SOME ASPECTS OF PHYSICAL AND MECHANICAL PROPERTIES OF SAWDUST CONCRETE

Abstract

This paper presents experimental results on some physical and mechanical properties of
concrete containing sawdust. Concrete specimens having various cement to sawdust ratios of 1:1, 1:2 and 1:3
by volume were made and tested for workability, density, water absorption, strength and modulus of elasticity
at different curing periods of 7, 14 and 28 days. It has been found that with the increase in the amount of
sawdust, the workability and density of concrete decreased; the water absorption capacity of concrete, however,
increased with the increase in volume. Although the strength of sawdust concrete increased with curing period,
the strength and the corresponding modulus of elasticity decreased with the increasing amount of sawdust in
the mix. The results obtained and the observation made in the short-term investigation suggests that sawdust
concrete can suitably be used as a building material in construction.