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Fourier infrared spectroscopy (FTIR) sample preparation and test.

Fourier infrared spectroscopy (FTIR) sample preparation and test.

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Fourier infrared spectroscopy (FTIR) sample preparation and test.
Viscosities of virgin and modified asphalt.
Viscosities of virgin and modified asphalt.
Viscosities of virgin and modified asphalt.
+24 Viscosities of virgin and modified asphalt.
Effects of Commercial Antioxidants on Aging Resistances of Asphalt Binders
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  • Aug 2022
Asphalt aging has a direct influence on the durability of asphalt mixture. In order to improve thermal oxidizing aging resistance of asphalt, the commercial antioxidants including Irganox 1010 and Irgafos 168 were selected to modify base asphalt and SBR asphalt. The basic properties of modified asphalt before and after the rolling thin film oven te...
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The flowchart of this study.
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Rheological Properties and Antiaging Performance of Graphene Oxide-Modified Bio-Asphalt
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To enhance the performance of bio-asphalt, an attempt was made to modify bio-asphalt using graphene oxide (GO). Two bio-asphalts were prepared and modified with different GO dosage levels of 0 to 0.08% to obtain GO-modified bio-asphalts (GOMBA). The two GOMBA were tested in the conventional properties (penetration, softening point, and ductility),...
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Improving anti-aging performance of terminal blend rubberized bitumen by using graft activated crumb rubber
Article
  • Oct 2023
  • J POLYM ENG
The appearance of terminal blend rubberized bitumen (TB) has improved a series of defects of traditional rubber bitumen, such as high viscosity, poor storage stability. Therefore, its wide application prospect is self-evident. However, different degrees of thermal-oxidative aging problem still exist in the process from production to use of TB, which seriously affects the service life of pavement. To improve the anti-aging performance of TB, grafting activated crumb rubber (GACR) was obtained by using acrylamide, and then compounded with TB. Firstly, TB was prepared in the self-developed nitrogen protection device. Secondly, GACR modified bitumen (GACR-MB), TB/CR composite modified bitumen (TB/CR) and TB/GACR composite modified bitumen (TB/GACR) were developed in the atmospheric environment. Finally, the performance of four kinds of crumb rubber modified bitumens before and after aging was compared and analyzed by testing high and low temperature rheological properties. The results show that GACR slowed down the formation rate and aggregation degree of asphaltenes and other macromolecular substances, and TB/GACR showed excellent aging resistance.
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