Lalit Mahato Describe Comparison of steel structures and Concrete structures?
Explanation
1. Due to high strength to weight ratio, steel is at least 3.5 times more efficient than concrete. To replace one unit area of steel in tension (with yield stress of 450 Mpa), the equivalent concrete (M30) area required may be about 200 units.
2. Steel offers much better compressive and tensile strength that concrete and enables lighter construction.
3. The quality of steel construction is superior., where as quality of concrete construction may be affected by poor control of water cement ratio and curing.
4. If reinforcement in concrete structures corrode, it is extremely difficult to repair and restore them to the original condition; where as steel members is easily repairable at almost any stage of corrosion.
5. Unlike reinforced concrete, steel can be easily recycled and can be used as another product without losing its quality.
Lalit Mahato