Preparation and Characterization of Waterborne Epoxy Modified Bitumen Emulsion as a High-Performance Cold Binder

This study aims to explore the feasibility of using waterborne epoxy modified bitumen emulsion (WEMBE) as a high-performance cold binder through performance characterization and composition optimization. To achieve this objective, a Fourier transform infrared (FT-IR) spectroscopy was used to monitor the curing behaviour of epoxy resin in bitumen emulsion, and a confocal laser scanning microscope (CLSM) was used to capture the morphologies of bitumen emulsion residues. Following the moisture susceptibility tests of bitumen emulsion mixture through the boiling tests, the rheological properties of WEMBE residues were characterized through the dynamic shear rheometer (DSR) tests. Linear amplitude sweep analysis was also conducted to evaluate the fatigue resistance of the bitumen emulsion residues. The results indicated that the incorporation of waterborne epoxy resin into bitumen emulsion significantly improved its adhesion performance, mechanical strength, and fatigue life, making WEMBE a potential high-performance cold binder that can be used for various purposes, such as cold recycling and cold-mix asphalt paving.

• Supplemental Notes:
  • This paper was sponsored by TRB committee AFK20 Standing Committee on Asphalt Binders.
• Corporate Authors:

  Transportation Research Board

  ,    
• Authors:
  • Li, Rui
  • Leng, Zhen
  • Zhang, Yuan
• Conference:
  • Transportation Research Board 98th Annual Meeting
  • Location: Washington DC, United States
  • Date: 2019-1-13 to 2019-1-17
• Date: 2019

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: 6p

Subject/Index Terms

• TRT Terms: Adhesion; Asphalt emulsions; Cold in-place recycling; Cold mix paving mixtures; Rheological properties
• Identifier Terms: Fourier Transform Infrared Spectroscopy
• Uncontrolled Terms: Fatigue life; Moisture susceptibility; Waterborne epoxy modified bitumen emulsions
• Subject Areas: Highways; Materials; Pavements;

Filing Info

• Accession Number: 01698396
• Record Type: Publication
• Report/Paper Numbers: 19-04420
• Files: TRIS, TRB, ATRI
• Created Date: Mar 2 2019 3:41PM