Rehabilitation treatment trials for cracked pavements

Rehabilitation trials using polymer modified binders in crack patching treatments and strain alleviating membrane applications were initiated to provide quantitative performance based information on a range of proprietary products currently available. The methodology used involved trials of these products on homogenous sections of cracked pavement which had not responded to conventional rehabilitation treatments. Test properties for all products were determined using procedures relevant to elastic binders. Pavement condition parameters including crack activity, severity and extent, plus deflection and curvature, were documented to provide a basis for extrapolation to other roads. Performance in terms of reflection cracking and other defects was monitored regularly so that product suitability could be assessed and related to test properties. The results of the trials to date indicate that crack patching treatments have a relatively short life before significant reflection cracking occurs, cold applied products lasting approximately 12 months and hot applied products about 2 years. These products, which combine high elasticity and ductility with moderate viscosity, appear to provide the best service. It is premature to draw conclusions about the service-life of the strain alleviating membranes; however, all products are performing satisfactorily to date.

Language

  • English

Media Info

  • Pagination: 333-48
  • Serial:
    • Volume: 17
    • Issue Number: 3

Subject/Index Terms

Filing Info

  • Accession Number: 01434711
  • Record Type: Publication
  • Source Agency: ARRB
  • Files: ATRI
  • Created Date: Aug 24 2012 6:29PM