Estudo da resistência à compressão e módulo de elasticidade em concretos com adição de cinza e fibra de bagaço de cana-de-açúcar.

Abstract

The use of sugar-alcohol waste to concrete provides changes in its properties, such as an increase in compressive strength. Therefore, this work aims to evaluate the compressive strength and modulus of elasticity in concrete with the addition of fiber and sugarcane bagasse ash simultaneously and individually. In order to reach the objective proposed in this work, the following steps were carried out: bibliographic survey to collect information about the addition of fiber and ash to concrete; characterization and preparation of materials with reference to current regulations and bibliographic references and, finally, the performance of compression tests and modulus of elasticity in concrete with the additions of 1% fiber and 3.5% sugarcane bagasse ash. It was found that the additions of these two residues to the concrete provided an increase in its strength in comparison to the reference concrete (without addition). The simultaneous use of these residues promoted an increase in compressive strength of 43.96%, obtaining the best result in terms of compressive strength when compared to the other traits, both with individual additions of fiber and sugarcane bagasse ash in the reference trace. Regarding the modulus of elasticity, no significant change was found in concrete with the simultaneous or individual addition of these residues. Therefore, given the satisfactory results collected in this research, it can be said that the concrete developed is technically viable and sustainable material.