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Investigation of Portland slag cement activated by waterglass

Roy, S. / Chanda, S. / Bandopadhyay, S.K. / Ghosh, S.N.

The relatively poor reactivity of Indian BF slags results in lower strength of slag cement in comparison to OPC. In this investigation, a dosage of waterglass as an activator has been optimized. Percentage substitution of slag, concentration of waterglass, and their effects on properties of activated PSC have been studied. Up to 60% slag substitution and use of 1% waterglass as activator have yielded the best results. The activator has also acted as a grinding aid. Long-term storage of activated slag cement has been found to be detrimental.

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Investigation of Portland slag cement activated by waterglass

Roy, S. / Chanda, S. / Bandopadhyay, S.K. / Ghosh, S.N.

The relatively poor reactivity of Indian BF slags results in lower strength of slag cement in comparison to OPC. In this investigation, a dosage of waterglass as an activator has been optimized. Percentage substitution of slag, concentration of waterglass, and their effects on properties of activated PSC have been studied. Up to 60% slag substitution and use of 1% waterglass as activator have yielded the best results. The activator has also acted as a grinding aid. Long-term storage of activated slag cement has been found to be detrimental.

Investigation of Portland slag cement activated by waterglass

Roy, S. / Chanda, S. / Bandopadhyay, S.K. / Ghosh, S.N.

The relatively poor reactivity of Indian BF slags results in lower strength of slag cement in comparison to OPC. In this investigation, a dosage of waterglass as an activator has been optimized. Percentage substitution of slag, concentration of waterglass, and their effects on properties of activated PSC have been studied. Up to 60% slag substitution and use of 1% waterglass as activator have yielded the best results. The activator has also acted as a grinding aid. Long-term storage of activated slag cement has been found to be detrimental.

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Title:

Investigation of Portland slag cement activated by waterglass

Contributors:

Roy, S. (author) / Chanda, S. (author) / Bandopadhyay, S.K. (author) / Ghosh, S.N. (author)

Published in:

Cement and Concrete Research ; 28 ; 1049-1056

Publication date:

1998

Size:

8 Seiten, 5 Quellen

ISSN:

DOI:

https://doi.org/10.1016/S0008-8846(98)00069-6

Type of media:

Article (Journal)

Type of material:

Print

Language:

English

Keywords:

Schlackenzement , chemische Aktivierung , Substitutionsreaktion , Konzentrationseinfluss , Werkstoffprüfung , Aktivierungsmittel

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