How to repair a concrete floor

Complex of works on local surface repair

Concrete floors are a reliable base for warehouses, production halls and other industrial facilities. However, constant loads, vibrations and exposure to aggressive media lead to the formation of cracks, potholes and deformations. Timely repair of concrete floors not only extends their service life, but also prevents accidents and downtime. In this article we will tell you how to repair a concrete floor, what materials to use and what to pay attention to when making an estimate

Concrete floor

The main problems of concrete floors

It is important to determine the type of damage before beginning repairs:

Cracks - occur due to concrete shrinkage or overloading
Gouges are the result of impact or abrasion of the surface
Screed deterioration - delamination of the top layer, dusting
Joint deformation - failure of expansion or temperature joints
Corrosion - characteristic of floors exposed to chemical influences

Concrete floor repair

Repair technology: stages and methods

1. Diagnosis and preparation

Remove weak areas, clean dust and dirt from the surface
Widen cracks and potholes for better adhesion of materials
Remove old sealant and debris to repair concrete floor joints

2. Selection of materials

Concrete floor repair compounds: quick-drying cement-based or epoxy-based compounds. For example, epoxy resin is suitable for repairing cracks and creating a wear-resistant coating
Joint compounds: polyurethane or silicone sealants
For major repairs, use high-strength mixtures capable of withstanding loads up to 50 MPa

3. application of materials

Fill cracks and potholes with repair compound, compacting the mixture with a trowel
To repair a concrete floor screed, apply leveling mortar
When restoring expansion joints, lay sealant and sealing profiles

4. Finishing treatment

Sand the surface to remove irregularities
Apply a protective coating (e.g. topping or polymer varnish) to increase wear resistance

Features of the repair

Peculiarities of repair in different conditions

In the warehouse: concrete floor repair in the warehouse requires accelerated time - use quick-setting mixes
Outdoors: choose frost and water repellent compounds for outdoor work
In industrial areas: take into account the specific loads (chemicals, vibrations, humidity)

Expansion of expansion joints — Repair of expansion joints in the warehouse

Cost of concrete floor repair

How to make an estimate for concrete floor repair

The estimate for concrete floor repair is formed on the basis of the scope of work, the extent of damage and the materials used. When calculating, it is important to take into account the following parameters:

Materials. Repair compounds are considered depending on the type of damage - cracks, potholes, worn screed, etc.
Equipment. If necessary, rental of specialized equipment is included - for example, grinders, industrial vacuum cleaner, milling machines, etc.
Labor costs. Determined based on the complexity of the work and the number of specialists in the team. Usually a team of several people works on a project
Additional costs. Possible costs for removal of construction waste, delivery of materials, preparatory and finishing work

The exact estimate is made after inspection of the object and diagnostics of the pavement condition.

Comparison of repair types

Major vs local repairs

Local - suitable for small defects (cracks, potholes).
Major - required when there is severe wear and tear. It includes milling of the old layer, reinforcement and pouring of a new screed.

You can learn more about concrete floor repair at this article.

Parking lot of Odinburg Residential Complex — Healing process of expansion joints

Concrete potholes filled with epoxy resin — Process of localized repair of deformed pavement

Main points

Concrete floor repair achieves

Increases pavement durability and reduces repair costs

Simplifies maintenance and care of the coating

Improves working conditions and meets safety standards

Reduces the risk of slips and injuries on site

If you are looking for ways to reduce costs in the construction and operation of your facilities, contact the tConcrete team

We look forward to receiving your application. You can share your resume, portfolio and cover letter at hr@tconcrete.ru or send your project to hello@tconcrete.ru