Cutting Lines In Concrete
Using a cut off saw 1.
Cutting lines in concrete. Place joints under walls or under carpet areas under walls they won t be seen. A good rule of thumb is to make your cut the thickness of your concrete. Why do they cut lines in concrete contraction can happen. Cutting hollow concrete block first score the line don t force a blade into a cut.
Apply the line as thick as possible. When dry cutting back the blade off and allow it to run free every 30 to 45 seconds to prevent overheating. How to cut a concrete floor for new plumbing before cutting. Groover tools cut joints in fresh concrete.
Contraction of the concrete is a major issue and it will cause quite a few cracks in the. For perfectly straight lines use a chalk. Plan out your control joint spacing 24 36 times the 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.
Therefore the timing of saw cuts is critical. You can use a dry cutting blade with or. Adjust the blade depth of your. While this goes along with the.
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. Makes it easier to make. 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.
Attach a 14 inch 36 cm wet cutting diamond blade to a cut off saw. Mark the places you want to cut on the concrete slab either using chalk line good for long straight edges or chalk. You ll ideally run a trickle of water. Saw cuts are a used to create control joints in concrete which help control where cracking occurs due to shrinkage.
The concrete you will find is going to expand over time as well. Before cutting into the concrete floor obtain a set of the home s mechanical prints to determine the. Let the weight of the saw and the blade do the cutting. The cuts should be made at a predetermined spacing and only after the concrete has obtained sufficient strength but before internal cracking begins.