Yadhu G and S Aiswarya Devi
Nowadays the greatest crisis faced by the construction industry is the availability of sand. As the digging of river sand destroys the river bed and causes danger for people using the river, digging of river sand has been made illegal in most rivers. So getting river sand is really expensive nowadays as its availability is very limited. So more importance is now given nowadays for replacement of river sand as fine aggregate. Mostly used nowadays in Kerala is M-Sand. In our project we are trying to replace sand with crushed used (demolished) concrete. The concrete created with this aggregate showed almost the same strength of concrete with natural sand. This is not only much cheaper than river sand and M sand, but also helps to decrease the disposal of construction wastes, which environmentalists say degrades the land. So in the end use of this crushed concrete is beneficial not only to the contractor but also to our environment. This is an experimental study to see the feasibility of C&D wastes as fine aggregate in concrete.
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