionando uma quantidade equilibrada de \u00e1gua, cimento e aditivos. Portanto, \u00e9 f\u00e1cil de manusear em compara\u00e7\u00e3o com o concreto n\u00e3o trabalh\u00e1vel. Por isso, \u00e9 comumente usado em canteiros de obras. Por exemplo, voc\u00ea pode us\u00e1-lo para fazer vigas, pisos, paredes e funda\u00e7\u00f5es.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Highly_Workable_Concrete\"><\/span><b>Concreto altamente trabalh\u00e1vel<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Esta \u00e9 a mistura com excesso de \u00e1gua, o que a torna f\u00e1cil de usar e espalhar. Mas requer cuidado extra para que o composto n\u00e3o fique segregado. Voc\u00ea pode us\u00e1-la em designs curvos e espa\u00e7os apertados.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Tamb\u00e9m \u00e9 adequado para quem deseja bombear concreto em edif\u00edcios altos. Al\u00e9m disso, \u00e9 ideal para constru\u00e7\u00f5es subaqu\u00e1ticas e concreto autoadens\u00e1vel.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Workability_Test_of_Concrete_Measurement_of_Workability\"><\/span><b>Ensaio de Trabalhabilidade do Concreto \/ Medi\u00e7\u00e3o da Trabalhabilidade<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Como verificar a trabalhabilidade do concreto? Voc\u00ea pode verificar a trabalhabilidade das misturas de concreto por meio destes testes comuns.<\/span><\/p>\n<ul>\n<li aria-level=\"1\">\n<h3><span class=\"ez-toc-section\" id=\"Slump_Test_of_Concrete\"><\/span><b>Ensaio de abatimento de concreto<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">O teste de abatimento \u00e9 o m\u00e9todo mais comum para medir a trabalhabilidade do concreto. Basicamente, voc\u00ea coloca um molde em formato de cone no ch\u00e3o e o preenche com concreto fresco. Em seguida, levanta o cone para cima; se o concreto se acomodar facilmente, estar\u00e1 mais trabalh\u00e1vel.<\/span><\/p>\n<ul>\n<li aria-level=\"1\">\n<h3><span class=\"ez-toc-section\" id=\"Compaction_test_of_concrete\"><\/span><b>Ensaio de compacta\u00e7\u00e3o de concreto<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Neste teste, voc\u00ea pega uma quantidade espec\u00edfica de concreto fresco e o joga dentro do cilindro. Voc\u00ea precisa cair de uma certa altura e observar seu comportamento. Quanto mais concreto couber no cilindro, mais macio e trabalh\u00e1vel ele ser\u00e1. E menos concreto representa menos trabalhabilidade.<\/span><\/p>\n<ul>\n<li aria-level=\"1\">\n<h3><span class=\"ez-toc-section\" id=\"Flow_Table_Test_of_Concrete\"><\/span><b>Ensaio de mesa de fluxo de concreto<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Neste teste, voc\u00ea pode ver um molde em formato de cone e uma mesa plana de metal. Voc\u00ea pode usar este cone da mesma forma que no teste de abatimento, mas a diferen\u00e7a est\u00e1 na mesa de fluxo. Neste caso, voc\u00ea despeja o concreto sobre a mesa a partir do cone e verifica seu di\u00e2metro. Portanto, se ele se espalhar mais sobre a mesa, a mistura ficar\u00e1 mais trabalh\u00e1vel.<\/span><\/p>\n<ul>\n<li aria-level=\"1\">\n<h3><span class=\"ez-toc-section\" id=\"Vee-Bee_Test_of_Concrete\"><\/span><b>Teste Vee-Bee de Concreto<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Este teste verifica a rapidez com que o concreto fresco consegue preencher e sedimentar em um determinado formato. Se o concreto for mais trabalh\u00e1vel e liso, ele ser\u00e1 preenchido rapidamente. Mas se levar mais tempo, ser\u00e1 menos trabalh\u00e1vel.<\/span><\/p>\n<ul>\n<li aria-level=\"1\">\n<h3><span class=\"ez-toc-section\" id=\"Kelly_Ball_Test_of_Concrete\"><\/span><b>Teste de concreto de Kelly Ball<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Quer verificar a trabalhabilidade da maneira mais r\u00e1pida? Bem, voc\u00ea pode usar o teste da Bola de Kelly para isso. Basicamente, este teste envolve uma bola de metal pesada (13,6 kg e 15 cm de largura) com o formato de uma meia esfera.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Voc\u00ea pode calcular a trabalhabilidade pela profundidade da bola. Portanto, se a bola afundar mais na mistura, \u00e9 mais f\u00e1cil de usar. Por outro lado, se voc\u00ea perceber que ela n\u00e3o afunda facilmente, \u00e9 mais dif\u00edcil.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Workability_of_Concrete_Can_be_Improved_By\"><\/span><b>A trabalhabilidade do concreto pode ser melhorada por<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Voc\u00ea pode aumentar a propor\u00e7\u00e3o de \u00e1gua de acordo com o cimento.