Experimental Investigation on Stabilizing Expansive Shedi Soil Using Rice Husk Ash and Lime Sludge

International Journal of Research and Scientific Innovation (IJRSI) | Volume V, Issue V, May 2018 | ISSN 2321–2705

Experimental Investigation on Stabilizing Expansive Shedi Soil Using Rice Husk Ash and Lime Sludge

 Karthik ¹, Nadeem1, Raghvendra¹, Gavisiddesh Majjagi²

 BE Final Year Student¹, Assistant Professor ²
Department of Civil Engineering, SDM Engineering College, Dharwad, Karnataka, India

Abstract—This work relates with usage of environmental hazardous waste of rice husk ash and lime sludge with expansive soil. The results showed appreciable increase in their strength value with the 7 day period. The rice husk ash is a waste material obtained around Hyderabad Karnataka region after burning of rice husk,. Lime sludge is another waste material obtained from paper manufacturing industry. These materials have should be effectively used in engineering applications to avoid major environmental pollution issues. Hence usage of these material is recommended which are economical too.

I. INTRODUCTION

Expansive soil is a difficult soil for construction because of its cyclic swell – shrink behaviour and low strength. These types of soils expand significantly coming in contact with water and shrink when water evaporates out, resulting severe damages to lightly loaded structures constructed on them. Stabilization using industrial wastes is one of the efficient, popular and cost effective techniques, out of several techniques of construction on expansive soils. Soil stabilization is a process by which certain materials are added to soil to improve its engineering properties. These materials may be classified as pozzolanic (fly ash, rice husk ash etc.), binder (lime, cement, cement kiln dust, lime sludge etc.) and inert (quarry dust, sand, ceramic dust etc.) are added to soil individually or combined.

Rice husk ash (RHA) is the ash produced by burning of rice husk. Silica is the main constituent of rice husk ash. It has been found to be pozzolanic material due to its high amorphous silica content Another waste produced from paper manufacturing industry is lime sludge the main constituent of which is lime.RHA as a pozzolanic material and lime sludge as a binder can be utilized to stabilize expansive soil.

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