STUDY ON EFFECT OF SILANE TREATMENT SYSTEM TO REPAIR CONCRETE STRUCTURES DETERIORATED BY ALKALI-SILICA REACTION

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  • ASRにより劣化したコンクリート構造物のシラン系表面処理による補修効果の検討
  • ASR ニ ヨリ レッカ シタ コンクリート コウゾウブツ ノ シランケイ ヒョウメン ショリ ニ ヨル ホシュウ コウカ ノ ケントウ

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Abstract

Silane treatments which are typical hydrophobic treatment have been focused to be better performance in reducing alkali-silica expansion. However, the influence of water content of concrete on the effectiveness in reducing alkali-silica expansion by silane treatment system have not been investigated enough. In this study, silane treatments were applied on various water content of concrete and the effect of silane treatments to reduce alkali-silica expansion was discussed. Furthermore, quasi-actual size specimens were placed outdoors to take account of moisture transfer of concrete in the state of quasi-actual condition. The effect of silane treatment system to reduce alkali-silica expansion on quasi-actual specimens was investigated.

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