In this paper, the physical properties and chemical composition of limestone from Cejing of Shahe are investigated and the activity of calcined lime are tested according to production condition.

研究了沙河市册井石灰石的物理性能、化学成分，参照邢钢的生产条件进行煅烧实验，并对石灰进行活性度测试。

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If industry wastes lime, calcined gypsum and sulfate are grinded with the high-calcium fly ash, activity increases, soundness improves, and activity index can meets the demand for S95slag.

采用工业废石灰、煅烧磷及无机盐激发剂，加上短时粉磨处理以激发高钙灰，可显著改善其安定性，活性指标可达到S95矿渣粉水平。

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The phosphogypsum can be calcined into quality building plaster via neutralized with lime, ball milled or water washed, ball milling pretreated.

磷石膏经石灰中和、球磨或水洗、球磨预处理，可煅烧成优等品建筑石膏。

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