STUDO SOBRE A ADIÇÃO DO BAGAÇO DE CANA-DE-AÇÚCAR NA PRODUÇÃO DE PLACAS DE GESSO PARA CONSTRUÇÃO CIVIL

Abstract

The production and consumption of sugarcane by the sugar and alcohol sector grows sharply every day, in the 2017/2018 harvest, Paraíba even grinded 5.9 thousand tons of sugarcane, generating a large number of wastes. Each waste has its final destination, they are reused in the productive process, but new ways of reuse are tried and presented, as a way to better use of the materials and the search for the reduction of the environmental impacts caused by them. The objective of this course completion work is to use the largest residue of the sugar and alcohol sector, sugar cane bagasse, in the manufacture of lining plates for use in civil construction. Plates with dimensions of 200 x 200 mm were made with the mixture of gypsum and bagasse with particle size less than 290 mm. In the samples, the mechanical and physical resistance were evaluated, compared to the commercial plasterboard. The mechanical strength of the bagasse plates was similar to the commercial plaster, reaching 1.6 MPa of flexural load. In the physical resistance the samples with fiber absorbed more water, however, they still remained with lower weight, not compromising the applicability of the plates in the linings of the civil construction. The analysis of the results showed the viability of the bagasse and gypsum junction, offering resistance and reliability in the production of the plaques