Integrating the Dynamic Modulus of Asphalt Mixes in the 1993 AASHTO Design Method
Abstract
The AASHTO Guide for Design of Pavement Structures 1993 (1993 Design Guide) remains the most widely used pavement design manual by highway agencies and design consultants around the world. As defined in the 1993 Design Guide, the structural coefficient of a pavement layer (ai) is an abstract measure of the relative ability of a unit thickness of a given material to function as a structural component of the pavement. Nevertheless, the assumed ai values of the asphalt layers and a proposed relationship between ai and the resilient modulus do not account for the mechanical and physical properties of asphalt materials, traffic volume and speed, layer thicknesses (thin versus thick pavements), climate, and unbound layer properties. The purpose of this research was to enhance the design methodology incorporated in the 1993 Design Guide by integrating asphalt mixture properties in the design process. The objective was to devise a relationship between the structural coefficient (ai) of the asphalt layer and the effective dynamic modulus (|E*|eff.) of the corresponding asphalt mix to yield a more realistic estimate of the structural capacity of the asphalt layer. The paper illustrates the development of a multilinear relationship between ai, (|E*|eff.), and the resilient modulus of the aggregate base layer. Pavement structural designs for various asphalt mixes and design inputs using the developed ai–(|E*|eff.) relationship yielded asphalt layer thicknesses that were generally smaller than those obtained using the typical ai value of 0.44 for the asphalt layer and closer to thicknesses obtained with the AASHTO mechanistic–empirical design method using the Pavement ME software.
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References
1. Timm D. H., Robbins M. M., Tran N., and Rodezno C. Flexible Pavement Design—State of the Practice. National Center for Asphalt Technology, Auburn University, Auburn, Ala.; National Asphalt Pavement Association, Lanham, Md., 2014.
2. Galal K. A., and Chehab G. R. Considerations for Implementing the 2002 ME Design Procedure Using a HMA Rehabilitated Pavement Section in Indiana. Presented at 84th Annual Meeting of the Transportation Research Board, Washington, D.C., 2005.
3. Nantung T., Chehab G. R., Newbolds S., Galal K., Li S., and Kim D. H. Implementation Initiatives of the Mechanistic–Empirical Pavement Design Guides in Indiana. Transportation Research Record: Journal of the Transportation Research Board, No. 1919, 2005, pp. 142–151.
4. Galal K., and Chehab G. Implementing the Mechanistic–Empirical Design Guide Procedure for a Hot-Mix Asphalt–Rehabilitated Pavement in Indiana. Transportation Research Record: Journal of the Transportation Research Board, No. 1919, 2005, pp. 121–133. https://doi.org/10.3141/1919-03.
5. Olson R. Mechanistic–Empirical Pavement Design Guide in Indiana, Vol. 5. ACEC Indiana Short List, 2009.
6. Kim R., and Muthadi N. Implementation Plan for the New Mechanistic Empirical Pavement Design Guide. NCDOT Project 2005-28. North Carolina State University, Raleigh, 2007.
7. Fernando F. G., Oh J., and Ryu D. Phase I of MEPDG Program Implementation in Florida. Report D004491/PR15281-1. Texas Transportation Institute, College Station, 2007.
8. Schwartz C. Implementation of the NCHRP 1-37A Design Guide. Report SP0077B41. Department of Civil and Environmental Engineering, University of Maryland, College Park, 2007.
9. VDOT Preparation Plan for the Implementation of the Mechanistic–Empirical Guide for Design of New and Rehabilitated Pavement Structures. Virginia Department of Transportation, Richmond, 2007.
10. Cochran G., Funk N., Hoegh K., Khazanovich L., Marasteanu M., and Velasquez R. Implementation of the MEPDG for New and Rehabilitated Pavement Structures for Design of Concrete and Asphalt Pavements in Minnesota. Report MN/RC 2009-06. Minnesota Department of Transportation, Saint Paul, 2009.
11. Pierce L. New Pavement Design Guide. Washington State Department of Transportation, Olympia, 2007.
12. Williams C. R., Robinette C. J., Burano J., and Breakah T. Testing of Wisconsin Asphalt Mixtures for the Forthcoming AASHTO Mechanistic–Empirical Pavement Design Procedure. Report No. WHRP 07-06. Wisconsin Department of Transportation, Madison, 2007.
