journal article·2003Open access

Molecular Structure and Dispersion-Adsorption Mechanisms of Comb-Type Superplasticizers Used in Japan

Etsuo Sakai, Kazuo Yamada, Akira Ohta

Abstract

This paper summarizes the relation between the molecular structure and the dispersion-adsorption mechanisms of 3 types of comb-type superplasticizers used in Japan. The action mechanisms of comb-type superplasticizers and the compatibility of cements and superplasticizers are influenced by the molecular structure of polymers such as copolymer components and the grafted chain length of poly (ethylene-oxide) (PEO). Many reports regarding concrete research have investigated the influence of comb-type superplasticizers on the fluidity of concrete and the production of selfcompacting concrete. However, many have not considered the effect of the molecular structures of comb-type superplasticizers. This paper should be useful for engineers and researches studying the action of comb-type superplasticizers in the production of concrete with comb-type superplasticizers, and for understanding any new properties of such concrete.
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Research context

OpenAlex topics: Innovations in Concrete and Construction Materials · Concrete and Cement Materials Research · Innovative concrete reinforcement materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Dept. of Metallurgy and Ceramic Science, Graduate School of Science and Engineering, Tokyo Institute of Technology

Research & Development Center, Taiheiyo Cement Corp.

Central Research Labs. NMB Co., Ltd.

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