摘要
沥青混合料的收缩特性是影响沥青路面低温开裂的一个重要因素,研究混合料的收缩特性对于控制沥青路面低温开裂有着重要意义。许多研究表明,马歇尔重量设计法所确定的沥青混合料的技术标准存在很多局限性,而体积设计法能很好地克服这些不足。采用沥青混合料体积设计法对混合料的收缩特性进行探讨分析,通过试验得出采用体积法设计的混合料具有更好的低温性能。
The shrinkage property of asphalt mixtures is an important factor influencing cracking of asphalt pavement at low temperature,and study on shrinkage property of asphalt mixture has important significance for controlling cracking of asphalt pavement at low temperature.Many studies have shown that the technical standards of asphalt mixtures determined by Marshall Weight Design method have many limitations,while the Volumetric Design method can well overcome these limitations.This paper investigates and analyzes the shrinkage property of asphalt mixtures by means of the Volumetric Design method,and draws a conclusion via tests that the mixtures designed by the volumetric method have better low-temperature performance.
出处
《公路交通技术》
2011年第4期32-34,38,共4页
Technology of Highway and Transport
关键词
收缩特性
体积设计法
收缩系数
shrinkage property
volumetric design method
shrinkage coefficient
