Journal ArticleDOI
Dynamic Response Analysis for Two Typical Structures of Saturated Asphalt Pavements with 3D Finite Element Method
TLDR
In this article, a three-dimensional finite element model is established to investigate dynamic response of two typical asphalt pavement structures, which are the semi-rigid asphalt pavement and the semiregular asphalt pavement with flexible base course.Abstract:
The combined effect of moisture and dynamic loading on asphalt mixtures has been recognized as one of the main causes of premature deterioration of flexible pavements. Based on porous medium theory, the asphalt mixture is regard as saturated porous material, and a three-dimensional finite element model is established to investigate dynamic response of two typical asphalt pavement structures, which are the semi-rigid asphalt pavement and the semi-rigid asphalt pavement with flexible base course. Then the spatial and temporal distribution of stress, strain and pore fluid pressure of the two structures are calculated, respectively. Analysis results show the superiority of semi-rigid asphalt pavement structure with flexible base course to the semi-rigid asphalt pavement in aspect of moisture resistance capability.read more
Citations
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Journal ArticleDOI
Coupled thermo-hydro-mechanical response of saturated asphalt pavement
TL;DR: In this paper, the thermal deformation and thermoviscoelasticity of the saturated asphalt pavement under the vehicle load, the thermal expansion and thermal compressive stress emerge in the heat-up asphalt pavement, and the pore water pressure in the voids of the asphalt layer.
Journal ArticleDOI
Research on transversely isotropic permeability of asphalt pavement: Laboratory tests and computational simulation
TL;DR: In this paper, the authors used finite element simulation to evaluate the influence of transverse isotropic permeability on the time history and spatial distribution of dynamic responses in asphalt pavement.
References
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Journal ArticleDOI
Physical and Mechanical Moisture Susceptibility of Asphaltic Mixtures
TL;DR: In this article, a comprehensive energy-based computational framework is proposed to predict failure patterns of asphaltic pavement under the given environmental and traffic loading. But, the model is limited to the case of rutting, cracking, raveling or any combination or manifestation thereof.
Large stone asphalt mixes: design and construction
TL;DR: In this paper, a standard method for preparing and testing 6-inch diameter specimens has been presented, which has the following significant differences from ASTM D 1559: (a) hammer weighs 22.5 pounds, (b) specimen size is 6inch diameter and 3-3/4 inch height, (c) specimen weighs about 4,050 grams, and (d) the number of blows needed is 1-1/2 times the numberof blows needed for a standard Marshall specimen to obtain equivalent compaction levels.
Use of large stone asphaltic concrete overlays of flexible pavements
N P Khosla,G A Malpass +1 more
TL;DR: In this article, the VESYS 3AM pavement performance prediction model was used to estimate the performance of a test pavement section rehabilitated with a large stone binder mixture and to monitor the post-construction performance of the large stone mixture field sections.
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