Effect of Sodium Tripolyphosphate and Silica Fume on Hydration of High Alumina Cement

It was found that silica fume can reduce the maximum hydration heat release rate of cement by microcalorimetry, inhibit CAH 10 , promote the generation of C 3 AH 6 and strätlingite C 2 ASH 8 , or promote the conversion of CAH 10 to C 3 AH 6 . Sodium tripolyphosphate can retard the early hydration of...

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Published inJournal of Wuhan University of Technology. Materials science edition Vol. 39; no. 5; pp. 1246 - 1252
Main Authors Wang, Jingran, Yang, Zongyuan, Zhang, Shuai, Zhang, Jinhua, Han, Bingqiang, Ke, Changming
Format Journal Article
LanguageEnglish
Published Wuhan Wuhan University of Technology 01.10.2024
The State Key Laboratory of Refractories and Metallurgy,Wuhan University of Science and Technology,Wuhan 430081,China
Subjects
Cementitious Materials
Chemistry and Materials Science
Materials Science
silica fume
dispersing agent
high aluminum cement
hydration
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Summary:It was found that silica fume can reduce the maximum hydration heat release rate of cement by microcalorimetry, inhibit CAH 10 , promote the generation of C 3 AH 6 and strätlingite C 2 ASH 8 , or promote the conversion of CAH 10 to C 3 AH 6 . Sodium tripolyphosphate can retard the early hydration of cement, have a slight effect on 1 d hydration products of cement and inhibit the generation hydration products. Sodium tripolyphosphate and silica fume can promote the early hydration of cement, advance the formation of C 2 ASH 8 or the conversion from CAH 10 to C 3 AH 6 at 1 d.
ISSN:1000-2413
1993-0437
DOI:10.1007/s11595-024-2991-6