Mechanical and Fracture-Mechanical Properties of Asphalt-Concrete Interfaces

The authors focus on crack resistance and bond behavior assessment and testing in regard to asphalt-concrete interfaces tested at different temperatures, necessary for, with so-called whitetopping technology, rutted asphalt pavement rehabilitation. Different interface pretreatments were performed: using only synthetic dispersion, using a synthetic dispersion and cement grout combination, or using cement grout. Determination of mechanical and fracture mechanical properties were done through the wedge splitting test and the pullout test at temperatures of 22, 10, 0, and -10° C (71.6, 50, 32, and 14° F).