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Steam-cured concrete incorporating mineral admixtures

Ho, D.W.S. / Chua, C.W. / Tam, C.T.

This paper explores the potential benefits of steam-cured concrete, particularly on mixes incorporating mineral admixtures. Twenty mixes with various combinations of Portland cement, fly ash (FA), slag and silica fume (SF) were investigated. For each mix, specimens were either standard-cured in a water bath of 27 degree C or steam-cured at 55 degree C maximum temperature over 8 h. For the materials and test conditions reported in this study, it was found that steam-cured concretes were more porous as indicated by the much higher sorptivity values compared with standard-cured specimens. Mixes with SF have the best performance and hold promise in precast manufacturing due to their high early strength development and low sorptivity values.

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Steam-cured concrete incorporating mineral admixtures

Ho, D.W.S. / Chua, C.W. / Tam, C.T.

This paper explores the potential benefits of steam-cured concrete, particularly on mixes incorporating mineral admixtures. Twenty mixes with various combinations of Portland cement, fly ash (FA), slag and silica fume (SF) were investigated. For each mix, specimens were either standard-cured in a water bath of 27 degree C or steam-cured at 55 degree C maximum temperature over 8 h. For the materials and test conditions reported in this study, it was found that steam-cured concretes were more porous as indicated by the much higher sorptivity values compared with standard-cured specimens. Mixes with SF have the best performance and hold promise in precast manufacturing due to their high early strength development and low sorptivity values.

Steam-cured concrete incorporating mineral admixtures

Ho, D.W.S. / Chua, C.W. / Tam, C.T.

This paper explores the potential benefits of steam-cured concrete, particularly on mixes incorporating mineral admixtures. Twenty mixes with various combinations of Portland cement, fly ash (FA), slag and silica fume (SF) were investigated. For each mix, specimens were either standard-cured in a water bath of 27 degree C or steam-cured at 55 degree C maximum temperature over 8 h. For the materials and test conditions reported in this study, it was found that steam-cured concretes were more porous as indicated by the much higher sorptivity values compared with standard-cured specimens. Mixes with SF have the best performance and hold promise in precast manufacturing due to their high early strength development and low sorptivity values.

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Title:

Steam-cured concrete incorporating mineral admixtures

Contributors:

Ho, D.W.S. (author) / Chua, C.W. (author) / Tam, C.T. (author)

Published in:

Cement and Concrete Research ; 33 ; 595-601

Publication date:

2003

Size:

7 Seiten, 21 Quellen

ISSN:

DOI:

https://doi.org/10.1016/S0008-8846(02)01028-1

Type of media:

Article (Journal)

Type of material:

Print

Language:

English

Keywords:

Portlandzement , Flugasche , Dauerhaftigkeit , Dampfdruck (Mechanik) , Beton , Mikrosilica , Zuschlagstoff , Abbinden von Zement

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