Soil Stabilization by Using Lime Rice Husk

Abstract

Soil is important material for road construction in sub grade and sub base region. The property of soil changes when get contact with water and if the soil strength is low, high swelling tendency or low shear strength then soil stabilization is required at subgrade. In market there are various stabilizers available like lime, cement, flyash, granulated slag etc. Foundation of any pavement is subgrade and it’s stability gives long life to the pavement. In this paper we will use rice husk, lime as stabilizer. The important property which we want to improve in soil is volume stability, strength, compressibility, stability, durability. This study is to improve the locally available weak soil with soil stabilizers. The test performs such as Modified proctor test and CBR test is to check whether adding admixture improves the soil. Higher the CBR value helps to reduce the crust thickness and also helps in increasing the bearing capacity of the soil. Modified proctor test are conducted to determine maximum dry density of soil sample. Results after testing several soil samples gives reduction in overall depth of soil subgrade.