Toward Understanding the Mechanical Performance of Cold-Mix Pavement: Investigating the Internal Structure of a Successful Swedish Case Study

Cold mix technology is a safe and an environmentally friendly alternative to hot mix or warm mix since the processes use less energy and fumes and emissions from hot bitumen are avoided. However, the mechanical performance of cold mix asphalt has not been studied in depth even though it has been used successfully for a number of years. In this paper, image based models developed from asphalt mixtures are analyzed to study the influence of the mixture morphology on mechanical performance of mixtures. To study the influence of the interfaces, a parametric study of the interface properties is done. This can thus be related to resulting aggregate-bitumen interface strength from the coalescence process. Furthermore, this paper is the first step towards building a framework which enables assessment of long term mechanical performance of cold mix pavements.

• Supplemental Notes:
  • This paper was sponsored by TRB committee AFK10 General Issues in Asphalt Technology. Alternate title: Towards Understanding the Mechanical Performance of Cold Mix Pavement: Investigating the Internal Structure of a Successful Swedish Case Study.
• Corporate Authors:

  Transportation Research Board

  500 Fifth Street, NW
  Washington, DC  United States  20001
• Authors:
  • Mellat, Peyman
  • Redelius, Per
  • Kringos, Nicole
• Conference:
  • Transportation Research Board 94th Annual Meeting
  • Location: Washington DC, United States
  • Date: 2015-1-11 to 2015-1-15
• Date: 2015

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; Photos; References; Tables;
• Pagination: 12p
• Monograph Title: TRB 94th Annual Meeting Compendium of Papers

Subject/Index Terms

• TRT Terms: Aggregates; Asphalt mixtures; Bitumen; Case studies; Cold mix paving mixtures; Image processing; Interfaces; Mechanical properties; Pavement performance
• Uncontrolled Terms: Internal structure (Materials)
• Geographic Terms: Sweden
• Subject Areas: Highways; Materials; Pavements; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 01550067
• Record Type: Publication
• Report/Paper Numbers: 15-0656
• Files: TRIS, TRB, ATRI
• Created Date: Jan 16 2015 8:28AM