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ESTABLISHING LINEAR VISCOELASTIC CONDITIONS FOR ASPHALT BINDERS.
| 题名： | ESTABLISHING LINEAR VISCOELASTIC CONDITIONS FOR ASPHALT BINDERS. |
| 作者： | Marasteanu-MO; Anderson-DA |
| 关键词： | Asphalt-tests; Bending-beam-rheometer; Bituminous-binders; Direct-tension; Dynamic-shear-rheometer; Homogeneity-; Linear-viscoelastic-conditions; Linearity-; Superposition-principle; Viscoelasticity- |
| 摘要： | The linear viscoelastic regime is defined in terms of the constitutive relationship between the stress and the strain. The set of equations that define the fundamental linear viscoelastic material properties in the time and frequency domains and their relationship to one another is based on the validity of the linearity principle. A material must obey two simultaneous conditions to be linear viscoelastic: the homogeneity (also called proportionality) condition and the superposition principle. On the basis of these considerations a testing procedure was developed to check linear viscoelastic conditions for tests performed on asphalt binders with the dynamic shear rheometer (DSR), the bending beam rheometer (BBR), and direct tension (DT). The testing procedure for the DSR requires performing strain sweeps and multiwave single-point tests. For the BBR, tests performed using different constant loads are required. In addition, the recovery part of the specification test is recorded. For the DT, tests performed at different strain rates and relaxation tests performed at different strain levels are required. When applied to asphalt binder data, the testing procedure found no departure from viscoelastic conditions for the DSR and BBR test data. However, the DT procedure indicated a departure from linear viscoelastic conditions. |
| 总页数： | Transportation Research Record. 2000. (1728) pp1-6 (10 Fig., 9 Ref.) |
| 报告类型： | 科技报告 |
相关文献
- Asphalt Materials and Mixtures 2016, Volume 3: Transportation Research Record: Journal of the Transportation Research Board, No. 2576
- CHARACTERIZATION OF CRUMB RUBBER-MODIFIED BINDER USING STRATEGIC HIGHWAY RESEARCH PROGRAM TECHNOLOGY.
- PROPOSED REFINEMENT OF SUPERPAVE HIGH-TEMPERATURE SPECIFICATION PARAMETER FOR PERFORMANCE-GRADED BINDERS (WITH DISCUSSION AND CLOSURE).
- ADVANCED CHARACTERIZATION OF CRUMB RUBBER-MODIFIED ASPHALTS, USING PROTOCOLS DEVELOPED FOR COMPLEX BINDERS.
- BLENDING CHARTS BASED ON PERFORMANCE-GRADED ASPHALT BINDER SPECIFICATION.
- PHYSICAL HARDENING OF ASPHALT BINDERS RELATIVE TO THEIR GLASS TRANSITION TEMPERATURES.
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