Concrete solution to corroded steel

A team from the Institute for the Environment, Physical Sciences and Applied Mathematics at

has developed a technique to identify corroded steel within concrete by non-destructive means.

Reinforced concrete can suffer dangerous and potentially catastrophic deterioration when the reinforcing steel becomes corroded, making regular assessment critical. Commercial techniques currently available involve invasive procedures including damaging the concrete or provide indirect evidence of corrosion.

The new hybrid technology developed by the Keele team has the potential to replace these invasive and less conclusive methods. The concrete survey and repair industries are already said to be showing considerable interest.

The amount of civil infrastructure in Europe using reinforced concrete, such as motorways, car parks and large buildings, creates a potential market of approximately £100 million. An even larger market is available if heritage buildings are included as often only non-destructive testing methods are permitted.

The Keele team, led by Professor Peter Haycock, is working in collaboration with Dr Steve Hoon from Manchester Metropolitan University.