Aggregate (composite) facts for kids

Grinding concrete exposes aggregate stones.

Aggregate is the component of a composite material that resists compressive stress and provides bulk to the composite material. For efficient filling, aggregate should be much smaller than the finished item, but have a wide variety of sizes. For example, the particles of stone used to make concrete typically include both sand and gravel.

See also

In Spanish: Árido (minería) para niños