Cutting Concrete Slab For Electrical Conduit

Make a second cut inch away and parallel to the first. Installing conduit under or in concrete slabs protects the wires from the weight and corrosion of the cement. Next cut out the exposed strip of plywood or osb that covers the slab but don t go all the way through.

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The blade that i am using is a bosch db741c 7 inch premium segmented diamond blade.

Cutting concrete slab for electrical conduit.

Use a chisel and hammer to remove the three scrap pieces. The concrete will ruin your saw blade. If you have installed any electrical conduit which does not require a pressure test tape the opening to the conduit closed with duct tape to prevent concrete from falling in. Save the piece for later.

It also allows future expansion of the electrical system by pulling additional wires through the conduit. Ridged nonmetallic pvc conduit is the right material for this job because it is watertight inexpensive and easy to work with. Step 7 backfill around the pipes. Instead finish the cut with a utility knife.

Set the diamond blade on the concrete wet saw to a depth of 4 1 2 inches and cut along both chalk lines. In this video we are cutting concrete with a circular saw aka skil saw.

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