Abstract
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.
Funding source: Education Department of Hunan Province
Award Identifier / Grant number: 22A0209
Funding source: National Natural Science Foundation of China
Award Identifier / Grant number: 52178411
Funding source: Changsha University of Science and Technology
Award Identifier / Grant number: CSLGCX23132
Funding source: Hunan Provincial Natural Science Foundation of China
Award Identifier / Grant number: 2023JJ30042
Funding source: Science and Technology Bureau, Changsha
Award Identifier / Grant number: kq2014108
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Research ethics: Not applicable.
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Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
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Competing interests: The authors state no conflict of interest.
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Research funding: This work was supported by the National Natural Science Foundation of China (52178411), Hunan Provincial Natural Science Foundation of China (2023JJ30042), Scientific Research Project of Hunan Provincial Education Department (22A0209), Changsha Municipal Natural Science Foundation (kq2014108), and Research Innovation Project of Changsha University of Science and Technology (CSLGCX23132).
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Data availability: The raw data can be obtained on request from the corresponding author.
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© 2023 Walter de Gruyter GmbH, Berlin/Boston
Artikel in diesem Heft
- Frontmatter
- Material Properties
- Effect of super critical carbon dioxide and alkali treatment on oxygen barrier properties of thermoplastic starch/poly(vinyl alcohol) films
- Promoting antibacterial activity of polyurethane blend films by regulating surface-enrichment of SiO2 bactericidal agent
- Improving anti-aging performance of terminal blend rubberized bitumen by using graft activated crumb rubber
- An experimental investigation of flame retardancy and thermal stability of treated and untreated kenaf fiber reinforced epoxy composites
- Preparation and properties of ABS/BNNS composites with high thermal conductivity for FDM
- Development of a high-strength carrageenan fiber with a small amount of aluminum ions pre-crosslinked in spinning solution
- Development and characterization of new formulation of biodegradable emulsified film based on polysaccharides blend and microcrystalline wax
- Study on the volatilization behavior of monomer and oligomers in polyamide-6 melt by dynamic film–forming device
- Engineering and Processing
- Numerical simulation on the mixing behavior of double-wave screw under speed sinusoidal pulsating enhancement induced by differential drive
- Numerical and experimental studies on the influence of gas pressure on particle size during gas-assisted extrusion of tubes with embedded antibacterial particles
Artikel in diesem Heft
- Frontmatter
- Material Properties
- Effect of super critical carbon dioxide and alkali treatment on oxygen barrier properties of thermoplastic starch/poly(vinyl alcohol) films
- Promoting antibacterial activity of polyurethane blend films by regulating surface-enrichment of SiO2 bactericidal agent
- Improving anti-aging performance of terminal blend rubberized bitumen by using graft activated crumb rubber
- An experimental investigation of flame retardancy and thermal stability of treated and untreated kenaf fiber reinforced epoxy composites
- Preparation and properties of ABS/BNNS composites with high thermal conductivity for FDM
- Development of a high-strength carrageenan fiber with a small amount of aluminum ions pre-crosslinked in spinning solution
- Development and characterization of new formulation of biodegradable emulsified film based on polysaccharides blend and microcrystalline wax
- Study on the volatilization behavior of monomer and oligomers in polyamide-6 melt by dynamic film–forming device
- Engineering and Processing
- Numerical simulation on the mixing behavior of double-wave screw under speed sinusoidal pulsating enhancement induced by differential drive
- Numerical and experimental studies on the influence of gas pressure on particle size during gas-assisted extrusion of tubes with embedded antibacterial particles