SciELO - Scientific Electronic Library Online

vol.55 issue2Cradle-to-gate environmental impacts of the concrete industry in South AfricaA procedure for critical path method-based scheduling in linear construction projects author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand



Related links

  • On index processCited by Google
  • On index processSimilars in Google


Journal of the South African Institution of Civil Engineering

On-line version ISSN 2309-8775
Print version ISSN 1021-2019


HASSAN, M Mostafa. Relationship between creep time dependent index and Paris Law parameters for bituminous mixtures. J. S. Afr. Inst. Civ. Eng. [online]. 2013, vol.55, n.2, pp.08-11. ISSN 2309-8775.

Bituminous mixtures undergo cracking, either top-down or bottom-up, as a consequence of the repeated application of traffic loads, thermal cycling or a combination of the two mechanisms. Cracking is considered as one of the major distress modes in asphalt pavements. This study presents a method to characterise crack resistance of asphaltic mixtures containing waste materials using a semi-circular bending (SCB) fracture test. Three different bituminous mixtures containing incinerator bottom ash waste and one control mix, containing limestone, were tested under cycling SCB loading conditions at 5°C and the results were interpreted using Paris Law. The same mixtures were also tested under controlled stress creep conditions at the same temperature. This paper examines the link between the time dependent index from creep tests with the n parameter from the Paris Law model, based on visco-elastic continuum damage mechanics analysis and linear elastic fracture mechanics principles.

Keywords : cracking; bottom ash; visco-elasticity; SCB; Paris Law; creep.

        · text in English     · English ( pdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License