Concrete Over Concrete Patio

It is important you leave a cap of at least 30mm so the concrete can flow under the mesh.

Concrete over concrete patio. 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. You can if the concrete is sound solid with minor cracks pitting scaling surface damage or just plain ugly. Concreteoverconcrete pourconcreteoverexistingconcrete mikedayconcrete in this video i will show you how to pour a new concrete patio slab over an old exis. You could drill holes into the existing concrete surface and insert steel pins and then the mesh on top.

A commercial bonding agent helps with that. The key to successfully pouring concrete over an existing concrete surface is to ensure the two layers bond properly. Sweeping dirt s debris over the existing concrete slab will allow bonding to take place. Steps involved in pouring concrete over existing concrete slab step 1.

When it comes to curing wet hessian is to be placed on top of the concrete not too early though wait till you can get a steel float finish on it. They can even be applied to walls and other vertical surfaces. The sand layer that normally goes underneath a concrete slab is a cushion for the slab to settle over time. They are especially popular for refreshing the appearance of existing driveways patios walkways pool decks and floors.

Even though concrete is strong and forms a hard structure there s nothing in it that helps it stick to old concrete. All structures eventually settle into the ground beneath them and there are various methods that have been tested over the centuries and proven to be superior to others. To lay new concrete sweep and clean the old concrete and saturate the old concrete with water. Make sure the braces are level and lay down a barrier of wire mesh over the existing concrete inside of the barrier.

One of the best tools that can be clean all the debris out of crack is a stiff bristle broom. If done properly new concrete can often be poured right over an existing slab. Stamped concrete overlays can be used on new or existing concrete and on interior or exterior surfaces. Then build a perimeter or a wood brace that is the same height as you want the concrete to be.

You just have to consider the added height. The same principles as above apply to pouring concrete over an existing concrete driveway or sidewalk. Cleaning old concrete surface. Pouring a skim coat over the surface is exactly what your concrete needs.