Effect of Domestic Waste Water on Physical Properties of Concrete Mix

Abstract

Portable water is very precious for the developed countries. Due to increase in construction work and rapid industrialization so that the large volumes of normal water is used. The partially treated and treated waste water to be reused where ever it is possible for sustainable development. Concrete technology is one of the large industries, which is consuming large amount of water for curing purposes .Water is both beneficial as well as detrimental effects on concrete. The domestic waste samples were collected from the Sewage Treatment Plant ( STP ) Waknaghat, Solan . Concrete cubes cast in 150 mm x 150 mm x 150 mm cubes mold were used to show the effect of the waste water on concrete strength. M30 grade mix design was used for casting of cube. While, the water-cement ratio was 0.45 for mixing purposes. After removing from their moulds, cubes were cured using waste water. compressive strengths of all the cubes were tested for different time period i.e. 3, 7, and 28 days (based on their curing time) and the average value of the specimens was taken. Domestic waste water was used with different ratios (i.e 20%,30%,40%,50%). Different tests were performed on these samples to check the properties. Different tests were also performed on different materials used in the concrete making process. Then Compressive strength of all different concrete mixes were calculated by using Compression Testing Machine. We get the targeted strength of the mix made with 20% waste water in normal tap water. Thus from our study it shows that 20% of waste water is acceptable in the concrete mix water.