Open AccessSÍNTESE, CARACTERIZAÇÃO E AVALIAÇÃO DE BIOCARVÃO PRODUZIDO A PARTIR DE RESÍDUO RUMINAL BOVINO DE FRIGORÍFICO PARA SUBSTITUIÇÃO PARCIAL DO CIMENTO EM CONCRETO
Author(s) -
Alexandre Teixeira de Souza,
Maria Luiza Garcia Lopes Molina,
Thaise Monique Iurrino
Publication year - 2021
Publication title -
colloquium exactarum
Language(s) - English
Resource type - Journals
ISSN - 2178-8332
DOI - 10.5747/ce.2021.v13.n1.e348
Subject(s) - biochar , cement , raw material , pyrolysis , compressive strength , waste management , environmental science , charcoal , pulp and paper industry , biomass (ecology) , chemistry , materials science , agronomy , engineering , composite material , organic chemistry , biology
Nowadays, the cement industry faces several challenges, such as: fossil fuels reservation exhaustion, raw material scarcity, growing demand for building materials, as well as crescent environmental concerns, like air pollution and climate changes. The cement production is directly related to CO₂ emission, one of the main greenhouse gases. Therefore, this search’s objective is to demonstrate the biochar as a potential additive to replace cement in concrete, improving hydration due to its internal healing andnucleation effects. The biochar was prepared by bovine ruminal residue pyrolysis for 1 and 2% replacement of concrete cement. Immediate analyzes were also carried out to get information about biochar’s composition. It was observed in the compressive strength tests, a considerable increase in concrete strength with biochar’s partial replacement. During pyrolysis, the carbon from biomass raw material is sequestered in the chemical structure of the biochar produced that would be released into the atmosphere through decomposition or degradation of biomass. Using material produced by waste to partially substitute cement is an economic and sustainable strategy to achieve green concrete mixtures.