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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 of the Application of Viscosity
Reducing Type Superplasticizers for Low
Water-Binder Ratio Concrete
Author(s): T. Matsumoto, T. Sugiyama, and A. Ohta
Publication: Special Publication
Appears on pages(s): 177-186
Keywords: high-strength concrete; low-heat cement; moderate-heat cement; polycarboxylate; self-compacting concrete; viscosity reduction.
Abstract:In low-water/binder-ratio concrete such as high-strength concrete (HSC)
or self-compacting concrete (SCC), concrete workability decreases due to the high viscosity of the concrete as a result of its mixture components and proportion. It is considered that a reduction in concrete viscosity is significantly advantageous for placement of HSC or SCC. In this study, the authors add viscosity reducing type superplasticizers to the formulation of low-water/binder-ratio concrete. As a result, it is found that viscosity reducing type superplasticizers can reduce the viscosity of cement paste in concrete; moreover, the time to achieve a 500 mm (19.7 in.) slumpflow (an index of concrete workability) can be reduced. Accordingly, it is confirmed that application of viscosity-reducing superplasticizers can effectively improve the
workability of HSC or SCC.
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