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The Different Stages of Concrete Repairs

Mar 23 2017

All buildings will require renovation works to keep them safe for those in and around the site over time – concrete repairs restore heritage buildings and ensure safety.

Concrete repairs come in sizes big and small; sometimes only minor maintenance works are required to restore a building to its former glory, and other times high-risk structural damages require urgent attention. Listed buildings require the proper permission to begin renovation works – as long as any maintenance does not dramatically change the exterior of the site, there should be no issues in obtaining approval.

Identifying the Issue

Before any concrete repairs can be carried out, a thorough inspection of the building must take place in order to identify the root cause and any difficulties that could present themselves during the renovation process.

Damaged structures, resulting in falling concrete, are a hazard that requires immediate attention. In this case, Concrete Renovations will carry out an inspection to make a diagnosis – this will tell whether patch concrete repairs are suitable and indicate whether a specialised solution is required for the project.

Carbonation induced corrosion is a common diagnosis made in the case of cracked segments of concrete, as well as chloride induced corrosion which may require extra precautions are taken due to the strain of the steelwork. This can be achieved by using sacrificial anodes or Migrating Corrosion Inhibitor creams.

Repair Works

Concrete Renovation carried out concrete repairs on the University of Kent, which showed signs of the carbonation process which is synonymous with a building from its era. Hammer sounding tests were carried out to determine the extent of the defect.

Concrete surfaces were then Doff Cleaned and defective concrete was removed before corroded steelwork was cleaned and Betofix R2 and Rust Inhibitor M were applied. Staircases were grit blasted and given an application of Migrating Corrosion Inhibitor until the surface was saturated.

Following this process, anti-carbonation coating was applied to the concrete frame and panel surfaces, as well as the staircase receiving an application of concrete acrylic.

Concrete Repair Specialists

After renovation works have been carried out, the building will have been restored to its original state with any safety issues addressed. In keeping with the guidelines of any renovation works to listed buildings, Concrete Renovations blend in any concrete repairs and structural work to match the building’s original colour and texture.

If you would like more information on the process of identifying and carrying out concrete repairs, please call the Concrete Renovations team on 01733 560362 or email us at

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