According to the rehydration characteristics of dehydrated phases,a kind of new cementious material system can be prepared with gypsum and fly ash.

• 根据水泥水化产物脱水相具有再水化能力的特点,结合粉煤灰、磷石膏等矿物材料的化学反应特性,组成一个新的胶凝材料体系。