Mechanical Behavior of Polymer-Modified Bituminous Mastics. II: Numerical Approach

Hajikarimi, Pouria; Tehrani, Fateh Fakhari; Nejad, Fereidoon Moghadas; Absi, Joseph; Khodaii, Ali; Rahi, Mohammad; Petit, Christophe

doi:10.1061/(asce)mt.1943-5533.0002593

Cited by 17 publications

(8 citation statements)

References 28 publications

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“…Indeed, they represent the mastic. In order to manage the aggregate/bitumen interface, a tie function that is preloaded into Abaqus is used to ensure continuity of displacement and transmission of the constraints . Table summarizes the various inclusions/matrix volume's fractions.…”

Section: D and 3d Micromechanical Modelling Of Bituminous Compositesmentioning

confidence: 99%

Multiscale heterogeneous numerical simulation of asphalt mixture

Sawda

Fakhari-Tehrani

Absi

et al. 2019

Mat Design Process Comm

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A multiscale heterogeneous numerical finite element (FE) model is a method used in order to prognosticate the asphalt mixture's mechanical behaviour at various scales (bitumen and mortar mastic). Thus, the aim of this research paper is to evaluate its accuracy. A biphasic approach was adopted to model the bituminous composite. The latter is made of elastic aggregates and viscoelastic matrix. In this developed multiscale method, the biphasic composite's properties are shifted from an initial scale to a greater one. The parameters inputted into the FE model consisted of the dynamic modulus and the elastic properties of the matrix at several scales. A software developed in our laboratory was used to obtain randomly generated aggregates. These inclusions have different sizes and shapes. Therefore, this program generates the bituminous composites' aggregate skeletons. Values of the complex modulus and phase angle obtained from numerical simulations were compared with those obtained by an analytical method based on the Generalized Self Consistent Scheme (GSCS) model and to experimental ones. The results confirm the accuracy of the global mechanical behaviour obtained from the generated heterogeneous numerical model. Lastly, at local scale, the asphalt mixture's mechanical behaviour was examined regarding the influence of the heterogeneous microstructures.

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Section: D and 3d Micromechanical Modelling Of Bituminous Compositesmentioning

confidence: 99%

Multiscale heterogeneous numerical simulation of asphalt mixture

Sawda

Fakhari-Tehrani

Absi

et al. 2019

Mat Design Process Comm

Self Cite

View full text Add to dashboard Cite

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“…Hajikarimi et al [16] investigated the rheological and mechanical performances of SBS modified bitumen, as well as its binder, with three proportions by using rheometer equipment for the purpose of analyzing the storage and loss modulus and viscoelastic behavior. Furthermore, they used the obtained dynamic test results in the finite element software ABAQUS, to simulate the viscoelastic behavior of neat and SBS modified asphalt, respectively [17].…”

Section: Introductionmentioning

confidence: 99%

Master Curve Establishment and Complex Modulus Evaluation of SBS-Modified Asphalt Mixture Reinforced with Basalt Fiber Based on Generalized Sigmoidal Model

et al. 2020

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Basalt fiber has been proved to be a good modified material for asphalt mixture. The performance of basalt fiber modified asphalt mixture has been widely investigated by extensive researches. However, most studies focused on ordinary static load tests, and less attention was paid to the dynamic mechanical response of asphalt mixture incorporating with basalt fiber. This paper aims to establish the master curve of complex modulus of asphalt mixture incorporating of styrene-butadiene-styrene (SBS) polymer and basalt fiber using the generalized Sigmoidal model. Both loading frequency and temperature were investigated for dynamic mechanical response of asphalt mixture with basalt fiber. In addition, based on the time-temperature superposition principle, the master curves of complex modulus were constructed to reflect the dynamic mechanical response at an extended reduced frequency range at an arbitrary temperature. Results indicated that the generalized Sigmoidal model in this paper could better reflect the dynamic mechanical response accurately with correlation coefficients above 0.97, which is utilized to predict the dynamic mechanical performances accurately. Simultaneously, the modulus values exhibit an increasing trend with loading frequency and decrease versus temperature. However, the phase angle values showed different trends with frequency and temperature.

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“…Hajikarimi et al [ 16 ] investigated the rheological and mechanical performances of SBS-modified asphalt as well as its binder with three proportions by using rheometer equipment for the purpose of analyzing the storage and loss modulus and viscoelastic behavior. Furthermore, they used the finite element software to simulate the viscoelastic behavior of neat and SBS-modified asphalt, respectively [ 17 ].…”

Section: Introductionmentioning

confidence: 99%

Study on Viscoelastic Properties of Asphalt Mixtures Incorporating SBS Polymer and Basalt Fiber under Freeze–Thaw Cycles

et al. 2020

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This study aims to study the viscoelastic properties of asphalt mixtures incorporating styrene–butadiene–styrene (SBS) polymer and basalt fiber under freeze–thaw (F-T) cycles by using the static creep test. Asphalt mixture samples incorporating styrene–butadiene–styrene (SBS) polymer and basalt fiber were manufactured following the Superpave gyratory compaction (SGC) method and coring as well as sawing. After 0 to 21 F-T cycles processing, a uniaxial compression static creep test for the asphalt mixture specimens was performed to evaluate the influence of F-T cycles. The results indicated that the F-T cycles caused a larger creep deformation in the asphalt mixtures, which led to a decrease in the rut resistance of the asphalt mixtures incorporating SBS polymer and basalt fiber. Besides, the resistance to deformation decreased significantly in the early stage of F-T cycles. On the other hand, the viscoelastic parameters were analyzed to discuss the variation of viscoelastic characteristics. The relaxation time increased with F-T cycles, which will not be conducive to internal stress dissipation. Compared with lignin fiber, basalt fiber can improve the resistance to high-temperature deformation and the low-temperature crack resistance of asphalt mixtures under F-T cycles.

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Mechanical Behavior of Polymer-Modified Bituminous Mastics. II: Numerical Approach

Cited by 17 publications

References 28 publications

Multiscale heterogeneous numerical simulation of asphalt mixture

Multiscale heterogeneous numerical simulation of asphalt mixture

Master Curve Establishment and Complex Modulus Evaluation of SBS-Modified Asphalt Mixture Reinforced with Basalt Fiber Based on Generalized Sigmoidal Model

Study on Viscoelastic Properties of Asphalt Mixtures Incorporating SBS Polymer and Basalt Fiber under Freeze–Thaw Cycles

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