Strength of the Partial Replacement of Cement by using Rice Husk Ash

Abstract

In these papers present we have replaced with cement by rice husk ash concrete which contains silica. Rice being the staple food of the Indian Subcontinent, huge quantities of paddy is grown, milled to yield rice and byproduct, rice husk, is going as waste material in the absence suitable recycling technology till recently. Rice husk when burnt yields ash with 80 to 90 percent of silica depending upon the temperature of burning. Extensive studies conducted have revealed that the concrete made of cements partially replaced by rice husk ash yielded good concrete with high early strengths. The replacement is 30 percent in 1:1.6:2.8 mix ratio with water cement Ratio 0.5. The study present with the strength properties of compressive strength for cube and cylinder split tensile strength, modulus of rupture. Rice husk ash considerable increased strength for partial replacement and disposal of Partial replacement of cement by rice husk ash considerable increase strength and disposal of rice husk is also considerably reduced.