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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To study the improvement of high liquid limit clay in south area of Hunan province for highway embankment, lime, fly ash, cement, lime and fly ash, sand and gravel were used as improvement reagents.

为了对湘南高液限粘土进行路用填料改良研究，分别对其进行了石灰、粉煤灰、水泥、石灰加粉煤灰以及砂砾的改良试验。

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Phosphogypsum can be used as a sulphate activator for the lime and fly ash system, but this system sets slowly and its early compressive strength is not high under the normal temperature.

石灰、粉煤灰胶结体系中，可用磷石膏作粉煤灰的硫酸盐激发剂，但该系统在常温下凝结较慢，早强不高。

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