How To Cut Concrete Wall

Chisel out the high spots use cement to fill in the.

How to cut concrete wall.

They have the saws to get the job done. Hire a concrete cutting company. To cut concrete with a 15 amp circular saw start by using chalk to mark cut lines on the surface of the slab. Hold the concrete saw up to the wall and line up the blade with the line.

Line up the blade of a concrete saw over the marks on one side of the wall. Concrete is a mix of sand gravel cement and water and it is everywhere. Slowly guide the blade along the line until you get to a corner. Each time the saw makes a full pass up and down the contractor increases the depth of the saw blade so that it eventually cuts.

A circular saw with a masonry blade can also be used to either score or completely cut through the block. I don t recall exactly what it cost i think about 300 per window and well worth it. A huge water cooled cutting saw attaches to each rail and is slowly moved up and down the rails. Score the length of the cut three or four times with the chisel.

If your cut doesn t need to be exact use a cold chisel and hand sledge to cut the concrete. Remove the saw blade and start in the other direction following the same procedure. If working on a vertical job like cutting into a concrete retaining wall then water can be trickier to employ. 4 deep or so should be good enough.

Turn on the saw and slowly guide the blade into the concrete. You are going to be doing some major carnage to break that stem wall out. I also don t remember a major dust storm i think they used water. They charge by the linear foot.

I had a couple windows cut in an 8 inch concrete wall by the same chain saw concrete cutting method already mentioned. Step 3 cut the concrete block wall. I have added windows or doors in the basement in my last couple of houses and i have determined that there is only one way to cut an opening in an 8 poured concrete wall. Ask a friend to spray water on the slab of concrete as you work or nix this step.

Then grab the sledge hammer. The concrete cutting contractor used a hammer drill to drill and bolt two parallel metal rails to the concrete wall. Cutting hollow concrete block first score the line. The end result is going to be rough looking.

Start at the top of the opening and cut carefully along the lines you made on the wall.