Cutting Concrete Slab For Electrical Conduit

Set the diamond blade on the concrete wet saw to a depth of 4 1 2 inches and cut along both chalk lines.

Cutting concrete slab for electrical conduit.

Save the piece for later. Instead finish the cut with a utility knife. It also allows future expansion of the electrical system by pulling additional wires through the conduit. Step 7 backfill around the pipes.

Next cut out the exposed strip of plywood or osb that covers the slab but don t go all the way through. 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. Installing conduit under or in concrete slabs protects the wires from the weight and corrosion of the cement. In this video we are cutting concrete with a circular saw aka skil saw.

Use a chisel and hammer to remove the three scrap pieces. The blade that i am using is a bosch db741c 7 inch premium segmented diamond blade.