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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 Containing Granulated Blast Furnace Slag
Author(s): E. Tazawa, A. Yonekura, and S. Tanaka.
Publication: Special Publication
Appears on pages(s): 1325-1344
Keywords: blast furnace slag; compressive strength; concretes; creep properties; drying shrinkage; porosity; Materials Research
Abstract:Blast furnace slag concrete was made with different w/c, slag fineness, and amounts of slag, and cured for different periods. Drying shrinkage in air at 50 percent relative humidity (RH) and 20 C and creep in water at 20 C and in air at 50 percent RH were measured for 300 days. Drying shrinkage of concrete with granulated blast furnace slag was larger at early drying time and was lower for longer drying times with respect to the reference concrete. Using slag of specific surface area of about 8000 cmý/g, drying shrinkage of slag mortar was larger at 3 days curing but was lower after curing for 28 days. Creep of slag concrete was similar to that on nonslag concrete at the same compressive strength for concrete cured for 28 days, but for that cured for 7 days, creep of slag concrete was lower than that of the nonslag concrete. In the slag concrete cured by standard curing, the pore volume of cement paste is smaller and the proportion of fine pores is larger than that of nonslag concrete.
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