Aggregate

Coarse aggregates refer to irregular and granular materials such as sand, gravel or crushed stone and are used for making concrete. In most cases, coarse is naturally occuring and can be obtained by blasting quarries or crushing them by hand or crushers. It is imperative to wash them before using them for producing concrete their angularity and strength affect the concrete in numerous ways. Nedless to say, the selection of these aggregates is very imporatant process.