Análise de misturas de solo com lodo de estação de tratamento de água para fins de material de construção

Abstract

The use of sludge from the Capim Branco Water Collection and Treatment System in Uberlândia is investigated for the geotechnical use of mixtures consisting of soil, lime and sludge in civil construction works. In this way, sludge from water treatment plants can be used as raw material and mitigate the impacts linked to this waste on the environment. Based on physical and mechanical characterization tests of the mixtures, the feasibility of using sludge fractions for geotechnical purposes, such as in road construction, was determined. The results obtained demonstrated that mixtures with the addition of 2% lime and 10% sludge presented mechanical characteristics similar to those of soil without the addition of other components, in addition to presenting greater resistance when compared to mixtures with 25% and 40% sludge that were also evaluated in this article.