LABORATORY INVESTIGATION OF EXPANSIVE SOIL STABILIZED WITH NATURAL INORGANIC STABILIZER

Haricharan T S, Vinay Kumar K S, Durga Prashanth L, M.R.Archana, A.U.Ravishankar

Abstract: Soil stabilization has proven to be one of the oldest techniques to improve the soil properties. Literature review conducted revealed that uses of natural inorganic stabilizers are found to be one of the best options for soil stabilization. In this regard an attempt has been made to evaluate the influence of RBI-81 stabilizer on properties of black cotton soil through laboratory investigations. Black cotton soil with varying percentages of RBI-81 viz., 0, 0.5, 1, 1.5, 2, and 2.5 percent were studied for moisture density relationships and strength behaviour of soils. Also the effect of curing period was evaluated as literature review clearly emphasized the strength gain of soils stabilized with RBI-81 over a period of time. The results obtained shows that the unconfined compressive strength of specimens treated with RBI-81 increased approximately by 250% for a curing period of 28 days as compared to virgin soil. Further the CBR value improved approximately by 400%. The studies indicated an increasing trend for soil strength behaviour with increasing percentage of RBI-81 suggesting its potential applications in soil stabilization

Keywords: RBI- 81, UCS, CBR

DOI: https://doi.org/10.15623/ijret.2013.0213035