Originally Posted by
scp_ok
Do I need at least something in the drive way if they are not going to put in rebar. The standard is just concrete so wiremesh is not put in either.
For the patio I'm thinking of putting in hot tub at some point so would I need rebar to support its weight.
Rebar just makes is stronger, right. Perhaps also prevent or reduce it cracking over time?
Do not worry about putting rebar in the patio, even if you put a swimming pool there, if you order 3500 # concrete with fiber, it is suppose to support 3500 # per square inch of force. So the hottub will be prefectly o.k. on the patio. The fiber will take the place of the rebar, or the wire mesh. One consideration is that with the fiber mesh in the concrete you will have a smooth surface true, but there will be the fine hair like fiber mesh extruding up a little that will be worn off very shortly after you begin to use it. It would be a good idea to wear some sort of foot wear until you were ready to enter the hottub until the fibers protruding the top surface of the concrete is worn off.
By all means though, use the fiber mesh.
And as fall and winter is approaching, depending on the temperature outside, if it begins to be too cold the concrete company may suggest adding calcium to the concrete and this is suppose to help keep it from cracking due to freezing temperatures on the day, or the night of the pouring. So hurry and do what you are going to do.
Use the fiber and you will be satisfied.