There are several major problems with a concrete floor that can be fixed by making repairs:

Pothole repair

When repairing potholes in a concrete layer, first create rectangular incisions around the perimeter of the pothole with a depth of no more than 2 cm. Then the old coating and damaged concrete are removed, and then debris and dust are removed. Then the concrete surface is covered with a primer, and the recess is filled with a special mixture of cement, sand and water. After that, the surface is leveled using a rule or rail. After that, a reinforcing mesh is laid on top to strengthen the repair. When the mixture is dry, its surface is rubbed with a sander to get a smooth and smooth surface. If necessary, the surface can be painted.

Unevenness correction

errors in the mortar laying technology can lead to unevenness on the concrete floor, which is one of the types of defects that reduce the strength of the structure. To eliminate such irregularities, a milling device is used. The process begins by creating depressions in the lower floor level, which are then sanded. After removing the dust, the site is reinforced with a primer.

Crack restoration

To prevent further expansion and protect against dust and moisture, cracks in the concrete floor must be repaired. To do this, you can use the method of embroidery, which includes creating even cuts with a grinder, cleaning from debris and dust, treating with a priming compound and filling with a special material. For long cracks on the concrete surface, metal brackets can be used. To do this, create incisions with a certain pitch and depth, install reinforcement elements and make concreting with a repair mixture until it completely hardens. After that, the surface is processed and sanded to the level of the entire surface.

Repair of concrete foundation joints

One of the ways to correct tightness damage and joint failures involves expanding the problem area with a diamond disc, removing debris and flaking areas. Then an epoxy primer is applied to the inner side of the joint, the joint is filled with a solution of cement and polymer. Along the length of the seam, marks are set using a special marker-rod, observing a step of at least three meters. After solidification of the repair compound, the joints are ground, the previously fixed markers-rods are taken out and a new expansion joint is cut through there. Finally, the resulting dust is removed from the joint and sealed with a silicone sealant.

Decontamination

with frequent and intensive use of concrete surfaces, a large amount of cement dust can occur, which is harmful to human health and can damage the integrity of the floor, which leads to its destruction. The only way to solve such problems is to repair the surface.

To reduce the amount of dust on the surface, you can apply paints or a special solution like a self-leveling floor, which cover problem areas. The solution penetrates 0.5 cm deep into the screed and acts as a barrier against dust. Such materials are resistant to chemicals and increase the strength of the material. In addition, the use of such tools allows you to protect the surface from negative temperature influences.

Restoration of floor screed

If it is necessary to repair the floor screed, the methods of repair work depend on the type of defect. The most common screed problems are chipping, cracking, peeling, and hidden voids. To identify voids, the method of knocking a metal rod on the floor is used — a dull sound will be made on the broken sections of the screed when tapping. If the area of damage exceeds 30%, the screed must be completely replaced. If the damaged area is smaller, then restoration is possible.