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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: Properties of a New Type of Polycarboxylate Admixture for Concrete Using High Volume Blast Furnace Slag Cement
Author(s): Shinji Tamaki; Kazuhide Saito; Kazuhisa Okada; Daiki Atarashi; and Etsuo Sakai
Publication: Special Publication
Appears on pages(s): 113-124
Keywords: adsorption; blast-furnace slag; blast-furnace slag cement; chemical admixture; fluidity retention ability
Abstract:Several studies have been pursued in Japan on developing concrete using high volume blast-furnace slag cement for reducing CO2 emissions arising from calcination of cement. However, when using high volume blast-furnace slag cement, various problems are encountered, such as decreased fluidity retention ability caused by the reduction of admixture dosage and decreased strength enhancement. In this paper, the authors focus on the adsorption properties of polycarboxylate ether superplasticizers and the properties of hardened concrete that incorporates a component of high volume blast-furnace slag cement, and discuss the development of a new type of superplasticizer through molecular design and optimization of the admixture composition. The admixture improved the fluidity and properties of hardened concrete using slag cement containing more than 60% blast-furnace slag.
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