Evaluation of predictive material models used in the new Swedish mechanistic-empirical design module Academic Article

abstract

• In order to perform thickness design of flexible pavements based on the hot mix asphalt (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. 2012 Taylor & Francis.

authors

• Birgisson, Bjorn

published proceedings

• ROAD MATERIALS AND PAVEMENT DESIGN

author list (cited authors)

• Gullberg, D., Birgisson, B., & Jelagin, D.

citation count

• 1

complete list of authors

• Gullberg, David||Birgisson, Björn||Jelagin, Denis

publication date

• June 2012

publisher

• Taylor & Francis  Publisher

published in

• ROAD MATERIALS AND PAVEMENT DESIGN  Journal

keywords

• Creep Compliance
• Dissipated Creep Strain Energy
• Indirect Tensile Test
• Material Modelling
• Mechanistic Pavement Design
• Top-down Cracking

Digital Object Identifier (DOI)

• 10.1080/14680629.2012.677993

start page

• 300

end page

• 311

volume

• 13

issue

• 2

URL

• http://dx.doi.org/10.1080/14680629.2012.677993