Asphalt binders experience aging that occurs in two distinct stages under quite different conditions: (1) short-term during construction (plant mixing, storage, placement, and compaction) and (2) long-term during the service life of the pavement.
The TRB National Cooperative Highway Research Program's NCHRP Research Report 967: Asphalt Binder Aging Methods to Accurately Reflect Mixture Aging documents research conducted to improve laboratory binder conditioning methods to accurately simulate the short-term and long-term aging of asphalt binders, and to calibrate the improved procedures to the aging that occurs during mixture production, transport, and placement as well as during the service life of the pavement structure.
Table of Contents
|Chapter 1 - Background||5-6|
|Chapter 2 - Research Approach||7-154|
|Chapter 3 - Findings and Application||155-165|
|Chapter 4 - Conclusions and Recommendations||166-170|
|Appendix A - Proposed Appendix X1 to AASHTO R 28, Modifications for 0.8 mm Thin Film Conditioning (12.5 g Binder Mass) and Commentary||173-192|
|Appendix B - Proposed AASHTO Practice, 0.8 mm Static Film Short- and Long-Term Conditioning of Asphalt Binder and Commentary||193-220|
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