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2026 Vol.16, Issue 1 Preview Page
Low temperature performance evaluation of various asphalt materials by means of IDT testing approach
Ki Hoon Moon1*
1Principal Researcher, Korea Expressway Corporation Research Division
*Corresponding Author
30 June 2026. pp. 79-85
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Abstract

Low temperature cracking is one of the serious asphalt pavement distresses. When temperature in pavement layer drops dramatically, thermal stress starts developing. Then the temperature in pavement layer reaches to significant level, finally the low temperature cracking happens. To evaluate the effect thermal cracking on asphalt pavement layer, computation of thermal stress is essential. This thermal stress can be computed by means of simple performance mechanical test called: low temperature creep testing approach. In this test, creep stiffness can be measured then computed. Then thermal stress can be computed with some mathematical computation process along with numerical analysis procedure. Two testing methods: BBR(Bending Beam Rheometer) and IDT(Indirect Tensile) mixture creep test, can be used for measuring creep stiffness at low temperature condition widely. The BBR method is relatively cheaper and easier for testing work compared to the conventional IDT method. However, the feasibility of applying BBR test as an alternative is still questionable. In this paper, the low temperature performance of various asphalt mixtures was evaluated by means of IDT approach. It is found that thermal stress value can be used for successful alternatives for measuring low temperature performance of asphalt material.

Keywords
Thermal stress
Low temperature cracking
Bending beam rheometer (BBR) test
Indirect tensile (IDT) test
Low temperature performance evaluation
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

Basu, A. (2002). An evaluation of the Time-Temperature Equivalence Factor and of the Physical hardening Effects on Low-Temperature asphalt binder specifications, M.S. Thesis, University of Minnesota, Minnesota Twin Cities, United States.

5

Hopkins, I.L. and Hamming, R.W. (1957). “On creep and relaxation”, Journal of Applied Physics, 28(906), pp. 906-909.

10.1063/1.1722885
6

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.

7

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.

8

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.

9

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 :79-85
  • Received Date : 2026-06-10
  • Revised Date : 2026-06-22
  • Accepted Date : 2026-06-25
  • DOI :https://doi.org/10.22702/jkai.2026.16.1.7
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