On the basis of analyses of physical and mechanical characteristic for Crumb rubber, the process that the rubber modified asphalt concrete is taken shape at twice is brought forward.
首先对橡胶颗粒物理力学特点进行分析，在此基础上提出了二次成型橡胶改性沥青混凝土的方法；而后，进行了不同温度下橡胶改性沥青混凝土室内成型工艺研究。
Conventional these posts are metal posts which have good physical characteristic, enough mechanical intension, and are easily to be machined.
传统的铸造金属桩具有良好的物理特性和足够的机械强度，且易于加工成精确的形状。
Final, based on the analysis about physical and mechanical characteristic of three kinds of embankment fillings, advantage of light filling opposite stone filling is proved.
最后，在对路堤填料的物理力学性质进行理论分析的基础上，论述采用轻质填料代替现在普遍使用的土石填料的优越性。
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