TRB’s National Cooperative Highway Research Program (NCHRP) Report 669: Models for Predicting Reflection Cracking of Hot-Mix Asphalt Overlays explores mechanistic-based models for predicting the extent and severity of reflection cracking in hot-mix asphalt overlays.
Appendices A through T to NCHRP Report 669 are available online. The titles of the appendices are as follows:
Appendix A: Program Flow Charts
Appendix B: Pavement Temperature Prediction
Appendix C: Categorization of Traffic Loads
Appendix D: Cumulative Axle Load Distribution as a Function of Tire Footprint Length
Appendix E: Determination of Hourly Traffic Numbers
Appendix F: Artificial Neural Network Models of Stress Intensity Factors
Appendix G: Binder and Mixture Properties
Appendix H: Fracture Properties of Asphalt Mixtures
Appendix I: Viscoelastic Thermal Stress Computation
Appendix J: Collection of Test Sections and Field Performance Data
Appendix K: Reflection Cracking Amount and Severity Model
Appendix L: Calibration of the Reflection Cracking Amount and Severity Model
Appendix M: Calibrated Parameters of the Reflection Cracking Amount and Severity Model
Appendix N: Calibration of the Computational Model to Field Data
Appendix O: User’s Guide to the Reflection Cracking Model
Appendix P: User’s Guide to the Computational Model to Field Data Calibration Program
Appendix Q: Finite Element Program to Calculate Stress Intensity Factor
Appendix R: Evaluation of Available Reflection Cracking Models
Appendix S: Sensitivity Analysis of Designing Program
Appendix T: The Comparison of Field Data and Predicting Results
This Summary Last Modified On: 3/23/2016