By means of SEM, EDAX and om, the petrographic structure and microscopic chemical composition of cement clinker have been researched by adding rare-earth lean ore.
采用SEM、EDAX、OM等分析测试方法，研究了稀土贫矿掺加条件下，水泥熟料的岩相结构及其微区化学组成。
This article researches on the calculation method of thermal stress of cement concrete pavement on lean concrete base course.
本文围绕贫混凝土透水基层水泥混凝土路面温度应力计算方法展开研究。
The lean concrete road base is easy to bring dry contraction due to its much amount of cement and large exposed area.
道路基层贫混凝土水泥用量较大而且是暴露面积较大的工程，容易发生较大的干燥收缩。
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