旧水泥混凝土再生骨料是一种新材料，必须对其路用性能进行研究。
Recycled aggregate of old cement concrete is a new material and it is necessary to study the road performance.
而已有的研究表明废胶粉能改善沥青的路用性能。
Studies showed that crumb rubber powder could improve the roadperformance of asphalt.
本文对水泥灰土稳定细砂基层结构的材料组成设计、施工工艺及路用性能进行了较为系统的研究。
This paper researches the base made of the cement stability fine sand in materials composition designing, construction and pavement characteristic.
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