Performance study on anti-weather aging combinations for high-content polymer modified asphalt and comparison by improved multi-scale mathematical TOPSIS method

Hu, Mingjun; Sun, Daquan; Sun, Guoqiang; Sun, Yiren; Ouyang, Jian

doi:10.1016/j.conbuildmat.2023.133357

Cited by 3 publications

(9 citation statements)

References 43 publications

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“…Therefore, polymeric materials’ aging processes impact the features of the base bitumen, undisclosed crystalline modifiers, and SBS. Hu et al [ 99 ] contend that new materials like light-absorbing materials, antioxidants, and light-shielding materials can be uniquely combined and optimized to yield enhanced anti-weather aging for asphalt polymers. Combining these three materials can help improve the high-content polymer-modified asphalt’s anti-aging properties by absorbing UV radiation, shielding it, and neutralizing free radicals [ 99 ].…”

Section: Resultsmentioning

confidence: 99%

“…Hu et al [ 99 ] contend that new materials like light-absorbing materials, antioxidants, and light-shielding materials can be uniquely combined and optimized to yield enhanced anti-weather aging for asphalt polymers. Combining these three materials can help improve the high-content polymer-modified asphalt’s anti-aging properties by absorbing UV radiation, shielding it, and neutralizing free radicals [ 99 ]. In support, Goncalves Bardi et al [ 100 ] assert that polymerization reactions are used in curing blend substrates, which entails converting reactive formulations into highly cross-linked films, resulting in the creation of a 3D network capable of resisting external degradation factors because physical–chemical reactions cannot undo it.…”

Section: Resultsmentioning

confidence: 99%

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The Aging of Polymers under Electromagnetic Radiation

Maraveas,

Kyrtopoulos,

Arvanitis

et al. 2024

Polymers

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Polymeric materials degrade as they react with environmental conditions such as temperature, light, and humidity. Electromagnetic radiation from the Sun’s ultraviolet rays weakens the mechanical properties of polymers, causing them to degrade. This study examined the phenomenon of polymer aging due to exposure to ultraviolet radiation. The study examined three specific objectives, including the key theories explaining ultraviolet (UV) radiation’s impact on polymer decomposition, the underlying testing procedures for determining the aging properties of polymeric materials, and appraising the current technical methods for enhancing the UV resistance of polymers. The study utilized a literature review methodology to understand the aging effect of electromagnetic radiation on polymers. Thus, the study concluded that using additives and UV absorbers on polymers and polymer composites can elongate the lifespan of polymers by shielding them from the aging effects of UV radiation. The findings from the study suggest that thermal conditions contribute to polymer degradation by breaking down their physical and chemical bonds. Thermal oxidative environments accelerate aging due to the presence of UV radiation and temperatures that foster a quicker degradation of plastics.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

The Aging of Polymers under Electromagnetic Radiation

Maraveas,

Kyrtopoulos,

Arvanitis

et al. 2024

Polymers

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“…In this study, UV531 represented the LAMs, nano-SiO 2 represented the LSMs, and Irganox 1010 represented the AOMs. 33 The molecular models of the three types of ARMs are shown in Figure 2. Based on the relative molecular mass of ARMs and their recommended content in asphalt, the number of the three ARMs molecular models were determined, as presented in Table 2.…”

Section: Model and Simulation Methodsmentioning

confidence: 99%

“…The commonly used ARMs include LAMs, LSMs, and AOMs. In this study, UV531 represented the LAMs, nano-SiO 2 represented the LSMs, and Irganox 1010 represented the AOMs . The molecular models of the three types of ARMs are shown in Figure .…”

Section: Model and Simulation Methodsmentioning

confidence: 99%

“…31,32 Currently, the commonly used ARMs include light-shielding materials (LSMs), light-absorbing materials (LAMs), antioxidant materials (AOMs), etc. 33 LSMs primarily reflect and shield ultraviolet radiation, reducing the damage of ultraviolet rays to functional groups and chemical bonds of asphalt. 31 LAMs absorb the energy of ultraviolet radiation and convert it into low-energy heat, reducing the direct damage of ultraviolet energy to asphalt.…”

Section: Introductionmentioning

confidence: 99%

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Molecular-Atomic Scale Insight on Asphalt–Aggregate Interface Interaction and Seawater Erosion with Different Aging-Resistant Materials Using Molecular Dynamics Simulations

Hu,

Zhou,

Sun

et al. 2024

Energy Fuels

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The durability of asphalt pavement in coastal regions has been a widely discussed topic due to the coupling effect of complex climate environment and seawater erosion. Aging-resistant materials (ARMs) significantly enhance the environment resistance of high-viscosity modified asphalt (HiMA), but their impact on the asphalt–aggregate interface interaction and seawater erosion-induced failure remains unclear. In this study, molecular dynamics simulation was employed to investigate the molecular-atomic scale interactions at the HiMA–aggregate interface and the evolution mechanism of seawater erosion with different ARMs. An analysis of the interface adhesion mechanism in different aging-resistant HiMAs was conducted based on molecular polarity, component distribution, and nanostructure evolution. The seawater erosion mechanism at the interface and the impact of ARMs were further investigated. The research indicates that ARMs interact extensively with asphalt components and polymers, altering the molecular spatial arrangement and nanostructure characteristics of HiMA at the aggregate interface. ARMs promote the free volume and diffusion ability of asphalt molecules and accelerate their aggregation at the aggregate interface. With the addition of ARMs, highly polar asphaltene and resin molecules intensify their movement toward the aggregate interface, exhibiting directional adsorption with aggregates. Simultaneously, weakly polar polymer and light components detach from the aggregate interface, vacating the active adsorption sites of aggregates. Consequently, ARMs enhance the interaction at the HiMA–aggregate interface. Seawater erosion induces water movement pathways at the aggregate interface, leading to the intrusion of ionic solutions into asphalt molecules and the occupation of aggregate active sites, thereby diminishing the direct interaction between polar asphalt components and aggregate. The addition of ARMs reduces the deterioration of asphalt nanostructure at the interface and the ion dissolution of asphalt polar components under seawater erosion, thus improving the interaction at the HiMA–aggregate interface. Light shielding material exhibits the most effective enhancement of the asphalt–aggregate interface stability under seawater erosion.

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