TRB’s National Cooperative Highway Research Program (NCHRP) Report 704: A Performance-Related Specification for Hot-Mixed Asphalt provides a proposed performance-related specification (PRS) for hot-mix asphalt (HMA) in the form of the Microsoft Windows®-based Quality-Related Specification Software (QRSS). The QRSS is a stand-alone program for Microsoft Windows (versions XP and 7) that employs a database of pre-solved solutions of the Mechanistic-Empirical Pavement Design Guide. The program is capable of (1) calculating the predicted rutting, fatigue cracking, and low-temperature (thermal) cracking of an HMA pavement from the mix volumetric and binder and aggregate properties of the as-designed HMA (typically the job mix formula) and (2) comparing them with predictions calculated from the contractor’s lot or sub-lot quality assurance data for the same properties. The following are available for download: • Microsoft Windows®-based Quality-Related Specification Software • A Manual of Practice: HMA Quality Assurance Spreadsheet Program Using Measured Values of E* and D • Program Instillation Instructions. The following appendixes to the report are available for download on the project website (http://apps.trb.org/cmsfeed/TRBNetProjectDisplay.asp?ProjectID=958). • APPENDIX A: Raw Data for Permanent Deformation Model Analysis • APPENDIX B: Raw Data for Fatigue Cracking Model Analysis • APPENDIX C: Summary of Results for Level 3 Creep Compliance Predictive Equations • APPENDIX D: Hardening Ratio Database • APPENDIX E: QRSS User’s Manual. (Author/publisher)
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