Abstract: the mountain sand act for the sand application in the road lesson for concrete is first can't get arounding．Research that this text with the yi-lu road is a basis，analysis expound mountain sand road technique economy for concrete not only have the good work the characteristic， mechanical behavior，fuck the shrinkage properties，but also having marked value．

Key words: mountain sand, work the chacteristic, road use the characteristic, economic acpects

摘要： 山砂替代砂应用于路面砼是一个不可回避的课题．本文以二级路宜——泸路的研究为依据，分析阐述了山砂路面砼不仅具有良好的工作特性、力学特性、干缩特性，而且具有显著的技术经济价值．

关键词: 山砂, 工作性, 路用特性, 经济性