Avaliação de solo-cimento reforçado com fibras de coco de babaçu para produção de tijolo modular ecológico

Abstract

The sustainable development with the use of renewable and abundant natural resources, and production processes without pollutants emission, each day becomes a requirement for the industrial sector. In this approach, this study aims to evaluate the characteristics of soil-cement bricks reinforced with babassu coconut fibers. The soil-cement is a hardened product resulting from the curing of homogeneous mixture of compacted soil, cement, water and possibly additives, proportions required to ensure good mechanical strength and durability. The raw materials are abundant and affordable in the southeast of Para. Different samples of soil and grading the tests, consistency limits, x-ray diffraction and drying shrinkage, according to brazilian standards. The babassu coconut fibers were, chemically treated with a NaOH 0,1N 2 solution for 2 two hours. The fibers chemically treated and not treated has been characterized as the specific mass, moisture content, water absorption, morphology and tensile strength test for the not treated fibers. The study features two 7/1 and 10/1 with levels of 0%, 0,30% and 0,60% of babassu coconut fibers and evaluated according to the ages of 7, 14 and 28 days through the testing of compressive strength water absorption and the durability to seven days curing. The results showed that adding fiber 0,30% and 0,60% for traces 7/1 and 10/1 improved the compressive strength. The compressive strength and water absorption tests indicated that the best results were the fiber content of 0,30% 7/1 and 0,60 10/1. In this sense, the best composition, trace and cost was 10/1 with 0,60% fiber.