A Quick Rehabilitation Technique for the Accidental Damage of the Epoxy Asphalt Concrete Pavement

In order to quickly rehabilitate the accidental damage of the asphalt concrete wearing course of steel bridge deck,to prevent it become the start point of the pavement damage,a quick rehabilitation material was presented and evaluated.The repair material and technique of the accidental damage on the steel deck pavement was firstly introduced.Secondly,the accident damages were simulated and repaired in the laboratory.After that,a three point bending beam test and the wheel tracking test were employed to assess the strength and the deformation resistance of the repaired specimens.The test results showed that the strength of the repaired beams is not less than that of the original beams,and the deformation of the 8 h-cured specimen after the wheel load for 1 h was only 0.813 mm,and the dynamic stability of the specimen was 8 300 cycle/mm,indicating a good deformation resistance.At last,the rehabilitation technique was successfully applied to the accidental damage on the wearing course of a long span steel bridge deck.