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Indexed by:会议论文

Date of Publication:2011-07-29

Included Journals:EI、CPCI-S、Scopus

Volume:261-263

Page Number:361-365

Key Words:high fly-ash content concrete (HFCC); compressive strength; cementitious coefficient; actual water-binder ratio; ash-binder ratio

Abstract:Cementitious coefficient beta(t) was introduced to reflect the comprehensive effect of fly-ash quality on HFCC strength. On the basis of beta(t), actual water-binder ratio [W/(C+beta F-t)] and ash-binder ratio K was proposed, and the strength calculation model of HFCC with specific design age was established. On the basis of economy principal, the formula to determine K was founded. Influence of the design strength of HFCC and beta(t) on K and the content of fly ash was analyzed.