Análise do desempenho mecânico de uma mistura de solo argiloso e resíduo de vidro

Abstract

Soil is a material of complex behavior and significant spatial variability. Therefore, in its natural state it does not present the necessary conditions for the laying of surface foundations, which require relatively high support capacity at low depths. There are some methods to improve the mechanical properties of the soil, some of them rely on the addition of materials to the soil, and the mixtures can react chemically or only physically. Nowadays, with the aim of diminishing environmental impacts, some studies have been carried out and they have been incorporating industrial residues to the soils, as fly ash, construction waste and glass residue. Glass residue is a waste destined to landfills and has not been applied to the market yet, however, some studies that have obtained good results when using it (mixed alone or with other components) in mortars and even in soils have been carried out. Therefore, in this study, a glass residue mixture was tested in a 15% clay soil to analyze its mechanical performance through unconfined compression tests and California bearing ratio test by making comparisons between the mixture and the soil in its natural state. The characterization and mechanical analysis of the mixture revealed some changes in the behavior of the soil when mixed with the glass. The tests indicated a reduction of the resistance and increase in the deformability of the material for the tested content, providing knowledge and parameters for future experiments.