THE SIMULATION OF THE PROCESS OF CRACK GROWTH IN ASPHALT PAVEMENTS

DE SIMULATIE VAN HET SCHEURGROEIPROCES IN ASFALTVERHARDINGEN

The Dutch design method for asphalt pavements is based on the strain at the bottom of the asphalt layer, not taking into account a redistribution of stresses occurring when cracking starts. As a result of this problem this paper discusses the process of crack growth in three asphaltic concrete mixtures using the Paris law: 1) sand asphalt; 2) dense asphaltic concrete 0/16; 3) stone mastic asphalt 0/11. To use the Paris law it is necessary to know the fracture mechanical material parameters A and n. These can be determined if the crack length is known as a function of the number of axle load repetitions and the stress intensity factor. To obtain this information a combination of uniaxial tensile tests and finite element analyses was used. It is demonstrated that a log linear relationship exists between the material parameters A and n, independent of the way in which this relationship is assessed. For the covering abstract of the conference see IRRD 867688.

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  • Corporate Authors:

    CENTRUM VOOR REGELGEVING EN ONDERZOEK IN DE GROND-, WATER- EN WEGENBOUW EN DE VERKEERSTECHNIEK (CROW)

    GALVANISTRAAT 1
    EDE,   Netherlands  6716 AE
  • Authors:
    • Scarpas, A
    • JACOBS, MMJ
    • VERHOEVEN, K M
  • Publication Date: 1994-3

Language

  • Dutch

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00674664
  • Record Type: Publication
  • Source Agency: DIENST WEG- EN WATERBOUWKUNDE (DWW)
  • ISBN: 90-6628-168-5
  • Files: ITRD
  • Created Date: Mar 8 1995 12:00AM