Effect of Rice Husk Ash on Strength Characteristics ofBlack Cotton Soil

Salman Pasha Mohammad*, Suresh Kommu**, Ravi Kumar Yamala***
* PG Scholar, Department of Civil Engineering, VNR Vignana Jyothi Institute of Engineering and Technology, Telangana, India.
** Assistant Professor, Department of Civil Engineering, VNR Vignana Jyothi Institute of Engineering and Technology, Telangana, India.
*** Assistant Professor, Institute of Aeronautical Engineering, Telangana, India.
Periodicity:March - May'2017
DOI : https://doi.org/10.26634/jste.6.1.13478

Abstract

Due to increase in the demand of soil stabilization with the waste by-products from the industry as well as from the municipal waste, the stabilization of soil has become more economical for the purpose of construction. Therefore, in this paper, an attempt has been made to study the effect of Rice Husk Ash (RHA) on strength characteristics of black cotton soil. The treated samples are prepared by mixing various proportions of rice husk ash (i.e. 2%, 5%, 7.5%, 10%, 15%, and 20%). The basic tests like specific gravity (G), Hydrometer test, Atterberg's limit, and compaction test have been conducted for classification of the soil and to study the behaviour of soil with the addition of RHA. The results showed that the Optimum moisture content increases with the addition of RHA and the drop in the Liquid limit, plastic limit, plasticity Index, and maximum dry density have been observed with the increase in the percentages of RHA. The strength of the 2 natural soil have been obtained as 0.62 Kg/cm and with the increase in RHA as an additive, the maximum strength have 2 2 been obtained at 15% RHA of 1.26 kg/cm , but further increase shows a decreasing trend of strength with 1.18 kg/cm for 20% RHA.

Keywords

Soil Stabilization, RHA, Strength, Black Cotton Soil.

How to Cite this Article?

Mohammad, S.P., Kommu, S., and Yamala, R.K. (2017). Effect of Rice Husk Ash on Strength Characteristics of Black Cotton Soil. i-manager’s Journal on Structural Engineering. 6(1), 33-38. https://doi.org/10.26634/jste.6.1.13478

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