In the construction and civil industry, steel plays a very important role in them more than any other industry. So, if this metal alloy did not exist, we would not have seen the development of these industries. Today, steel can be seen in all stages of a structure. It is used from making foundations and bases to some delicate works in building decorations. Even in the construction of many indoor devices, this metal alloy plays a very important role. For each stage of building construction, there are various requirements for the use of steel. Each of them is made of a steel section.
Steel rebar is used to improve the tensile strength of concrete. Because concrete is very weak in tension. At the same time, its resistance under pressure is very high. Steel rebar is used to increase the strength of concrete. Because steel elongation due to high temperature (thermal expansion coefficient) is almost equal to concrete.