Investigation of LAS-based fatigue evaluation methods for high-viscosity modified asphalt binders with high-content polymers

Wu, Wangjie; Jiang, Wei; Xiao, Jingjing; Yuan, Dongdong; Wang, Teng; Ling, Xianwu

doi:10.1016/j.conbuildmat.2024.135810

Cited by 25 publications

(6 citation statements)

References 46 publications

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“…The MCMdesigned UPFCs showed poor consistency with the field compaction. (6) According to the investigation results, the MCM-designed UPFC is not in compliance with on-site construction. In order to better align with actual construction and ensure the performance of the UPFC, potential paths to improve UPFC designs from the perspective of mixture design include reducing the height of the MCM design specimens and changing the UPFC design methods.…”

Section: Discussionmentioning

confidence: 97%

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Field Compaction Characteristics of Ultra-Thin Porous Friction Course Based on Laboratory Simulation

Du,

Lin,

Sun

et al. 2024

Applied Sciences

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As a preventive maintenance treatment, the ultra-thin porous friction course (UPFC) has been widely recognized and used in road maintenance because of its excellent performance and cost effectiveness. The Marshall compaction method (MCM) has been adopted to design UPFC mixtures worldwide, particularly in China. However, there are few studies concerning the field compaction properties of MCM-designed UPFCs. The laboratory test results of this study from simulating on-site compaction showed that all UPFC specimens with thicknesses of less than 20 mm barely achieved the target compaction thickness, and all UPFC specimens with different thicknesses failed to meet the air void (AV) requirements of UPFC mixes designed using the MCM. According to the results of a virtual compaction test, and using the discrete element method, the strong force chains were strengthened as the UPFC thickness decreased inside the specimen, making it difficult to evenly diffuse and transfer inside the specimen and resulting in insufficient compaction of the UPFC. Furthermore, it was demonstrated that the MCM-designed UPFC specimens showed significant differences in the AV distributions along the vertical and lateral directions from those of the UPFC specimens that simulated field compaction. The UPFCs designed using the MCM had a poor correlation with field compaction.

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Section: Discussionmentioning

confidence: 97%

“…The full life-cycle cost of UPFCs has been comprehensively evaluated, demonstrating that they have significant economic and social benefits compared to other maintenance techniques [4][5][6]. To date, the materials, road performance, and engineering applications of UPFCs have been extensively studied.…”

Section: Introductionmentioning

confidence: 99%

Field Compaction Characteristics of Ultra-Thin Porous Friction Course Based on Laboratory Simulation

Du,

Lin,

Sun

et al. 2024

Applied Sciences

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“…Presently, proactive snow melting and deicing technologies primarily include selfstress elastic pavement technology [14][15][16], self-melting ice asphalt pavement [17], phase change material pavement [18][19][20], and energy conversion pavement [21][22][23]. Compared to the other three methods, self-melting ice asphalt pavement technology involves substituting deicing agents for aggregates or mineral powders during asphalt mixtures, which are mixed and laid down on the road surface.…”

Section: Introductionmentioning

confidence: 99%

Study on the Long-Term Salt Release Characteristics of Self-Melting Ice Asphalt Mixtures and Their Impact on Pavement Performance

Liu,

Guo,

Sun

et al. 2024

Polymers

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Self-melting ice asphalt pavement materials inhibit pavement freezing and improve driving safety. This paper aims to study the long-term salt release characteristics of self-melting ice asphalt mixtures and the impact on pavement after complete salt release. Firstly, a method to accelerate the rapid release of salt based on the Los Angeles abrasion tester. Then, long-term salt release patterns were elucidated under the influence of deicing agent dosage, type of asphalt, and type of gradation. Finally, a quantitative analysis of the pavement performance after complete salt release is conducted. The results indicate that the release efficiency of the Los Angeles abrasion tester method has increased by 91 times compared to the magnetic stirrer immersion flushing method and by 114 times compared to the natural soaking method. The SBS-modified self-melting ice asphalt mixture possesses a longer duration of salt release, but the uniformity of salt release is inferior. Salt release duration is directly proportional to the dosage of deicing agents. SMA-13 self-melting ice asphalt mixture exhibits poorer uniformity in salt release. After complete salt release, high-temperature stability of self-melting ice asphalt mixtures decreased by 31.6%, low-temperature performance decreased by 15.4%, water stability decreased by 26.7%, and fatigue life decreased by 35.9%.

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“…Asphalt, as the main material for road paving, is aged under the impact of its environment and traffic loads, which reduces certain properties of the asphalt and shortens the service lives of pavements [ 3 , 4 , 5 ]. SBS, as an excellent asphalt modifier, can enhance the high-temperature rutting resistance and low-temperature cracking resistance of asphalt, and, therefore, it is widely used in the construction of high-grade pavements [ 6 , 7 , 8 ]. Several scholars studied the aging behavior of SBS-modified asphalt in thermo-oxidative, ultraviolet, and freeze–thaw environments [ 4 , 9 , 10 , 11 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Salt Solution Environment on the Aging of Styrene−Butadiene−Styrene (SBS)-Modified Asphalt

Xing,

Zhu,

Chiang

et al. 2024

Polymers

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The aim of this paper is to investigate the aging mechanism of asphalt in the sea salt erosion environment from a rheological point of view. In order to simulate the real pavement aging process in the sea salt erosion environment, base asphalt and Styrene−Butadiene−Styrene (SBS)-modified asphalt were selected for salt environment aging tests. The asphalt samples were aged via a thin film oven test (TFOT) and a pressure aging vessel (PAV) test. Then, thermo-oxidizing conditions were created after the samples were immersed in salt solution, mixed with four different concentrations of sodium chloride (NaCl) and sodium sulphate (Na2SO4), to investigate the aging state of asphalt. Temperature scan (TS), frequency scan (FS), and multiple stress creep and recovery (MSCR) tests performed using a Dynamic Shear Rheometer (DSR) were used to investigate the effects on the rheological properties of aged asphalt in a salt environment. The results showed that both base asphalt and SBS-modified asphalt were aged to different degrees under mixed salt solutions. The two asphalt samples aged in a salt environment showed increased hardness. SBS-modified asphalt exhibited higher aging resistance compared with base asphalt in the sea salt environment. However, due to the degradation of the SBS modifier and the aging of base asphalt, the properties of the SBS-modified asphalt showed more obvious complexity with changes in salt solution concentrations.

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Investigation of LAS-based fatigue evaluation methods for high-viscosity modified asphalt binders with high-content polymers

Cited by 25 publications

References 46 publications

Field Compaction Characteristics of Ultra-Thin Porous Friction Course Based on Laboratory Simulation

Field Compaction Characteristics of Ultra-Thin Porous Friction Course Based on Laboratory Simulation

Study on the Long-Term Salt Release Characteristics of Self-Melting Ice Asphalt Mixtures and Their Impact on Pavement Performance

Effect of Salt Solution Environment on the Aging of Styrene−Butadiene−Styrene (SBS)-Modified Asphalt

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