Using standard repair methods on recycled aggregate concrete Available to Purchase

Research into concrete repair techniques, repair mortars and test practices is extensive. However, there is scant information on the repair of concrete made with recycled aggregates. This paper reports the results of an experimental programme aiming to assess the suitability of traditional repair methods for more modern, sustainable concretes such as those containing recycled aggregates. The experimental programme consisted of three stages. The first stage was to deteriorate and damage concrete specimens containing different types of recycled aggregates. In the second stage, the deteriorated and damaged concrete specimens containing different recycled aggregates were repaired using traditional repair techniques. Finally, the mechanical properties of the repaired specimens as well as the bond between the substrate and the repair materials were assessed in the third stage. Test results proved that concretes made with recycled aggregates could be successfully repaired to form monolithic elements, which act compositely and exhibit properties close to the original non-deteriorated specimen.