How Aggregate Form Changes Concrete

Aggregate form affects how concrete mixes, packs, and bonds. Coarse aggregate is classified by the sharpness or roundness of its edges and corners. The main shapes are rounded, angular, elongated, and flaky. These shapes help show how the particles will behave in concrete.

Rounded aggregates are ...

The shape of the coarse aggregate is defined by two characteristics: roundness, which indicates the sharpness or angularity of its edges and corners, and sphericity, which measures how closely it resembles a sphere.

Using simple gauges, the shape of the coarse aggregate can be identified as elongated if its length is considerably larger t...