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Influence of amorphous Al(OH)3 on the hydration of tricalcium aluminate

DeJong, J.G.M.

The influence of amorphous Al(OH)3 on the hydration of 3CaO x Al2O3 was investigated in pastes and in suspensions. In suspensions it was found that amorphous Al(OH)3 started to dissolve almost immediately, and a stage was passed in which most of the anions present in the aqueous phase were polymeric aluminate units. Paste hyration results could be understood by assuming that highly soluble amorphous Al(OH)3 dissloved and, by doing so, adjusted the concentrations in the aqueous phase so as to cause precipitation of some less soluble form of Al(OH)3, thereby retarding hydration.

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Influence of amorphous Al(OH)3 on the hydration of tricalcium aluminate

DeJong, J.G.M.

The influence of amorphous Al(OH)3 on the hydration of 3CaO x Al2O3 was investigated in pastes and in suspensions. In suspensions it was found that amorphous Al(OH)3 started to dissolve almost immediately, and a stage was passed in which most of the anions present in the aqueous phase were polymeric aluminate units. Paste hyration results could be understood by assuming that highly soluble amorphous Al(OH)3 dissloved and, by doing so, adjusted the concentrations in the aqueous phase so as to cause precipitation of some less soluble form of Al(OH)3, thereby retarding hydration.

Influence of amorphous Al(OH)3 on the hydration of tricalcium aluminate

DeJong, J.G.M.

The influence of amorphous Al(OH)3 on the hydration of 3CaO x Al2O3 was investigated in pastes and in suspensions. In suspensions it was found that amorphous Al(OH)3 started to dissolve almost immediately, and a stage was passed in which most of the anions present in the aqueous phase were polymeric aluminate units. Paste hyration results could be understood by assuming that highly soluble amorphous Al(OH)3 dissloved and, by doing so, adjusted the concentrations in the aqueous phase so as to cause precipitation of some less soluble form of Al(OH)3, thereby retarding hydration.

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Title:

Influence of amorphous Al(OH)3 on the hydration of tricalcium aluminate

Additional title:

Einfluss von amorphem Al(OH)3 auf die Hydratation von Trikalzium-Aluminat

Contributors:

DeJong, J.G.M. (author)

Published in:

J. Appl. Chem. USSR ; 18 ; 270-276

Publication date:

1968

Size:

7 Seiten

ISSN:

Type of media:

Article (Journal)

Type of material:

Print

Language:

English

Keywords:

HYDRATATION , PASTE , SUSPENSION , VERZOEGERUNG , KINETIK , HYDROXID , ANION , MESSEN , CHEMISCHE FAELLUNG

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