Uso da fibra do resíduo de coco verde na produção de tijolos ecológicos

Abstract

Population growth brings one of the greatest concerns of modern society, such as a large volume of waste production, including green coconut waste. Sustainable development with the use of natural resources and productive processes without pollutants is becoming increasingly consolidated. In this context, several studies are carried out looking for the reuse of green coconut fruits discarded by the different productive and consumption chains. One of the alternatives to mitigate this problem is the incorporation of ceramic mass residues for the manufacture of ecological bricks used to execute masonry without a structural function in civil construction works. The soil-cement also known as ecological brick is a product resistant to curing of a compact homogeneous mixture of soil, cement, water, in proportions that guarantee mechanical resistance and wear. The manufacture of ecological bricks brings great advantages in relation to sustainability: economy, environment and social. In this perspective, this work analyzes the behavior of ecological bricks made with green coconut fiber in order to meet the requirements of ABNT NBR 8491: 2012. The levels of fiber addition to the mass used in this research were 0%, 2%, 3% and 4%, The bricks are hollow and made in size 240x120x70 mm. Technological tests of water absorption and resistance to axial compression were carried out, with a curing time of 7 days. Characterization tests on raw materials were also carried out, such as: granulometric analysis, consistency limits, HRB classification, determination of organic impurities, as well as determination of real specific mass and fiber content of fibers. The tests of resistance to compression and water absorption indicate that the best results were bricks with a 4% fiber content in the soil cement mixture, having as an environmentally friendly brick suitable for the masonry construction system without structural function.