They can be used over pre cast concrete planks wood subfloors in multifamily housing and on slabs on grade in single family homes.
Self leveling concrete over old concrete.
The overlay can be left seamless except at control joints or used as a canvas for sawcut or engraved designs.
Mark the intended height for the new concrete.
The installation of this systems results in a highly durable smooth colorful and polished concrete surface.
Self leveling concrete can be installed directly over a sound concrete substrate.
Thick accumulations powdery brittle or otherwise weak adhesive layers must be removed.
Self leveling concrete is a cementitious mixture much like concrete.
Pouring a new layer of concrete over an existing walkway patio or porch will raise the level by several inches.
Before installing the self leveling concrete the installation contractor should ensure that the sub floor is properly prepared.
But unlike concrete it flows easier and sets up much faster.
The product is mixed with water pumped or poured into place and spread evenly with a gauge rake.
How to pour a leveling layer of concrete over the existing uneven old concrete floor step 1.
Pour concrete etching acid over the surface and spread it with a shop broom.
If you re working inside snap a chalk line around the walls.
If the slab runs up to a door the raised surface may not provide the necessary clearance for the door to open.
The following steps are recommended for resurfacing cutback adhesives and carpet glues with a self leveling concrete param 5500.
Self leveling concreteunderlayments are used to rehabilitate old floors that are out of level.