Aggregate

Aggregate is a granular material, for instance, sand, rock, squashed stone, pounded water fueled bond, or iron effect radiator slag, used with a weight driven hardening medium to make either concrete or mortar.

Aggregates have two types.

·        Coarse  Aggregates

·        Fine  Aggregates

Coarse Aggregates

Those particles that are overwhelmingly hung on the 4.75 mm (No. 4) strainer, are called Coarse Aggregates coarse downright

Coarse Aggregates

Those particles passing the 9.5 mm (3/8 in.) sifter, totally passing the 4.75 mm (No. 4) sifter, and dominatingly hung on the 75 µm (No. 200) strainer are called fine aggregate