CAJ | 학술논문

沥青具有显著的流变性,动态力学分析(Dynamic Mechanical Analysis,简称DMA)恰是用流变学指标来评价材料的各种性能.简要阐述了DMA的原理,论述了用DMA方法进行沥青材料性能研究的优越性,结合具体实例阐述该方法在研究沥青及沥青结合料的粘弹性、高温性能、疲劳性能和低温性能等方面的应用,以及DMA方法用于测定沥青零剪切粘度的方法介绍.结果表明,动态力学分析方法可以在相对较短的时间内获得较丰富的粘弹信息,是全面研究沥青性能的有效方法.
력청구유현저적류변성,동태역학분석(Dynamic Mechanical Analysis,간칭DMA)흡시용류변학지표래평개재료적각충성능.간요천술료DMA적원리,논술료용DMA방법진행력청재료성능연구적우월성,결합구체실례천술해방법재연구력청급력청결합료적점탄성、고온성능、피로성능화저온성능등방면적응용,이급DMA방법용우측정력청령전절점도적방법개소.결과표명,동태역학분석방법가이재상대교단적시간내획득교봉부적점탄신식,시전면연구력청성능적유효방법.
Asphalt possesses prominent Rheological Property. Dynamic Mechanical Analysis (DMA)can just estimate various performances of asphalt, using rheological index. Principle of DMA is expounded briefly. Some superiorities using the DMA are discussed. Especially, examples of application are given, which study mechanics performances of asphalt and asphalt binder about viscoelasticity high-temperature performance low-temperature performance and fatigue performance, and how to determine the zero shearing viscosity of asphalt with DMA. The results indicate that Dynamic Mechanical Analysis is an effectual method of studying asphaltp roperty, which can gain abundant information about viscoelasticity in comparatively short time.