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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: Development of New Superplasticizer and Its Application to Self-Compacting Concrete
Author(s): D. Hamada, T. Sato, F. Yamato, and T. Mizunuma
Publication: Special Publication
Appears on pages(s): 291-304
Keywords: concrete; segregation; superplasticizers
Abstract:A newly developed ‘polyether-based super-plasticizer’ was found to be much more suitable for self-compacting concrete than the conventional ones because of several advantages, such as high dispersability with minimal setting retardation while maintaining segregation resistance. Polyether-based superplasticizers’ features long ethylene oxide (EO) graft chains which give high dispersability by their steric repulsion, and short main chain with smaller amount of carboxyl group which leads to high early-strength. Furthermore, segregation resistance is improved by using this new superplasticizer with higher content of EO. This new superplasticizer has made possible the self-compacting concrete applications resulting in manpower savings, and improvement of quality and productivity.
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