It is a slab of usually Concrete that has Tension introduced upon it's Reinforcing rods/cables, AFTER it has been Poured, dried/set as opposed to a Pre-tension slab whereas the Tension is put on the reinforcing rod/cables inside the concrete and are Tensioned BEFORE or While it drys/sets
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It is a slab of usually Concrete that has Tension introduced upon it's Reinforcing rods/cables, AFTER it has been Poured, dried/set as opposed to a Pre-tension slab whereas the Tension is put on the reinforcing rod/cables inside the concrete and are Tensioned BEFORE or While it drys/sets