FRACTURE MECHANICS COMPUTATION METHODS FOR ASPHALT PAVEMENTS WITH SEMI-RIGID BASECOURSES AND THE APPLICATION

Assuming that a thickness-penetrating crack is in a semi-rigid basecourse and the crack has reflected to the surfacing, the stresses and the stress strength factors at the tip of the crack are calculated for the model of Xi'an-Sanyuan highway (in China), under the action of both temperature and loads, using the finite element method; the fatigue lifetime is estimated. The cracking mechanism of asphalt pavements with semi-rigid basecourses on Xi'an-Sanyuan highway is explored. The calculated results indicate that, with regard to Xi'an-Sanyuan highway, load stresses are the main factor influencing pavements, and temperature stesses should also not be ignored, the cracks in basecourses play an important part on the production of the cracking of asphalt pavements, no symmetric loads have a greater influence on the development of cracks than symmetric loads.

• Availability:
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• Corporate Authors:

  EDITORIAL DEPARTMENT OF CHINA JOURNAL OF HIGHWAY AND TANSPORT

  SOUTHERN MIDDLE SECTION OF THE SECOND CIRCULAR ROAD
  XI'AN, SHANXI  China  710064

  EDITORIAL DEPARTMENT OF CHINA JOURNAL OF HIGHWAY AND TANSPORT

  SOUTHERN MIDDLE SECTION OF THE SECOND CIRCULAR ROAD
  XI'AN, SHANXI  China  710064
• Authors:
  • MIAOJUAN, PENG
  • DENGLIANG, ZHANG
  • YONGXU, XIA
• Publication Date: 1998-4

Language

• Chinese

Media Info

• Features: References;
• Pagination: p. 30-8
• Serial:
  • CHINA JOURNAL OF HIGHWAY AND TRANSPORT
  • Volume: 11
  • Issue Number: 2
  • Publisher: XI'AN HIGHWAY UNIVERSITY
  • ISSN: 1001-7372

Subject/Index Terms

• TRT Terms: Base course (Pavements); Bitumen; Calculation; Cracking; Durability; Fatigue (Mechanics); Loads; Rigid pavements; Strength of materials; Stresses; Temperature
• Geographic Terms: China
• ITRD Terms: 2990: Basecourse; 4963: Bitumen; 6464: Calculation; 8023: China; 5211: Cracking; 5910: Durability; 5579: Fatigue (mater); 5567: Load; 2953: Semi rigid pavement; 5544: Strength (mater); 5575: Stress (in material); 6722: Temperature
• Subject Areas: Geotechnology; Highways; Materials; Pavements;

Filing Info

• Accession Number: 00754150
• Record Type: Publication
• Source Agency: Transport Research Centre (CDV)
• Files: ITRD
• Created Date: Oct 27 1998 12:00AM