high_early_compressive_strength

1.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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