The Effect Of Admixtures On Properties Of Concrete

Abstract

This project investigates the effects of admixtures on the properties of concrete; which may be affected by water cement ratios and admixtures quantity on concrete mix. Because the use of admixtures for many purposes in concrete and the importance of concrete as a construction material this project will be made.

An experimental approach took place for studying the effect of the varying water cement ratios and the effect of the admixtures. This was done by making a number of concrete mixes each with either a different water cement ratio or amount of admixture added to the mix. The properties of these concrete mixes assessed by measuring both the fresh and hardened state properties of the concrete mix. There are some of literature review which talk about admixtures or concrete in general or specified in admixtures, these will be discussed in chapter two, but non of these researches study the effect of the used admixtures on properties of concrete in its details.

The results of the tests showed that the properties of concrete will be affected by the percentage of admixtures and water cement ratio, and the optimum percent is 1% witout reducing wlc ratio and 1.5% with reduction of water, slag cement used this project is bad , and it requires chemical treatment.