STUDIES ON REPAIR METHODS FOR CONCRETE PAVEMENTS ACCORDING TO THE TYPE OF DAMAGE

Abstract

 In order to realize high durability and long life of cocrete pavements, proper maintenance is necessary. In this study, specific repair materials and methods were proposed for various types of damage to concrete pavements, and the physical properties of the various repair materials were examined in laboratory tests, the effectiveness of the newly proposed local replacement method was verified in analytically, and the long-term durability was examined on full-scale specimens under running load of a load truck. As a result, it was confirmed that all the repair material studied in this research can be sufficiently applied as repair materials for concrete pavements by using epoxy adhesives to ensure the integrity with the existing concrete. The newly proposed localized replacement method was confirmed to be more effective in reducing vertical displacement and strain than the existing method through analytical investigation. Furthermore, full-scale specimen tests confirmed that the proposed method maintained generally good serviceability even after 850, 000 wheel loadings of 49 kN equivalent.