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如何区分粉煤灰一级和二级

更新时间: 2020-10-13 00:00:00     

根据粉煤灰的细度、需水比、烧矢量、含水量、三氧化硫来区别。

1、采用45微米筛余量为细度指标,规定一级灰不大于百分之十二,二级灰不大于百分之二十;

2、粉煤灰需水量比,一级灰不大于百分之九十五,二级灰不大于百分之一百零五;

3、一级灰与二级灰的烧失量,含水量,三氧化硫量都一样。

以上就是区分一级灰和二级灰的方法。

关键词: 如何 区分 粉煤灰 一级 二级

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