Fatigue Test of Composite Pavement on Stress Absorbing Layers for Reflective Cracking

To study the problem of reflective cracking in the composite pavement, the dynamic extension fatigue test device of the asphalt pavement for reflective cracking was developed. The large proportion size anti-cracking fatigue experiment was carried out to test the anti-cracking performance of the stress absorbing layers and to observe the expansion of reflective cracking, which can provide the important experimental data to determine the reasonable thickness of the stress absorbing layers. The results indicated that because of the stress absorbing layers established between Portland cement concrete base and asphalt pavement, the stress concentration in the cracks is reduced significantly, the reflective cracking propagation path is changed, and the service quality of the composite pavement is improved effectively. In order to compare the anti-cracking property of different pavement structures, the anti-cracking ratio R is proposed as the evaluation index. According to the test results and the material properties of the stress absorbing layers, the reasonable thickness of the stress absorbing layers is 2~3 cm.

Language

  • English

Media Info

  • Media Type: Digital/other
  • Features: Figures; References; Tables;
  • Pagination: pp 1390-1395
  • Monograph Title: ICTE 2011

Subject/Index Terms

Filing Info

  • Accession Number: 01447206
  • Record Type: Publication
  • ISBN: 9780784411841
  • Files: TRIS, ASCE
  • Created Date: Sep 25 2012 9:25AM