• In this paper the usability of a quarry dust limestone powder in concrete applications substituted for fly ash as mineral admixture is investigated.

    为了有效利用石粉资源,本文对石灰岩石粉代替粉煤灰混凝土矿物掺合料可用性进行了研究。

    youdao

  • In this paper the usability of a quarry dust limestone powder in concrete applications substituted for fly ash as mineral admixture is investigated.

    为了有效利用石粉资源,本文对石灰岩石粉代替粉煤灰混凝土矿物掺合料可用性进行了研究。

    youdao

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