This paper investigates the water resistance of the composite cementitious material of anhydrite and phosphogypsum under dry wet cycle conditions,and analyzes the change mechanism of its water resistance performance.Results has shown that composite gypsum based cementitious materials are more prone to dissolution and have a higher water absorption rate compared to phosphorus building gypsum.The hydration cycle of composite gypsum based cementitious materials is relatively longer.The hydration process of anhydrite greatly affects the hydration process of the composite cementing system.
关键词
磷建筑石膏/硬石膏/干湿循环/耐水性能/机理分析
Key words
phosphorus building gypsum/anhydrite/dry wet cycle/water resistance performance/mechanism analysis
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