Influence of Additives on Fluidity of Cement Paste with Polycarboxylate-Based Superplasticizers.
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- KATO Hiroyoshi
- Cement Business Div., Development Dept., Tokuyama Co., Ltd.
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- MIYAGAWA Toyoaki
- Dept. of Civil Eng., Kyoto Univ.
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- NAKAMURA Akinori
- Cement Business Div., Development Dept., Tokuyama Co., Ltd.
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- DOI Hiroyuki
- Cement Business Div., Development Dept., Tokuyama Co., Ltd.
Bibliographic Information
- Other Title
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- ポリカルボン酸系高性能AE減水剤を使用したセメントペーストの流動性に与える混和材の影響
- ポリカルボンサンケイ コウセイノウ AE ゲンスイザイ オ シヨウ シタ セメントペースト ノ リュウドウセイ ニ アタエル コンワザイ ノ エイキョウ
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Abstract
We discussed the influence of additives, ground granulated blast-furnace slag and limestone powder, on the fluidity of cement paste with polycarboxylate-based superplasticizers (PC) by considering solid volume of powder in packed state, early hydration of paste, adsorption characteristics of PC and steric hindrance effects. The fluidity of cement paste increased with increasing the addition of additive. The solid volume of powder in packed state and the amount of adsorbed PC did not correlate with the fluidity. The loss on ignition decreased with the addition of additive. It is suggested that the decrease of combined water relates to the increase of fluidity. The fluidity increased linearly with decreasing sulfate ion concentration by the addition of additive. We had showed that sulfate ion reduced the thickness of adsorbed PC and steric hindrance effects. The results of present study suggest that the change in fluidity due to the addition of additive is caused by the change in the dispersion of particles by sulfate ions.
Journal
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- Journal of the Society of Materials Science, Japan
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Journal of the Society of Materials Science, Japan 52 (3), 294-300, 2003
The Society of Materials Science, Japan
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Details 詳細情報について
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- CRID
- 1390001205393595776
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- NII Article ID
- 110002302103
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- NII Book ID
- AN00096175
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- ISSN
- 18807488
- 05145163
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- NDL BIB ID
- 6494623
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed