Theoretical and Experimental Research on Compressive Strength of High Fly-Ash Content Concrete
2011 ◽
Vol 477
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pp. 257-262
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Keyword(s):
Fly Ash
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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.
2013 ◽
Vol 859
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pp. 52-55
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2011 ◽
Vol 250-253
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pp. 445-449