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The Influence of Alkalinity on Activation and Microstructure of Fly Ash

LI Dong\|xu 2,CHEN Yi\|min 1, SHEN Jin\|lin 2, WANG Yu\|jiang 1, SU Jiao\|hua 1 (1\^Chinese building materials acience academy\ 100024,China; 2\^Zhejiang University\ 310027,China)  
Active mechanism,hydrates and microstructure of fly ash were studied by X\|ray and SEM analysis.Results showed that reaction of fly ash was very low in the fly ash cement,because Ca(OH)\-2 had less activation capability on fly ash at room temperature.Only if enhancing curing temperature and adding blended alkalinity and sulfate,it is more valid on the breaking of structure and stability of hydrates.\;
【Fund】: 中国建材院国家重点实验室资助
【CateGory Index】: TQ172.12
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