Calculating rutting of some thin flexible pavements from repeated load triaxial test data

Qiao, Yaning and Dawson, Andrew and Huvstig, Anders and Korkiala-Tanttu, Leena (2015) Calculating rutting of some thin flexible pavements from repeated load triaxial test data. International Journal of Pavement Engineering, 16 (6). pp. 467-476. ISSN 1029-8436

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This paper describes parts of a Nordic pavement performance prediction model study (at the project level of the NordFoU project) where a material performance model, developed at VTT research centre in Finland, has been selected as a mean of calculating the permanently accumulated (plastic) deformation (i.e. rutting) of unbound granular materials (UGMs) in flexible pavements subjected to trafficking. The paper aims to assess the suitability of this VTT model application to Swedish roads comprising thin asphalt layers over a thick UGM base. To achieve this, the VTT model has been used to calculate the deformations of two tested road sections in Sweden. These calculations have been compared with another permanent deformation model for UGM (the Gidel model) and with rutting measurements from trafficked pavements. It is shown from this study that the applied rutting prediction method with VTT model is capable of predicting the development of rutting depth despite some overestimations.

Item Type: Article
Additional Information: The Version of Record of this manuscript has been published and is available in International Journal of Pavement Engineering c2015
Keywords: Prediction of rutting, unbound granular materials, shakedown limit, permanent deformation, VTT model
Schools/Departments: University of Nottingham UK Campus > Faculty of Engineering
Identification Number:
Depositing User: Lashkova, Mrs Olga
Date Deposited: 11 Jul 2016 08:48
Last Modified: 13 Sep 2016 18:23

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