ASTM C39 - Compressive Strength of Cylindrical Concrete Specimens II CET163 G7

Compressive strength is the capacity of a material to withstand axially directed pushing forces. When the limit of compressive strength is reached, materials are crushed. By theory, the compressive strength of a material is the value of uniaxial compressive stress reached when the material fails completely. The compressive strength is usually obtained experimentally by means of a compressive test by applying load to the concrete cylinder.