THE ACCELERATING OR RETARDING EFFECT OF FLY ASH ON THE EARLIER AGE HYDRATION OF PORTLAND CEMENT

摘要：

The hydration-effecting factor Eh is proposed to analysis and to quantify theaccelerating or retarding effect of fly ash on the hydration process of cement. If Eh > 1,fly ashaccelerate the hydration process of cement,the greater the value of Eh,the greater theaccelerating effect of fly ash. If Eh < 1,fly ash retarding the hydration process of cement,thesmaller the value of Eh,the greater the retarding effect of fly ash. The expression andcalculation method of Eh is also proposed in this paper. On the basis of experiments,Eh of flyash in different groups with varies mixing ratios is calculated and used to indicate theaccelerating effect or retarding effect of fly ash on the hydration process of cement.

关键词： fly ash cement earlier age hydration hydration-effecting factor accelerating retarding

作者: Xiong Fugang He Yongjia Lu Linnu Hu Shuguang

作者单位: School of Materials Science and Technology,PR China School of Science,Wuhan University of Technology,PR China

会议类型: 国际会议

会议名称: The International Conference on Durability of Concrete Structures(2008年混凝土结构耐久性国际学术会议)

会议地点: 杭州

会议语种:英文

页码: 400-405

在线出版日期: 2008-11-01（万方平台首次上网日期，不代表论文的发表时间）