Análise do comportamento de tijolos solo-cimento com adição de resíduo de pó de mármore-granito e cinza de bagaço de cana-de-açúcar

Abstract

Targeting a process of sustainability, this study proposed a performance analysis of soil / cement bricks by adding to the mixture waste marble dust / granite (RPMG) and ash residue from sugarcane bagasse (CBCA) with the purpose of use them in construction, and thus provide a cleaner and more economical production, because some industries still discard these wastes with no treatment to nature. So, as theoretical references, two research developed were considered, it is the work of Santos Neto (2015), which used adding RCMG and got the best result to the average compressive strength of 2.85 MPa, with the dash : 9.1% of cement, 77.27% of soil and 13.63% of RPMG; and the research of Marques, Mendonça; Tenorio (2012), who used of CBCA and had the best result of the average compression resistance of 6.01 MPa with the trace 10% cement, 86% ground and 4% CBCA. Although the compressive strength of bricks Marques (2012) to achieved higher performance than Santos Neto, this work seeks only the indicated resistance to the sealing brickwork, whose NBR 8491 (ABNT 2013b) requires only 2.0 MPa, so was used the most economical trace between them, that is the best result of the trace obtained by Santos Neto (2015), using only 9.1% of Portland cement. Therefore, the current research, taking advantage of the two results, was developed by adding to the soil cement bricks two CBCA and RPMG residues, respectively, obtaining the following results: water absorption tests defined by NBR 8492 (ABNT 2013c) were approved, however, resistance tests to simple compression, defined by NBR 8491 (ABNT 1984), did not achieve the desired results.