Predicting crack growth in viscoelastic bitumen under a rotational shear fatigue load
Yuqing Zhang,Yangming Gao +1 more
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In this article, a damage mechanics-based crack growth model was developed to predict crack length in a typical viscoelastic material (i.e. bitumen) under a rotational shear fatigue load.Abstract:
This study develops a damage mechanics-based crack growth model to predict crack length in a typical viscoelastic material (i.e. bitumen) under a rotational shear fatigue load. This crack growth mo...read more
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Fatigue performance of long-term aged crumb rubber modified bitumen containing warm-mix additives
Haopeng Wang,Xueyan Liu,Martin van de Ven,Guoyang Lu,Sandra Erkens,Athanasios Skarpas,Athanasios Skarpas +6 more
TL;DR: In this paper, the effects of crumb rubber modifier (CRM) content (5, 10, 15% and 22% by weight of base bitumen) and warm-mix additives on the binder fatigue performance were investigated.
Journal ArticleDOI
Crack Length Based Healing Characterisation of Bitumen at Different Levels of Cracking Damage
TL;DR: In this paper, the authors quantified the healing and the damage levels of asphalt binders at different damage levels by quantifying the crack length (CL) in binder samples generated by rotational shear fatigue loads in strain-controlled dynamic shear rheometer (DSR) tests.
Journal ArticleDOI
An Equation-Based Multiphysics Modelling Framework for Oxidative Ageing of Asphalt Pavements
TL;DR: In this paper, a multiphysics and time-dependent finite element model was developed to solve the issues of high nonlinearity and circular dependency of oxidative ageing in the asphalt pavements.
Journal ArticleDOI
Rheological and fatigue characterisation of bitumen modified by anti-ageing compounds
TL;DR: In this paper, the effects of anti-ageing compounds on the fatigue performance of bitumen when subjected to different ageing conditions were investigated, including TFOT and pressure ageing vessel (PAV).
Journal ArticleDOI
Energy-based mechanistic approach for crack growth characterization of asphalt binder
TL;DR: In this paper, an energy-based mechanistic approach is applied to determine crack length and the pseudo J-integral is adopted to calculate crack growth rate in asphalt binder, which has a significant influence on fatigue cracking resistance of asphalt pavements.
References
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Journal Article
Characterization of modified asphalt binders in superpave mix design
TL;DR: This report documents the results of a study on the applicability of Superpave specification (AASHTO MP1, "Standard Specification for Performance Graded Asphalt Binder") and protocols developed for asphalt cements to modified asphalt binders.
Journal ArticleDOI
Modification and Validation of Linear Amplitude Sweep Test for Binder Fatigue Specification
TL;DR: The linear amplitude sweep (LAS) test as discussed by the authors uses cyclic loading with systematically increasing load amplitudes to accelerate damage and provides sufficient data for analysis in less than 30 min.
Journal ArticleDOI
Energy-Derived, Damage-Based Failure Criterion for Fatigue Testing:
TL;DR: In this paper, a method is presented for examining dissipated energy to select a consistent level of material behavior that is indicative of the damage accumulation in the mixture, showing the similarity between the constant stress and constant strain modes of testing and providing the potential for unifying the now phenomenological description of fatigue.
Journal ArticleDOI
Evaluation of fatigue criteria for asphalt binders
David A. Anderson,Yann M. Le Hir,Yann M. Le Hir,Mihai Marasteanu,Jean-Pascal Planche,Didier Martin,Gilles Gauthier +6 more
TL;DR: In this paper, a time sweep using the dynamic shear rheometer (DSR) has been proposed as an alternative test method for developing load-associated fatigue information for asphalt binders.
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