| Anhydrite is resourceful and is not used effectively because of its poor gelling property, especially, its abandonment results in environmental pollution. Starting from the views of protecting biological environments,improving economical efficiency and extending the resources of construction material industry by using non-wasted technology industry at the present and in the future to produce all kinds of construction materials by using non-wasted technology.It is the important way of anhydrite-resourced use that to produce all kinds of construction materials and products by using wasted anhydrite, so it not only protects environment, but also makes economical efficiency.The ability of anhydrite to react with water slowly to make gypsum forms the chemical basis for its use as a construction material. It can substantially improve the hydrating capability by grinding finely, adding activators and calcining. The industry application of anhydrite will become impossible only after that the hydrating velocity has been perfected. This is the key of the research of anhydrite modification.Based on previous research of Chenjichun,this study adjusts the arousing-system of Jingmen anhydrite, the initial setting time of modified anhydrite has been controlled in 4 minutes,and the final setting time is about 8 minutes. We builds the arousing-system of Jiangxia anhydrite and Chenchao anhydrite. Acting mechanisms between calcining will be discussed based on experiment result and test analysis.We build the relationship of arousing-system and categories of anhydrite,and the arousing-system of higher and lower dosage of gypsum based on it,and also based on which the plasterboard is made,which has the capacity approaches that made of β-he mihydrate.This research will guide the utilization of anhydrite. It makes the anhydrite industry production come to realize, it solves the environmental pollution of wasted anhydrite completely, and it will produce excellent socialand economical efficiency.
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