EXPERIMENTAL CHARACTERIZATION AND MODELING OF FATIGUE AND CRACK PROPAGATION IN ASPHALT CONCRETE LAYERS

Fatigue tests on full-depth asphalt concrete slabs were conducted to investigate the crack initiation and propagation parameters. The crack propagation parameters A and n estimated by using Paris' law are different from that recommended by previous researchers, and by consequence, the observed fatigue life during the crack propagation is greater. Shear and stresses and displacement curves obtained in the direct shear tests with normal load on asphalt to asphalt interfaces were used to derive the mechanical model for the interface. For the covering abstract see ITRD E119486.

• Corporate Authors:

  Lisbon Technical University

  Avenido Rovisco Pais
  Lisbon,   Portugal  1049-001
• Authors:
  • PIAU, J-M(CH)
  • Hornych, P
  • Romanoschi, Stefan A
  • Li, Yixuan
• Conference:
  • MODELLING OF FLEXIBLE PAVEMENTS. WORKSHOP 2 AT 6TH INTERNATIONAL CONFERENCE ON THE BEARING CAPACITY OF ROADS, RAILWAYS AND AIRFIELDS, 21 JUNE 2002, IST, LISBON
• Publication Date: 2002

Language

• English

Media Info

• Features: References;
• Pagination: p. 101-13

Subject/Index Terms

• TRT Terms: Bituminous mixtures; Conferences; Cracking; Fatigue (Mechanics); Finite element method; Forecasting; Mathematical models
• ITRD Terms: 4967: Bituminous mixture; 8525: Conference; 5211: Cracking; 5579: Fatigue (mater); 6490: Finite element method; 132: Forecast; 6473: Mathematical model
• Subject Areas: Data and Information Technology;

Filing Info

• Accession Number: 00967771
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD
• Created Date: Jan 13 2004 12:00AM