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Se voc\u00ea adicionar agregados mais arredondados e lisos, ele pode ser mais dur\u00e1vel.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Voc\u00ea deve aumentar o tempo de mistura. Para isso, certifique-se de que cada componente do concreto esteja bem compactado.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">A temperatura tamb\u00e9m afeta a trabalhabilidade, ent\u00e3o voc\u00ea pode aumentar a temperatura durante a mistura.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Agregados n\u00e3o porosos s\u00e3o mais adequados para melhorar o fluxo, ent\u00e3o voc\u00ea pode adicion\u00e1-los.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">A adi\u00e7\u00e3o de aditivos como plastificantes ou redutores de \u00e1gua pode tornar o concreto mais duradouro.<\/span><\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"What_is_the_Characteristic_Strength_of_Concrete\"><\/span><b>Qual \u00e9 a resist\u00eancia caracter\u00edstica do concreto?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">A resist\u00eancia caracter\u00edstica indica a resist\u00eancia m\u00ednima que se pode esperar de uma mistura. Bem, como engenheiro, este teste de resist\u00eancia ajuda voc\u00ea a confiar na qualidade de uma mistura.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Para isso, voc\u00ea precisa testar muitas amostras. Este teste fornece o resultado exato ap\u00f3s 28 dias em 100 cubos de concreto seco. Portanto, quando 95% de cubos atingem o valor m\u00e9dio do teste (20 MPa), sua mistura est\u00e1 suficientemente forte.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Final_Thoughts\"><\/span><b>Considera\u00e7\u00f5es finais<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Por fim, podemos dizer que a trabalhabilidade do concreto \u00e9 o fator mais importante para voc\u00ea. Mas voc\u00ea deve ajust\u00e1-la de acordo com as necessidades do seu projeto.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Portanto, certifique-se de adicionar uma quantidade equilibrada de cada componente e teste antes de usar.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"FAQs\"><\/span><b>Perguntas frequentes<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Which_Chemical_Admixtures_are_Used_in_Concrete\"><\/span><b>Quais aditivos qu\u00edmicos s\u00e3o usados no concreto?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Comumente, voc\u00ea pode encontrar aditivos como plastificantes, superplastificantes, retardadores, aceleradores e agentes incorporadores de ar.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"How_to_Mix_Concrete_by_Hand\"><\/span><b>Como misturar concreto manualmente?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Voc\u00ea precisa combinar todos os materiais secos e fazer um buraco no centro. Em seguida, adicione \u00e1gua e misture at\u00e9 obter uma consist\u00eancia trabalh\u00e1vel.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"How_Higher_Workability_of_Concrete_is_Required\"><\/span><b>Como \u00e9 necess\u00e1ria uma maior trabalhabilidade do concreto?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Normalmente, para maior trabalhabilidade, \u00e9 necess\u00e1rio um valor de abatimento entre 100 mm e 180 mm.<\/span><\/p>","protected":false},"excerpt":{"rendered":"<p>As a builder, you always need a concrete mixture that is strong and easy to apply. For this, you have to know about the workability of concrete. Therefore, we have explained all the factors that can affect concrete workability with a standard mix-ratio. Moreover, you will also see several tests [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":28843,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-28841","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Workability of Concrete: Types, Factors &amp; Workability Test<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jackwinsafety.com\/pt\/trabalhabilidade-do-concreto\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Workability of Concrete: Types, Factors &amp; Workability Test\" \/>\n<meta property=\"og:description\" content=\"As a builder, you always need a concrete mixture that is strong and easy to apply. 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