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A platform for research: civil engineering, architecture and urbanism
Study on the Cohesive Characteristic of Nano‐SiO2 Bioinspired Grafting Basalt Fiber and Asphalt
https://orcid.org/0000-0002-4143-4126
ABSTRACTTo enhance the effective cohesion between basalt fiber (BF) and asphalt, an optimal preparation process of nano‐SiO2 bioinspired grafting BF was proposed using a chemical grafting method based on the bioinspired idea of mussel‐plaque. The mechanism of nano‐SiO2 bioinspired grafted BF was analyzed through micro‐morphology, functional group changes, and elemental composition tests. The cohesive characteristics of nano‐SiO2 bioinspired grafting BF with asphalt were investigated using direct tension tests and surface energy theory. The results showed that after BF soaking in 3 mol/L HCl solution (BFHCl), nano‐SiO2 grafting BF (SiO2‐BFHCl) has good wettability with asphalt. Alkali metal ions on the surface of BFHCl were ion exchanged with H+ in the HCl solution, forming new Si‐OH bonds and grafting more SiO2. Compared with the original BF reinforced asphalt, the maximum tensile force and ductility of nano‐SiO2 grafting BF reinforced asphalt both increased, and the wetting angle with asphalt droplets was SiO2‐BFHCl > SiO2‐BFNaOH > SiO2‐BF > original BF. Based on the surface energy theory, the cohesion functions of SiO2‐BF, SiO2‐BFNaOH, and SiO2‐BFHCl with asphalt were improved by 2.8%, 7.4%, and 11.6%, respectively, compared to that of the original BF.
Study on the Cohesive Characteristic of Nano‐SiO2 Bioinspired Grafting Basalt Fiber and Asphalt
https://orcid.org/0000-0002-4143-4126
ABSTRACTTo enhance the effective cohesion between basalt fiber (BF) and asphalt, an optimal preparation process of nano‐SiO2 bioinspired grafting BF was proposed using a chemical grafting method based on the bioinspired idea of mussel‐plaque. The mechanism of nano‐SiO2 bioinspired grafted BF was analyzed through micro‐morphology, functional group changes, and elemental composition tests. The cohesive characteristics of nano‐SiO2 bioinspired grafting BF with asphalt were investigated using direct tension tests and surface energy theory. The results showed that after BF soaking in 3 mol/L HCl solution (BFHCl), nano‐SiO2 grafting BF (SiO2‐BFHCl) has good wettability with asphalt. Alkali metal ions on the surface of BFHCl were ion exchanged with H+ in the HCl solution, forming new Si‐OH bonds and grafting more SiO2. Compared with the original BF reinforced asphalt, the maximum tensile force and ductility of nano‐SiO2 grafting BF reinforced asphalt both increased, and the wetting angle with asphalt droplets was SiO2‐BFHCl > SiO2‐BFNaOH > SiO2‐BF > original BF. Based on the surface energy theory, the cohesion functions of SiO2‐BF, SiO2‐BFNaOH, and SiO2‐BFHCl with asphalt were improved by 2.8%, 7.4%, and 11.6%, respectively, compared to that of the original BF.
Study on the Cohesive Characteristic of Nano‐SiO2 Bioinspired Grafting Basalt Fiber and Asphalt
https://orcid.org/0000-0002-4143-4126
ABSTRACTTo enhance the effective cohesion between basalt fiber (BF) and asphalt, an optimal preparation process of nano‐SiO2 bioinspired grafting BF was proposed using a chemical grafting method based on the bioinspired idea of mussel‐plaque. The mechanism of nano‐SiO2 bioinspired grafted BF was analyzed through micro‐morphology, functional group changes, and elemental composition tests. The cohesive characteristics of nano‐SiO2 bioinspired grafting BF with asphalt were investigated using direct tension tests and surface energy theory. The results showed that after BF soaking in 3 mol/L HCl solution (BFHCl), nano‐SiO2 grafting BF (SiO2‐BFHCl) has good wettability with asphalt. Alkali metal ions on the surface of BFHCl were ion exchanged with H+ in the HCl solution, forming new Si‐OH bonds and grafting more SiO2. Compared with the original BF reinforced asphalt, the maximum tensile force and ductility of nano‐SiO2 grafting BF reinforced asphalt both increased, and the wetting angle with asphalt droplets was SiO2‐BFHCl > SiO2‐BFNaOH > SiO2‐BF > original BF. Based on the surface energy theory, the cohesion functions of SiO2‐BF, SiO2‐BFNaOH, and SiO2‐BFHCl with asphalt were improved by 2.8%, 7.4%, and 11.6%, respectively, compared to that of the original BF.
Study on the Cohesive Characteristic of Nano‐SiO2 Bioinspired Grafting Basalt Fiber and Asphalt
Nano Select
Yang, Chengcheng (author) / Liu, Li (author) / Liu, Zhaohui (author) / Zhang, Longke (author)
2025-02-14
Article (Journal)
Electronic Resource
English
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