ArticleMaterials (Basel, Switzerland)2023
Study on Aging Mechanism and High-Temperature Rheological Properties of Low-Grade Hard Asphalt.
Article in Materials (Basel, Switzerland), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 11 citations in OpenAlex.
- Rheological and Morphological Characterization of Asphalt Cement Hybrid-Modified with Waste-Derived Cellulose Fibers and Crumb Rubber.Polymers · 2026Article
- Influence of Temperature on the Chemical and Rheological Aging Kinetics of Corn Starch-Modified Bitumen.Materials (Basel, Switzerland) · 2026Article
- The Performance Evolution of Porous Asphalt Mixtures in Hot In-Place Recycling with the Addition of Different Rejuvenators.Materials (Basel, Switzerland) · 2026Article
- Asphalt Binder Modification with Hazelnut and Walnut Shells as Valued Antioxidant Sources: Effects on Rheological and Main Physicochemical Post-Oxidation Indicators.Materials (Basel, Switzerland) · 2026Article
- Study on Performance and Aging Mechanism of Rubber-Modified Asphalt Under Variable-Intensity UV Aging.Materials (Basel, Switzerland) · 2025Article
- Rheological and Microstructural Characterization of Steel Slag Powder-Modified Asphalt Mastics: Insights into High-Temperature Performance Enhancement.Materials (Basel, Switzerland) · 2025Article
- Temperature-Dependent Model of Rutting Behavior for Connected Layer Mixtures in Flexible Base Asphalt Pavement.Materials (Basel, Switzerland) · 2025Article
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
Abstract
In order to investigate the potential application of low-grade hard asphalt in high-temperature and high-altitude areas, various tests were conducted to analyze the performance and high-temperature rheological properties of 30#, 50#, and 70# matrix asphalt under thermo-oxidative aging and ultraviolet aging. The tests utilized for analysis included the examination of basic asphalt properties, Fourier transform infrared spectroscopy (FTIR), atomic force microscopy (AFM), gel permeation chromatography (GPC), dynamic shear rheology (DSR), and multi-stress creep recovery (MSCR). The results indicate a progressive decrease in asphalt performance with increasing aging time. Prolonged exposure to thermal oxygen aging and ultraviolet irradiation significantly diminishes the plasticity of asphalt. The carbonyl index and sulfoxide index of asphalt increase after thermal oxygen aging and ultraviolet aging. Notably, 30# asphalt demonstrates greater resistance to aging compared to 50# and 70# asphalt under long-term high ultraviolet radiation. The LMS% of 30#, 50#, and 70# asphalt increases by 14%, 15%, and 16%, respectively. Following photothermal oxidative aging, a larger proportion of lighter components in the asphalt transforms into resins and asphaltenes. The high-temperature rheological properties of the three types of asphalt rank as 30# > 50# > 70#, while within the same type of asphalt, the high-temperature rheological properties rank as PAV > UV3 > UV2 > UV1 > RTFOT > virgin. Elevating temperature, stress level, and stress duration negatively impact the high-temperature stability of asphalt. In general, low-grade asphalt demonstrates superior anti-aging ability and high-temperature rheological properties during the aging process.
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