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New Method for Assessing Asphalt Binder Performance Durability. Project summary rept.
| 题名： | New Method for Assessing Asphalt Binder Performance Durability. Project summary rept. |
| 作者： | DAVISON, R. R.; GLOVER, C. J. |
| 关键词： | *Asphalt-cements; *Binders-Materials; *Durability-; *Test-methods.;Ductility-; Oxidation-; Bituminous-concretes; Aging-tests-Materials; Hardening-; Failure-stress; Cracking-Fracturing; Rheological-properties; Texas-; Superpave-. |
| 摘要： | This project was designed to answer questions about the adequacy of Superpave specifications and in particular to find a specification superior to the G(star)sin delta function, which does not satisfactorily predict fatigue cracking. Also, there has been an ongoing concern that the pressure aging vessel (PAV) does not accurately simulate hardening of asphalts in pavements. Finally, with the increasing use of modifiers there is concern about the applicability of Superpave specifications to these materials, and also about the effect of modifiers on water susceptibility. |
| 报告类型： | 科技报告 |
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