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Mortar fatigue model for meso-mechanical mixture design of ravelling resistant porous asphalt concrete
L.T. Mo 1 * #,M. Huurman 2,S.P. Wu 3,A.A.A. Molenaar 4
1.State Key Lab of Silicate Materials for Architectures, Wuhan University of Technology, WuHan 430070
2.Technology & Development, BAM Wegen bv, Utrecht 3500 GK, The Netherlands
3.State Key Lab of Silicate Materials for Architectures, Wuhan University of Technology,Wuhan,430070
4.Road and Railway Engineering, Faculty of Civil Engineering and Geosciences, Delft University of Technology, The Netherlands,2600
*Correspondence author
#Submitted by
Subject:
Funding: Specialized Research Fund for the Doctoral Program of Higher Education(No.No. 20110143120013), Centre for Transport and Navigation (No.DVS), Dutch Ministry of Transport, Public Works and Water Management, Life Optimization Tool for Porous Asphalt(No.No.DWW-2923)
Opened online: 6 November 2012
Accepted by: none
Citation: L.T. Mo,M. Huurman,S.P. Wu.Mortar fatigue model for meso-mechanical mixture design of ravelling resistant porous asphalt concrete[OL]. [ 6 November 2012] http://en.paper.edu.cn/en_releasepaper/content/4493559
 
 
This paper presents the development of a practical mortar fatigue model on the basis of the dissipated energy concept. A specially designed test setup was developed for characterization of mortar fatigue at meso-scale by means of Dynamic Shear Rheometer (DSR). Test results showed that mortar fatigue models based on the dissipated energy concept can be developed for the purpose of life predictions under complex loading conditions. The dissipated energy per cycle in the initial phase of fatigue tests is a much more practical indicator for fatigue life determination purposes than the total energy dissipated during a fatigue test. Since a mortar fatigue model based on the initial dissipated energy per cycle was adopted, effects of complex stress and strain signals can be taken into account.
Keywords:Porous asphalt concrete; Bituminous mortor; Meso mechanics; Fatigue
 
 
 

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