Concrete Slab Repair

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Concrete Slab Repair 2016-12-12T11:22:40+00:00

A Concrete Slabs Joints are Often the Greatest Source of Maintenance Problems in Warehouse or Industrial Floors!

Floor Joints are in fact controlled cracks in concrete slabs. They should be designed and positioned to allow the floor to move without restraining that movement. Early life drying shrinkage and long term thermal changes are the main causes of concrete floor joint movement.

Floor Joints are designed and positioned to allow movement in concrete floors, without restraining that movement as that could lead to random cracking. Joint sealant should be rigid enough to provide support and protection to the concrete arrisses but it must also accommodate the anticipated movement in the floor whilst remaining bonded to at least one face of the joint.

Our Service – We will pay particular attention to:

  • Expansion, Contraction, Construction or Induced concrete floor joint failure
  • Surface breakdown or delamination
  • Shrinkage cracking – plastic / drying / thermal / structural
  • Choice of Concrete Slab Repair Materials

To find out more about joint repair, contact us!
Photograph A shows a typical floor joint that has been neglected and is now in urgent need of repair.
Floor Joint Problem A
Photograph B shows what typically happens to DIY/emergency floor joint fix repairs – they fail…quickly.
Photograph C shows how far some floor joints can open and what happens to the joint sealant if it is not regularly replaced.
Floor Joint problem C
Photos D & E are examples of the most common floor joint problems CG Flooring Systems Ltd are asked to repair.
Floor Joint problem E




Floor Joint Reseal Repair

Most warehouse and industrial floors will have joints with spalled edges and this should be seen as an early indication of more serious potential long term damage. The floor joint edges, or arrisses, are vulnerable to damage and tend to ‘spall’ under the impact from hard wheeled traffic.

“Floor Joint edge spalling never gets better with neglect – it always gets worse.”
CG Flooring Systems’ floor joint sealant, CoGri Rapid Seal; is rigid enough to provide support and protection to the concrete arrisses, but also flexible enough to accommodate any opening of the joint and still remain bonded to at least one face of the concrete slabs.
joint reseal
Using the Floor Joint re-seal method in conjunction with CoGri Rapid Seal we can reduce or even prevent further edge spalling. However, this relatively simple repair process can only be utilised if the edge damage is detected at an early stage. If more serious damage has already occurred we would need to re-construct the floor joint ‘arrisses’ by using the Floor Joint Arris Repair method.

Floor Joint Arris Repair

The size and cost of floor joint repairs can be kept to a minimum if the damage is detected and repaired at an early stage. Regular inspections should be made to check that the existing joint sealant is doing its job to protect and maintain the floor joint arrisses. Once the damage has been allowed to progress beyond the scope of re-sealing the joint, it will be necessary to re-construct the arrisses.

CG Flooring Systems heavy duty repair mortar; CoGri Rapid Mender, is specifically intended for use on industrial floor to repair floor joint arris damage quickly and with minimum disruption to the ongoing operation.
Wide joints increase the risk of arris spalling due to the deflection of the joint sealant under load. It is therefore important to reduce the width of the joint opening at surface level. Our tried and tested floor joint arris repair solution allows a 50mm wide ‘traditional expansion joint’ to be replaced with a neat 5mm wide, fully sealed saw cut. Each of our floor joint repairs are ground smooth and flush with the adjacent floor surface to ensure that wheeled traffic has a smooth transition over the repaired joint.
Joint arris image
Our repair processes have been specifically developed for use in operational, fully stocked warehouses. We use highly efficient vacuum systems to ensure that there will be no airborne dust created, so there is no need to remove or protect your stock