Concrete

Concrete Definitions: 1. __Concrete__ is a manufactured mixture of cement and water, with aggregates of sand and stones which hardens rapidly by chemical combination to a stonelike, water-and-fire-resisting solid of gret compressive but low tensile strength. 2. __Reinforced concrete__ is a combination between concrete and steel, developed to add the tensile strength of steel to the compressive strength of mass concrete.