Cutting A Trench In Concrete

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.

Cutting a trench in concrete.

Though a good concrete cutter can tell the difference between rebar and cable if he s cutting it. Turn on the saw blade and slowly. I think he was seeing rebar. 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. Locate the area of the concrete floor where you would like to cut the channel. Continue to cut along the entire length of the chalk line then go back to the starting point and make a second pass. How to cut drain grooves in concrete step 1.

Tools used in this video. The same guy that operated the scanner cut the trench. Check to make sure there are no electrical or plumbing lines. Snap a chalk line over the concrete where you want the center of the drainage groove.

Connect one end of a. How to cut a shallow channel into a concrete floor. Place the tip of a walk behind concrete saw blade over the center of one line. Don safety glasses hearing protection and steel toed boots for protection.

Considerations cutting through a concrete floor should be a last resort. 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. 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. Set the bit down between the two saw cuts and about four.

Once you ve cut along the borders of the trench the next step is to remove the strip of concrete from between the two. I also had to break up footings in a few locations as well. 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. I ve just cut several trenches 2 3 ft wide x 25 ft long in my existing concrete slab to run plumbing.

To cut concrete with a 15 amp circular saw start by using chalk to mark cut lines on the surface of the slab.