ash

Concrete is a composite construction material composed primarily of aggregate, cement and water. Technically speaking, concrete is a heterogenous mixture that has several variations – it’s recipe can include sand, ash, pumice, silica, quicklime, pozzolanic ash, crushed limestone, and crushed granite (to name a few). The chemical process in which concrete solidifies and dries is actually (and ironically) called hydration. The substance and […]