Pre Tensioning Slab
In Pre tensioning slab, the steel tendons are tensioned before the concrete is cast.In pre tensioning slab the tendons are temporarily anchored against some abutments and then cut or released after the concrete has been placed and hardened.The pre-stressing force is transferred to this concrete by the bond along the length of the tendon.
Advantages Of Pre Tensioning Slab
- It has long term durability.
- Required low maintenance.
- The use of curved tendons and the pre-compression of concrete help to resist shear.
Disadvantages Of Pre Tensioning Slab
- Required skilled labors.
- It requires perfect supervision at all stages of construction.
- It requires high tensile steel which is costlier than mild steel.
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