Abstract: Expansive soils are highly problematic because of the susceptibility of these soils to undergo large changes in volume due to variation in the moisture content. Generally black cotton soil falls under this case, which has poor bearing capacity and shearing strength. Special attention is required on stabilization process to make it more suitable for all construction purposes. This experimental study deals on the stabilization of black cotton soil using coir fibre as this natural fiber is a cost effective and eco-friendly material which is used to improve properties of black cotton soil. The basic properties of virgin soil like specific gravity, grain size distribution, Atterberg’s limits, compaction characteristics and unconfined compressive strength tests were conducted. Further the black cotton soil is mixed with varying percentage of coir fibre by dry weight of soil such as 0.25 %, 0.5 %, 0.75 % and 0.1 %. The change in properties such as liquid limit, plastic limit and shrinkage limit of stabilized black cotton soil is studied. Comparisons are drawn for change in maximum dry density, optimum dry density and unconfined compression test values for both stabilized soil and untreated soil.
Keywords: Black Cotton Soil, Coir Fibre, Atterberg’s limits and Unconfined Compressive Strength.
Title: Experimental Investigation on Expansive Soil Stabilized Using Coir Fibre
Author: Venkatesh A., Sadiya Anwer, Suprith M.R., Sachin M.S., Goutham D.R.
International Journal of Civil and Structural Engineering Research
ISSN 2348-7607 (Online)
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