How do you pour concrete on top of old concrete?

Use wooden braces or reinforcing mesh to place it over existing concrete. Use a concrete bonding agent to spread over existing slabs to help form a bond between the old and new concrete layer.

How do you pour concrete on top of old concrete?

Use wooden braces or reinforcing mesh to place it over existing concrete. Use a concrete bonding agent to spread over existing slabs to help form a bond between the old and new concrete layer. Pour over the new concrete to the desired thickness and level the surface with a trowel. The simple answer is YES, you can pour new concrete over existing concrete.

If you can't find a conclusive answer to those questions, then it's probably better to remove the old concrete and find out why it settled or crumbled, and then fix that problem so that it doesn't do it again. I had to tilt the new concrete away from the house because the old concrete was leaning towards the house. For this to be feasible, the contractor needs to pour at least 2 inches thick, use smaller aggregates, and incorporate reinforcements such as welded wire mesh or mixed fiber into the concrete. Pouring on existing concrete exposed to vehicle traffic is also being done in highway projects, driveways and parking lots.

If you pour something thinner than 1.5 inches, you won't have enough cement paste on and around the aggregate to get strong concrete. When considering the thickness you want new concrete to have, it is important to consider the environment where the concrete will be. However, unsolved problems with old concrete, such as cracks or frost, will be transferred to new concrete if not fixed. Finish the work by priming the surface and pouring a mixture onto it, giving the concrete base a new, fresh layer.

Skeptics do not recognize that pouring on the surface of solid concrete is no different from pouring on a super-compact stone base. In each of these situations, you need to remove the old concrete, solve the existing problem, how to remove roots from trees, and proceed with new concrete. Although it is possible to bond new concrete to old concrete, it is important to do it the right way to prevent any cracks or gaps from fixing too quickly. Pouring new concrete over existing slabs is simple and effective, provided that the existing slab is in good condition.

You can pour new concrete over existing slabs in the case of floor slabs, provided you do it correctly. Learn more about this later. To prevent the newly laid concrete from early wear, a protective layer is applied by using a curing compound and sprayed all over the surface, which usually takes seven days to cure. However, if your concrete is relatively solid and increasing its elevation by a few centimeters would not create problems, then you can pour new concrete directly on top of the old one.

Brock Cottew
Brock Cottew

Certified pop culture enthusiast. Award-winning troublemaker. Incurable food lover. Hipster-friendly tv geek. Subtly charming travelaholic. Incurable pop culture enthusiast.

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