UTILIZATION OF SAW DUST FOR DEVELOPMENT OF LIGHT WEIGHT CONCRETE

Abstract

In the current situation, a variety of constructions, from standard residential buildings to skyscraper structures, are under construction. Concrete is always used extensively in the building of all the structures. Cement, fine aggregate (River sand), coarse aggregate, water, and admixtures of various kinds, depending on the circumstances, are the usual ingredients of concrete. Good sand is currently taken out of riverbeds and moved over great distances. Sand mining has grown to be a significant problem that is endangering the ecosystem and increasing the risk of flooding and water flow disruption. However, the resources are also running out quite quickly and cheaply. The purpose of this experimental investigation is to substitute sawdust for fine aggregate in a concrete mixture. It is also used to examine how sawdust concrete affects workability, aggregate adhesion, and other factors. The weight
differential between the initial concrete and the sawdust concrete block is also measured after the concrete block has been prepared. The percentages of sawdust added to M20 concrete are as follows: 0%, 2.5%, 5.0%, 7.5%, 10%, and 12.5%. Following that, different tests are carried out on both freshly laid concrete (slump cone test) and hardened concrete (compressive strength).