Pouring Concrete Floor Over Existing

The same principles as above apply to pouring concrete over an existing concrete driveway or sidewalk. You can if the concrete is sound solid with minor cracks pitting scaling surface damage or just plain ugly. The condition of the existing slab is the primary factor that determines how long the new concrete will last.

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Pouring concrete over old concrete instead of directly over a new gravel foundation limits your ability to maximize the slab s lifespan.

Pouring concrete floor over existing.

Make sure you have enough concrete to fill the entire area to the depth you desire. It rolls or brushes on like paint very easy to install creates a bond between the old new concrete floors. Steps involved in pouring concrete over existing concrete slab step 1. They will consider the existing slab structurally sound and just pour the new slab as if they were pouring over a gravel base.

Pouring concrete over an existing concrete slab how to bond them together they always say rome was not built in one day and this was the place that changed the looks of architectural structures that we see today. Pouring concrete over an existing concrete driveway or sidewalk. Apply the new concrete over the primer. Sweeping dirt s debris over the existing concrete slab will allow bonding to take place.

This includes removing sand dead leaves and gravel. Add all of the concrete right away so none of the mixture has a chance to dry out. You need to start with a clean surface and ensure a proper bond to create a new concrete surface that lasts. One of the best tools that can be clean all the debris out of crack is a stiff bristle broom.

That kind of equipment can really punish a concrete floor. Pour concrete onto the existing slab until it is around where you want the final level to be. A well poured concrete slab with a deep sturdy foundation can last for 30 to 40 years. Cleaning old concrete surface.

When we pour concrete floors over existing concrete floors and the new floor is less than 3 inches thick we use a product called weld crete to bond the two floors together. Pouring concrete over existing concrete sidewalk or patio surfaces is an option if the existing base is structurally sound. However most contractor will simply come out and place a rebar mesh on small pedestals above the existing floor and then pour enough concrete to level the area and cover the rebar mesh.

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