Evaluation of the predictive models used in the new swedish mechanistic-empirical design module
2012 (English)In: International Journal on Road Materials and Pavement Design, ISSN 1468-0629, Vol. 13, no 2, 300-311 p.Article in journal (Other academic) Published
In order to perform thickness design of flexible pavements based on the HMA fracture mechanics framework prior to construction, the tensile strength and creep power law parameters of the mixture has to be determined. As samples are normally not available in the design stage, these properties will have to be modelled rather than determined in a laboratory. This paper evaluates material models based on the relationship between dynamic (complex) modulus and creep compliance in order to predict tensile strength and creep power law parameters for a mixture. For this evaluation, fourteen field sections from the United States have been used for verification and the results indicate that the crack resistance of a mixture can indeed be estimated without a development of extensive empirical relations between mixture properties and crack-resistance.
Place, publisher, year, edition, pages
2012. Vol. 13, no 2, 300-311 p.
top-down cracking, mechanistic pavement design, material modelling, IDT, Creep compliance, dissipated creep strain energy
IdentifiersURN: urn:nbn:se:kth:diva-33802DOI: 10.1080/14680629.2012.677993ISI: 000305761500007ScopusID: 2-s2.0-84863622971OAI: oai:DiVA.org:kth-33802DiVA: diva2:417876
Updated from submitted to published.QC201207242011-05-182011-05-182014-01-22Bibliographically approved