Concrete floors can be susceptible to settling and cracking over time and this is a more frequent problem when an existing structural slab has adapted to a finished residential flooring surface such as when a basement or loft condo has been converted to living space.
How to floor concrete.
Mix it until it is the consistency of a thick pancake batter.
Concrete blocks are then laid horizontally between the joists resting on the lips and level with the top of the joists.
The citric acid will help open the top pores of the concrete so the epoxy adheres well.
Concrete joists with lips on either side about halfway up are placed on the floor.
To resurface an uneven concrete slab begin by laying a long straight 2x4 wooden rail across the concrete slab floor with one end positioned on the high point in the room.
Then apply scrub and squeegee off the floor in the same manner as the degreaser.
Mix the concrete according to the directions with a mixing bit on a heavy duty drill image 1.
Slip shims under the low end of the 2x4 rail until it s perfectly level then use a scribing tool to transfer the unevenness of the floor onto the rail.
Insulation is then put down underneath the screed or in some cases timber sheets.
Over time concrete floors can settle unevenly or become uneven due to cracking and moisture.
If the board leans or has gaps in certain spots then you can see where the floor is uneven.
Pour the fresh concrete over the floor then go over it with a 1 4 gauge rake to bring it level image 2.
The concrete was poured over the toilet collar flange and will be cut out later.
Whether you want to refinish an uneven basement floor or replace or add new flooring on top of an existing concrete floor somewhere in your home you most likely will need to level the concrete floor.
Mix the citric acid concrete etch with warm water per the instructions.