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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: Study on the Effects of Blast-Furnace Slag on Properties of No-Slump Concrete Mixtures
Author(s): K. Togawka and J. Nakamoto
Publication: Special Publication
Appears on pages(s): 1401-1412
Keywords: blast furnace slag; compacting; compressive strength; vibration; heat of hydration; roller-compacted concrete; slags; Materials Research
Abstract:Describes the results of an experimental study on the effect of blast furnace slag on properties of fresh and hardened concretes in no-slump lean mixtures suitable for use in roller-compacted concrete. A ground granulated blast furnace slag was used as a partial replacement for the fine aggregate. Five levels of replacement were investigated in three concrete mixtures with cement contents of 100, 200, and 300 kg/m 3. The following conclusions are drawn from the experimental results. In the case of 100 kg/m 3 cementitious content, partial replacement of up to 30 percent fine aggregate with ground granulated blast furnace slag produced a good effect on the compactibility of concrete, and increased the compressive strength with an increasing level of slag replacement. The surface area of slag also influenced the compressive strength development. Slags with larger surface areas gave higher strengths at early ages, and those with lower surface areas yielded higher strengths at later ages. Replacement of cement by slag provided an effective means to reduce the early heat of hydration. Slags with lower surface areas were more effective in reducing the temperature rise.
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