Avaliação do potencial dos solos de Delmiro Gouveia para fabricação de tijolos de solo-cimento

Abstract

A need for sustainable solutions in the construction industry is crucial, given the finite resources available for the sector. This study focuses on the analysis of soils in Delmiro Gouveia, Alagoas, and their use in the production of soil-cement bricks, commonly known as ecological bricks. Soil-cement bricks are made by mixing soil, cement, and water. The suitable soil for this mixture must comply with NBR 10833 (ABNT, 2013) - Manufacturing of soil-cement bricks and blocks using manual or hydraulic press - Procedure, taking into account field and laboratory studies such as particle size analysis, liquid limit, and plasticity. Initially, the soils were classified according to the Brazilian Soil Classification System 2018 at the second categorical level, mapping areas of interest and collection points using QGis software. After defining the areas of interest and collecting soil samples in the field, the collected soils were classified according to the Unified Soil Classification System as well-graded sand, resulting in a final classification of sandy silt (SM) and according to the TRB Classification System as granular material, classification A-2-4, which may represent soils with gravel, sandy silt, or clay composition. In terms of texture, the collection points indicate that, after pre-screening with a 4.8 mm sieve to remove gravel, the soil is a suitable choice for soil-cement brick production. In conclusion, the use of these bricks for affordable housing can promote sustainable and economic development in the municipality, considering the possibility of local production and the construction method as an advantageous tool for social transformation.