Evaluation of Synergistic Effects due to Penetration of Chloride Ion into Concrete and Carbonation

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  • Sakai Koji
    香川大学 工学部工学部安全システム建設工学科
  • Omori Masaki
    株式会社 間組 横浜支店土木部
  • Boulfiza Mohamed
    Department of Civil Engineering, University of Saskatchewan, Associate Prof.

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Other Title
  • コンクリートへの塩化物イオンの侵入と中性化による複合作用の評価に関する研究
  • コンクリート エ ノ エンカブツ イオン ノ シンニュウ ト チュウセイカ ニ ヨル フクゴウ サヨウ ノ ヒョウカ ニ カンスル ケンキュウ

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The study on quantitative evaluation with concrete about synergistic effect of penetration of chloride ion and carbonation, is very few. This study was conducted to get information on synergistic effects of penetration and diffusion of chloride ion into concrete and carbonation and to examine evaluation method of synergistic effects of penetration of chloride ion and carbonation. The test results indicated chloride ions in concrete diffused inside by carbonation and chloride ions penetrated for longer term than actual exposure term were accumulated. And so we introduced a coefficient k to consider the effect of carbonation in diffusion equation which is based on the Fick's second law.

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