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Abstract
This paper presents an evaluation of the model for permanent deformation in asphalt concrete layers used in the CalME incremental-recursive mechanistic-empirical method. The permanent deformation modeling was carried out using the CalME software v0.82 in two pavement test sections on the E6 motorway at Fastarp-Heberg, Sweden. The measured traffic, material and climate input data were in some instances completed by CalME default material data. The results indicate that the relation between plastic and elastic shear properties, derived with the Repeated Simple Shear Test at Constant Height, may be affected by ageing. The suggested main ageing effect is loss of dependency on the number of loadings. The model results using default permanent deformation material data correlated well with field measurements in the flexible pavement section. The results from the semi-rigid pavement section indicate that shear stress and elastic shear strain may be difficult to relate to flow rutting in very stiff pavement sections.
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