Be sure to cover all of the concrete evenly.
Can you pour concrete over old concrete steps.
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.
There are cases when pouring new concrete over old just isn t a viable solution.
The condition of the existing slab is the primary factor that determines how long the new concrete will last.
Get as much of it off the concrete as you can.
When wouldn t i want to pour new concrete over old concrete.
Pour the acid mixture over the old concrete.
Pour the mixture directly from the bucket or use a plastic sprinkler can to distribute it over the old concrete.
Pour the resurfacing concrete over your old concrete.
Pouring concrete over old concrete instead of directly over a new gravel foundation limits your ability to maximize the slab s lifespan.
Cleaning old concrete surface.
Water soaks into the concrete freezes.
This includes removing sand dead leaves and gravel.
One of the best tools that can be clean all the debris out of crack is a stiff bristle broom.
Pouring new concrete s.
If done properly new concrete can often be poured right over an existing slab.
For instance if concrete stairs are not the correct size are too small or are different sizes you can pour new concrete over them instead of redoing the entire structure.
Concrete steps break up especially in northern climates.
A well poured concrete slab with a deep sturdy foundation can last for 30 to 40 years.
You can alter small exterior concrete steps extending from a patio or directly from a home.
The fix will be durable and you avoid the high expense of a complete tear out.
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.
Cutting away the damaged concrete and pouring a new concrete cap on the step can often repair badly broken concrete steps.
Sweeping dirt s debris over the existing concrete slab will allow bonding to take place.
The old concrete needs to be completely clean or else anything you pour over it won t bond to it.
Steps involved in pouring concrete over existing concrete slab step 1.
Finishing after pouring the finishing concrete smooth it out with a finishing trowel or a long handled industrial squeegee.