颗粒细度与粉煤灰-水泥胶凝体系韧性关系研究  

Research on relationship between particle fineness and toughness of fly ash-cement

作　　者：袁晓露[1] 周世华[2] 

机构地区：[1]三峡大学土木与建筑学院,湖北宜昌443002 [2]长江科学院材料与结构研究所,湖北武汉430010

出　　处：《人民长江》2013年第7期79-81,共3页Yangtze River

基　　金：国家自然科学基金项目(51109122);三峡大学科学基金项目(KJ2010B025)

摘　　要：为了弄清水泥与粉煤灰颗粒细度对水泥石韧性的影响,利用灰色关联理论,试验研究了水泥和粉煤灰颗粒细度与粉煤灰-水泥胶凝体系韧性间的关系。试验结果表明,影响粉煤灰-水泥体系韧性的因素排序为:粉煤灰颗粒细度>水泥颗粒细度>水泥与粉煤灰颗粒细度之差。适当增大粉煤灰的比表面积以及水泥与粉煤灰间比表面积的差异、降低水泥的比表面积,对于提高粉煤灰-水泥体系的韧性是有利的。In order to study the influence of fineness of cement and fly ash on toughness of cement stone, we used grey correla- tion analysis to study the correlation between the particle fineness of cement and fly ash and the toughness of fly - ash cement. The results showed that the factors influencing the toughness of fly - ash cement the most is particle fineness of fly ash, followed by particle fineness of cement and the difference of particle fineness between cement and fly ash. Toughness of fly ash cement can be improved by increasing the specific surface area of fly ash and the difference of specific surface areas between cement and fly ash, and reducing the specific surface area of cement properly.

关 键 词：细度 韧性 灰色关联分析 水泥 粉煤灰 

分 类 号：TV42[水利工程—水工结构工程]