U.S. Department of Transportation
Federal Highway Administration
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Washington, DC 20590
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Federal Highway Administration Research and Technology
Coordinating, Developing, and Delivering Highway Transportation Innovations
Report |
This report is an archived publication and may contain dated technical, contact, and link information |
Publication Number: FHWA-HRT-21-093 Date: January 2022 |
Publication Number: FHWA-HRT-21-093 Date: January 2022 |
PDF Version (26.46 MB)
1. Report No. FHWA-HRT-21-093 |
2. Government Accession No. | 3. Recipient’s Catalog No. | ||||
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4. Title and Subtitle Hot-Mix Asphalt Performance Related Specification Based on Viscoelastoplastic Continuum Damage (VEPCD) Models |
5. Report Date January 2022 |
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6. Performing Organization Code | ||||||
7. Author(s) Y. Richard Kim (ORCID: 0000-0003-3295-977X), M.N. Guddati, Yeong-Tae Choi, Dahae Kim, Amirhossein Norouzi, Yizhuang David Wang, Behrooz Keshavarzi, Morteza Ashouri, Amir Ghanbari, Andrew D. Wargo, B. Shane Underwood |
8. Performing Organization Report No. |
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9. Performing Organization Name and Address North Carolina State University Department of Civil, Construction, and Environmental Engineering Campus Box 7908 Raleigh, NC 27695 |
10. Work Unit No. | |||||
11. Contract or Grant No. DTFH61-08-H-00005 |
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12. Sponsoring Agency Name and Address Office of Research and Technology Services Federal Highway Administration 6300 Georgetown Pike McLean, VA 22101 |
13. Type of Report and Period Covered Final Report; February 2008–December 2020 |
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14. Sponsoring Agency Code HRDI-20 |
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15. Supplementary Notes Kathrine Petros (HRDI-20; ORCID: 0000-0002-1253-0813) served as the Contracting Officer's Representative. |
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16. Abstract This report develops and verifies material and structural models for asphalt mixture performance-related specifications (AM-PRS). The models the research team developed and verified in this study include the simplified viscoelastic continuum damage (S-VECD) model for fatigue cracking, the shift model as a permanent deformation model, the healing model based on the viscoelastic continuum damage (VECD) theory, and a structural model called the FlexPAVETM program.(94,119) The FlexPAVE program simulates pavement response and performance under moving loads and climatic changes in the field. In this study, the research team tested and modeled a total of 60 asphalt mixtures from 47 different pavement structures to calibrate and validate the performance models and software. The FlexMAT program processed the laboratory data to determine material properties of these mixes, which the research team then input to the FlexPAVE program with section-specific structure, traffic, and climatic conditions to predict the performance of the 47 asphalt pavements studied. The research team found that the FlexPAVE program can predict field performance with reasonable accuracy. Although not included in the FlexMAT program, efforts from this study resulted in the development of a healing model based on the VECD theory and the impact resonance test method that provides an efficient and inexpensive means of determining the dynamic modulus of asphalt concrete. |
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17. Key Words Performance-related specification, fatigue, rutting, healing, viscoelastic, continuum damage, transfer function, FlexMAT, FlexPAVE, impact resonance |
18. Distribution Statement No restrictions. This document is available to the public through the National Technical Information Service, Springfield, VA 22161. http://www.ntis.gov |
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19. Security Classif. (of this report) Unclassified |
20. Security Classif. (of this page) Unclassified |
21. No. of Pages 418 |
22. Price N/A |
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Form DOT F 1700.7 (8-72) | Reproduction of completed pages authorized. |