Chisel out the high spots use cement to fill in the.
How to cut concrete wall.
To cut concrete with a 15 amp circular saw start by using chalk to mark cut lines on the surface of the slab.
You may want to cut some blocks for your yard cut a wall or slab or whatever you want but if you are trying to cut it you have to do it in the right way because it s actually a hard job to do and instead of hiring a contractor to do the job and it may cost you a lot of money you can do it all by yourself if you.
I had a couple windows cut in an 8 inch concrete wall by the same chain saw concrete cutting method already mentioned.
Start at the top of the opening and cut carefully along the lines you made on the wall.
If working on a vertical job like cutting into a concrete retaining wall then water can be trickier to employ.
Ask a friend to spray water on the slab of concrete as you work or nix this step.
The end result is going to be rough looking.
Step 3 cut the concrete block wall.
You are going to be doing some major carnage to break that stem wall out.
4 deep or so should be good enough.
A huge water cooled cutting saw attaches to each rail and is slowly moved up and down the rails.
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.
Cutting hollow concrete block first score the line.
Slowly guide the blade along the line until you get to a corner.
Turn on the saw and slowly guide the blade into the concrete.
Score the length of the cut three or four times with the chisel.
Then grab the sledge hammer.
Hire a concrete cutting company.
Hold the concrete saw up to the wall and line up the blade with the line.
Concrete is a mix of sand gravel cement and water and it is everywhere.
I don t recall exactly what it cost i think about 300 per window and well worth it.
They charge by the linear foot.
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.
They have the saws to get the job done.
A circular saw with a masonry blade can also be used to either score or completely cut through the block.
The concrete cutting contractor used a hammer drill to drill and bolt two parallel metal rails to the concrete wall.
Line up the blade of a concrete saw over the marks on one side of the wall.
Remove the saw blade and start in the other direction following the same procedure.
Next set the saw s blade depth to 2 inches and attach a 7 inch diamond blade using vice grips so that the teeth point in the opposite direction of movement.
