Low Temperature Performance of Sasobit-Modified Warm-Mix Asphalt
Publication: Journal of Materials in Civil Engineering
Volume 24, Issue 1
Abstract
In the summer of 2008, a field trial project using Sasobit-modified warm-mix asphalt (WMA) was established in Alaska, which was Alaska’s first experience with a WMA technology. Previous studies conducted by writers identified a number of engineering benefits of Sasobit-modified WMAs over conventional hot-mix asphalt (HMA). This paper presents a further assessment focusing on low temperature performance of both Sasobit-modified WMA binders and mixes. A series of binder tests including bending beam rheometer (BBR), direct tension test (DTT), and asphalt binder cracking device (ABCD) tests were conducted. Indirect tension tests (IDT) of mixtures along with a thermal cracking analysis were performed to obtain a more definitive answer regarding the WMA application for cold-weather conditions. Results showed a decrease of tensile strength for both WMA binders and mixtures at low temperatures, and the cracking temperatures of both WMA binders and mixtures increased with the increase of Sasobit content. However, the increase in cracking temperature was very slight, which indicated that Sasobit addition had an insignificant effect on resistance to low temperature cracking. Therefore, Sasobit-modified WMA should be suitable for the Northern Region of the Alaska Department of Transportation and Public Facilities (AKDOT&PF) without compromising the resistance to low temperature cracking.
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References
ARA, Inc. (2000). “Guide for mechanistic-empirical design of new and rehabilitated pavement structures, Appendix HH: Field calibration of the thermal cracking model.” NCHRP Rep. No. A-37A, Transportation Research Board, Washington, DC.
Button, J. W., Estakhri, C., and Wimsatt, A. (2007). “A synthesis of warm-mix asphalt.” Rep. FHWA/TX-07/0-5597-1, Texas Transportation Institute, College Station, TX.
Christensen, R. M. (1982). Theory of viscoelasticity, 2nd Ed., Academic, New York.
D’Angelo, J., et al. (2008). “Warm-mix asphalt: European practice.” Rep. FHWA-PL-08-007, American Trade Initiatives, Alexandria, VA.
Damm, K.-W., Abraham, J., Butz, T., Hildebrand, G., and Riebeschl, G. (2002). “Asphalt flow improvers as ‘intelligent fillers’ for hot asphalts—A new chapter in asphalt technology.” J. Appl. Asphalt Binder Technol., 2(1), 36–69.
Diefenderfer, S. D., and Hearon, A. J. (2010). “Performance of Virginia’s warm-mix asphalt trial sections.” Research No. FHWA/VTRC10-R17, Virginia Transportation Research Council, Charlottesville, VA.
Edwards, Y., Tasdemir, Y., and Isacsson, U. (2006). “Rheological effects of commercial waxes and polyphosphoric acid in bitumen 160/220—Low temperature performance.” Fuel, 85(7–8), 989–997.
Fortier, R., and Vinson, T. S. (1998). “Low-temperature cracking and aging performance of modified asphalt concrete specimens.” Transportation Research Record 1630, Transportation Research Board, Washington, DC, 77–86.
Gandhi, T., and Amirkhanian, S. (2008). “Laboratory simulation of warm mix asphalt (WMA) binder aging characteristics.” Proc., 2008 Airfield and Highway Pavement Specialty Conf., J. R. Roesler, H. U. Bahia, I. L. Al-Qadi, and S. D. Murrell, eds., Transportation and Development Institute, Bellevue, WA, 195–204.
Goh, S. W., and You, Z. (2008). “Warm mix asphalt using Sasobit: Field and laboratory experience.” Proc., 2008 Mid-Continent Transportation Forum, Univ. of Wisconsin, Madison, WI.
Hills, J. F., and Brien, D. (1966). “The fracture of bitumens and asphalt mixes by temperature induced stresses.” Prepared Discussion. Proc., Association of Asphalt Paving Technologists, 35, 292–309.
Huang, Y. H. (2004). Pavement analysis and design, Pearson Education, Upper Saddle River, NJ.
Hurley, G. C., and Prowell, B. D. (2005). “Evaluation of Sasobit for use in warm mix asphalt.” NCAT Rep. 05-06, National Center for Asphalt Technology, Auburn, AL.
Hurley, G. C., and Prowell, B. D. (2006). “Evaluation of evotherm for use in warm mix asphalt.” NCAT Rep. 06-02, National Center for Asphalt Technology, Auburn, AL.
Hurley, G. C., Prowell, B. D., and Kvasnak, A. (2009). “Ohio field trial of warm mix asphalt technologies: Construction summary.” Final Rep. 09-04, National Center for Asphalt Technology, Auburn, AL.
Kim, S. (2005). “Direct measure of asphalt binder thermal cracking.” J. Mater. Civ. Eng., 17(6), 632–639.
