Walk-behind concrete saw A heavy, wheeled machine equipped with a circular diamond-tipped blade used to cut clean, straight, and deep contraction joints or boundaries in asphalt and concrete.
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.
Frequently Asked Questions About Walk-behind concrete saw
What is a walk-behind concrete saw?
A wheeled machine with a circular diamond blade used to cut clean, straight, deep lines in concrete and asphalt.
Why cut before demolition?
So the damaged flag separates cleanly and the adjacent flags stay intact when the concrete is broken out.
What else is it used for?
Cutting control joints in newly placed concrete, so shrinkage cracking follows the joint instead of appearing randomly.
Is dust controlled?
Wet cutting is commonly used to suppress silica dust and cool the blade, which is both a safety and a compliance matter.