Cutting Lines In Concrete

Let the weight of the saw and the blade do the cutting.

Cutting lines in concrete.

Fix a pair of vice grips to the side of the old. What kind of saw to use one thing to be aware of before we go further. If of your slab s thickness doesn t reach 1 make sure you still cut at least a 1 depth. Saw cutting cuts joints as soon as the concrete is hard enough that the edges abutting the cut don t chip from the saw blade.

Saw cuts are a used to create control joints in concrete which help control where cracking occurs due to shrinkage. Makes it easier to make. A good rule of thumb is to make your cut the thickness of your concrete. Mark the cutlines on your concrete using chalk lines or a piece of chalk.

Attach a 14 inch 36 cm wet cutting diamond blade to a cut off saw. Apply the line as thick as possible. The cuts should be made at a predetermined spacing and only after the concrete has obtained sufficient strength but before internal cracking begins. The concrete you will find is going to expand over time as well.

Using a cut off saw 1. Recap on cutting concrete control joints control joints are not intended to stop cracking but rather control cracking it is best to cut joints as early as possible either while finishing with a concrete groover or within 6 18 hours after. Place joints under walls or under carpet areas under walls they won t be seen. When dry cutting back the blade off and allow it to run free every 30 to 45 seconds to prevent overheating.

Mark the places you want to cut on the concrete slab either using chalk line good for long straight edges or chalk. Groover tools cut joints in fresh concrete. Adjust the blade depth of your. You ll ideally run a trickle of water.

While this goes along with the. Why do they cut lines in concrete contraction can happen. Therefore the timing of saw cuts is critical. Contraction of the concrete is a major issue and it will cause quite a few cracks in the.

Plan out your control joint spacing 24 36 times the depth. How to cut a concrete floor for new plumbing before cutting. For perfectly straight lines use a chalk. Cutting hollow concrete block first score the line don t force a blade into a cut.