A STUDY ON BLACK COTTON SOIL STABILIZED WITH COCONUT COIR AND FLY ASH- COMPARISION
Putta Sri Sowmya Rupa
Civil engineering department& V.S.M college of Engineering , IN
Keywords: Coconut Coir, Fly ash, Subsoil, California Bearing Ratio, Unconfined Compression Test, soil stabilization.
Abstract
India is a country which is mostly covered with black cotton soil and most of the regions in Andhra Pradesh are rich in black cotton soil resources, but black cotton soils are highly expansive and are not suitable for the construction of multi storied buildings in order to construct these heavier structures we need to stabilize the soil using admixtures, the admixtures which are in use at present are costlier, that is why to reduce the cost of stabilization for foundation soil, coconut coir is used, which is locally available raw material and a comparison in the strength properties are carried out by using coconut coir and fly ash. In the present study an attempt is made to find out the improvement of strength in black cotton soil mixed with varying percentage of coconut coir and fly ash, by conducting a series of Unconfined compression strength (U.C.S) and California bearing ratio (C.B.R) tests, Differential free swell. The tests are conducting by adding varying percentages of 4%,5%,8%,10% respectively for coconut coir and fly asfh.
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