To Study the Flexural Strength of Concrete with Recycle Concrete Aggregates In The Presence Of Met kaolin.

Abstract

Concrete is such a costly material but Now a day’s waste concrete is only being used as a landfill material instead of recycling the concrete as a recycled concrete aggregate (RCA) to use for the construction purposes. . Concrete recycling gains importance because it protects natural resources and eliminates the need for disposal by using the readily available concrete as an aggregate source for new concrete or other applications. . The states that do use recycled concrete aggregate (RCA) in new concrete report that concrete with RCA performs equal to concrete with natural aggregates. Urbanization growth rate of  india is very high due to industrialization , growth rate of india reaching 9% of GDP, The construction industry is a major contributor towards India’s GDP, both directly and indirectly. Cement demand in India is expected to increase due to government’s push for large infrastructure projects, leading to 45 million tonnes of cement needed in the next three to four years.

Central Pollution Control Board has estimated current quantum of solid waste generation in India to the tune of 48 million tons per annum out of which, waste from construction industry only accounts for more than 25%. Management of such high quantum of waste puts enormous pressure on solid waste management system.

The main object of our work is to use the Recycle coarse aggregates with Metakaolin and to study the effect on flexural strength of concrete for different ratios of RCA and Metakaolin.