{"id":672,"date":"2023-02-01T04:24:00","date_gmt":"2023-02-01T04:24:00","guid":{"rendered":"https:\/\/site.ibracon.org.br\/Site_revista\/Concreto_Construcoes\/Concreto_blog\/?p=672"},"modified":"2025-07-31T02:06:05","modified_gmt":"2025-07-31T02:06:05","slug":"qualidade-concreto","status":"publish","type":"post","link":"https:\/\/site.ibracon.org.br\/Site_revista\/Concreto_Construcoes\/Concreto_blog\/press-releases\/qualidade-concreto\/","title":{"rendered":"Qualidade do concreto usinado no DF"},"content":{"rendered":"\n<p>O <strong>Projeto Indicadores do Concreto<\/strong> \u00e9 uma pesquisa mensal realizada nos canteiros de obras de incorpora\u00e7\u00f5es imobili\u00e1rias que mapeia a log\u00edstica de fornecimento e a qualidade do concreto usinado no Distrito Federal.<\/p>\n\n\n\n<p>Em julho de 2010, foi lan\u00e7ada a primeira etapa com dura\u00e7\u00e3o de um ano. Atualmente, o projeto est\u00e1 na13\u00aa etapa, abrangendo cerca de 80% dos canteiros de obras imobili\u00e1rias formais e 30% do concreto usinado produzido em Bras\u00edlia (<a href=\"http:\/\/www.projetoconcreto.org.br\/site\">www.projetoconcreto.org.br\/site<\/a>).<\/p>\n\n\n\n<p>Os indicadores apontaram que, em m\u00e9dia, de <strong>3% a 10% das ocorr\u00eancias<\/strong> nos canteiros de obras, ano a ano, eram <strong>relativas a problemas de concretagem<\/strong>, tais como: descontinuidade do processo de concretagem; execu\u00e7\u00e3o da concretagem; e qualidade do concreto.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-style-default\"><img fetchpriority=\"high\" decoding=\"async\" width=\"640\" height=\"480\" src=\"https:\/\/site.ibracon.org.br\/Site_revista\/Concreto_Construcoes\/Concreto_blog\/wp-content\/uploads\/2023\/01\/tipificacao.jpg\" alt=\"\" class=\"wp-image-673\" srcset=\"https:\/\/site.ibracon.org.br\/Site_revista\/Concreto_Construcoes\/Concreto_blog\/wp-content\/uploads\/2023\/01\/tipificacao.jpg 640w, https:\/\/site.ibracon.org.br\/Site_revista\/Concreto_Construcoes\/Concreto_blog\/wp-content\/uploads\/2023\/01\/tipificacao-300x225.jpg 300w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><figcaption>Problemas durante a concretagem<\/figcaption><\/figure>\n\n\n\n<p>Com o objetivo de quantificar as <strong>n\u00e3o conformidades dos concretos usinados<\/strong> no Distrito Federal e dar um panorama de sua qualidade para a sociedade e o setor construtivo, <a href=\"https:\/\/concretoeconstrucoes.org.br\/index.php\/revista\/edicao-107-artigo-003\" target=\"_blank\" rel=\"noreferrer noopener\">pesquisadores da Universidade de Bras\u00edlia<\/a> realizaram an\u00e1lises estat\u00edsticas de 1106 resultados de ensaios de resist\u00eancia \u00e0 compress\u00e3o realizados no SENAI-DF e de consist\u00eancia realizados nos canteiros de obras.<\/p>\n\n\n\n<p>Os concretos avaliados s\u00e3o de classe de resist\u00eancia caracter\u00edstica C30 e C40 e de consist\u00eancia de classe S160 e S220, fornecidos para a concretagem de funda\u00e7\u00f5es de tr\u00eas obras diferentes por tr\u00eas concreteiras distintas, no per\u00edodo de setembro de 2021 a mar\u00e7o de 2022.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Qualidade do concreto usinado no DF<\/h2>\n\n\n\n<p>As an\u00e1lises dos dados levaram os autores \u00e0s seguintes conclus\u00f5es:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>O <strong>concreto C30 do Distrito Federal possui um bom controle de produ\u00e7\u00e3o<\/strong>, uma vez que possui desvio-padr\u00e3o entre 3,4 MPa e 4,1 MPa; mas o C40 foi classificado como de baixo controle de produ\u00e7\u00e3o, j\u00e1 que seu desvio-padr\u00e3o \u00e9 superior a 4,8 MPa;<\/li><li>97% dos caminh\u00f5es betoneira apresentaram a consist\u00eancia do concreto na faixa especificada em projeto;<\/li><li><strong>O percentual total de aceita\u00e7\u00e3o do concreto C30 foi de 91,5%<\/strong>, j\u00e1 para os concretos das duas classes o percentual de aceita\u00e7\u00e3o ficou em 89,3%, tendo em vista o menor percentual de aprova\u00e7\u00e3o do concreto C40.<\/li><\/ul>\n\n\n\n<p>Quer saber mais sobre o assunto? Acesse a <a href=\"https:\/\/concretoeconstrucoes.org.br\/index.php\/revista\/edicao-107-artigo-001\" target=\"_blank\" rel=\"noreferrer noopener\">edi\u00e7\u00e3o 107 <\/a>da Revista CONCRETO &amp; Constru\u00e7\u00f5es.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Projeto Indicadores do Concreto do Sinduscon-DF e pesquisa da UnB avaliaram a qualidade do concreto usinado no Distrito Federal entregue nas obras<\/p>\n","protected":false},"author":2,"featured_media":674,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[4],"tags":[132,133,131],"class_list":["post-672","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-press-releases","tag-concreto-conforme","tag-concreto-nao-conforme","tag-qualidade-do-concreto-usinado"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - 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