A circular saw with a masonry blade can also be used to either score or completely cut through the block.
Cutting lines in concrete driveway.
Make sure you are cutting joints soon enough.
Once you ve laid out the joints to be cut mark them using a chalk line.
When you are looking for saws to do relief cuts make sure that it is a down cut.
A good rule of thumb is to make your cut the thickness of your concrete.
In hot weather concrete might crack if joints are not cut within 6 12 hours after finishing concrete.
The lines act as pre weakened stress points that encourage the concrete to crack at these locations.
Score the length of the cut three or four times with the chisel.
You ll ideally run a trickle of water.
If your cut doesn t need to be exact use a cold chisel and hand sledge to cut the concrete.
These joints should be cut in a quarter of the depth of the concrete slab during the very beginning of the curing process within 24 hours of the initial pour.
Mark the places you want to cut on the concrete slab either using chalk line good for long straight edges or chalk.
Designate the area of finished concrete to be cut using chalk lines.
If you re using water cutting equipment make sure that the water is running all the way down to the blade.
Apply the line as thick as possible.
If of your slab s thickness doesn t reach 1 make sure you still cut at least a 1 depth.
What kind of saw to use.
Measure to the left and to the right of the chalk line 2 inches and snap two additional chalk lines.
The joints can also be installed as soon as the concrete hardens by using a diamond saw that cuts the line.
These are called control joints.
Using a metal jointing tool the.
Professionals who install concrete driveways install crisp tooled lines in the slabs.
Get a friend to hold one end while you hold the other and run the line over the region to be cut.
In this condition if you don t want to use a grooving tool to cut joints there are early entry dry cut lightweight sawsthat can be used almost immediately after finishing.
When you re cutting concrete that is already poured and finished use a chalk line to mark the region.
How to saw cut concrete.
Step 2 place the tip of a walk behind concrete saw blade over the center of one line.
The outside lines indicate where the concrete should be cut.
One thing to be aware of before we go further.