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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: Drying Shrinkage and Creep of Concrete with Condensed Silica Fume
Author(s): E. Tazawa and A. Yonekura
Publication: Special Publication
Appears on pages(s): 903-922
Keywords: autoclaving; concretes; creep properties; curing; drying
shrinkage; high-strength concretes; silica.
Abstract:Drying shrinkage and creep of concrete with condensed silica fume are experimentally analyzed and compared with those of concrete without condensed silica fume. Specimens for drying shrinkage tests and creep tests are manufactured by two kind of curing methods, namely, standard and autoclave curing, and are measured in air at 20°C and 50% R.H.. Some specimens are measured in water at 20°C. Measurements for volume change and weight change are continued for 800 days. Within the scope of this research the following conclusions may be drawn: (1) Drying shrinkage of concrete with condensed silica fume is lower than that of concrete without condensed silica fume at the same water-cement ratio. But in case of standard curing, the values of drying shrinkage per unit cement paste volume are roughly the same for both concretes with and without condensed silica fume at the same compressive strength; while in case of autoclave curing, the values are higher for concrete with condensed silica fume at the same compressive strength. (2) Creep in air is high for concrete with condensed silica fume in both cases of standard curing and autoclave curing. Creep in water is high for concrete with condensed silica fume in case of standard curing, but creep in water is low for concrete with condensed silica fume in case of autoclave curing.
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