Effect on Strength of Concrete by using Artificial Manufacturing Sand & Hypo Sludge an Industrial Waste

Concrete is today more than 9000 years old and has undergone several changes not only in its composition but also in its performance and applications. From a simple beginning around 7000BC to most complicated design and application in 2013AD, concrete has been used in several structures from housing to various infrastructure projects. Concrete has played a key role in development of our planet earth in developed, developing and under developed countries. Today, development of every type needs concrete, be it in infrastructure, in industry or even in space technology and telecommunication. In the last millennium concrete had demanding requirements both in terms of technical performance and economy and yet greatly varied from architectural masterpieces to the simplest of utilities. Natural sand is excavated from river bed which`h impacts on environment in many ways. Due to digging of the sand from river bed reduces the water head, so less percolation of rain water in ground, which result in lower ground water level. There is erosion of nearby land due to excess sand lifting as well as it destroys the flora & fauna in surrounding areas. Due to limited supply of natural sand, cost is very high and its consistent supply cannot be guaranteed. Under these circumstances use of alternative of River Sand becomes unavoidable. Also, for sustainable development, it is indeed necessary to utilize various solid waste which leads to environment degradation. Over 300 million tons of industrial wastes are being produced per annum by chemical and agricultural process in India. Out of several wastes being produced at present, the use of phosphor-gypsum, flurogypsum, lime sludge, hypo sludge, red mud, and mine tailing is of paramount significance to protect environment. This research work is concerned with experimental investigation on strength of concrete and partial replacement of cement by 0%, 5%, 10%, 15%, 20 %, 25 %and 30 % of Hypo Sludge while manufactured sand is used as fine aggregate in cement concrete. In this work, we come to know that 15% of hypo sludge replacement for cement shows maximum strength in all. If we utilize hypo sludge in concrete while manufactured sand is used, it will help us to protect environment from ill effects of extraction of river sand and also from the problem of dumping of hypo sludge.