Numerical and experimental investigation of reduced temperature effect on asphalt concrete waterproofing layer in high-speed railway

ABSTRACT The thermal fatigue cracking of asphalt concrete waterproofing layer (ACWL) in high-speed railway is mainly caused by the daily reduced temperature effect. In this study, numerical and experimental investigations on this effect were respectively conducted through the determination of surface temperature field, finite element modelling (FEM), and experiments using the customized overlay test (OT). The results indicated the thermal condition in Northern China was more severe for ACWL compared with that of other regions. The stress concentration effect on ACWL surface was mainly attributed to the temperature variation, average temperature, and viscoelastic behaviour of asphalt concrete. In addition, the OT results indicated the internal damage might happen in ACWL without obvious surface feature. Finally, the OT was in consistent with FEM analysis regarding internal stress distribution and fatigue characteristics, and thus could be used as a feasible test method to evaluate the thermal fatigue of ACWL. Highlights A set of 10-year weather data covering major cities in China was used to calculate surface temperature field change on ACWL in high-speed railway system. A 3-dimensional thermo-mechanical coupled FEM model was established and verified to investigate the daily reduced temperature effect on high-speed railway ACWL. The customized overlay tester was innovatively employed to simulate thermal load characteristics of the reduced temperature effect.

[1]  F. Xiao,et al.  Evolution evaluation of high-speed railway asphalt concrete waterproofing layer during laboratory freeze–thaw cycles , 2022, Construction and Building Materials.

[2]  Hao Wu,et al.  Characterizing the fatigue cracking behaviors of OGFC pavements using the overlay tester , 2021, Construction and Building Materials.

[3]  Feipeng Xiao,et al.  Application of asphalt based materials in railway systems: A review , 2021 .

[4]  Xianhua Chen,et al.  Temperature features of the asphalt concrete waterproofing layer on high-speed railway in cold regions , 2021, Construction and Building Materials.

[5]  Jiayu Wang,et al.  A novel application of thermoplastic polyurethane/waste rubber powder blend for waterproof seal layer in high-speed railway , 2021 .

[6]  Luis Fuentes,et al.  Correlations and preliminary validation of the laboratory monotonic overlay test (OT) data to reflective cracking performance of in-service field highway sections , 2020 .

[7]  Xianhua Chen,et al.  Mechanical Characteristics and Failure Mode of Asphalt Concrete for Ballastless Track Substructure Based on In Situ Tests , 2020, Applied Sciences.

[8]  Xianhua Chen,et al.  Investigation on Interface Damage between Cement Concrete Base Plate and Asphalt Concrete Waterproofing Layer under Temperature Load in Ballastless Track , 2020, Applied Sciences.

[9]  Guotao Yang,et al.  Modelling and in-situ measurement of dynamic behavior of asphalt supporting layer in slab track system , 2019 .

[10]  Xianhua Chen,et al.  Dynamic Responses of Asphalt Concrete Waterproofing Layer in Ballastless Track , 2019, Applied Sciences.

[11]  Martínez Soto Fernando,et al.  Optimization of the Mix-Design System for the Sub-ballast Railroad , 2017 .

[12]  Haibo Ding,et al.  Evaluation of Basic Oxygen Furnace (BOF) material into slag-based asphalt concrete to be used in railway substructure , 2016 .

[13]  Kelvin C. P. Wang,et al.  Asphalt Concrete for High-Speed Railway Infrastructure and Performance Comparisons , 2016 .

[14]  M. Esmaeili,et al.  Reducing Slab Track Vibrations by Using Asphalt Concrete in the Substructure , 2016 .

[15]  Sergio Fernández Cerdas,et al.  Theoretical analysis on ground vibration attenuation using sub-track asphalt layer in high-speed rails , 2015 .

[16]  Kelvin C. P. Wang,et al.  Asphalt Concrete Layer to Support Track Slab of High-Speed Railway , 2015 .

[17]  Jerry G. Rose,et al.  Comparative analysis on dynamic behavior of two HMA railway substructures , 2011 .

[18]  Hang-Sun Chang,et al.  PREDICTION OF THERMAL REFLECTION CRACKING IN WEST TEXAS , 1976 .

[19]  E. S. Barber.  CALCULATION OF MAXIMUM PAVEMENT TEMPERATURES FROM WEATHER REPORTS , 1957 .