摘要
利用扫描电镜观察不同水化环境下粒化高炉矿渣粉水化产物微观形貌,并利用能谱分析水化产物的元素组成,计算水化产物的Ca/Si和Ca/(Si+Al)。试验结果表明:在常温养护条件下,矿渣活性较低,水化产物的Ca/Si、Ca/(Si+Al)较高;高温养护提高了矿渣的活性,水化产物的Ca/Si、Ca/(Si+Al)有所降低;常温碱激发环境下矿渣活性得到较好的发挥,矿渣颗粒水化较充分,水化产物的Ca/Si、Ca/(Si+Al)较低;高温养护碱激发环境下,早期矿渣活性即被激发,但阻碍了后期矿渣活性的发挥。
The micro-morphology was observed with SEM and the element compositions were analyzed by EDS of hydration products of ground granulated blast furnace slag in different hydration environment. The results show that Ca/Si ratio and Ca/ （ Si ＋ A1） ratio of hydration products were high and the morphology of hydration products showed low activity of slag in the room temperature cured. The activity of slag was enhanced and Ca/Si ratio and Ca/（ Si ＋ A1） ratio of hydration products reduced in the high temperature cured. The activity of slag was alkali activated, the hydration products were sufficient and Ca/Si ratio and Ca/（Si ＋ A1） ratio of hydration products were low in room temperature cured. The slag＇ s activity was alkali activated cured in high temperature at early ages, however, which hindered the activity at later ages
出处
《硅酸盐通报》
CAS
CSCD
北大核心
2015年第6期1594-1599,共6页
Bulletin of the Chinese Ceramic Society
基金
国家自然科学基金面上项目(51374218)
中国博士后科学基金资助项目(2015M571228)
关键词
粒化高炉矿渣粉
高温养护
碱激发
钙硅比
微观形貌
ground granulated blast furnace slag
high temperature cured
alkali-activated
calcium-silicate ratio
micro-morphology
