In the present scenario, several buildings are being constructed ranging from ordinary residential buildings to sky-scrap structures. Invariably in all the structures, concrete plays a vital role in construction. Generally concrete is a mixture of cement, fine aggregate (River sand), coarse aggregate, water and type of admixtures used depends upon the situations. Now-a day’s good sand is extracted and transported from riverbed being in a long distance. The extraction of sand has become a serious issue, posing environmental degradation, thereby causing serious threats of flood or diversion of water flow. Nevertheless, the resources are also exhausting very rapidly and economical. This experimental study is aimed to create a concrete mixture consisting of sawdust which replaces the fine aggregate. It is also used to analyze the effect of sawdust concrete in terms of workability, adhesion of aggregates and etc. After preparing the concrete block, the difference in weight between the original concrete and the sawdust concrete block is also tested. The sawdust is mixed in definite proportions with the M20 concrete those percentages are 0%, 2.5%, 5.0%, 7.5%, 10% and 12.5%. And then various tests are conducted for fresh concrete (slump cone test) as well as hardened concrete (compressive strength).

Sawdust, M20 concrete, compressive strength, slump cone test, compaction factor test.