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Prediction of flow rutting in asphalt concrete layers

Said, Safwat F.; Hakim, Hassan; Oscarsson, Erik LU and Hjort, Mattias (2011) In International Journal of Pavement Engineering 12(6). p.519-532
Abstract
This paper evaluates an approach for predicting rut formation in asphalt concrete (AC) layers. The approach is based on a linear viscoelastic model for predicting permanent vertical strain in AC layers subjected to a moving load. The input data are tyre pressure, loading speed, lateral wandering of loading wheel, shear modulus and phase angle of AC layer. The analytical approach takes into consideration the change in material characteristics in respect of temperature and changes in the air void content of AC layers due to repeated loading. The approach is verified by a full-scale accelerated loading test at different temperatures. The approach has shown good agreement as regards the prediction of flow rutting in AC layers. In addition, the... (More)
This paper evaluates an approach for predicting rut formation in asphalt concrete (AC) layers. The approach is based on a linear viscoelastic model for predicting permanent vertical strain in AC layers subjected to a moving load. The input data are tyre pressure, loading speed, lateral wandering of loading wheel, shear modulus and phase angle of AC layer. The analytical approach takes into consideration the change in material characteristics in respect of temperature and changes in the air void content of AC layers due to repeated loading. The approach is verified by a full-scale accelerated loading test at different temperatures. The approach has shown good agreement as regards the prediction of flow rutting in AC layers. In addition, the approach is capable of calculating rutting profiles including the upheaval, which is important for estimating rut depth. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
flow rutting, viscoelastic, shear modulus, phase angle, asphalt concrete, modelling
in
International Journal of Pavement Engineering
volume
12
issue
6
pages
519 - 532
publisher
Taylor & Francis
external identifiers
  • wos:000299700600001
  • scopus:84857275572
ISSN
1029-8436
DOI
10.1080/10298436.2011.559549
language
English
LU publication?
yes
id
249fd732-5457-4185-af63-4bbfbfdc682e (old id 2494319)
date added to LUP
2012-06-04 14:18:03
date last changed
2017-10-22 04:16:02
@article{249fd732-5457-4185-af63-4bbfbfdc682e,
  abstract     = {This paper evaluates an approach for predicting rut formation in asphalt concrete (AC) layers. The approach is based on a linear viscoelastic model for predicting permanent vertical strain in AC layers subjected to a moving load. The input data are tyre pressure, loading speed, lateral wandering of loading wheel, shear modulus and phase angle of AC layer. The analytical approach takes into consideration the change in material characteristics in respect of temperature and changes in the air void content of AC layers due to repeated loading. The approach is verified by a full-scale accelerated loading test at different temperatures. The approach has shown good agreement as regards the prediction of flow rutting in AC layers. In addition, the approach is capable of calculating rutting profiles including the upheaval, which is important for estimating rut depth.},
  author       = {Said, Safwat F. and Hakim, Hassan and Oscarsson, Erik and Hjort, Mattias},
  issn         = {1029-8436},
  keyword      = {flow rutting,viscoelastic,shear modulus,phase angle,asphalt concrete,modelling},
  language     = {eng},
  number       = {6},
  pages        = {519--532},
  publisher    = {Taylor & Francis},
  series       = {International Journal of Pavement Engineering},
  title        = {Prediction of flow rutting in asphalt concrete layers},
  url          = {http://dx.doi.org/10.1080/10298436.2011.559549},
  volume       = {12},
  year         = {2011},
}