Sustainable Utilization of Lightweight Waste Materials as Structural fill for Geotechnical Applications

Abstract

In spite of the development foreseen by our economy over this century, abundant quantity of waste materials is being generated in various sectors such as transportation, power generation and industries. Meanwhile, constructional activities across the globe demand virgin natural materials. This paper emphasis a review on the use of some of the waste materials like Fly ash (FA), Bottom ash (BA), Tire derived Materials (TDM) in lieu of natural geomaterials as lightweight fills for retaining walls and embankments. A brief review of the engineering behavior of these waste materials which makes them a competent fill material will be presented here. Further full scale and model studies of embankments and retaining walls utilizing these wastes for fill application is also emphasized. The results of these studies have shown that these waste materials can act as competent fill material for geotechnical applications.