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

Abstract:

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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 D28t 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.

Info:

Periodical:

Edited by:

Hui Wu, Xiao-Qian Qian, Chong-zhi Li and Fei Li

Pages:

257-262

DOI:

10.4028/www.scientific.net/KEM.477.257

Citation:

H. M. Ai et al., "Theoretical and Experimental Research on Compressive Strength of High Fly-Ash Content Concrete", Key Engineering Materials, Vol. 477, pp. 257-262, 2011

Online since:

April 2011

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$35.00

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