Open AccessPozolanicidade do resíduo cerâmico
Author(s) -
Janaína Anne Mota Melo,
João Batista Duarte,
Leonardo Do Nascimento Dias,
Sóstenes Rodrigues do Rêgo,
Vamberto Monteiro da Silva,
Wilson Acchar
Publication year - 2020
Publication title -
principia/revista principia
Language(s) - English
Resource type - Journals
eISSN - 2447-9187
pISSN - 1517-0306
DOI - 10.18265/1517-03062015v1n48p139-145
Subject(s) - mortar , pozzolan , ceramic , materials science , coating , masonry , waste management , metallurgy , cement , composite material , portland cement , engineering , civil engineering
The construction industry is still responsible for generating a significant volume of waste from mortars, concrete and ceramic materials. We underline in this scenario the residue of ceramic bricks that can be used in the production of new materials, such as laying and coating mortars, concrete and ecological bricks. This usage allows the reduction of the percentage of binders in these compositions and, consequently, the reduction of costs, less consumption of non-renewable natural resources and the reduction of carbon dioxide emissions from clinker manufacture. In order to do so, it is necessary to make the scientific verification of the process of pozzolanic activity through the following experiments: X-ray Diffraction (XRD) mineralogical analysis, sieving and sedimentation particle size analysis, X-ray Fluorescence (FRX) chemical analysis and the verification of Ca(OH)2 consumption by the modified Chapelle experiment. The results showed that the ceramic residue from non-structural masonry has high levels of silica (SiO2 ), aluminum oxide (Al2 O3 ) and iron oxide (Fe2 O3 ). Secondary pozzolanic additive.