Study on Strength Behaviour of Concerte Using Foundry Dust in Fine Aggregate

Abstract

Study On Strength Behaviour Of Concerte Using Foundry Dust In Fine Aggregate paper reviews the strength behaviour of concrete using foundry sand as fine aggregate. The fine aggregate is replaced by foundry sand in the range of 0%, 10%, 20%, 30%, 40%, 50% and 60% by weight for M-25 grade concrete. Two types of foundry sand such as green sand and chemically bonded sand are used. Concrete mixtures are tested and 7, 14 and 28 days strength are found out. This research work is concerned with experimental investigation on strength of concrete by replacing fine aggregate by 0%, 10%, 20%, 30%, 40%, 50% & 60% of used foundry sand and the compressive strength, split tensile strength and flexural strength are found out.

Conclusion

From the results, it is found that the compressive strength of cubes, spilt tensile strength of cylinders and flexural strength of beams increases when the fine aggregate is replaced by green sand from 0% to 40% and then after 40% replacement by green sand, the compressive strength, spilt tensile strength and flexural strength starts to decrease and similarly the compressive strength of cubes, spilt tensile strength of cylinders and flexural strength of beams increases when the fine aggregate is replaced by chemically bonded sand from 0% to 30% and then after 30% replacement by chemically bonded sand, the compressive strength, spilt tensile strength and flexural strength starts to decrease. The optimum percentage for replacing fine aggregate by green sand is 40% and the optimum percentage for replacing fine aggregate by chemically bonded sand is 30%.