Post Tensioning is a cleaver way of reinforcing concrete during construction. In General, Concrete has Compressive strength, i.e bears its own load, however it lacks Tensile Strength. So whenever live load is added , it has possibility of breakage, to mitigate this, Rebar (Reinforcement Bar – Steel Bars) are added to the Concrete to give it Tensile Strength. However, Rebar provides Passive Reinforcement, i.e it takes the load, only when Concrete failed and cracked. It limits the cracks from developing more. Whereas, to mitigate this, Post Tensioning provides Active reinforcement. PT provides compressive stress on the material, which offset the Tensile Stress that concrete may face due to load. PT is applied by use of post tensioning tendons

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Type of Post Tensioning: