Post-tensioned slab construction is identified by:
Correct Answer
B) Cables tensioned after the concrete cures
Why this is correct: Post-tensioned concrete slabs are reinforced with steel cables (tendons) that are tensioned (pulled tight) after the concrete has been poured and has cured. This places the slab under compression, improving its strength. Why the other choices are wrong: It does not involve steel columns supporting a floating slab. It does not use wood framing beneath the concrete. It definitely uses reinforcement (the cables). Exam tip: A key inspection issue: cutting into a post-tensioned slab can be dangerous if the cables are severed.
Why This Is the Correct Answer
Why this is correct: Post-tensioned concrete slabs are reinforced with steel cables (tendons) that are tensioned (pulled tight) after the concrete has been poured and has cured. This places the slab under compression, improving its strength. Why the other choices are wrong: It does not involve steel columns supporting a floating slab. It does not use wood framing beneath the concrete. It definitely uses reinforcement (the cables). Exam tip: A key inspection issue: cutting into a post-tensioned slab can be dangerous if the cables are severed.
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