Abstract

Abstract: To improvethe workability, strength, ability to control during work times and durabilityof cement concrete, ‘engineers, chemists, manufacturers and others have helpedthe concrete by adding some additional substances known as admixtures. Thereare different kinds of admixtures are available; and each admixture has its ownspecialty. This paper has been made an attempt to study the effect ofplasticizer doses of 0.25, 0.30 and 0.35 percentage (by weight of cement) onperformance of M15 concrete grade. The tests considered for study are slumptest and compressive strength test.  Theresults show that for the constant water cement ratio, increase of plasticizerdose in Concrete leads to gain of good workability. Moreover, there is alsoslightly increase in compressive strength than that of normal concrete mix.

Keywords: compressive strength test, plasticizer,workability, conventional concrete.