Tijolos de adobe de solo-cimento com adição de resíduo de serragem de madeira e cinza da casca de arroz

Abstract

Degradation and the environmental damages caused by the civil construction industry (CCI) are observed in all its productive process. In this context, seeking alternatives that reduce the hasty consumption of natural resources, the environmental damages, the elevated energy consumption for the materials fabrication and the final products costs, the development of both sustainable building techniques and materials has started. With this in mind, it’s important to notice the reuse of wastes generated by the construction industry itself, agrobusiness and also logging companies besides other departments. Therefore, this research aimed to verify the possibility of incorporating wood sawdust, rice husk gray into cement soil’s mold for the confection of adobe bricks, as a way to enrich the importance of environmental preservation and to present alternatives for the reduce of natural resources consumption. To this end has been proceeded, specifically, with the analyses of simple compressive strength, water absorption capacity and retraction for the 7-day cure cure period. Blocks that were made with individual addition of wastes fulfilled the criteria of simple compression and retraction. However, blocks that were made with the concurrent addition of wastes even though they’ve fulfilled the retraction criteria, they haven’t showed satisfying values of compression strength and water absorption.