Evaluation of low temperature performance for SBS/CR compound modified asphalt binders based on fractional viscoelastic model

Zhou, Jie; Chen, Xianhua; Xu, Gang; Fu, Qinghong

doi:10.1016/j.conbuildmat.2019.04.064

Cited by 48 publications

(8 citation statements)

References 29 publications

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“…Nanosilica is generally used to prepare the mixture of polymeric nanocomposite to the large reactions in silica materials and binders of asphalts, in which the optimum contents of nanosilica are 6% in asphalt binders results in higher dispersions of nanosilica and polymers in bitumen mixtures relative to other multidimensional nanomaterial [65]. Nanosilicas in asphalt improves the overall performances of asphalt binders for satisfying the multifunctional requirements of asphalt pavements [66].…”

Section: Types Of Multidimensional Nanomaterials In Asphaltsmentioning

confidence: 99%

Resistance to Aging of Asphalt Modified with Multidimensional Nanomaterials: A literary Review

Pérez

Horna²,

Pastor³

2022

Period. Polytech. Civil Eng.

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Multidimensional nanomaterials, is a resource that has been formed over time becoming a revolutionary technology with a transcendent character providing the use in asphalt construction procedures, benefiting in the aspects of resistance in the environments to the field of civil engineering, in the same way it is a way in the advance for a better conservation of horizontal works with a favorable impact on the materials used, helping to preserve the care of the environment. In such a way that, in this article, a systematic review is reflected, around the exhaustive research in the databases such as Scopus and Science Direct, compiling a sum of 85 articles, which are indexed in journals from 2017 to 2021, carried out correspondingly on the different investigations of the management of multidimensional nanomaterials in asphalts. The objective of this literary review is to transmit various research by authors such as: the impact on the life cycle of asphalt, the performance it produces, the profitability and the advantage of the teaching that multidimensional nanomaterials have left, to later show results that show a growth in yields in asphalts through the application of multidimensional nanomaterials, So that it presents greater efficiency in the resistance to aging of the asphalt it is concluded that the nanomaterials reduce the environmental impact caused by the field of the constructions, improving the anti-aging capacity of the asphalt.

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Section: Types Of Multidimensional Nanomaterials In Asphaltsmentioning

confidence: 99%

Resistance to Aging of Asphalt Modified with Multidimensional Nanomaterials: A literary Review

Pérez

Horna²,

Pastor³

2022

Period. Polytech. Civil Eng.

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“…In order to evaluate the low-temperature crack resistance of asphalt mixtures, the maximum bending strain (ε B ) was measured via low temperature bending testing. Low-temperature cracking of asphalt pavement is caused by the brittleness and hardness of asphalt binder at low temperature [34], and higher values of ε B indicates better flexibility to resist cracks. As shown in Figure 7, the value of ε B showed a linear downward trend as the content of steel slag increased.…”

Section: Low-temperature Crack Resistancementioning

confidence: 99%

Microwave Absorption Ability of Steel Slag and Road Performance of Asphalt Mixtures Incorporating Steel Slag

et al. 2020

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Excessive usage of non-renewable natural resources and massive construction wastes put pressure on the environment. Steel slags, the main waste material from the metal industry, are normally added in asphalt concrete to replace traditional aggregate. In addition, as a typical microwave absorber, steel slag has the potential to transfer microwave energy into heat, thus increasing the limited self-healing ability of asphalt mixture. This paper aims to investigate the microwave absorption potentials of steel slag and the effect of its addition on road performance. The magnetic parameters obtained from a microwave vector network analyzer were used to estimate the potential use of steel slag as microwave absorber to heal cracks. Meanwhile, the initial self-healing temperature was further discussed according to the frequency sweeping results. The obvious porous structure of steel slag observed using scanning electron microscopy (SEM) had important impacts on the road performance of asphalt mixtures. Steel slag presented a worse effect on low-temperature crack resistance and water stability, while high-temperature stability can be remarkably enhanced when the substitution of steel slag was 60% by volume with the particle size of 4.75–9.5 mm. Overall, the sustainability of asphalt mixtures incorporating steel slag can be promoted due to its excellent mechanical and microwave absorption properties.

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“…Therefore, more effective viscoelastic mechanical models or equations have been implemented to suitably predict the low-temperature performance of asphalt binders over a wide range of temperatures and frequencies [19]. The Burgers model is the most commonly implemented method and is composed of the following four components: two spring and two dashpots with four parameters [20,21]. Furthermore, a fractional calculus element, called the spring-pot element, was proposed to characterize the mechanical property of the viscoelastic material which is transformed from a solid state to a fluid.…”

Section: Introduction 1backgroundmentioning

confidence: 99%

Cracking Resistance of Recycled Rubber Asphalt Binder Composed of Warm-Mix Additives

Gui

Wang

et al. 2022

Materials

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Warm-mix asphalt technology has been applied to recycled rubber asphalt binder (RAB), which forms warm-mixed crumb rubber-modified asphalt binder (W-RAB) as a “green” material for environmental conservation and to enhance road performance. Furthermore, low-temperature cracking is one of the major distresses for asphalt pavement, which drastically restricts ride quality and service level. Therefore, the main objective of this study is to comparatively analyze the low-temperature properties of W-RABs based on thermal stress and the simple fractional model. W-RABs were obtained by mixing 60 mesh recycled rubber (CR) and two different types of warm-mix additives, namely viscosity reducer (1, 2, and 3%) and surfactant (0.4, 0.6, and 0.8%). First, Hopkins and Hamming’s numerical algorithm and the Boltzmann superposition principle were used for obtaining thermal stress σ(T). Subsequently, critical cracking temperature Tcr was derived using the single asymptote procedure (SAP) theory. Second, the simple fractional viscoelasticity model was used to calculate the creep compliance, damping ratio, and dissipation energy ratio, and the results were compared with the Superpave protocol results obtained with bending beam rheometer (BBR) tests. The results showed that a combination of CR and warm-mix additives could slightly improve the thermal crack resistance of the asphalt binder. The addition of 0.6% surfactant yielded the optimum performance, while only a high dosage (3%) of viscosity reducer provided a marked improvement in efficiency, which decreased with a decrease in temperature. This study recommends the use of RAB composited with 0.6% surfactant for areas with extremely low temperature.

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Evaluation of low temperature performance for SBS/CR compound modified asphalt binders based on fractional viscoelastic model

Cited by 48 publications

References 29 publications

Resistance to Aging of Asphalt Modified with Multidimensional Nanomaterials: A literary Review

Resistance to Aging of Asphalt Modified with Multidimensional Nanomaterials: A literary Review

Microwave Absorption Ability of Steel Slag and Road Performance of Asphalt Mixtures Incorporating Steel Slag

Cracking Resistance of Recycled Rubber Asphalt Binder Composed of Warm-Mix Additives

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