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2026 Vol.16, Issue 1 Preview Page
Comparison of low temperature creep performances of various asphalt mixtures by means of statistical comparison approach
Ki Hoon Moon1*
,
Duk Su Sohn2
,
Sung Jin Hong3
1Principal Researcher, Korea Expressway Corporation Research Division
2Research Fellow, Korea Expressway Corporation Research Division
3Ph.D. Candidate, Department of Transportation Engineering, Myongji Universit
*Corresponding Author
30 June 2026. pp. 43-52
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Abstract

Low temperature cracking is a crucial distress in asphalt pavements built especially in Northern U.S. and Canada. As temperature drops, thermal stress starts developing in the restrained asphalt pavement layer. If the temperature in pavement layer reaches to critical temperature level, finally low temperature cracking happens. The thermal stress can be computed by means of simple experimental approaches named: Bending Beam Rheometer (BBR) and In-Direct Tensile (IDT) mixture creep tests. In both experimental activities, the creep stiffness: S(t), and corresponding m-value can be simply computed. These two mechanical factors provide significant role in thermal stress computation procedure. In this paper, statistical and graphical analyses are performed to compare low temperature creep stiffness and corresponding m-value from various asphalt mixtures. It is found that BBR mixture testing method: a cheaper and easier testing approach compared to conventional IDT mixture testing method, can be a successful alternative for measuring low temperature properties of given asphalt mixtures.

Keywords
Thermal stress
Low temperature cracking
Indirect tensile test (IDT)
Bending beam rheometer (BBR) test
Statistical comparison
References
1

American Association of State Highway and Transportation Officials (AASHTO) (2025). AASHTOWare Pavement official design guide. AASHTO, Washington D.C., United States.

2

American Association of State Highway and Transportation Officials (AASHTO) (2003). Standard Method of Test for Determining the Creep Compliance and Strength of Hot-Mix Asphalt (HMA) Using the Indirect Tensile Test Device, Designation: T 322-03, Standard Specifications for Transportation Materials and Methods of Sampling and Testing, Part 2B: Tests, 22nd Edition, Washington, D.C.

3

American Association of State Highway and Transportation Officials (AASHTO) (2005). Standard Method of Test for Determining the Flexural Creep Stiffness of Asphalt Binder Using the Bending Beam Rheometer (BBR), Standard: T 313-05, Standard Specifications for Transportation Materials and Methods of Sampling and Testing, 25th Edition, Washington, D.C.

4

Anderson, D.A. and Kennedy, T. (1993). “Development of SHRP binder specification”, Proceedings of the Association of Asphalt Paving Technologies, AAPT Publications, pp. 481-507.

5

Johnson, A., Clyne, T.R. and Worel, J.B. (2009). 2008 MnROAD Phase II Construction Report, Final Report, Minnesota Department of Transportation, Minnesota Twin Cities, United States.

6

Marasteanu, M.O., Velasquez, R., Zofka, A. and Cannone Falchetto, A. (2009). Development of a simple test to determine the low temperature creep compliance of asphalt mixtures, NCHRP IDEA Report 133, AASHTO publications, Washington D.C., United States.

7

Moon, K.H. (2010). Comparison of Thermal Stresses Calculated from Asphalt Binder and Asphalt Mixture Creep Compliance Data, M.S. Thesis, University of Minnesota, Minnesota Twin Cities, United States.

8

Moon, K.H. (2012). Investigation of asphalt binder and asphalt mixture low temperature properties using analogical models, Ph.D. Thesis, University of Minnesota, Minnesota Twin Cities, United States.

Information
  • Publisher :KOREAN ASPHALT INSTITUTE
  • Publisher(Ko) :한국아스팔트학회
  • Journal Title :Journal of the Korean Asphalt Institute
  • Journal Title(Ko) :한국아스팔트학회지
  • Volume : 16
  • No :1
  • Pages :43-52
  • Received Date : 2026-06-05
  • Revised Date : 2026-06-19
  • Accepted Date : 2026-06-24
  • DOI :https://doi.org/10.22702/jkai.2026.16.1.4
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