STRENGTH INVESTIGATION ON PARTIAL REPLACEMENT OF FINE AGGREGATE WITH WASTE FOUNDRY SAND IN CONCRETE

Casting industries produce millions of tons of by-product throughout the world. In India, millions of tons of waste foundry sand is produced yearly. Foundry sand is a high quality silica sand with uniform physical characteristics and by product of ferrous and non-ferrous metal casting industry. WFS are major by-product of casting industry and create land pollution. The management of solid industrial waste is of big global concern nowadays. The disposal of waste foundry sand is of prime importance due to the big volume produced from the foundries all over the world. This experimental investigation discuss on partial replacement of fine aggregate with waste foundry sand with six percentage (0%, 10%, 20%, 30%, 40% and 50%). The grade of concrete selected for the study is M25. The concrete was tested for compression strength test, for 7, 14 & 28 days and the result found that there is a increase in strength for 50% replacement of foundry sand in concrete.