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

Takeshi Hibino, Naomitsu Tsuyuki, Hideki Ishida

研究成果: Article査読

2 被引用数 (Scopus)

抄録

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.

本文言語English
ページ(範囲)1522-1524
ページ数3
ジャーナルJournal of the American Ceramic Society
77
6
出版ステータスPublished - 1994 6月

ASJC Scopus subject areas

  • セラミックおよび複合材料

フィンガープリント

「Effect of treatment of reactive aggregate by H2O2 on the alkali-silica reaction」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル