Combined effect of asphalt concrete cross-anisotropy and temperature variation on pavement stress–strain under dynamic loading

Ahmed, Mansoor; Rahman, Asifur; Islam, M. R.; Tarefder, Rafiqul A.

doi:10.1016/j.conbuildmat.2015.06.031

Cited by 35 publications

(18 citation statements)

References 17 publications

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“…Testing device was moved between measurements, to allow the pavement to heat and cool as normally. As it can be seen, there are significant differences between deflections measured at various parts of the day, according to the changes of temperature within the asphalt layer, as expected, primarily in the case of the sensors closer to the centre-of-load [14], [44]. The pavement structure at the section of the measurements consisted of a 19 cm thick asphalt layer, 20 cm hydraulic base and 20 cm granular base.…”

Section: Analysis Of the Presented Modelssupporting

confidence: 54%

Consideration of temperature at the moduli of asphalt layers for a suggested mechanistic overlay design method

Soos

2017

Pollack Periodica

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The paper addresses the determination of a stiffness-temperature correction model for the use in a mechanistic overlay design method, developed at the Department of Highway and Railway Engineering, Budapest University of Technology and Economics. Eleven models are selected and evaluated based on 215 laboratory stiffness test results at various temperatures of 47 different AC22 binder course type mixes. As the results showed, for the rough temperature correction of Hungarian binder course mixes for the use in the proposed design method; the model used by the AASHTO 1993 pavement design method is most accurate based on the standard error of the estimate of the selected models.

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Section: Analysis Of the Presented Modelssupporting

confidence: 54%

Consideration of temperature at the moduli of asphalt layers for a suggested mechanistic overlay design method

Soos

2017

Pollack Periodica

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“…By applying this type of wheel load, Ambassa et al [7] predicted the fatigue life of an asphalt pavement subjected to multiple axle loadings, Breakah and Williams [8] conducted a stochastic finite element analysis of the moisture damage in hot mix asphalt mixtures, and Ahmed et al [9] analysed the combined effect of the asphalt concrete crossanisotropy and temperature variation on the pavement stress-strain.…”

Section: State Of the Artmentioning

confidence: 99%

Tire-Pavement Coupling Dynamic Simulation under Tire High-Speed-Rolling Condition

Wang¹,

Lu²,

D³

2016

Int. j. simul. model.

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The coupling effect between tire and pavement is an intensively researched subject to analyse the dynamic interaction of the vehicle-pavement system. By considering the 11.00 R20 tire and expressway asphalt pavement, ABAQUS software was employed in this study to establish an improved model for simulating the coupling effect, in which the tire rubber was taken as a neoHookean material and the pavement was taken as a multilayer structure. The coupling was achieved by considering the equilibrium equation and continuity conditions of the contact surface. The tire rolling, which was modelled by the "steady-state transport" method provided by ABAQUS software, was imported to the tire-pavement coupling for the explicit dynamic computation. Numerical results indicate that the pavement deformation obviously weakens the tire vibration in comparison with the non-deformable assumption, in which the variance of the vertical acceleration at the tire centre is reduced by 25 % and the power spectral density is decreased by 52 %. The influence of the horizontal contact stress (CSHEAR) is considered by taking different friction coefficients. Compared with the case without the CSHEAR, the stresses in the longitudinal and lateral directions within the contact area on the pavement surface are increased by approximately 45 %. This study simulates a more realistic situation, including the contact stress and high-speed-rolling tire, thus the conclusions provide a reference for the optimization and design of vehicles and pavement structures.

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“…Wang tested the triaxial compression dynamic performance of dense and porous asphalt concrete at various temperatures and strain rates and identified that the compressive strength and stiffness of asphalt concrete under dynamic loads exhibited distinct temperature effect. Ahmed [ 16 ] examined that the horizontal tensile strain and vertical strain of asphalt concrete layers showed significant temperature sensitivity by means of the experimental research on road asphalt concrete layers under dynamic loads. Ning [ 17 ] employed the hydraulic servo device to test the dynamic compressive features of hydraulic asphalt concrete at various temperatures and he reported that the failure modes of hydraulic asphalt concrete present distinct strain rate effect under various temperatures.…”

Section: Introductionmentioning

confidence: 99%

“…(16), the theoretical values of the peak compressive stress at different loading conditions are calculated and compared with experimental values in this paper, as presented inFigure 12…”

mentioning

confidence: 99%

Uniaxial Dynamic Compressive Behaviors of Hydraulic Asphalt Concrete under the Coupling Effect between Temperature and Strain Rate

Tang

Liu

et al. 2020

Materials

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To investigate the compressive dynamic properties of hydraulic asphalt concrete under various temperatures, four temperatures and four strain rates have been set to perform the uniaxial compression experiments using hydraulic servo machine in this paper. The influence of temperature and strain rate on the failure modes, stress-strain curves and mechanical characteristic parameters of hydraulic asphalt concrete is analyzed and the results reveal that the failure modes and stress-strain curves have significant temperature effect. When the temperature is between −20 °C and 0 °C, the failure mode is dominated by brittle failure of asphalt binder, and hydraulic asphalt concrete shows obvious strain softening. With the addition of temperature, the failure modes of specimens are transferred from brittle failure to ductile failure since the asphalt changes from elastic-brittleness to viscoelasticity. Influenced by temperature effect, the compressive stress-strain curves of hydraulic asphalt concrete show strain hardening while the peak stress of hydraulic asphalt concrete is obviously decreased, and the variation coefficient of peak stress has a power relation with temperature. With successive increases in strain rate, the stress-strain curves of hydraulic asphalt concrete gradually are transferred from strain hardening to strain softening. The peak stress and stiffness modulus of specimens under compression gradually increase, and the dynamic increase factor of peak stress is linearly related with the logarithm value of strain rate after dimensionless treatment. In terms of the quantitative analysis of the experimental data, two relationship models of the coupling effect between temperature and strain rate are proposed. The proposed models have good applicability to the quantitative analysis of the experimental results in the manuscript. This paper offers important insights into the application and development of hydraulic asphalt concrete in hydraulic engineering.

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Combined effect of asphalt concrete cross-anisotropy and temperature variation on pavement stress–strain under dynamic loading

Cited by 35 publications

References 17 publications

Consideration of temperature at the moduli of asphalt layers for a suggested mechanistic overlay design method

Consideration of temperature at the moduli of asphalt layers for a suggested mechanistic overlay design method

Tire-Pavement Coupling Dynamic Simulation under Tire High-Speed-Rolling Condition

Uniaxial Dynamic Compressive Behaviors of Hydraulic Asphalt Concrete under the Coupling Effect between Temperature and Strain Rate

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