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Microstructural changes in concretes with sulfate exposure

Brown, Paul / Hooton, R.D. / Clark, Boyd

AbstractIn prior papers the responses of concretes to 50,000 ppm MgSO4 exposure depending on cement type, w/cm and the presence of slag were described. The present paper completes this analysis by examining the effects of immersion of concretes produced using slag blended cements, in solutions containing 50,000 ppm of sodium sulfate. The spatial evolution of microstructure associated with carbonation and sulfate attack show differences which can be related to the nature of the cation associated with the sulfate, the cement type, and the w/cm ratio.

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Microstructural changes in concretes with sulfate exposure

Brown, Paul / Hooton, R.D. / Clark, Boyd

AbstractIn prior papers the responses of concretes to 50,000 ppm MgSO4 exposure depending on cement type, w/cm and the presence of slag were described. The present paper completes this analysis by examining the effects of immersion of concretes produced using slag blended cements, in solutions containing 50,000 ppm of sodium sulfate. The spatial evolution of microstructure associated with carbonation and sulfate attack show differences which can be related to the nature of the cation associated with the sulfate, the cement type, and the w/cm ratio.

Microstructural changes in concretes with sulfate exposure

Brown, Paul / Hooton, R.D. / Clark, Boyd

AbstractIn prior papers the responses of concretes to 50,000 ppm MgSO4 exposure depending on cement type, w/cm and the presence of slag were described. The present paper completes this analysis by examining the effects of immersion of concretes produced using slag blended cements, in solutions containing 50,000 ppm of sodium sulfate. The spatial evolution of microstructure associated with carbonation and sulfate attack show differences which can be related to the nature of the cation associated with the sulfate, the cement type, and the w/cm ratio.

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Title:

Microstructural changes in concretes with sulfate exposure

Contributors:

Brown, Paul (author) / Hooton, R.D. (author) / Clark, Boyd (author)

Published in:

Cement and Concrete Composites ; 26 ; 993-999

Publication date:

2004-01-01

Size:

7 pages

ISSN:

DOI:

https://doi.org/10.1016/j.cemconcomp.2004.02.033

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

English

Keywords:

Ettringite , Thaumasite , Cement type , w/cm Ratio

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