Concrete Pour Over Existing Slab Forum

It was originally poured in multiple sections so it had some seams that looked like cracks.

Concrete pour over existing slab forum.

Sweeping dirt s debris over the existing concrete slab will allow bonding to take place. About to start a complete 600 sq. Cleaning old concrete surface. Unfortunately the footings and slab were a monolithic pour so chipping out the existing slab and replacing it is a no go.

The old concrete was over 20 years old. In the video below i poured a new stamped concrete patio slab right over the old existing concrete. Steps involved in pouring concrete over existing concrete slab step 1. One of the best tools that can be clean all the debris out of crack is a stiff bristle broom.

Use a 6x6 10x10 welded reinforcing wire in the new concrete to help prevent. The existing slab is actually in decent shape for the age it s just uneven has no insulation and ugly. This includes removing sand dead leaves and gravel. You can easily pour over the existing concrete but please don t use fibermesh concrete.

Here s the catch if the existing surface is somewhat in a structurally sound shape and elevating its height to a few inches won t be a problem you can certainly freshen it up with a new layer of concrete. I ve had the misfortune of having to remove far too much of it pouring concrete over existing concrete house remodeling decorating construction energy use kitchen bathroom bedroom building rooms page 2 city data forum. How to pour concrete over existing concrete. Being the old slab is in pretty good condition you can pour directly over the old slab with 4 5 of new concrete.