13. AASHTO Guide for Design of Pavement Structures 1993. AASHTO, Washington, D.C., 1993.
14. Li J., Uhlmeyer J. S., Mahoney J. P., and Muench S. T. Use of the 1993 AASHTO Guide, MEPDG and Historical Performance to Update the WSDOT Pavement Design Catalog. Washington State Department of Transportation, Olympia, 2011.
15. Khattab A. M., El-Badawy S. M., Hazmi A. A., and Elmwafi M. Evaluation of Witczak E* Predictive Models for the Implementation of AASHTOWare-Pavement ME Design in the Kingdom of Saudi Arabia. Construction and Building Materials, Vol. 64, 2014, pp. 360–369.
16. Sadek H. A., Masad E. A., Sirin O., Al-Khalid H., Sadeq M. A., and Little D. Implementation of Mechanistic–Empirical Pavement Analysis in the State of Qatar. International Journal of Pavement Engineering, Vol. 15, No. 6, 2014, pp. 495–511.
17. AASHO Road Test. HRB, National Research Council, Washington, D.C., 1962.
18. Peters-Davis K., and Timm D. H. Recalibration of the Asphalt Layer Coefficient. NCAT Report 09-03. National Center for Asphalt Technology, Auburn University, Auburn, Ala., 2009.
19. Pologruto M. Procedure for Use of Falling Weight Deflectometer to Determine AASHTO Layer Coefficients. Transportation Research Record: Journal of the Transportation Research Board, No. 1764, 2001, pp. 11–19.
20. Kim Y. R., Ranjithan S. R., Troxler J. D., and Xu B. NCHRP Research Results Digest 254: Assessing Pavement Layer Condition Using Deflection Data. NCHRP Project 10-48 final report. Transportation Research Board, Washington, D.C., June 2001.
21. MacGregor J. A. C., Highter W. H., and DeGroot D. J. Structural Numbers for Reclaimed Asphalt Pavement Base and Subbase Course Mixes. Transportation Research Record: Journal of the Transportation Research Board, No. 1687, 1999, pp. 22–28.
22. Bin-Shafique S., Edil T. B., Benson C. H., and Senol A. Incorporating a Fly-Ash Stabilised Layer into Pavement Design. Proceedings of ICE-Geotechnical Engineering, Vol. 157, No. 4, 2004, pp. 239–249. https://doi.org/10.1680/geng.2004.157.4.239.
23. Romanoschi S., Hossain M., Gisi A., and Heitzman M. Accelerated Pavement Testing Evaluation of the Structural Contribution of Full-Depth Reclamation Material Stabilized with Foamed Asphalt. Transportation Research Record: Journal of the Transportation Research Board, No. 1896, 2004, pp. 199–207. https://doi.org/10.3141/1886-20.
24. Misra A., Kumar S., Patel S., and Gustin F. Resilient Moduli and Structural Layer Coefficient of Flyash Stabilized Recycled Asphalt Base. World of Coal Ash (WOCA) Conference, Northern Kentucky, 2007, pp. 7–10.
25. Puppala A. J., Hoyos L. R., and Potturi A. K. Resilient Moduli Response of Moderately Cement-Treated Reclaimed Asphalt Pavement Aggregates. Journal of Materials in Civil Engineering, Vol. 23, No. 7, 2011, pp. 990–998. https://doi.org/10.1061/(ASCE)MT.1943-5533.0000268.
26. Qi X., Sebaaly P. E., and Epps J. A. Evaluation of Polymer-Modified Asphalt Concrete Mixtures. Journal of Materials in Civil Engineering, Vol. 7, No. 2, 1995, pp. 117–124. https://doi.org/10.1061/(ASCE)0899-1561(1995)7:2(117).
27. Hossain M., Habib A., and Latorella T. Structural Layer Coefficients of Crumb Rubber–Modified Asphalt Concrete Mixtures. Transportation Research Record, No. 1583, 1997, pp. 62–70.
28. Marquis B., Peabody D., Mallick R., and Soucie T. Determination of Structural Layer Coefficient for Roadway Recycling Using Foamed Asphalt. Recycled Materials Resource Center, Durham, N.H., 2003.
29. El-Basyouny M., and Jeong M. Effective Temperature for Analysis of Permanent Deformation and Fatigue Distress on Asphalt Mixtures. Transportation Research Record: Journal of the Transportation Research Board, No. 2127, 2009, pp. 155–163. https://doi.org/10.3141/2127-18.
