2015
DOI: 10.1590/s1983-41952015000400008
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Impacts in the structural design of the 2014 revision of the brazilian standard ABNT NBR 6118

Abstract: Impacts in the structural design of the 2014 revision of the brazilian standard ABNT NBR 6118 Impactos no projeto estrutural da versão 2014 da norma brasileira ABNT NBR 6118Abstract Resumo With the issuing of the 2014 version of the Brazilian Standard ABNT NBR 6118 -Design of Concrete Structures, several procedures followed in the design offices shall be altered. The purpose of this paper is to furnish data to the designers, in order to facilitate the transition to the new version of the Standard. A summary of… Show more

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“…According to Brazilian standards, concrete is considered structural when it has more than 20 MPa of fck , which leads to the conclusion that all compositions can be used as structural concrete [ 55 ]. Additionally, in more aggressive environments, such as urban pollution, typical of big cities, the concrete must present at least 25 MPa of fck [ 56 ], which in the present case was also verified for all studied compositions. Thus, it appears that, even with a drop in compressive strength, in the case of 20% CCW, the concrete had pozzolanic characteristics because even with the replacement of OPC it was possible to obtain satisfactory mechanical parameters for real applications of the material in structural projects.…”
Section: Resultssupporting
confidence: 76%
“…According to Brazilian standards, concrete is considered structural when it has more than 20 MPa of fck , which leads to the conclusion that all compositions can be used as structural concrete [ 55 ]. Additionally, in more aggressive environments, such as urban pollution, typical of big cities, the concrete must present at least 25 MPa of fck [ 56 ], which in the present case was also verified for all studied compositions. Thus, it appears that, even with a drop in compressive strength, in the case of 20% CCW, the concrete had pozzolanic characteristics because even with the replacement of OPC it was possible to obtain satisfactory mechanical parameters for real applications of the material in structural projects.…”
Section: Resultssupporting
confidence: 76%