A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Bleeding of SCC pastes with fly ash and GGBFS replacement
In this paper, the influences of using large percentages of Class F fly ash (FA) and ground granulated blast-furnace slag (GGBFS) on bleeding capacity, bleeding rate, and other early-age properties of self-consolidating concrete (SCC) pastes were investigated. Seven mix proportions were studied, and they were a control mixture, two binary FA mixtures, two binary GGBFS mixtures, and two ternary FA and GGBFS mixtures. The water-to-binder ratio was kept constant for all the mixes. Target slump flow diameter values were achieved by modifying the superplasticizer dosage. Bleeding, early-age compressive strength, and hydration heat were tested for each mix. The bleeding tests found that, for the studied water-to-binder ratio, both the Class F FA and GGBFS increased the bleeding capacity, rate, and duration of the SCC pastes. Class F FA increased the bleeding properties more than GGBFS did.
Bleeding of SCC pastes with fly ash and GGBFS replacement
In this paper, the influences of using large percentages of Class F fly ash (FA) and ground granulated blast-furnace slag (GGBFS) on bleeding capacity, bleeding rate, and other early-age properties of self-consolidating concrete (SCC) pastes were investigated. Seven mix proportions were studied, and they were a control mixture, two binary FA mixtures, two binary GGBFS mixtures, and two ternary FA and GGBFS mixtures. The water-to-binder ratio was kept constant for all the mixes. Target slump flow diameter values were achieved by modifying the superplasticizer dosage. Bleeding, early-age compressive strength, and hydration heat were tested for each mix. The bleeding tests found that, for the studied water-to-binder ratio, both the Class F FA and GGBFS increased the bleeding capacity, rate, and duration of the SCC pastes. Class F FA increased the bleeding properties more than GGBFS did.
Bleeding of SCC pastes with fly ash and GGBFS replacement
Sun, Zhihui (author) / Young, Coty (author)
Journal of Sustainable Cement-Based Materials ; 3 ; 220-229
2014-10-02
10 pages
Article (Journal)
Electronic Resource
English
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