NCHRP Project 9-29, “Simple Performance Tester for Superpave Mix Design,” is a multiphase to develop a practical, economical simple performance tester (SPT) for use in routine hot-mix asphalt (HMA) mix design and in the characterization of HMA materials for pavement structural design with the Mechanistic-Empirical Pavement Design Guide (MEPDG). In the phase of the project reported here, ruggedness testing was conducted with the SPT for the dynamic modulus and flow number tests developed in NCHRP Project 9-19 as simple performance tests for permanent deformation. Thus, the report will be of particular interest to materials and pavement structural design engineers in state highway agencies, as well as to materials suppliers. (Author/publisher)
Samenvatting