O estudo da viabilidade de inserção de fibra de celulose para produção de blocos de concreto

Abstract

The cellulose fiber, a residue from the paper and cellulose industry, is widely studied in our current scenario. This is explained by the fact that this industry is one of the largest in Brazil, producing approximately 10 million tons of paper and 21 million tons of cellulose per year. Since about 48 tons of waste are generated for every 100 tons of cellulose produced, its disposal is of paramount importance to the environment. Therefore, aiming to conceive another use for cellulose fiber and aiming for sustainable development, this work aimed to study the feasibility of including this waste as a substitute for sand in the composition of concrete for civil construction to produce masonry blocks. For this purpose, test specimens containing 10%, 12.5%, 15%, 17.5%, and 20% were manufactured, conducting axial compression and water absorption tests on them to verify the possibility of substitution. The test containing 20% cellulose fiber proved to be viable, but those with 12.5% and 15% obtained different results, making the repetition of the tests the best option for greater certainty.