A Study on Compression Strength of Concrete using Treated Domestic Waste Water

In the present day there is a scarcity of fresh water and construction activities are increasing day by day consuming huge quantity of fresh water. Therefore research is going on to use treated domestic waste water in the preparation of concrete. The concrete specimens prepared with M20 and M40 grade concrete. The concrete specimens cast by using 0%, 50%, and 100% treated domestic waste water and cured in treated domestic waste water for 7days 14days and 28days. Increase in compressive strength from 7 days to 14days for all the 4 mixes is marginal for both the grades of concrete i.e. M20 and M40. At 28days curing age decrease in compressive strength was observed from mix M1 to M4 expect mix M2. This decrease in compressive strength may be due the use of treated domestic waste water for mixing and curing. Lowest strength is exhibited by Mix M4 i.e. 28.77Mpa however this strength is higher than the target mean strength of 26.4Mpa.The excess quantity of bicarbonates in treated domestic waste water as mixing water results decrease in compressive strength concrete specimens.