Effect Evaluation of Treatment Technique for Cracking on Asphalt Steel Deck Surfacing

In order to evaluate the effect of the crack treatment on asphalt steel deck surfacing,laboratory beam fatigue tests are conducted.The fatigue performances of undamaged beams and treated beams are researched respectively,and the influence of the types of different notches on the fatigue property of treated beams is also studied.It can be seen that the flexural-tensile strength of treated beams differ slightly,but the fatigue life reduces dramatically compared to that of undamaged beams.The service performances of the whole-section repaired beams have predominance to the part-section repaired one.The 10 mm×10 mm,20 mm×10 mm type notches lead to better repairing effect.