Effect of treatment of reactive aggregate by H2O2 on the alkali-silica reaction

Takeshi Hibino; Naomitsu Tsuyuki; Hideki Ishida

Effect of treatment of reactive aggregate by H₂O₂ on the alkali-silica reaction

Takeshi Hibino, Naomitsu Tsuyuki, Hideki Ishida

Environmental Studies

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

A method of controlling the alkali-silica reaction by treating a reactive aggregate with a solution of hydrogen peroxide was investigated. Mortar bars made using the hydrogen peroxide-treated aggregate exhibited no expansion after 12 months, indicating that the alkali-silica reaction was suppressed. Study of the state of bonding of Si in the aggregate using XPS showed that the Si-O bond energy indicating glassy SiO₂ (102.7 eV) before treatment had changed to crystalline SiO₂ (103.2 eV) after hydrogen peroxide treatment. This indicates that the strong oxidizing potential of hydrogen peroxide stabilizes the silica in the reactive aggregate and thus suppresses the alkali-silica reaction.

Original language	English
Pages (from-to)	1522-1524
Number of pages	3
Journal	Journal of the American Ceramic Society
Volume	77
Issue number	6
Publication status	Published - 1994 Jun

ASJC Scopus subject areas

Ceramics and Composites

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title = "Effect of treatment of reactive aggregate by H2O2 on the alkali-silica reaction",

abstract = "A method of controlling the alkali-silica reaction by treating a reactive aggregate with a solution of hydrogen peroxide was investigated. Mortar bars made using the hydrogen peroxide-treated aggregate exhibited no expansion after 12 months, indicating that the alkali-silica reaction was suppressed. Study of the state of bonding of Si in the aggregate using XPS showed that the Si-O bond energy indicating glassy SiO2 (102.7 eV) before treatment had changed to crystalline SiO2 (103.2 eV) after hydrogen peroxide treatment. This indicates that the strong oxidizing potential of hydrogen peroxide stabilizes the silica in the reactive aggregate and thus suppresses the alkali-silica reaction.",

author = "Takeshi Hibino and Naomitsu Tsuyuki and Hideki Ishida",

year = "1994",

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AU - Hibino, Takeshi

AU - Tsuyuki, Naomitsu

AU - Ishida, Hideki

PY - 1994/6

Y1 - 1994/6

N2 - A method of controlling the alkali-silica reaction by treating a reactive aggregate with a solution of hydrogen peroxide was investigated. Mortar bars made using the hydrogen peroxide-treated aggregate exhibited no expansion after 12 months, indicating that the alkali-silica reaction was suppressed. Study of the state of bonding of Si in the aggregate using XPS showed that the Si-O bond energy indicating glassy SiO2 (102.7 eV) before treatment had changed to crystalline SiO2 (103.2 eV) after hydrogen peroxide treatment. This indicates that the strong oxidizing potential of hydrogen peroxide stabilizes the silica in the reactive aggregate and thus suppresses the alkali-silica reaction.

AB - A method of controlling the alkali-silica reaction by treating a reactive aggregate with a solution of hydrogen peroxide was investigated. Mortar bars made using the hydrogen peroxide-treated aggregate exhibited no expansion after 12 months, indicating that the alkali-silica reaction was suppressed. Study of the state of bonding of Si in the aggregate using XPS showed that the Si-O bond energy indicating glassy SiO2 (102.7 eV) before treatment had changed to crystalline SiO2 (103.2 eV) after hydrogen peroxide treatment. This indicates that the strong oxidizing potential of hydrogen peroxide stabilizes the silica in the reactive aggregate and thus suppresses the alkali-silica reaction.

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M3 - Article

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VL - 77

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JO - Journal of the American Ceramic Society

JF - Journal of the American Ceramic Society

SN - 0002-7820

IS - 6

ER -

Effect of treatment of reactive aggregate by H2O2 on the alkali-silica reaction

Abstract

ASJC Scopus subject areas

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Effect of treatment of reactive aggregate by H₂O₂ on the alkali-silica reaction