硼泥-菱镁矿尾矿基氧化镁粉对磷酸钾镁水泥性能影响
DOI:
https://doi.org/10.70693/cjst.v2i2.1920Keywords:
磷酸钾镁水泥；菱镁矿尾矿；硼泥，宏观性能；微观结构Abstract
针对磷酸钾镁水泥（MKPC）生产成本高、凝结过快及工业固废资源化利用需求，利用菱镁矿尾矿和硼泥共烧制备MKPC所需重烧MgO，系统研究其对MKPC工作性能、力学性能及微观结构的影响。结果表明：在煅烧温度1300℃、升温速率5 ℃/min和保温时间2 h条件下，该工艺参数制备的硼泥-菱镁矿尾矿基MgO可以用于制备MKPC，当硼泥掺量为20%时，MKPC凝结时间延长至48 min，具有良好的流动性和抗压强度，微观结构致密、采用菱镁矿尾矿和硼泥有利于实现MKPC的低能耗、低成本绿色制备。
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