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Effectiveness of LiOH in inhibiting alkali-aggregate reaction and its mechanism

Mo, I. X. Y. / Xu, Z. Z. / Wu, K. R. / Tang, M. S.

Abstract A practical alkali-reactive aggreagate—Beijing Aggregate—was used to test the long-term effectiveness of LiOH in inhibiting alkali-aggregate reaction expansion. In this paper, not only the most rigorous conditions, such as the mortar bars being cured at 80°C, for 3 years after autoclaved 24 hours at 150°C, but also the 20°C long-term curing condition, were designed. At these conditions, LiOH was also able to inhibit ASR expansion long-term effectively. Not only the relationship between molar ratio of n(Li)/n(Na) and the alkali contents in systems was established, but also the governing mechanism of such effects was also studied by SEM and EDS.

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Effectiveness of LiOH in inhibiting alkali-aggregate reaction and its mechanism

Mo, I. X. Y. / Xu, Z. Z. / Wu, K. R. / Tang, M. S.

Abstract A practical alkali-reactive aggreagate—Beijing Aggregate—was used to test the long-term effectiveness of LiOH in inhibiting alkali-aggregate reaction expansion. In this paper, not only the most rigorous conditions, such as the mortar bars being cured at 80°C, for 3 years after autoclaved 24 hours at 150°C, but also the 20°C long-term curing condition, were designed. At these conditions, LiOH was also able to inhibit ASR expansion long-term effectively. Not only the relationship between molar ratio of n(Li)/n(Na) and the alkali contents in systems was established, but also the governing mechanism of such effects was also studied by SEM and EDS.

Effectiveness of LiOH in inhibiting alkali-aggregate reaction and its mechanism

Mo, I. X. Y. / Xu, Z. Z. / Wu, K. R. / Tang, M. S.

Abstract A practical alkali-reactive aggreagate—Beijing Aggregate—was used to test the long-term effectiveness of LiOH in inhibiting alkali-aggregate reaction expansion. In this paper, not only the most rigorous conditions, such as the mortar bars being cured at 80°C, for 3 years after autoclaved 24 hours at 150°C, but also the 20°C long-term curing condition, were designed. At these conditions, LiOH was also able to inhibit ASR expansion long-term effectively. Not only the relationship between molar ratio of n(Li)/n(Na) and the alkali contents in systems was established, but also the governing mechanism of such effects was also studied by SEM and EDS.

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Titel:

Effectiveness of LiOH in inhibiting alkali-aggregate reaction and its mechanism

Beteiligte:

Mo, I. X. Y. (Autor:in) / Xu, Z. Z. (Autor:in) / Wu, K. R. (Autor:in) / Tang, M. S. (Autor:in)

Erschienen in:

Materials and Structures ; 38

Erscheinungsdatum:

2005

ISSN:

DOI:

https://doi.org/10.1007/BF02480575

Medientyp:

Aufsatz (Zeitschrift)

Format:

Print

Sprache:

Englisch

Schlagwörter:

LiOH , Reactive Aggregate , Alkali Content , Lithium Compound , Chinese Ceramic Society

Klassifikation:

BKL: 56.45 Baustoffkunde / 51.30 Werkstoffprüfung, Werkstoffuntersuchung
Lokalklassifikation TIB: 275/6500 / 250/6500

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