The Activation of Fluorgypsum with Slag Activator and the Fluorine Solidification Mechanics

作     者：周旻 张维昊 

作者机构：School of Resource and Environment ScienceWuhan University 

出 版 物：《Journal of Wuhan University of Technology(Materials Science)》 (武汉理工大学学报（材料科学英文版）)

年 卷 期：2011年第26卷第5期

页      面：1023-1026页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：Funded by National High-Tech Research and Development Program of China (863 Program) (No.2009AA064004) 

主　　题：fluorgypsum activation slag fluorine solidification 

摘      要：The mechanism of activator to fluorgypsum and the fluorine solidification were investigated by the performances of composite binding *** the setting time testing of fluorgypsum with NaOH,Na2SO4 and NaF,the least activator dosage were all 1%.And the cementitious material over 80% of fluorgypsum was processed to improve its quality with slag,fly ash and *** maximum compressive strength of composite binding material was over 12.90 MPa in 28 days,and the concentration of fluroride reduced 64.7% which compared with the pure fluorgypsum binding *** of X-ray diffraction and scanning electron microscopy images showed that ettringite crystals,dihydrate gypsum crystals and C-S-H gel were filled with each *** unreacted CaF2 crystals were embedded by a great deal of network and filamentous C-S-H *** was the main reason that the composite binding material strength improved,water resistance increased and leaching toxicity reduced.