Contol joints

[Monkey Radio]

I was wondering if I can use a standard walk behind concrete saw or do I need a soft cut saw? I am getting ready for the pour in a day or to.
Shop 26x32x10

 

[ConCretin]

The soff-cut saw is designed for cutting joints immediately after finishing, which is the best way to avoid random cracks.

You'll have to wait at least 24 hours before using a normal floor saw or risk a raveled joint. It will work fine but you run the risk of cracks occurring before you cut.

 

[Pinhook]

Keep slab moist to avoid shrinkage cracks

Cut control joints every 10' on center.

 

[camarotoolman]

You can use a power saw with a masonary blade too. Use a straight edge as a guide or chalk line.