Theoretical and Experimental Research on Compressive Strength of High Fly-ash Content Concrete

被引：0
|
作者：
Ai Hongmei [1 ]
Wang Lijiu [1 ]
Wei Jingjing [1 ]
Bai Junying [1 ]
Lu Puguang [1 ]
机构：
[1] Dalian Univ Technol, Sch Civil Engn, Dalian 116024, Peoples R China
来源：
ECOLOGICAL ENVIRONMENT AND TECHNOLOGY OF CONCRETE | 2011年 / 477卷
关键词：
high fly-ash content concrete (HFCC); compressive strength; cementitious coefficient; actual water-binder ratio; micro-aggregate-binder ratio;
D O I：
10.4028/www.scientific.net/KEM.477.257
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Introduced the concept of "Cementitious Coefficient" of fly ash, theoretical formula of strength of HFCC at a certain age was found with two variables: actual water-binder ratio and micro-aggregate-binder ratio. Development regularity of compressive strength of HFCC was studied and formula of long-term strength coefficient D-28(t) was settled. Influence of actual water-binder ratio and micro-aggregate-binder ratio on long-term strength of HFCC was analyzed. Experimental results showed that along with the single-factor increase of actual water-binder ratio and micro-aggregate-binder ratio, growth rate of long-term strength of HFCC increased; influence of actual water-binder ratio was deeper than that of micro-aggregate-binder ratio.
引用
收藏
页码：257 / 262
页数：6
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