ROLE OF WATER AND FACTORS AFFECTING IT IN CONCRETE

Abstract

The water in a concrete mix possess same importance as the other ingredients in concrete. Perhaps it is most important factors because on the one side its presence is necessary to achieve the desirable properties of concrete, on the other side lack or excess of this, effect the desirable properties of concrete. In this project, it has been shown that how does the water affect the properties of fresh and hardened concrete and how can it be optimized to achieve desired properties. Superplasticizer and graded fine aggregate is used to optimize the water/cement ratio. These factors cause reduction in w/c ratio as well as help to achieve the high strength. Fine aggregate to coarse aggregate ratio is also fixed to improve the combined grading which helps to reduce the water content and to achieve the high strength concrete. The effect of shape and size of coarse aggregate has been also shown on the workability as well as on the compressive strength of concrete. According to codal...