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二级粉煤灰的技术要求
更新时间: 2020-07-15 00:00:00  

一级灰细度8至12,二级灰细度14至25,三级灰细度26至46。粉煤灰外观类似水泥,颜色在乳白色到灰黑色之间变化。粉煤灰的颜色是一项重要的质量指标,可以反映含碳量的多少和差异。粉煤灰颗粒呈多孔型蜂窝状组织,比表面积较大,具有较高的吸附活性,颗粒的粒径范围为0.5至300微米。

关键词: 二级 粉煤灰 技术 要求

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