A walk-behind concrete saw is essential for creating clean separation lines before demolition. In NYC, contractors are required to saw-cut the boundaries of the damaged sidewalk flags to ensure that when the old concrete is jackhammered, the adjacent flags remain perfectly intact. These saws are also used to cut controlled joint lines in newly cured concrete, which directs natural shrinkage cracking to happen below the surface where it remains invisible and structurally harmless.
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