コンクリート工学論文集
Online ISSN : 2186-2745
Print ISSN : 1340-4733
ISSN-L : 1340-4733
コンクリート用分離低減剤β-1, 3-グルカン (カードラン) の性質
奈良 潔新藤 竹文矢田 英雄三輪 真敬
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1994 年 5 巻 1 号 p. 23-28

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Series of studies on application of β-1, 3-Glucan (Curdlan) for viscosity agent to super workable concrete have been reported. The purpose of this study is to make clear about the poperties of β-Glucan by comparing the solubility, viscosity and other characteristics in cement system with conventional viscosity agent, cellulose ether. As a result, it is confirmed that β-Glucan exists in the form of independent swollen calcium gel particles and they have negative electric charge on their surface. It indicates that β-Glucan has the ability of increasing the viscosity of cement slurry, and furthermore it is suggested that β-Glucan partly contributes to increasing the fluidity of the cement slurry.

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