Strength and Properties of Subgrade Cohesive Soil Treated with Stone Slurry and Lime: A Review

Abstract

The foundation is indeed the most essential part of any built up structure, be it a superstructure or a substructure. The stability of soil is the requirement to stabilize the upper surface. Clay being the most unwanted subgrade material cannot always be avoided completely because it is not always economically feasible to replace the part of foundation with a more stable granular soil. Hence, the role of stabilization comes into play. This study aims to investigate the potential utilization of stone slurry waste and stabilization of cohesive soil. The stone slurry waste is usually disposed indiscriminately in open area and sewage network causing health and environmental problems. Every year death of humans and animals are reported due to drowning in open slurry waste site. This water carries large amounts of stone powder, which leads to complex nature of environmental problem so these waste material needs to be utilized meaningfully in economic way. The stone slurry waste taken from the stone cutting plant was dried, grind to fine particle and then mixed with specific amount of clayey soil and Lime. The stone cutting industry consume large amounts of fresh water and produces even larger amount of viscous liquid waste known as stone slurry waste. Calcium Carbonate (CaCO3) is the main constituent of slurry waste in addition to other minerals from parent rock. Stone slurry waste and Lime were mixed in different percentage with parent soil and various geotechnical characteristics were investigated through standard proctor test (SPT) and unconfined compression test (UCS)