In this regard, it is necessary to provide steel bars to provide the tensile strength lacking in concrete.
As a structural member, concrete can be made to carry tensile stresses (as in beam in flexure). REINFORCED CONCRETE As with most rocklike mass, concrete has very high compressive strength but have a very low tensile strength. The aggregates (sand, gravel, crushed rock) are held together in a rocklike mass with a paste of cement and water. CHAPTER 1 Introduction Concrete Concrete is a mixture of water, cement, sand, gravel crushed rock, or other aggregates.