Pouring Concrete Floor Over Existing

You need to start with a clean surface and ensure a proper bond to create a new concrete surface that lasts.
Pouring concrete floor over existing. Pouring concrete over existing concrete sidewalk or patio surfaces is an option if the existing base is structurally sound. Make sure you have enough concrete to fill the entire area to the depth you desire. 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. Add all of the concrete right away so none of the mixture has a chance to dry out.
One of the best tools that can be clean all the debris out of crack is a stiff bristle broom. Cleaning old concrete surface. The same principles as above apply to pouring concrete over an existing concrete driveway or sidewalk. 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 old concrete instead of directly over a new gravel foundation limits your ability to maximize the slab s lifespan. A well poured concrete slab with a deep sturdy foundation can last for 30 to 40 years. That kind of equipment can really punish a concrete floor. 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. Pouring concrete over an existing concrete driveway or sidewalk. Pour concrete onto the existing slab until it is around where you want the final level to be. Apply the new concrete over the primer.
You can if the concrete is sound solid with minor cracks pitting scaling surface damage or just plain ugly. This includes removing sand dead leaves and gravel. They will consider the existing slab structurally sound and just pour the new slab as if they were pouring over a gravel base.