30. El-Basyouny M., and Jeong M. G. Probabilistic Performance-Related Specifications Methodology Based on Mechanistic–Empirical Pavement Design Guide. Transportation Research Record: Journal of the Transportation Research Board, No. 2151, 2010, pp. 93–102. https://doi.org/10.3141/2151-12.
31. Jeong M. G. Manual of Practice HMA Quality Assurance Spreadsheet Program Using Measured Values of E* and D. Arizona State University, Tempe, 2010.
32. Hamdar Y., Kassem H., Srour I., and Chehab G. R. Performance-Based Specifications for Sustainable Pavements: A Lean Engineering Analysis. Energy Procedia, Vol. 74, 2015, pp. 453–461. https://doi.org/10.1016/j.egypro.2015.07.727.
33. Witczak M. W. Specification Criteria for Simple Performance Tests for Rutting. Transportation Research Board of the National Academies, Washington, D.C., 2007.
34. NCHRP Report 704: A Performance-Related Specification for Hot-Mixed Asphalt. Transportation Research Board of the National Academies, Washington, D.C., 2011.
35. Witczak M. W., El-Basyouny M., and Uzan J. NCHRP Web-Only Document 172: Adapting Specification Criteria for Simple Performance Tests to HMA Mix Design. Transportation Research Board of the National Academies, Washington, D.C., 2011.
36. Hassanieh D. Z. Use of Fine Recycled Concrete Aggregates in Asphalt Mixtures. American University of Beirut, Lebanon, 2014.
37. Daniel J. S., and Chehab G. R. Use of RAP Mixtures in Mechanistic–Empirical Pavement Design Guide. Presented at 87th Annual Meeting of the Transportation Research Board, Washington, D.C., 2008.
38. Daniel J. S., Chehab G. R., and Ayyala D. Sensitivity of RAP Binder Grade on Performance Predictions in the MEPDG. Journal of the Association of Asphalt Paving Technologists, Vol. 78, 2009, pp. 325–376.
39. Apeagyei A. K., and Diefenderfer S. D. Asphalt Material Design Inputs for Use with the Mechanistic–Empirical Pavement Design Guide. Final report VCTIR 12-R6. Virginia Center for Transportation Innovation and Research, Charlottesville, 2011.
40. RStudio: Integrated Development for R. RStudio, Inc., Boston, Mass. http://www.RStudio.com/ide, 2014.
41. Mechanistic–Empirical Pavement Design Guide, Interim Edition: A Manual of Practice. AASHTO, Washington, D.C., 2008.
42. Hamdar Y. Effective Incorporation of Asphalt Mixture Properties in the Structural Design of Asphalt Pavements as a Precursor for Implementing Performance-Based Design. American University of Beirut, Lebanon, 2016.
43. Carvalho R., and Schwartz C. Comparisons of Flexible Pavement Designs: AASHTO Empirical versus NCHRP Project 1-37A Mechanistic–Empirical. Transportation Research Record: Journal of the Transportation Research Board, No. 1947, 2006, pp. 167–174.
44. Chehab G. R., Kim Y. R., Schapery R. A., Witczak M. W., and Bonaquist R. Time-Temperature Superposition Principle for Asphalt Concrete with Growing Damage in Tension State. Journal of the Association of Asphalt Paving Technologists, Vol. 71, 2002, pp. 559–593.
45. Schwartz C. W., Li R., Kim S., Ceylan H., and Gopalakrishnan K. Sensitivity Evaluation of MEPDG Performance Prediction. NCHRP Project 1-47 final report. 2011.
46. El-Basyouny M. M., and Witczak M. W. Verification of the Calibrated Fatigue Cracking Models for the 2002 Design Guide. Journal of the Association of Asphalt Paving Technologists, Vol. 74, 2005, pp. 653–696.
47. Al-Omari B., and Darter M. I. Relationships Between International Roughness Index and Present Serviceability Rating. Transportation Research Record, No. 1435, 1994, pp. 130–136.
48. Gulen S., Woods R., Weaver J., and Anderson V. L. Correlation of Present Serviceability Ratings with International Roughness Index. Transportation Research Record, No. 1435, 1994, pp. 27–37.
49. Hall K., and Muñoz C. Estimation of Present Serviceability Index from International Roughness Index. Transportation Research Record: Journal of the Transportation Research Board, No. 1655, 1999, pp. 93–99. https://doi.org/10.3141/1655-13.
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Article first published online: January 1, 2017
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