Management of municipal solid waste ash in soil stabilization

Abstract

This report presents the analysis of municipal waste ash in soil stabilization for different engineering properties. As solid waste disposal being a major environmental problem, because of unviability of lands for disposal. Due to fast growth in construction industry, land is not available as per construction requirements. For dealing with these problems, solid waste can be incinerating to reduce its volume by 80%, and further can be used as soil stabilization material. It enhances the soil properties and also solves the problem of solid waste disposal in city. This work deals with estimation of engineering properties of soil i.e. shear test, maximum dry density vs. optimum moisture content and permeability. Experimental work shows that use of 10% MSW ash by weight of soil can improve the properties at larger extends. The foundation of a building or road is an essential part for effective transmission of load to the subsoil present beneath it. The quality of soil has large impact on type of structure and its design. The expansive soils are examples of weak soils, which encountered in foundation engineering for bridges, highways, buildings, embankments etc. Expansive soil undergoes volume changes when they come in contact with water. They show alternate swelling and shrinkage properties. It expands during rainy season and shrinks during summer season. Solid waste term includes all those solid and semi-solid materials that are discarded by the community.