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

Qiao, Yaning; Dawson, Andrew; Huvstig, Anders; Korkiala-Tanttu, Leena

Authors

Yaning Qiao

Andrew Dawson

Anders Huvstig

Leena Korkiala-Tanttu



Abstract

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.

Journal Article Type Article
Publication Date Jun 4, 2015
Journal International Journal of Pavement Engineering
Print ISSN 1029-8436
Electronic ISSN 1029-8436
Publisher Taylor & Francis (Routledge)
Peer Reviewed Not Peer Reviewed
Volume 16
Issue 6
APA6 Citation Qiao, Y., Dawson, A., Huvstig, A., & Korkiala-Tanttu, L. (2015). Calculating rutting of some thin flexible pavements from repeated load triaxial test data. International Journal of Pavement Engineering, 16(6), doi:10.1080/10298436.2014.943127
DOI https://doi.org/10.1080/10298436.2014.943127
Keywords Prediction of rutting, unbound granular materials, shakedown limit, permanent deformation, VTT model
Publisher URL http://www.tandfonline.com/doi/full/10.1080/10298436.2014.943127
Copyright Statement Copyright information regarding this work can be found at the following address: http://eprints.nottingh.../end_user_agreement.pdf
Additional Information The Version of Record of this manuscript has been published and is available in International Journal of Pavement Engineering c2015 http://www.tandfonline....80/10298436.2014.943127

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://eprints.nottingham.ac.uk/end_user_agreement.pdf





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