Modelling effects of aging on asphalt binder fatigue using complex modulus and the LAS test

Chen, Hui; Bahia, Hussain U.

doi:10.1016/j.ijfatigue.2021.106150

Cited by 75 publications

(18 citation statements)

References 20 publications

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“…The linear amplitude sweep (LAS) test evaluates the fatigue performance of asphalt at medium temperatures using DSR [35,36]. The rheological parameters in the failure process were obtained by applying linear strain to the asphalt, and the fatigue life of the asphalt was predicted by the viscoelastic continuum damage model.…”

Section: Fatigue Performance Testsmentioning

confidence: 99%

“…The loading amplitude increased linearly from 0.1% to 30%. Fatigue life can be obtained by Equation ( 5) [35].…”

Section: Fatigue Performance Testsmentioning

confidence: 99%

“…We can take log ω as the abscissa and log G (ω) as the ordinate and draw and fit an optimal straight line: log G (ω) = m(log ω) + b. Then, parameter α and B can be obtained by Formulas (7) and ( 8) [35].…”

Section: Fatigue Performance Testsmentioning

confidence: 99%

“…According to the test data of linear amplitude sweep, the calculation formula of damage accumulation of asphalt is Formula (9) [35].…”

Section: Fatigue Performance Testsmentioning

confidence: 99%

“…D(t)and C can be obtained by performing linear regression. The A value is also obtained according to Equations ( 10)~( 13) [35]:…”

Section: Fatigue Performance Testsmentioning

confidence: 99%

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Performance Evaluation of Asphalt Modified with Steel Slag Powder and Waste Tire Rubber Compounds

et al. 2022

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As two kinds of solid wastes, waste tires and steel slag have caused serious threats to the environment. Both waste tire rubber (WTR) and steel slag powder (SSP) can improve the performance of asphalt, while the performance indexes and modification mechanism of modified asphalt are not clear. In this paper, asphalt modified with SSP and WTR was prepared, and its performance was evaluated. The physical properties of asphalt modified with SSP and WTR, including penetration, the softening point, and viscosity, were investigated. Furthermore, high-temperature performance, fatigue resistance, low-temperature performance, and blending mechanism of asphalt modified with SSP and WTR were tested with a dynamic shear rheometer (DSR), bending beam rheometer (BBR), and Fourier transform infrared spectrometer (FTIR). The results showed that with the same content of WTR and SSP, WTR reveals a more significant modification effect on physical properties, fatigue, and low-temperature performance of base asphalt than SSP. The anti-rutting performance of SSP-modified asphalt is better than that of WTR-modified asphalt at 30~42 °C, and the anti-rutting performance of WTR-modified asphalt is better than that of SSP-modified asphalt at 42~80 °C. When the total content of WTR and SSP is the same, the physical properties, high-temperature resistance, fatigue resistance, and low-temperature performance of the asphalt modified with WTR and SSP decrease with the decrease in the ratio of WTR and SSP, and their performance is between WTR-modified asphalt and SSP-modified asphalt. Infrared spectrum results verified that the preparation of WTR- and SSP-modified asphalt is mainly a physical blending process. Overall, this research is conducive to promoting the application of modified asphalt with WTR and SSP in the construction of high-standard pavement.

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Section: Fatigue Performance Testsmentioning

confidence: 99%

“…The loading amplitude increased linearly from 0.1% to 30%. Fatigue life can be obtained by Equation ( 5) [35].…”

Section: Fatigue Performance Testsmentioning

confidence: 99%

Section: Fatigue Performance Testsmentioning

confidence: 99%

“…According to the test data of linear amplitude sweep, the calculation formula of damage accumulation of asphalt is Formula (9) [35].…”

Section: Fatigue Performance Testsmentioning

confidence: 99%

“…D(t)and C can be obtained by performing linear regression. The A value is also obtained according to Equations ( 10)~( 13) [35]:…”

Section: Fatigue Performance Testsmentioning

confidence: 99%

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Performance Evaluation of Asphalt Modified with Steel Slag Powder and Waste Tire Rubber Compounds

et al. 2022

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Evaluation of liquid rubber content and molecular weight on rheological properties of asphalt

Ma²,

et al. 2021

J of Applied Polymer Sci

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To evaluate the effect of liquid styrene‐butadiene rubber (LSBR) on the rheological performance of bitumen, LSBRs with molecular weights of 20,000 (LA) and 50,000 g/mol (LB) are blended into the virgin bitumen. The rheological effect regarding LSBR content and the molecular weight of the bitumen was then conducted by dynamic shear rheometer (DSR) test and a bending beam rheometer (BBR) test, respectively. Short‐term and long‐term aging tests were used to simulate the asphalt aging with modification of LSBR, and the variations of asphalts function groups were detected by Fourier Transform Infrared spectroscopy (FT‐IR). Results indicate that LSBR reduces the rutting and ageing resistance of the virgin bitumen. However, the blended LA and LB extensively enhance the crack resistance at low temperatures. Moreover, the LB modifier improves the fatigue performance of the asphalt more evidently, followed by LA, particularly at 2% mixing content (by weight of the virgin). Compared with LA, the added LB causes more deteriorating impact bitumen's rutting resistance, whereas LB increases the crack resistance at low temperatures. Of note, the LB‐modified bitumen exhibits less ageing sensitivity than the LA‐modified bitumen under a short‐term ageing simulation. However, the LA‐modified bitumen is less sensitive to the long‐term ageing test.

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Performance-Related Characterization of SBS-Modified Bitumen-Filler Mastics Incorporating Hydrated Lime

Carvajal-Muñoz,

Airey,

Vergara

et al. 2024

Lecture Notes in Civil Engineering

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Modelling effects of aging on asphalt binder fatigue using complex modulus and the LAS test

Cited by 75 publications

References 20 publications

Performance Evaluation of Asphalt Modified with Steel Slag Powder and Waste Tire Rubber Compounds

Performance Evaluation of Asphalt Modified with Steel Slag Powder and Waste Tire Rubber Compounds

Evaluation of liquid rubber content and molecular weight on rheological properties of asphalt

Performance-Related Characterization of SBS-Modified Bitumen-Filler Mastics Incorporating Hydrated Lime

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