Laboratory Evaluation of Asphalt Binder Modified with Crumb Rubber and Basalt Fiber

Liu, Li; Huang, Yupeng; Liu, Zhaohui

doi:10.1155/2020/8841378

Cited by 2 publications

(1 citation statement)

References 24 publications

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“…Te characteristic peaks of the two fbers appeared in the same positions (see Figure 14), indicating that their compositions were similar. Te common absorption peaks of the two fbers are listed in Table 6 [20].…”

Section: Ftir Testmentioning

confidence: 99%

Road Performance and Microscopic Mechanism Analysis of Modified Straw Fiber Asphalt Binder

Wang

et al. 2023

Advances in Materials Science and Engineering

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In this study, the correlation between the microstructure of straw fibers and the macroscopic properties of asphalt binders is investigated. Penetration, softening point, bending beam rheometer, and toughness tests are performed to investigate the relationship between the pavement properties of fiber asphalt binders and each of the fiber types and contents. Subsequently, a four-component test, SEM, Fourier transform infrared microscopy, and fluorescence microscope tests are performed to analyze the microstructure of the straw fiber and its effect on asphalt properties. The results show that the high-temperature performance and shear resistance of the asphalt binder were enhanced with an increase in the modified straw fiber content. The low-temperature performance and toughness of the asphalt binder were reduced because of excessive fiber, and the recommended fiber content is 1.5%–2.0%. The adsorption capacity of the modified straw fiber for the light components of asphalt increased by 5.4% on average, and the low-temperature creep capacity of asphalt decreased by 9.6%. The surface roughness of the straw fiber increased via modification, and the shear resistance, high-temperature deformation resistance, and stress relaxation ability of the asphalt increased by 23.1%, 6.5%, and 5.7%, respectively. The comprehensive properties of the asphalt binder with modified straw fiber are similar to those of lignin fiber.

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Section: Ftir Testmentioning

confidence: 99%

Road Performance and Microscopic Mechanism Analysis of Modified Straw Fiber Asphalt Binder

Wang

et al. 2023

Advances in Materials Science and Engineering

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Study on Shielding and Radiation Resistance of Basalt Fiber to Gamma Ray

2022

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In this study, four basalt rocks were selected to produce continuous fibers, the chemical composition of basalt rocks and the corresponding fibers were compared using the XRF, the results reveal that the content of the chemical component present in the basalt fibers is consistent with basalt rocks. The mass attenuation coefficient of different fibers was analyzed using the XCOM program, the results indicate that when the incident electron energy is 0.01~0.1 MeV, fiber mass attenuation coefficient is found to be positively correlated with the content of Wt (Fe2O3 + MnO + TiO2 + CaO + K2O). The structure and properties of the fibers irradiated by different absorption doses of gamma rays were studied using the SEM, EDX and FTIR, the results indicate that irradiation produces no effect on the basalt fiber structure, surface morphology, and contents of the surface elements, the mass loss rate of the fiber was much less than 1%, fiber tensile strength and elastic modulus increased 4.7–7.5% and 3.9–9.1%, respectively, but the elongation at break of fiber decreased 4.18–10.97%. Two selected basalt fiber cloths of thickness 0.12 and 0.28 mm were irradiated with gamma rays of energies of 100 and 120 keV to examine the shielding property of basalt fibers against the gamma rays, when the energy was 100 keV, the shielding ratios of the fiber cloths were 18.9% and 22.5%, respectively, but when the energy was 120 keV, the shielding ratios of the fiber cloths decreased significantly and were at 8.7% and 10.4%, respectively. When the irradiated electron energy is 100 keV, the shielding ratio for basalt fiber cloths measuring 0.12 and 0.28 mm can reach up to 38.9% and 46.3% of that of the 0.5-mm lead plate, respectively.

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Laboratory Evaluation of Asphalt Binder Modified with Crumb Rubber and Basalt Fiber

Cited by 2 publications

References 24 publications

Road Performance and Microscopic Mechanism Analysis of Modified Straw Fiber Asphalt Binder

Road Performance and Microscopic Mechanism Analysis of Modified Straw Fiber Asphalt Binder

Study on Shielding and Radiation Resistance of Basalt Fiber to Gamma Ray

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