Influence of filler-bitumen ratio on performance of modified asphalt mortar by additive

When the filler-bitumen ratio of asphalt mortar changes, its adhesion and viscoelasticity will also change, as well as its performance at the high and low temperatures, fatigue durability, and ductility. Thus, the appropriate filler-bitumen ratio directly affects the asphalt mortar's performance. This paper tested the physical indexes of the No. 70 matrix asphalt mortar modified by additive Sasobit (SB) and Sasowam (SW) through dynamic shear rheometer and bending beam rheometer under different temperature conditions, and comprehensively analyzed the high-temperature anti-rutting and fatigue performance, low-temperature crack resistance performance, and ductility of asphalt mortar. The results show that ore powder not only can increase the anti-rutting factor but also can increase the aging resistance of asphalt. SB has better performances than SW at high temperatures. As for the filler-bitumen ratio of asphalt mortar with additive SB, the recommended value is between 0.8 and 1.2, and the value may be a little larger for that with SW.

• Record URL:
  http://jmt.swjtu.edu.cn/EN/abstract/abstract8662.shtml
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/2095087X
• Supplemental Notes:
  • Copyright © 2013 Journal of Modern Transportation
• Authors:
  • Qiu, Hongsheng
  • Tan, Ximing
  • Shi, Shu
  • Zhang, Heng
• Publication Date: 2013

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; Photos; References; Tables;
• Pagination: pp 40-46
• Serial:
  • Journal of Modern Transportation
  • Volume: 21
  • Issue Number: 1
  • Publisher: Springer Verlag
  • ISSN: 2095-087X
  • Serial URL: http://jmt.swjtu.edu.cn/EN/volumn/home.shtml
• Publication flags:

  Open Access (libre)

Subject/Index Terms

• TRT Terms: Adhesion; Asphalt; Asphalt additives; Bitumen; Fillers (Materials); Mix design; Mortar; Viscoelasticity
• Identifier Terms: Sasobit
• Subject Areas: Highways; Materials; Pavements; I23: Properties of Road Surfaces;

Filing Info

• Accession Number: 01485303
• Record Type: Publication
• Files: TRIS
• Created Date: Jun 24 2013 1:35PM