Silica fume is considered as an ideal modelling material for reactive pozzolans used in concrete.

硅灰是用以研究混凝土用的活性火山灰质材料的理想模型材料。

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Silica fume is considered as an ideal modelling material for reactive pozzolans used in concrete.

硅灰是用以研究混凝土用的活性火山灰质材料的理想模型材料。

youdao