Author : Sourab M 1
Date of Publication :15th March 2017
Abstract: The concrete industry is consuming approximately one billion tonnes of mixing water annually. In addition, large quantities of fresh water are also used for washing the aggregates and curing of concrete which is unaccounted for. The current trend all over the world is to utilize the treated and untreated industrial by-products as a raw material in concrete. This practice not only helps in reuse of the waste material but also creates a cleaner and greener environment. It is very much understandable at this point of time that a variety of supplementary materials and industrial by-products have been successfully incorporated as raw material substitutes, additives, and admixtures in cement and concrete.However, a limited research is being reported for the replacement of water used for mixing and curing.It is reported that approximately, 150 litres of water is required per cubic metre of concrete mixture, without considering other applications of water at the concrete industry. It is to be noted that water is a critical environmental issue and fresh water supplies are becoming limited worldwide. Similar to natural materials like limestone and aggregates, even potable water is becoming scarce.India is facing serious water crisis even for drinking water. The reason are increased population, urbanisation, industrialisation or be it inadequate amount of rain. Considering this above scenario into consideration, authors have presented an idea about possible utilization of treated domestic waste water in the concrete and the detail of the investigation will be presented in this paper. The effect of compressive strength of the concrete when treated domestic waste water is used as both mixing and curing waterwill be reported. Concrete cubes will be cast with both treated waste water and laboratory water and later cured with both treated domestic waste water and laboratory water. Compressive strength test would be carried out on the cubes for 3, 7, 28 and 90days and the findings are reported.
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