Relationship between Uniaxial Thermal Stress and Strain Test (UTSST) parameters and field cracking data of asphalt mixtures from MnROAD test experiment

Establishing relationships between the results of laboratory mechanical tests and field performance of the asphalt concrete layer is a necessary step prior to the test implementation at the mix design stage or during production. The objective of this study is to confirm the relationship between the Uniaxial Thermal Stress and Strain Test (UTSST) results and measured field cracking data for test sections at the Minnesota Road Research Project (MnROAD). The interpretation of UTSST results, conducted on reheated plant specimens, highlights the considerable effect observed for the asphalt binder grade on performance; whereas the long-term aging data set suggests a dominant effect of the amount of recycled materials in the mixture. Several UTSST parameters resulted in robust relationships with the mix Bending Beam Rheometer (BBR) and Semi-Circular Bending (SCB) test parameters, including the UTSST cracking resistance index (CRIEnv) with the mix BBR strain at failure. The UTSST parameters exhibited the most significant correlations with load and non-load field cracking data. Some of the prominent relationships observed corresponding to the shoulder cracking data with the UTSST glassy temperature and $\Delta T_{mix}^{UTSST}$?TmixUTSST, suggest an improved resistance to non-load related cracking due to a delayed transition of the asphalt mixture to the glassy stage.

• Record URL:
  • https://doi.org/10.1080/10298436.2023.2276156
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/44544515
• Supplemental Notes:
  • © 2023 Informa UK Limited, trading as Taylor & Francis Group 2023. Abstract reprinted with permission of Taylor & Francis.
• Authors:
  • Elias, Nicole G.
  • Hajj, Elie Y.
  • Sebaaly, Peter E.
  • Morian, Nathan
  • Vrtis, Michael
• Publication Date: 2023

Language

• English

Media Info

• Media Type: Web
• Features: References;
• Pagination: 2276156
• Serial:
  • International Journal of Pavement Engineering
  • Volume: 24
  • Issue Number: 2
  • Publisher: Taylor & Francis
  • ISSN: 1029-8436
  • Serial URL: http://www.tandf.co.uk/journals/titles/10298436.html

Subject/Index Terms

• TRT Terms: Asphalt mixtures; Cracking; Test sections; Thermal stresses
• Identifier Terms: Minnesota Road Research Project (MnROAD)
• Subject Areas: Highways; Materials; Pavements;

Filing Info

• Accession Number: 01910279
• Record Type: Publication
• Files: TRIS
• Created Date: Feb 28 2024 10:22AM