Simple Performance Tester for Superpave Mix Design
Advanced Asphalt Technologies, LLC
The objectives of this research were to (1) design, procure, and evaluate simple performance testers for use in Superpave mix design and in HMA materials characterization for pavement structural design and (2) evaluate and refine the indirect tensile test (IDT) procedures proposed for use as the simple performance test for low-temperature cracking and as the materials characterization test for low-temperature cracking in the Mechanistic-Empirical Pavement Design Guide developed in NCHRP Project 1-37A.
The simple performance tester developed in this project is now available from several commercial sources as the Asphalt Mixture Performance Tester (AMPT).
A final report of the first-article SPT procurement and evaluation (Phase II of the project) has been published as NCHRP Report 513: Simple Performance Tester for Superpave Mix Design: First-Article Development and Evaluation.
The final report for Phase III has been published as NCHRP Report 530: Evaluation of Indirect Tensile Test (IDT) Procedures for Low-Temperature Performance of Hot Mix Asphalt.