Aggregates Aggregates Introduction Aggregates are the inert materials that are mixed in fixed proportion with cementing material to produce concrete These act as fillers or volume increasing components on the one hand and are responsible for strength hardness and durability of the concrete on the other hand Most of the aggregates used are naturally e or curing aggregates such as coarsed rock, gravel and coarse sand Artificial and processed aggregates may be broken break or crushed air-cooled blast furnace slag These aggregate are bound together by means of cement Properties of good aggregates Following are the desirable properties for requirement of a a good aggregates It should be chemically inert the aggregate should be sufficiently strong to withstand the stress developed due to the wheel loads of the traffic It shoul...