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Paper Details

STRENGTH OF CONCRETE USING STONE DUST AND RECYCLED AGGREGATE AS PARTIAL REPLACEMENT OF NATURAL AGGREGATE

Prakant Chaudhary*1 R.K. Pandey2 Anjelo F. Denis3 Shahbaz Shamim4

Journal Title:Global Journal of Engineering Science and Research Management (GJESRM)
Abstract


Concrete is prime construction material used in practice. No construction can be dreamed without use of concrete. The main constituents of concrete such as sand, stone and water are naturally available. These resources of natural aggregates (sand, stone) are limited and day by day the dependency on them must be minimized. The aim of this study was to investigate the possibility of using stone dust as partial replacement of fine aggregate and recycled aggregate as partial replacement of coarse aggregate. In the present study cubes and cylinders were cast to determine the compressive and split tensile strength of concrete made using stone dust and recycled aggregate as replacement of natural aggregate. Concrete of M25 grade was designed for a W/C ratio of 0.50 for the replacement of 20% coarse aggregate with recycled coarse aggregate and replacement of 30, 40, 50%, 60% and 70% of fine aggregate (sand) with stone dust. The test results indicate that stone dust can effectively been used as partial replacement of fine aggregate in concrete. It is found that the compressive and split tensile strengths of concrete increase on use of stone dust. It is observed that the compressive strength of concrete made using 20% recycled aggregate and 30% stone dust as replacement of coarse aggregate and fine aggregate respectively, is close proximity of referral concrete at 28 days.

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