Laboratory Evaluation on Interlayer Shear Bonding and Characterization of Microsurfacings

Initiated by research on microsurfacings conducted in the Task Group TG 2 of International Union Laboratories and Experts Construction Materials, Systems Structures RILEM TC-280 CBE, “Multiphase Characterisation Cold Bitumen Emulsion Materials,” interlayer shear bonding asphalt concrete layers was investigated laboratory. The paper presents test results at Swiss Federal for Materials science Technology, Empa, thus analyzing influence bitumen emulsion aggregate type strength as well material surface condition underlying layer. showed that not only type, but also combination greatly influences workability, behavior, bond microsurfacings. Additionally, curing time characteristic bottom layer should be neglected.