The durability of reinforced concrete can be significantly improved by concrete protection through application of appropriate surface coatings and treatments to reduce or prevent the ingress of deleterious substances such as carbon dioxide, chlorides and water. These can be used to provide protection to the concrete itself and the steel reinforcement. Typical treatments include acrylic coatings, surface applied corrosion inhibitors and hydrophobic impregnations.
Sikagard-706 Thixo was applied at Otahuhu Bus Train Interchange.
Tuakau Bridge – MaxBuild applied Sikagard-550 Elastic.
- University of Auckland B402 for Argon Construction – a hydrophobic impregnation, Sikagard-740W, was applied over repaired and reprofiled concrete to enhance the durability
- Multi-storey car park in Great South Road, Auckland – a hydrophobic impregnation, Sikagard-706 Thixo, was applied to enhance the durability of trafficked exposed reinforced concrete car park decks
- Otahuhu Bus Train Interchange – a hydrophobic impregnation, Sikagard-706 Thixo, was applied to enhance the durability of a reinforced concrete building
- Tuakau Bridge – a crack bridging coating, Sikagard-550 Elastic, was applied over the structure to prevent the ingress of chlorides and carbon dioxide and to improve the appearance