Concrete floor slab crack repair service

Cracks in a concrete floor can be caused by accidental impacts, deterioration of the concrete, intense use of the area or even the movement of the floor itself.

We provide professional service throughout the UK and Europe.

Eliminating cracks and fissures from concrete flooring

It’s very common for cracks and fissures to appear in concrete floors which are submitted to usual work operations within the industrial and commercial sectors, over the course of time.

At BECOSAN® we are accustomed to dealing with these problems. We offer an optimal solution to repair cracks and fissures in industrial concrete floors and with our subsequent polishing treatment that hardens and seals the floor, avoiding future crack problems.

Likewise, to avoid these events, it is essential to proceed with the repair of cracks and fissures as soon as they are detected.

Repair works on small cracks (S-cracks) consist of a full-length cleaning and filling with BECOSAN® J+C Repair Kit. All other cracks must be cut vertically before filling with BECOSAN® Repair Kit. J+C.

Cracks In Concrete Floors
Extra Long Crack In Floor Fixed
BECOSAN® offers specialized technical solutions

Consult with one of our technicians to discuss the details and find solutions.

SOLUTIONS

Types of cracks and fissures we fix

Depending on the size of the crack, BECOSAN® assigns a typology to them, which face different problems.

Repair works for S-Cracks consist in cleaning on their whole length and filling with BECOSAN® J+C Repair Kit. All other cracks need to be cut vertically prior to the filling with BECOSAN® J+C Repair Kit.

S Crack Repair On Industrial Concrete Floor, Crack Width Under 2mm

S-Crack

Minor crack (<2mm) that can be straight, curved or zigzag-shaped. It needs
to be repaired to prevent crumbling, which generally converts an S-Crack into an L-Crack.

L Crack Repair On Industrial Concrete Floor, Crack Width 2 To 9mm

L-Crack

Medium sized crack (2-9mm) that can be straight, curved or zigzag- shaped. It needs to be repaired as the existing crumbling will lead into a detachment of concrete parts within the crack. The consequence will be major damage of the surface due to concrete spalling.

Xl Crack Structural Repair On Industrial Concrete Floor

XL-Crack

Large crack that usually appears close to contraction or construction joints. It needs to be repaired as otherwise it

Will difficult or even make impossible traffic of forklifts, AGV’s, etc. It will lead into severe surface erosion of the surface and considerable damage of the concrete floor will be the consequence.

Xxl Crack Repair On Industrial Warehouse Floor, Crack Width Over 30mm

XXL-Crack

Very large crack (30mm) as a consequence of a not timely repaired XL-Crack to prevent further surface damage. These areas are very dangerous as they can cause heavy accidents. Areas with XXL-Cracks should not be used at all in warehouse or logistics operations

Why crack repair cannot be postponed

Left untreated, cracks tend to widen under continued forklift and vehicle traffic, increasing the risk of spalling and creating unplanned maintenance costs. Early repair keeps the floor operational without requiring a full slab replacement.
Projects

Crack repair projects in the UK

BECOSAN® has carried out crack repair work on concrete floors in warehouses and industrial facilities of all sizes, ranging from structural cracks caused by heavy forklift traffic to shrinkage cracks in freshly poured slabs and damage resulting from years of intensive industrial use.

In all cases, crack repair formed part of our comprehensive concrete floor refurbishment programme, which restored the integrity of the slab prior to diamond disc grinding and the application of the patented BECOSAN® treatment.

Below are examples of crack repair work carried out on industrial flooring projects across the UK.

BIZSPACE (UK)
Scope: 200 linear metres of crack repair and 600 linear metres of expansion joint repair Solution delivered: BECOSAN® repaired structural cracks and resealed expansion joints across the warehouse floor, addressing joint edge deterioration and crack propagation typically caused by sustained forklift and industrial traffic. Result: The repair works restored the continuity of the concrete slab, reducing the risk of further edge damage and supporting continued operational use of the facility.
GREENLIGHT (Southampton, UK)
Floor area: 1,500 m² Challenge: The project started as a localised floor repair. Once the real condition of the concrete slab was assessed, the scope was extended to a full intervention. Among the issues identified were structural cracks across the slab that needed to be repaired before the floor could receive the BECOSAN® treatment. Solution delivered: BECOSAN® repaired 100 linear metres of cracks across the concrete slab, restoring structural continuity ahead of the surface treatment. This work was carried out as part of a wider floor refurbishment project, which also included joint resealing, surface grinding and other localised repairs. Result: The crack repair work removed a key source of surface weakness and edge deterioration, contributing to a stronger, more uniform floor. The full project, from initial assessment to completed treatment, was delivered over 16 weeks.
FAQ

FAQ: Concrete floor slab crack repair

Before deciding on a repair solution for your cracks it is important to understand why the cracks are there in the first place.

Cracks are mainly caused by:

  • Insufficient depth of the concrete to support loads.
  • Cracks in underlying layers of the concrete.
  • Subsoil with low load bearing capacity.
  • Inadequate drainage.
  • Faults in the construction process.
  • Absence of adequate fibres.

Repairing cracks in concrete floors is a laborious and complicated job.

Even so, at BECOSAN®, we know that this is no reason to stop a client from carrying out their work; and therefore, we adapt to it promptly. We work by zones and in the hours required to not paralyze the company’s production.

In the case of interconnected cracks, there is a risk of spalling. That is, pieces of concrete can detach from the flooring, creating holes and leaving the concrete aggregate exposed.

Therefore, spalling is the next step after the cracks, as these begin to deteriorate mainly due to vehicle circulation.

The treatment of this type of damage is slightly similar, but due to its complexity, it requires eliminating the entire damaged area. Once this is done, it is possible to prepare the area where a sanding, polishing, and hardening treatment will subsequently be applied.

It consists of rebuilding the pavement, eliminating the loose material, and replacing it with a new one with improved characteristics.

Once we are aware of the problem, we will proceed to repair cracks in the concrete floors by milling, cleaning, and sealing.

These tasks are part of the set of renovation activities, through which superficial flooring problems are solved.

We start by milling the cracks or fissures and subsequently cleaning them. Next, concrete cracks are sealed with a resin component for interiors or polyurea for exteriors.

Sealing cracks in concrete floors avoids water and any other external substance to penetrate the concrete, thus helping to maintain its support capacity.

Structural crack repair in the UK typically falls under BS EN 1504-5, the British and European standard covering the injection and filling of cracks, voids and interstices in concrete. Unlike patch repair, which replaces missing concrete, crack repair works with the existing slab, sealing and restoring continuity without adding new concrete. When comparing repair proposals, ask your contractor which method and product category they are applying and request the Declaration of Performance for the product used.

BECOSAN® only uses original, first quality material for crack repair. The BECOSAN® J+C Repair Kit is a two-component epoxy resin filler with reduced viscosity, some flexibility and no solvents, with a cycloaliphatic hardener. It prevents crumbling once cured and provides high sealing performance with strong penetration into the capillaries and porosity of the substrate. It can be pigmented to match the surrounding floor. Recommended for interior use only.

Full technical documentation, including material specification and test data, is available on request for facility managers and contractors evaluating this repair method.

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