Geotechnical Application of Rice Husk Ash and Lime Admixtures of Black Cotton Soil having high Expansive Nature

International Journal of Civil Engineering

© 2016 by SSRG - IJCE Journal

Volume 3 Issue 5

Year of Publication : 2016

Authors : Surya Manikantha.A, Satyanarayana.P.V.V, Vamsi Nagaraju.T, Abdul moin

10.14445/23488352/IJCE-V3I5P134

How to Cite?

Surya Manikantha.A, Satyanarayana.P.V.V, Vamsi Nagaraju.T, Abdul moin, "Geotechnical Application of Rice Husk Ash and Lime Admixtures of Black Cotton Soil having high Expansive Nature," SSRG International Journal of Civil Engineering, vol. 3,  no. 5, pp. 18-23, 2016. Crossref, https://doi.org/10.14445/23488352/IJCE-V3I5P134

Abstract:

Black cotton soils are expansive soils which exhibit high swelling and shrinking when exposed to changes in moisture content. This cyclic swelling and shrinking of soils subjected to distress under moisture variations and these cause severe failures. Stabilization of expansive soils with various addictives attained lot of success. Rice Husk Ash is an agricultural industrial waste which found abundantly in delta regions. In this connection different percentages of cementitious material like lime is added to soil and also combination of RHAlime added to soil and tests like plasticity, compaction, swell and CBR were performed. From the test results it is identified that addition of lime decreases plasticity and improves strength characteristics. Addition of RHA and lime makes the expansive soil to non-plastic, non-swelling and attain higher CBR of greater than 50% for 10%lime +20%RHA and 10%lime +30%RHA.

Keywords:

CBR, Expansive soil, Lime, Rice husk ash.

References:

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