Construction and Building Materials, Год журнала: 2024, Номер 456, С. 139239 - 139239
Опубликована: Ноя. 21, 2024
Язык: Английский
Construction and Building Materials, Год журнала: 2025, Номер 462, С. 140008 - 140008
Опубликована: Янв. 18, 2025
Язык: Английский
Процитировано
2
Polymer Degradation and Stability, Год журнала: 2025, Номер unknown, С. 111336 - 111336
Опубликована: Март 1, 2025
Язык: Английский
Процитировано
2
Construction and Building Materials, Год журнала: 2024, Номер 459, С. 139648 - 139648
Опубликована: Дек. 31, 2024
Язык: Английский
Процитировано
4
Buildings, Год журнала: 2025, Номер 15(7), С. 1171 - 1171
Опубликована: Апрель 2, 2025
As a polymer-like organic material, asphalt often undergoes aging during service life. Regeneration technology is the main approach to achieve its recycling; therefore, rejuvenator an important factor affecting regeneration effect. In order evaluate rejuvenation effects of rejuvenators on aged asphalt, fluid catalytic cracking (FCC) slurry and penetrant containing epoxy functional groups were used prepare conventional (CR1 CR2) penetrable (PR). The impact physical properties was investigated, different mild severe evaluated through rheological tests. Results show that effectively lubricates movement molecules, improving high temperature stability resistance rejuvenator. CR1 CR2 are more suitable for as has relatively minimal effect chemical composition colloidal structure asphalt. At 25% dosage, PR significantly restores while still fail meet specifications. effective because it not only dissolves disperses asphaltenes but also weakens interactions between asphaltenes, which facilitates restoration enhances findings this study provide insights into design efficient utilization reclaimed pavement (RAP).
Язык: Английский
Процитировано
0
Materials, Год журнала: 2024, Номер 17(17), С. 4258 - 4258
Опубликована: Авг. 28, 2024
The regeneration performance of an aged styrene-butadiene-styrene block copolymer (SBS) will be significantly influenced by different rejuvenators. objective this study was to comparatively investigate the effect SBS-modified asphalt regenerators on asphalt. Four types regenerant formulations were selected. optimal rejuvenator content determined firstly using conventional tests. rheological properties binder evaluated multiple stress creep recovery (MSCR) experiments. Subsequently, mechanism investigated thin-layer chromatography-flame ionization detection (TLC-FID) and Fourier transform infrared spectroscopy (FTIR). results showed that had a certain penetration, softening point, ductility after aging. rejuvenating agent most favorable among four rejuvenators, where dosage 12% rejuvenation effect. addition could appropriately improve elastic deformation capacity binder. epoxy soybean oil in reacted with aging binder, supplementing lost dispersing excessive accumulation asphaltene, making residual SBS swell again. viscoelastic improved adjusting components functional groups achieve purpose regeneration.
Язык: Английский
Процитировано
2
Applied Sciences, Год журнала: 2024, Номер 14(22), С. 10250 - 10250
Опубликована: Ноя. 7, 2024
In order to evaluate the effect and mechanism of composite modifiers on anti-aging property asphalt, this study selected hydrotalcite ultraviolet absorber as prepare different types modified asphalt carry out aging treatment. The effects modification physical rheological properties under conditions were studied by three indices dynamic shear rheometer. distribution interaction characteristics in matrix analyzed scanning electron microscopy (SEM) energy dispersion spectroscopy (EDS). Fourier transform infrared (FTIR) was used analyze changes functional groups characteristic parameters compound asphalt. Based this, a molecular dynamics model constructed, solubility parameters, free volume, mean azimuth shift analyzed. results show that addition modifier can significantly improve UV resistance mainly controlling components groups, good compatibility between ensures effect.
Язык: Английский
Процитировано
1
Construction and Building Materials, Год журнала: 2024, Номер 456, С. 139239 - 139239
Опубликована: Ноя. 21, 2024
Язык: Английский
Процитировано
0