An experimentally-based viscoelastic behavior of asphalt mastic at high temperatures

You, Qinglong; Ma, Jinxing; Liu, Xin

doi:10.1016/j.conbuildmat.2018.05.116

Cited by 21 publications

(3 citation statements)

References 22 publications

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“…The asphalt binder type shows great correlation with the reinforcement of the mastic by adding mineral filler [18]. For the modified asphalt mastic, viscosity significantly increases with increasing filler content, but the increase is not significant for neat asphalt mastic [19]. The filler volume fraction is also determined for the mastic depending on the asphalt binder used [20].…”

Section: Introductionmentioning

confidence: 99%

Laboratory Evaluation of the Relationship of Asphalt Binder and Asphalt Mastic via a Modified MSCR Test

et al. 2023

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Asphalt mastic, which consists of an asphalt binder and a mineral filler, provides critical adhesion and viscoelasticity to an asphalt mixture. The rheological response of the asphalt mastic is mainly derived from its asphalt binder. In this study, a simple laboratory test method is proposed to estimate the relationship of asphalt binder and its mastic. Two modified binders (3.5% and 4.0% styrene–butadiene–styrene (SBS) of asphalt binder by mass) were blended with a limestone filler at six different mineral filler contents to produce mastic samples. A modified multiple stress creep-recovery (MSCR) test was conducted on both the asphalt binder and its mastic with the same testing protocols, and the stress conditions and rheological response of asphalt binder in the mastic with linear or nonlinear viscoelasticity were both investigated. The results show that the stress of the asphalt binder in its mastic decreased with increasing filler contents. However, for the linear-viscoelasticity mastic, the decrease rate of the stress began to slow down when the filler content had reached 100% or 120%. For the rheological properties of the asphalt binder in the mastic, the %R of the asphalt binder was improved by adding filler, especially for the nonlinear-viscoelasticity mastic. The asphalt binder of the linear-viscoelasticity asphalt mastic also showed a linear viscoelastic response and a good recovery property. The performance of the asphalt mastic and rheological properties of its asphalt binder were highly related to its filler content.

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Section: Introductionmentioning

confidence: 99%

Laboratory Evaluation of the Relationship of Asphalt Binder and Asphalt Mastic via a Modified MSCR Test

et al. 2023

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“…Based on DSR and MSCR tests, Lagos-Varas et al [ 26 ] proposed a viscoelastic model established by a set of springs and fractional dampers to determine the behavior of asphalt rubber. You et al [ 27 ] tested mineral filler asphalt at high temperatures, using the Brookfield DV-III rotational viscometer and the DSR, which showed that the Maxwell model and the Burgers model can describe the creep characteristics of base asphalt mastic and modified asphalt mastics, respectively. Furthermore, the relaxation function of the Burgers model was feasible to model the relaxation characteristics of base asphalt binder and modified asphalt mastics.…”

Section: Introductionmentioning

confidence: 99%

Study on Viscoelastic Properties of Various Fiber-Reinforced Asphalt Binders

Li,

Xu,

Wang

et al. 2024

Materials

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This study analyzed the viscoelastic properties of asphalt binders reinforced with various fibers, such as modified asphalt binder, modified asphalt binder reinforced with lignin fibers (LFs), polyester fibers (PFs), and polypropylene fibers (PPFs), using dynamic shear rheological (DSR) testing. Then, the experiment generated data on the dynamic modulus and phase angle, which described the dynamic rheological characteristics at varying temperatures. The generalized Maxwell model was employed to select the appropriate element, and the test curve was fitted into a discrete time spectrum based on the time–temperature equivalence principle (TTSP). The master curves of the relaxation modulus and creep compliance were established to predict the relaxation and creep properties of various asphalt binders. The analysis indicated that fiber-reinforced binders offer superior resistance to high temperatures and long-term deformation, while being less sensitive to temperature and having a more significant elastic characterization. The binders reinforced with PPFs and LFs exhibited superior performance in high-temperature settings and long-term durability, respectively. On the other hand, the binder reinforced with PFs displayed exceptional high-temperature elastic properties. Additionally, based on the experimental data and corresponding discussion, it appears that the 13-element GM model is more appropriate for fitting the data.

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“…Lagos-Varas et al have developed a modified Burgers rheological model for asphalt mastics, which allows for optimization of their composition in regard to their performance and mechanical properties for asphalt pavements [25]. Qinglong, Jinglian and Xin have chosen the Burgers model for modeling of creep and relaxation observed at high temperatures concerning asphalt binders modified with the SBS copolymer and mineral fillers, whereas the Maxwell model has been chosen as the more effective one for unmodified mastics [26]. Therefore, variation of models (their combination and number of basic single parameter elements) is dependent on the specificity and composition of the tested material.…”

Section: Introductionmentioning

confidence: 99%

Study on Styrene-Butadiene-Styrene Modified Asphalt Binders Relaxation at Low Temperature

Dziadosz

Słowik

Niwczyk³

et al. 2021

Materials

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The paper presents the results of laboratory investigation on asphalt binders relaxation at low temperature, carried out in a ductilometer using the tensile test with continuous force measurement. Polymer modified asphalt binder samples consisting of a 50/70 penetration grade bitumen mixed with a concentrate of styrene-butadiene-styrene (SBS) modified bitumen—a 160/220 penetration grade bitumen modified with a SBS copolymer in the amount of 9%—were tested. Therefore, polymer modified binders containing 3%, 4.5%, 6% and 7.5% SBS, respectively, were obtained and investigated. Tensile tests were performed at −16 °C on samples before aging and subjected to short-term aging (RTFOT). Test results in the form of relaxation curves have been mathematically described using a modified generalized Maxwell model. Based on the acquired results, it was shown that the increase of the SBS copolymer content in asphalt binder precipitates the relaxation process, while aging slows down this phenomenon. It has also been proven that with increased content of SBS elastomer in asphalt binder, the effect of short-term aging on binder’s stress relaxation ability at low temperatures is reduced.

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An experimentally-based viscoelastic behavior of asphalt mastic at high temperatures

Cited by 21 publications

References 22 publications

Laboratory Evaluation of the Relationship of Asphalt Binder and Asphalt Mastic via a Modified MSCR Test

Laboratory Evaluation of the Relationship of Asphalt Binder and Asphalt Mastic via a Modified MSCR Test

Study on Viscoelastic Properties of Various Fiber-Reinforced Asphalt Binders

Study on Styrene-Butadiene-Styrene Modified Asphalt Binders Relaxation at Low Temperature

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