本发明粉煤灰掺加量高、抗压强度高、干燥收缩值低、耐久性较好。
The method of the invention has advantages of high content fly ash and compressive strength, low drying shrinkage value and good durability.
混凝土材料以其抗压强度高、耐火性好、使用灵活、施工方便等优点。
With its high compressive strength of concrete, fire resistance, good use of flexible, easy construction and so on.
反洗频率低，抗压强度高，不粉化、不板结，比表面积大，活性高，再生效果好。
The backwashof low frequency, high compressive strength, no powder, no hardening, high activity and large specific surface area, good regeneration effect.
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