Concrete Slab Over Concrete Slab

Cleaning old concrete surface.

Concrete slab over concrete slab. Pour concrete onto the existing slab until it is around where you want the final level to be. Engineer if you are laying pouring concrete over existing concrete there needs to be a bond. This includes removing sand dead leaves and gravel. Sweeping dirt s debris over the existing concrete slab will allow bonding to take place.

The condition of the existing slab is the primary factor that determines how long the new concrete will last. Concreteoverconcrete fixgaragefloor mikedayconcrete in this video i ll show you how to pour a new concrete slab over an existing concrete slab. A concrete slab is a common structural element of modern buildings consisting of a flat horizontal surface made of cast concrete. Apply the new concrete over the primer.

Make sure you have enough concrete to fill the entire area to the depth you desire. Steel reinforced slabs typically between 100 and 500 mm thick are most often used to construct floors and ceilings while thinner mud slabs may be used for exterior paving see below in many domestic and industrial buildings a thick concrete slab supported on. When i say bond the concrete you are lying on top off needs to be a rough finish like scabbled. Concrete over concrete by.

A well poured concrete slab with a deep sturdy foundation can last for 30 to 40 years. Pouring concrete over old concrete instead of directly over a new gravel foundation limits your ability to maximize the slab s lifespan. Add all of the concrete right away so none of the mixture has a chance to dry out.