A STUDY ON THE STRENGTH OF CONCRETE BY PARTIAL CEMENT REPLACEMENT WITH SAWDUST ASH

Abstract

This study is based on the use of sawdust ash as a partial replacement material for cement in concrete for property modifications. In the concrete mixes, cement was replaced by sawdust ash at 5%, 10%, and 15% by weight, and the effects on replacement were observed. The use of sawdust ash allows the reuse of sawdust as a waste product in the construction process. Due to the lightweight of the sawdust ash in comparison to cement, the concrete ultimately becomes lighter in weight. The grade of concrete designed here was M25 and concrete cubes measuring 150mm×150mm×150mm, beams of sizes 100mm×100mm×500mm and cylinder 150 mm in diameter and 300 mm in height were cast and their compressive, flexural strength, and split tensile strength are evaluated respectively after 7 and 28 days.