Cutting Groove In Concrete Floor

Connect one end of a.

Cutting groove in concrete floor.

Place the tip of a walk behind concrete saw blade over the center of one line. Snap a chalk line over the concrete where you want the center of the drainage groove. Groove cutting is cutting the laid concrete providing grooves of size 5mm wide and one third of the thickness of the concrete or as required at site within 48 hours of laying of the concrete to form bays of 4mtrs x 4mtrs using heavy duty cutting machine with diamond cutting wheel and filling of the grooves with appropriate sealant. Saw cuts are a used to create control joints in concrete which help control where cracking occurs due to shrinkage.

This will make a 1 8 groove. Most residential concrete floors are about 4 inches thick and contain steel reinforcement in the form of steel rebar and steel mesh. Don safety glasses hearing protection and steel toed boots for protection. Fill the groove with a good quality concrete caulk and slide a piece of vinyl flashing into the groove.

Therefore the timing of saw cuts is critical. If your cut doesn t need to be exact use a cold chisel and hand sledge to cut the concrete. The cuts should be made at a predetermined spacing and only after the concrete has obtained sufficient strength but before internal cracking begins. Forget about circular saws concrete blades and jackhammers.

Measure to the left and to the right of the chalk. Locate the area of the concrete floor where you would like to cut the channel. 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. 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.

Score the length of the cut three or four times with the chisel. How to cut drain grooves in concrete. Turn on the saw blade and. Patience and careful chiseling will be required.

Don t force a blade into a cut. How to cut a shallow channel into a concrete floor.