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Concrete Repair


When manufactured to the correct specification, reinforced concrete is an extremely durable construction material. However, most of us will be aware of so-called ‘concrete cancer’ and other forms of damage to concrete. The most common causes of concrete damage are:

  • Carbonation caused by CO2
  • De-icing salts
  • Insufficient steel cover
  • Poor concrete quality
A damaged concrete wall showing exposed galvanised welded wire 'cage'.

How to Repair and Protect Concrete

The Vandex Concrete Repair System provides a systematic procedure for concrete repair. The system consists primarily of cementitious materials which are homogeneous with concrete (strength, modulus of elasticity, thermal movement).

1 Carefully remove unsound concrete and expose reinforcing steel completely.
2 Remove rust and clean the reinforcement steel by sandblasting or other suitable mechanical methods.
3 If available, use highest water-pressure technology and remove unsound concrete completely. Remove rust and clean.
4 Stop further corrosion by applying Vandex Uni Mortar 1 Z that has been mixed using Vandex Anti-Sulphate Agent.
5 Rebuild concrete using Vandex Cemline MG4 repair mortar. For horizontal surfaces, Vandex Cemrep 202 can be used.
6 Apply surface protection using Vandex Cemelast.

A variation of this system, incorporating Drybase Universal Mortar as a repair mortar, can be used when repairing concrete in swimming pools. Please contact our technical department on 01403 210204 or submit an enquiry for further details.

Get it Done

BrickFix CE1 Grout (3 Litre) BrickFix CE1 Grout is a high performance, non-shrink grout for fixing BrickFix Helical Bar into masonry - e.g. for masonry crack repairs.
£53.33
BrickFix Neoprene Tie Fixing Tool BrickFix mechanical wall ties are designed to replace or supplement existing cavity wall ties.
£8.40
BrickFix Masonry Crack Stitching Kit The Brickfix Crack Stitching System offers a fast and cost-effective solution for crack repair in masonry walls.
£190.00
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