No matter how hard concrete gets or how strong it is there is nothing that can stick it to the older surface.
Can you pour concrete over old concrete driveway.
So fyi can you pour new concrete on top of old yes but it will not solve your problem and look nearly the same as the old concrete in a short period of time.
The form shall extend above existing concrete surface based on the designated thickness of the new concrete.
For this to be feasible the contractor needs to pour at least 2 inches thick use smaller aggregate and incorporate reinforcement such as welded wire mesh or fiber mixed into the concrete.
When wouldn t i want to pour new concrete over old concrete.
Pouring concrete over an existing concrete driveway or sidewalk.
Oil dirt and other debris can affect how the new concrete bonds with the old.
You can if the concrete is sound solid with minor cracks pitting scaling surface damage or just plain ugly.
Call tucker paving for your new driveway when you are ready to transition your old concrete driveway into a new asphalt one give tucker paving a call.
If you re concrete has large cracks and the slab may still be moving due to freeze and thaw conditions or settling then a tear out and replace is a better solution.
Pouring over old concrete need similar basic formworks that employed with fresh pours.
By the way it will take you much longer to break up two layers of poured concrete in the future cost you more if someone else does it and the work put in the second slab will be a.
Before pouring concrete over existing concrete driveway or sidewalk surfaces remove stains and loose material so the new concrete can stick properly.
Your best bet is going to be to tear up the old concrete before pouring the asphalt.
If done properly new concrete can often be poured right over an existing slab.
That kind of equipment can really punish a concrete floor.
Install the form usually wood form around the perimeter of old concrete surface.
So if you pour new concrete over the old surface without preparing the one beneath it will crumble within no time and will lead to another big headache.
Make sure that the height of the formwork is even.