Cutting A Trench In Concrete

Locate the area of the concrete floor where you would like to cut the channel.

Cutting a trench in concrete.

This is how to video on cutting a plumbing trench in concrete. Once the concrete is out you can dig in the remaining trench to remove the sand or soil before running the new plumbing. I think he was seeing rebar. Connect one end of a.

Snap a chalk line over the concrete where you want the center of the drainage groove. Measure to the left and to. I also had to break up footings in a few locations as well. To cut concrete with a 15 amp circular saw start by using chalk to mark cut lines on the surface of the slab.

Place the tip of a walk behind concrete saw blade over the center of one line. Check to make sure there are no electrical or plumbing lines. 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. Don safety glasses hearing protection and steel toed boots for protection.

The slab was about 4in thick with wire mesh and a plastic barrier between the concrete and the wet clay like soil home located in new orleans. How to cut a shallow channel into a concrete floor. How to cut drain grooves in concrete step 1. I was on a hotel project where all the floors were post cable tensioned and a separate xray company wall called out for xrays for before any coring cutting in slab.

With the jackhammer cut the drainage channel down to where you dug the trench in your yard so that the water will flow in the correct direction. Rosin paper stihl diamond saw exhaust fan if you have any questions. Considerations cutting through a concrete floor should be a last resort. Turn on the saw blade and slowly.

I ve just cut several trenches 2 3 ft wide x 25 ft long in my existing concrete slab to run plumbing. Step 5 install the pipes to finish the job mix the cement and spread a layer about 3 inches thick around the mouth and sides of the drainage channel. Once you ve cut along the borders of the trench the next step is to remove the strip of concrete from between the two. Continue to cut along the entire length of the chalk line then go back to the starting point and make a second pass.

Tools used in this video.