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Suggested Citation:"References." National Academies of Sciences, Engineering, and Medicine. 2019. Field Verification of Proposed Changes to the AASHTO R 30 Procedures for Laboratory Conditioning of Asphalt Mixtures. Washington, DC: The National Academies Press. doi: 10.17226/25608.
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33 References Bell, C.A., A.J. Wieder, and M.J. Fellin (1994). SHRP Report A-390: Laboratory Aging of Asphalt-Aggregate Mixtures: Field Validation. Strategic Highway Research Program, National Research Council, Washington, D.C. Chipperfield, E.H., and T.R. Welch (1967). Studies on the Relation- ships between the Properties of Road Bitumens and Their Service Performance. In Proceedings of the Association of Asphalt Paving Technologists Annual Meeting, Vol. 36, pp. 421–488. Daniel, J.S., T. Bennert, Y.R. Kim, and W. Mogawer (2014). TPF 5(230): Evaluation of Plant Produced RAP Mixtures in the Northeast. Pooled Fund Phase I Interim Report, Federal Highway Administra- tion, Washington, D.C. Epps Martin, A., E. Arambula, F. Yin, L. Garcia Cucalon, A. Chowdhury, R. Lytton, J. Epps, C. Estakhri, and E.S. Park (2014). NCHRP Report 763: Evaluation of the Moisture Susceptibility of WMA Tech- nologies. Transportation Research Board of the National Academies, Washington, D.C. Epps Martin, A., E. Arambula, F. Yin, and E.S. Park (2016). NCHRP Report 817: Validation of Guidelines for Evaluating the Moisture Susceptibility of WMA Technologies. Transportation Research Board of the National Academies, Washington, D.C. Heithaus, J.J., and R.W. Johnson (1958). A Microviscometer Study of Road Asphalt Hardening in the Field and Laboratory. In Proceedings of the Association of Asphalt Paving Technologists Annual Meeting, Vol. 27, pp. 17–34. Lund, J.W., and J.E. Wilson (1984). Evaluation of Asphalt Aging in Hot Mix Plants. In Proceedings of the Association of Asphalt Paving Technologists Annual Meeting, Vol. 53, pp. 1–18. Lund, J.W., and J.E. Wilson (1986). Field Validation of Asphalt Aging in Hot Mix Plants. In Proceedings of the Association of Asphalt Paving Technologists Annual Meeting, Vol. 55, pp. 92–119. Mirza, M.W., and M.W. Witczak (1995). Development of a Global Aging System for Short and Long Term Aging of Asphalt Cements. Journal of the Association of Asphalt Paving Technologists, Vol. 64, pp. 393–430. Mogawer, W., T. Bennert, J.S. Daniel, R. Bonaquist, A. Austerman, and A. Booshehrian (2012). Performance Characteristics of Plant Produced High RAP Mixtures. Journal of the Association of Asphalt Paving Technologists, Vol. 80, pp. 403–439. Morian, N., E.Y. Hajj, C.J. Glover, and P. Sebaaly (2011). Oxidative Aging of Asphalt Binders in Hot-Mix Asphalt Mixtures. Trans- portation Research Record: Journal of the Transportation Research Board, No. 2207, pp. 107–116. Newcomb, D., A. Epps Martin, F. Yin, E. Arambula, E.S. Park, A. Chowdhury, R. Brown, C. Rodezno, N. Tran, E. Coleri, D. Jones, J.T. Harvey, and J.M. Signore (2015). NCHRP Report 815: Short- Term Laboratory Conditioning of Asphalt Mixtures. Transportation Research Board, Washington, D.C. Rashwan, M.H., and R.C. Williams (2011). An Evaluation of WMA Additives and RAP on Performance Properties of Asphalt Mixtures. Presented at 91st Annual Meeting of the Transportation Research Board, Washington, D.C. Rondon, H.A., F.A. Reyes, G.W. Flintsch, and D.E. Mogrovejo (2012). Environmental Effects on Hot Mix Asphalt Dynamic Mechanical Properties—A Case Study in Bogota, Colombia. Presented at 91st Annual Meeting of the Transportation Research Board, Washington, D.C. Safaei, F., J. Lee, L.A. Nascimento, C. Hintz, and R.Y. Kim (2014). Impli- cations of Warm-Mix Asphalt on Long-Term Oxidative Ageing and Fatigue Performance of Asphalt Binders and Mixtures. Road Materials and Pavement Design, Vol. 15, pp. 45–61. Tarbox, S., and J. Sias Daniel (2012). Effects of Long-Term Oven Aging on RAP Mixtures. Transportation Research Record: Journal of the Transportation Research Board, No. 1504, pp. 1–15. Topal, A., and B. Sengoz (2008). Effect of SBS Polymer Modified Bitumen on the Ageing Properties of Asphalt. In Proceedings of the 4th Eurasphalt and Eurobitume Congress. Copenhagen, Denmark, May 21–23. Traxler, R.N. (1961). Relation between Asphalt Composition and Hardening by Volatization and Oxidation. In Proceedings of the Association of Asphalt Paving Technologists Annual Meeting, Vol. 27, pp. 359–377. West, R., C. Rodezno, G. Julian, B. Prowell, B. Frank, L. Osborn, and T. Kriech (2014). NCHRP Report 779: Field Performance of Warm Mix Asphalt Technologies. Transportation Research Board of the National Academies, Washington, D.C. Zhang, W., S. Shen, S. Wu, and L.N. Mohammad (2017). Long-Term Field Aging of Warm-Mix and Hot-Mix Asphalt Binders. Trans- portation Research Record: Journal of the Transportation Research Board, No. 2632, pp. 140–149. Zhao, D., M. Lei, and Z. Yao (2009). Evaluation of Polymer-Modified Hot-Mix Asphalt: Laboratory Characterization. Journal of Materials in Civil Engineering, Vol. 21, No. 4, pp. 163–170. Zhou, F., S. Im, L. Sun, and T. Scullion (2017). Development of an IDEAL Cracking Test for Asphalt Mix Design and QC/QA. Road Materials and Pavement Design, Vol. 18, Issue sup4, pp. 405–427.

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Field Verification of Proposed Changes to the AASHTO R 30 Procedures for Laboratory Conditioning of Asphalt Mixtures Get This Book
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Laboratory conditioning of asphalt mixtures during the mix design process to simulate their short-term aging influences the selection of the optimum asphalt content. In addition, long-term conditioning affects the mixture and binder stiffness, deformation, and strength evaluated with fundamental characterization tests to assess mixture performance. The current standard conditioning procedure, AASHTO R 30, Standard Practice for Mixture Conditioning of Hot-Mix Asphalt, was developed over two decades ago.

In reviewing whether to update the standard, TRB’s National Cooperative Highway Research Program (NCHRP) Research Report 919: Field Verification of Proposed Changes to the AASHTO R 30 Procedures for Laboratory Conditioning of Asphalt Mixtures seeks to (a) develop a laboratory short-term aging protocol to simulate the aging and asphalt absorption of an asphalt mixture during production and transportation based on factors thought to affect aging, and (b) develop a laboratory longer-term aging protocol to simulate the aging of the asphalt mixtures after construction.

The key outcome of the research is that the current long-term oven aging (LTOA) procedure in AASHTO R 30 is not realistic. Replacing the aging of a compacted specimen with aging of loose mix for 5 days at 85°C (185°F) before compaction for testing should be considered by the AASHTO Committee on Materials and Pavements.

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