APPLICATION OF FRACTURE MACHANICS FOR IMPROVED DESIGN OF BITUMINOUS CONCRETE, VOLUME 2: EVALUATION OF IMPROVED MIXTURE FORMULATIONS AND THE EFFECT OF TEMPERATURE CONDITIONS ON FATIGUE MODELS

In this study, the State-of-the-Art of fatigue and fracture concepts and matheamtical developments of stress-intensity factor were reviewed. The interrelation between normalized stress-intensity factor crack length and beam on elastic foundation are discussed. The effect of material consitituents influencing the fatigue and fracture response of asphaltic mixtures are discussed. The sensitivity analysis included the effect of mixture constituents such as asphalt, filler and polymeric and fibrous additives. In this study, a number of fatigue models for asphaltic concrete were also investigated. In this volume, a sensitivity analysis of mixture variables and a study of fatigue models as related to fracture mechanics is presented. The sensitivity analysis included the effect of mixture constituents, such as aggregate, asphalt and filler content as well as influence of mixture additives. Numerous polymeric and fiberous additives were investigated and effects of treatment levels and additive types on fatigue parameter A were evaluated. In this investigation a number of fatigue models for asphaltic concrete were investigated. These models ranged from the simplest form to the most general form. Variation of the parameters in these models were studied and relationships to asphalt mix were investigated. /FHWA/

• Supplemental Notes:
  • Sponsored by DOT, Federal Highway Administration. See also Volume 1, HRIS 31 165734.
• Corporate Authors:

  Ohio State University, Columbus

  Department of Civil Engineering
  Hitchcock Hall 470
  Columbus, OH  United States  43210
• Authors:
  • Majidzadeh, K
  • Dat, M
  • Makdisi-Tlyas, F
• Publication Date: 1976-6

Media Info

• Pagination: 498 p.

Subject/Index Terms

• TRT Terms: Additives; Asphalt; Asphalt concrete; Cracking; Elastic analysis; Fatigue (Physiological condition); Fillers (Materials); Fracture mechanics; Mathematical analysis; Mathematical models; Mix design; Stresses; Temperature
• Uncontrolled Terms: Crack propagation; Fracture; Models
• Old TRIS Terms: Elastic design
• Subject Areas: Highways; Materials;

Filing Info

• Accession Number: 00165735
• Record Type: Publication
• Source Agency: Federal Highway Administration
• Report/Paper Numbers: FHWA-RD-76- 92 Final Rpt., FCP 34A2-202
• Contract Numbers: DOT-FH-11-8157
• Files: TRIS, USDOT
• Created Date: Mar 7 1978 12:00AM