JpGU-AGU Joint Meeting 2017

講演情報

[EE] ポスター発表

セッション記号 H (地球人間圏科学) » H-TT 計測技術・研究手法

[H-TT22] [EE] Non destructive techniques applied to stone cultural heritages

2017年5月22日(月) 13:45 〜 15:15 ポスター会場 (国際展示場 7ホール)

コンビーナ:小口 千明(埼玉大学大学院理工学研究科)、Celine Elise Thomachot-Schneider(GEGENAA (Groupe d etude des geomateriaux et environnements naturels, anthropiques et arch?ologiques), EA3795, University or Reims (France))、Patricia V?zquez(GEGENAA - Universit? Reims-Champagne-Ardenne)、青木 久(東京学芸大学)

[HTT22-P02] Processes of structural deterioration of an abandoned old concrete bridge in Kozushima Island, facing the Pacific Ocean

筧 翔太2、*小口 千明1 (1.埼玉大学大学院理工学研究科、2.埼玉大学工学部)

キーワード:deterioration, weathering, Concrete, Kozushima Island

Many concrete structures face serious structural deterioration several decades after construction necessitating countermeasures. This study focuses on the impacts of weathering on the structural deterioration of concrete, by investigating a concrete bridge constructed around 1942. The bridge was used for transporting building stone in Kozushima-Island. The current physical and mechanical properties were investigated by non-destructive methods and chemical properties were analysed from small samples. The results shows that the central part of the bridge now has low strength as a result of sea-salt weathering under tidal conditions.