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What Is Ballast Used In Building

What Is Ballast Used In Building

2019-9-3Ballast is the main ingredient in concrete and is a proportional mixture of sharp sand and aggregate. Concrete is made up of 4 parts aggregate 2 parts sharp sand 1 part cement and water. The bit that is aggregate and sharp sand is known collectively as as ballast and is sold as such ready-mixed in tonne bags etc

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