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Why Do Highway Builders Allow Rebar To Rust Before Pouring

There is usually no accepted rule of thumb for how to set the spacing of reinforcement in concrete slabs. There are a number of variables that affect the decision on how much space is left, including the maximum load that a concrete slab may bear to support the soil, the diameter of the reinforcement, the possibility of frost heaving of the slab, and whether the slab is on a horizontal slope

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