Why do we use steel and not any other metal in concrete

B/C-provides all the tensile strength where concrete is in tension

- provides extra shear strength over and above that of concrete

- offer a material that is higher in tensile strength

- Steel is not as easy to mould and shape

Characteristics of steel:

High tensile strength: The high tensile strength offered by steel products and especially steel reinforcement makes it ideal to strengthen concrete structures. A steel reinforced concrete structure will offer a material that is higher in tensile strength, which will not easily break under high tension as experienced in large structures.

High compressive strength: Steel, just like concrete, is resistant to high compression forces present in larger building an structures. Together, steel and concrete make for the perfect material to ensure lasting structures such as building, bridges and more.

Difficult to mould and shape: Steel is not as easy to mould and shape like fresh concrete, but can be moulded and shaped under extremely high temperatures. This makes it more complicated to shape and bend, but still possible. Vaal Value is able to cut and bend steel reinforcement (rebar and mesh) onsite, partially onsite, or completely in our own yard.

Relatively expensive: Although steel is relatively expensive, it is 100% recyclable , and there will be no material wastage.

We use steel in concrete as the co-efficient of thermal expansion of concrete and steel is almost same and steel has very good strength to withstand with the tensile loads.

The steel provides all the tensile strength where concrete is in tension, as in beams and

slabs; it supplements the compressive strength of concrete in columns and walls; and it

provides extra shear strength over and above that of concrete in beams.

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