Two-Dimensional Stress Analysis of Low-Temperature Cracking in Asphalt Overlay/Substrate Systems

Prieto-Muñoz, Pablo A.; Yin, Huiming; Buttlar, William G.

doi:10.1061/(asce)mt.1943-5533.0000716

Cited by 12 publications

(3 citation statements)

References 18 publications

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“…Experiencing larger constraint strain will result in larger thermal stress in the asphalt overlay. The asphalt mixture will crack if the thermal stress exceeds the cracking strength of the viscoelastic media (Prieto‐Muñoz et al., 2013; Sun et al., 2018). For the composite structure system, the schematic diagram of the thermal strain response is shown in Figure 9.…”

Section: Contraction and Restraint Action Definitionmentioning

confidence: 99%

“…Owing to the viscoelastic properties of asphalt materials, the thermal stress of asphalt pavement can be mitigated by the relaxation characteristics of bituminous mixtures. The viscoelastic formulation was adopted to increase the accuracy of theory calculation for thermal cracking (Prieto‐Muñoz et al., 2013). However, the granular base is discrete and exhibits nonlinear elastoplastic properties (Liu et al., 2013; Y. Zhang et al., 2018).…”

Section: Introductionmentioning

confidence: 99%

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Thermal contraction coordination behavior between unbound aggregate layer and asphalt mixture overlay based on the finite difference and discrete element coupling method

Wan,

Wang,

Yang

et al. 2024

Computer aided Civil Eng

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The constraint action of the unbound aggregate layer underneath plays an important role in affecting the temperature strains in the top asphalt layer. The focus of the present paper is to investigate the interactive thermal contraction mechanisms between the asphalt mixture and granular base layers to offer a new perspective in promoting the understanding of the thermal cracking disease. In this paper, both experiments and simulations were conducted for the thermal contraction tests. A novel numerical modeling of virtual composite structures was proposed using wall‐zone coupling operation based on the finite difference and discrete element coupling method. The experimental composite structures containing three types of asphalt mixture overlays and five types of unbound aggregate base layers were developed for verification. The thermal contraction and restraint mechanism were revealed from both macro and microscopic scales. The proposed numerical modeling shows a 94% high accuracy. The particle displacement vector and contact force chain could explain the thermal contraction behavior of composite structures. Smaller particle motion displacement or stronger contact force chain result in a higher restraint strain of the asphalt overlay. The thermal contraction behavior can be coordinated through the compaction and loosening of unbound aggregates. The material parameters and cooling temperature differences in the asphalt overlay have slight effects on the constraint action of a base layer, while the gradation and mechanical parameters of the unbound aggregate layer show significant impaction. The parameters, cohesion C and friction angle φ, show a quadratic function with the restraint coefficient. This work has significant guidance on the selection of pavement structure and materials to improve the thermal cracking problem and lay the basis for the mechanical theoretical calculation to predict thermal cracking.

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Section: Contraction and Restraint Action Definitionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Thermal contraction coordination behavior between unbound aggregate layer and asphalt mixture overlay based on the finite difference and discrete element coupling method

Wan,

Wang,

Yang

et al. 2024

Computer aided Civil Eng

View full text Add to dashboard Cite

show abstract

“…By performing numerical inverse Laplace transformations, one can obtain the solution at the time domain. This analytical model has also been applied in pavement analysis (Prieto-Mun˜oz et al, 2012;Yin and Prieto-Mun˜oz, 2013).…”

Section: Introductionmentioning

confidence: 99%

Creep and damage of an adhesive anchor system by accelerated testing and modeling

Yang

Chen

Yin

2017

International Journal of Damage Mechanics

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An accelerated testing and modeling method was proposed and implemented to predict the long-term performance through short-term pullout tests of a cylindrical anchor core by tensile loading at different elevated testing temperatures. Dimensional analysis was conducted to predict the creep behavior of adhesive anchor systems by small-scale tests. By using the frequency-temperature superposition principle, the master curves of the complex and storage moduli were generated in the Prony series form. By performing inverse numerical Laplace transformation, the creep compliance of the adhesive in the time domain was calculated and then used in the viscoelastic analysis of the adhesive anchor system. To validate the model, six adhesive anchor samples with different sizes of hole diameter and depth were fabricated and creep tests were then conducted at different temperatures. Overall, the test results agree well with the theoretical ones using the adhesive’s viscoelastic properties. An accelerated test protocol was further established for the long-term performance analysis of the adhesive anchor systems. The error sources of the experiments were discussed. Because of the generality of the formulation and testing mechanism, the present test method is applicable to the design and analysis of different types and sizes of adhesive anchor systems.

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Mining multiple association rules in LTPP database: An analysis of asphalt pavement thermal cracking distress

Dong

Zhong

Hao

et al. 2018

Construction and Building Materials

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Two-Dimensional Stress Analysis of Low-Temperature Cracking in Asphalt Overlay/Substrate Systems

Cited by 12 publications

References 18 publications

Thermal contraction coordination behavior between unbound aggregate layer and asphalt mixture overlay based on the finite difference and discrete element coupling method

Thermal contraction coordination behavior between unbound aggregate layer and asphalt mixture overlay based on the finite difference and discrete element coupling method

Creep and damage of an adhesive anchor system by accelerated testing and modeling

Mining multiple association rules in LTPP database: An analysis of asphalt pavement thermal cracking distress

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