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Why does concrete cancer cause the concrete to spall (crack and break away)?

April 26, 2017away break cancer cause concrete crack spall

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Why does concrete cancer cause the concrete to spall (crack and break away)?

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Because as the steel corrodes, it expands, taking up a greater volume than it previously occupied. As it expands it the concrete around it is placed in tension. As concrete is poor in tension it cracks away reducing the strength of the reinforced concrete structure.