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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Studies of Shotcrete Using Utra Rapid Hardening Cement, Steel Fiber, and Silica fume
Author(s): Yoshihisa Masuda, Yoshio Uchida, and Yoshiki Tanaka
Publication: Special Publication
Appears on pages(s): 201-216
Keywords: bonding; cement dust; cements; durability; metal fibers; mix proportioning; shotcrete; silica fume; Materials Research
Abstract:In this study, the authors investigate shotcrete that is reinforced with steel fibers and partly substitutes ultra rapid hardening cement with silica fume. The results verified that the optimum substitution percentage was to be about 10 percent. The substitution improved bond strength at joints as well as bond strength between steel fibers and concrete at an early age, and silica fume substitution also reduced the dust concentration. It was found that the surface moisture content of fine aggregate should be greater than 4 percent to obtain the expected effect.
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