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Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.
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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: High-Strength Concrete Incorporating Several Admixtures
Author(s): D. Tachibana, M. Imai, N. Yamazaki, T. Kawai, and Y. Inada
Publication: Special Publication
Appears on pages(s): 309-330
Keywords: admixtures; blast furnace slag; compressive strength; creep properties; high-strength concretes; modulus of elasticity; plasticizers; segregation; shrinkage; silica fume; tensile strength; temperature rise (in concrete); workability; Materials Research
Abstract:It is more difficult to obtain good workability and to assure high concrete compressive strengths for high-strength concretes than for lower strength concretes. Several admixtures are often used in combination to increase workability of the fresh concrete. Along these lines, two kinds of chemical admixtures and three kinds of mineral admixtures were selected for use in this study. The study was carried out to examine the effects of materials, particularly admixtures, and mix proportions on several properties of freshly mixed and hardened concrete having a compressive strength of more than 100 MPa. This paper reports on the contribution of silica fume to the workability and constructibility, with a focus on improvement of its compressive strength. It is also reported that ground granulated blast furnace slag can be utilized to improve several properties, e.g., control of thermal cracks due to the heat of cement hydration. Furthermore, slump loss characteristics, the resistance to segregation, tensile strength, modulus of elasticity, shrinkage, creep, and freeze-thaw durability, and the alkali-aggregate reactivity were tested.
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