Impact of Water Quality on Strength Properties of Concrete.

Abstract

The hardening of cement gives strength and durability to concrete. The quality of mixing water may affect the setting, hardening and strength of the concrete. Great control on properties of cement and aggregates is exercised, but the control on the quality of water is neglected. The suitability of a particular source of water for making concrete can be checked by casting concrete cubes using water under question and comparing its 7 days, 14 days and 28 days strength. If the compressive strength is up to 90 percent, the source of water may be accepted. The aim of the present study was to know the effect of chemical impurities in mixing water on different properties of concrete. This work was carried out for a mix of M 20 Grade concrete with to study effect of use of Potable, Ground and Sewage water on the strength development of concrete at 7, 14 and 28 days. From the results it is observed that Potable water results in good strength properties in concrete and there is increase of 33.34% in compressive strength when compared to sewage water