A influência da substituição parcial do cimento Portland por cinza de casca de arroz no processo de produção de argamassa: uma revisão literária

Abstract

Civil construction is a sector that has been growing over the years, being one of the main responsible for depletion and increased impacts on the environment. the industries cement companies are responsible for contributing to the emission of 5% CO2 worldwide, in addition to the other pollutants that are released during the cement manufacturing process, collaborating directly with the increase in the greenhouse effect. Over the years, several researchers have sought to study ways to reduce these impacts, one of them is through the replacement of Portland cement by alternative pozzolanic materials in order to reduce the consumption of cement and increase the mechanical properties of the product, being able to apply the agro-industrial residues that are discarded incorrectly at different times. So, the The present work seeks to bring together several studies, being in the end a case study which seeks to present the reduction of cement consumption and the economic viability of using rice husk ash (CCA). For this purpose, the CCA obtained in a Thermal Power Plant was used. Electricity located in the municipality of São Sepé - RS, which generates electricity through burning the rice husk, to which a replacement of 15% of the cement was applied for the production of mortar in residential buildings, and this percentage adopted showed better results in the compressive strength test.