Cutting Groove In Concrete Floor

Therefore the timing of saw cuts is critical.

Cutting groove in concrete floor.

Forget about circular saws concrete blades and jackhammers. Saw cuts are a used to create control joints in concrete which help control where cracking occurs due to shrinkage. Measure to the left and to the right of the chalk. Check to make sure there are no electrical or plumbing lines.

Locate the area of the concrete floor where you would like to cut the channel. A circular saw with a masonry blade can also be used to either score or completely cut through the block. Place the tip of a walk behind concrete saw blade over the center of one line. The cuts should be made at a predetermined spacing and only after the concrete has obtained sufficient strength but before internal cracking begins.

It will be challenging to make the bottom of the groove smooth. Most residential concrete floors are about 4 inches thick and contain steel reinforcement in the form of steel rebar and steel mesh. Cut the groove as close to the wall as you can about 1 deep and angle it slightly further away from the wall at the end you want the water to flow. Score the length of the cut three or four times with the chisel.

How to cut a shallow channel into a concrete floor. Patience and careful chiseling will be required. Turn on the saw blade and. Fill the groove with a good quality concrete caulk and slide a piece of vinyl flashing into the groove.

Cut two parallel grooves about an inch deep cutting the groove too deep may weaken the concrete then use an impact hammer with a chisel blade to chisel our the area between the two grooves. This will make a 1 8 groove. Don safety glasses hearing protection and steel toed boots for protection. If your cut doesn t need to be exact use a cold chisel and hand sledge to cut the concrete.

Snap a chalk line over the concrete where you want the center of the drainage groove. How to cut drain grooves in concrete.