Hassan S. Abdul-Moghni
Civil Engineering Dept., Faculty of Engineering, Sana'a University, Sana’a, Yemen
Superplasticizers are considered to be a new class of generic material. They have an efficient
capability of increasing the workability without changing the mixture proportions, or reducing the
required water content at equal slump.
The present study reports a results of a laboratory experimental works for evaluation of the given
admixture performance on some properties of plain and microsilica concrete. In addition, the study
shows the effect of both superplasticizer and microsilica to produce a high strength concrete of
moderate cement content.
The findings indicated that the addition of superplasticizers gives appreciable increase in concrete
strength and durability as well as the ability of production a high strength concrete due to the presence
of the mentioned agents combination.