The Construction aggregate can be classified as,
(i) Normal weight aggregates,
(ii) Light weight aggregates and
(iii) Heary weight aggregates.

Light weight aggregate and heavy weight aggregate will be discussed later briefly in this site. The properties of normal weight aggregates will only be discussed now.

Normal weight aggregates can be further classified as natural aggregates and artificial aggregates.

The Natural Aggregates are, Sand, Gravel, Crushed Rock such as Granite,Quartzite, Basalt, Sandstone.

The Artificial Aggregates are, Broken Brick, Air-cooled Slag, Sintered fly ash, Bloated clay.

Aggregates can also be classified on the basis of the size of the aggregates as coarse aggregate and fine aggregate.