全民湖南棋牌

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                          【粉煤灰】在水泥中的利用

                          时间:2018-2-6 点击:1617次

                                我国是利用粉煤灰和天然火山灰资源做水泥混合材较早、使用量较多的国家。解放前,一些水泥厂用矿渣作掺合料生产矿渣硅酸盐水泥。解放后的经济建设急需大量的水泥,因此我国在利用矿渣作为水泥外加剂方面发展迅速,特别是立窑工业的发展,利用矿渣等活性外加剂提高水泥的稳定性已成为立窑水泥生产的重要途径。水泥厂采用矿渣和活性混合料生产不同品种和等级的水泥,特别是近年来,一些厂家还在水泥中掺入少量细磨石灰石,提高了水泥的强度。水泥工业节能和废物回收利用取得了显著成效。

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