Why Steel bar is used in Concrete || Why not Aluminum, Bronze etc.

This lecture is about that why we use steel bar in concrete not other material like Aluminium, bronze, glass etc. There is only one reason that we prefer to use steel bar in concrete and it is the thermal coefficient of expansion. The thermal coefficient of expansion of bother concrete and steel is almost similar due to which there will no such high stresses when temperature changes. For more details please watch full video.

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Видео Why Steel bar is used in Concrete || Why not Aluminum, Bronze etc. канала Civil Engineering