Study on the Relationship Between Rheological Properties and Microstructure of Polymer-Modified Asphalt

Polymer modified asphalt (PMA) polymer phase microstructures were obtained by introducing fluorescence optical microscopy. In order for quantitative analysis to be made on these microstructures, hardware and image analysis software were included in the microscopic equipment. The softening point was chosen to represent PMA's rheological properties. There is discussion of several key factors affecting PMA rheological properties. According to the Krieger-Dougherty (KD) model, PMA zero shear viscosity is mainly influenced by maximum liquid fraction, volume fraction of polymer phase, and zero shear viscosity of base asphalt. The KD model fully described, in detail, the relationship between PMA zero shear viscosity and microstructure. The mechanical properties of the mix can be effectively evaluated through analysis of particle size, shape and distribution of PMA polymer phase. There is discussion and determination of the relationship between rheological properties and microstructure of PMA in this paper.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/19966814
• Authors:
  • Huang, Weidong
  • Sun, LiJun
  • Li, Kun
• Publication Date: 2009-5

Language

• English

Media Info

• Media Type: Print
• Features: Figures; Photos; References;
• Pagination: pp 91-97
• Serial:
  • International Journal of Pavement Research and Technology
  • Volume: 2
  • Issue Number: 3
  • Publisher: Chinese Society of Pavement Engineering
  • ISSN: 1996-6814
  • EISSN: 1997-1400
  • Serial URL: http://www.ijprt.org.tw/index.php
• Publication flags:

  Open Access (libre)

Subject/Index Terms

• TRT Terms: Asphalt; Mathematical models; Microstructure; Quantitative analysis; Rheological properties
• Uncontrolled Terms: Fluorescence microscopy; Optical microscopy; Polymer modification
• Subject Areas: Highways; Materials;

Filing Info

• Accession Number: 01145241
• Record Type: Publication
• Files: TRIS
• Created Date: Nov 30 2009 8:54AM