Kim, S. (2010). “Asphalt binder cracking device to reduce low temperature asphalt pavement cracking.” Final project Rep., Highways for LIFE Technology Partnership Program, Washington, DC.
Kristjansdottir, O. (2006). “Warm mix asphalt for cold weather paving.” M.S. thesis, Univ. of Washington, Seattle.
Kvasnak, A., West, R., Moore, J., Nelson, J., Turner, P., and Tran, N. (2009). “Case study of warm mix asphalt moisture susceptibility in Birmingham.” 88th TRB Annual Meeting, Transportation Research Board, Washington, DC.
Leaderman, H. (1958). “Viscoelasticity phenomena in amorphous high polymeric systems.” Rheology, II, F. R. Eirich, ed., Academic, New York.
Liu, J., Saboundjian, S., Li, P., Connor, B., and Brunette, B. (2011). “Laboratory evaluation of Sasobit-modified warm mix asphalt for Alaskan Conditions.” J. Mater. Civ. Eng., 23(11), 1498–1505.
Marasteanu, M., et al. (2007). “Investigation of low temperature cracking in asphalt pavements.” Rep. No. MN/RC 2007-43, Univ. of Minnesota, Minneapolis.
Osterkamp, T. E., Baker, G. C., Hamer, B. T., Gosink, J. P., Peterson, J. K., and Gruol, V. (1986). “Transverse cracks in asphalt pavements in interior Alaska.” Final Rep., Univ. of Alaska, Fairbanks, AK.
Perkins, S. (2009). “Synthesis of warm mix asphalt paving strategies for use in Montana highway construction.” Rep. FHWA/MT-09-009/8117-38, Western Transportation Institute, Helena, MT.
Prowell, B. D., Hurley, G. C., and Crews, E. (2007). “Field performance of warm mix asphalt at the NCAT test tack.” 86th TRB Annual Meeting, Transportation Research Board, Washington, DC.
Raad, L., Saboundjian, S., Sebaaly, P., Epps, J., Camilli, B., and Bush, D. (1997). “Low temperature cracking of modified AC mixes in Alaska.” Rep. No. INE/TRC 97.05, Univ. of Alaska Fairbanks, AK.
Roque, R., and Lopp, G. (2006). “Fracture performance of mixtures modified with Sasobit.” Final Rep. submitted to Sasol Wax Company, Univ. of Florida, Gainesville, FL.
Saboundjian, S., Liu, J., Li, P., and Brunette, B. (2011). “Late season paving of a low-volume road using warm-mix asphalt: An Alaskan experience.” Transportation Research Record 2205, Transportation Research Board, Washington, DC, 40–47.
Sargand, S., Figueroa, J. L., Edwards, W., and Al-Rawashdeh, A. S. (2009). “Performance assessment of warm mix asphalt (WMA) pavements.” Rep. FHWA/OH-2009/08, Ohio Research Institute for Transportation and the Environment, Athens, OH.
Soules, T. F., Busbey, R. F., Rekhson, S. M., Markovsky, A., and Burke, M. A. (1987). “Finite element calculation of stress in glass parts undergoing viscous relaxation.” J. Am. Ceram. Soc., 70(2), 90–95.
Stroup-Gardiner, M., Newcomb, D., and Desombre, R. (1996). “Characterizing properties of asphalt cement at cold temperatures.” Transportation Research Record 1545, Transportation Research Board, Washington, DC, 59–66.
Wasiuddin, N. M., Selvamohan, S., Zaman, M. M., and Guegan, M. (2007). “A comparative laboratory study of Sasobit and Aspha-Min in warm mix asphalt.” 86th TRB Annual Meeting, Transportation Research Board, Washington, DC.
Wasiuddin, N. M., Zaman, M. M., and O’Rear, E. A. (2008). “Effect of Sasobit and Asppha-Min on wettability and adhesion between asphalt binders and aggregates.” Transportation Research Record 2051, Transportation Research Board, Washington, DC, 80–89.
Xiao, F., Jordan, J., and Amirkhanian, S. (2009). “Laboratory investigation of moisture damage in warm mix asphalt containing moist aggregate.” Transportation Research Record 2126, Transportation Research Board, Washington, DC, 115–124.
Zubeck, H. K., Zeng, H., Vinson, T. S., and Janoo, V. C. (1996). “Fieldvalidation of thermal stress restrained specimen test: Six case histories.” Transportation Research Record 1545, Transportation Research Board, Washington, DC, 67–74.
Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 24 • Issue 1 • January 2012
Pages: 57 - 63
Copyright
© 2012 American Society of Civil Engineers.
History
Received: Oct 29, 2010
Accepted: Jun 17, 2011
Published online: Dec 15, 2011
Published in print: Jan 1, 2012
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