Paper Key : IRJ************465
Author: Tamnna Guleria ,Neeraj Sharma
Date Published: 10 Oct 2023
Abstract
The soil exists in natural state have some technical weakness in it. It tends to swell when it comes in contact with water and also get shrunk after drying. This is quite dangerous for the structures built upon such soil, as the structures get collapsed due to differential settlement. The differential settlement occurs due to variation of CBR value of the beneath soil, low UCS value and high compressibility. To evaluate the quality of soil various test have been performed such as consistency limits test, particle size distribution and compaction test (Standard Proctor Test) which exposed the condition of soil before and after stabilization. To avoid risk of life and failures in the structures it is better to enhance the properties of weak soil by stabilizing and reinforcement techniques. Stabilization and reinforcement techniques help to enhance the quality of soil by mixing cementitous, siliceous and reinforcing material respectively in the optimum quantity. Soil is treated to make it stabilize by using various admixtures like RBI grade 81 and industrial wastes as Wood ash and Silica gel. RBI grade 81 has some cementitious properties with some fibrous content, whereas wood ash and silica gel have siliceous content with different particle size. The pozzolanic reaction fill the gap between particles and bind it together to take the strength to higher level which tends to reduce the compressibility of soil. The maximum dry density and Optimum moisture content significantly increase after mixing of RBI grade 81, Silica Gel and Wood ash upto some proportion after that it start decreasing. The optimum values obtained of the mixes after evaluating by various geotechnical tests are Wood ash 10%, RBI Grade 81 is 6% and Silica gel is 5%. The results show that with the addition of RBI grade 81, wood ash and Silica gel enhances the properties of clayey soil at an extent level when it is mixed at the optimum limit.
DOI LINK : 10.56726/IRJMETS45181 https://www.doi.org/10.56726/IRJMETS45181