A huge amount of sand is being used by the metal foundries within the metal casting process and the sand is successfully recycled and used by the foundries. After some time, foundries are not able to use the same sand again. Then the sand is taken off away from the foundries and is known as Waste Foundry Sand. There is almost 6 to 10 million tons of production of foundry sand annually. Some of the foundry sand dumped near the industries while some are dumped in the landfills. This causes pollution and increases the burden on landfills. Waste Foundry Sand consists mainly of silica sand about 96 to 99% and less than 1% carbon and mud. To enhance the strength and durability aspects, Waste Foundry Sand can be utilized in concrete for paver blocks which is a non-structural component. So, it can be used as a partial alternative of natural aggregates such as fine aggregates for accomplishing different properties of concrete. In this study, the effect of Waste foundry Sand as a substitution of fine aggregate on the compressive strength of paver block of M25 grade was investigated. There were five percentages of replacement to which Waste Foundry Sand was replaced by weight of fine aggregates i.e., 0, 10, 20, 30 and 40% by weight of the fine aggregate. Tests will be conducted for determining the compressive strength of paver block.
Key words: Waste Foundry Sand, Paver Block, Compressive Strength, aggregates
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