所報 103
13/50

-  -11Published PaperProposition of Thin-Layer Repairing Methods Using Low-Elasticity Polymer Portland Cement Materials and Glue and Study on the Fatigue Resistance of Reinforced Concrete SlabTadashi ABE, Kiyoshi ITO, Noriyuki KOZAKAI, and Takayoshi KODAMAIn this repair method, two types of adhesives, such as a penetrable adhesive and a high-durability adhesive, were applied to the adhesion interface of the materials to be repaired, and then cast. The repair method was then evaluated for fatigue resistance using wheel load running tests. It was developed to ensure the long-term integrity of the repair material and RC slabs. The results of the experiments conrmed that this repair method provides signicantly better fatigue resistance than the conventional construction method. Moreover, this study proposes two wet repair cycles and one dry repair cycle with reinforcement measures to improve the load-bearing performance.Keywords: RC slab,Low elasticity PCM,Thin-layer repair ,Repair cycle,Fatigue Resistance低弾性ポリマーセメントモルタルおよび接着剤を用いたRC床版の薄層補修法および耐疲労性の評価 付着界面に浸透性接着剤および高耐久性接着剤の2種類の接着剤を塗布してから補修材を打設する補修工法について輪荷重走行疲労実験により疲労耐性を評価した。この補修方法は、補修箇所がRC床版と長期的にわたり一体性を確保することを目標として開発した。そして、この補修工法が従来工法に比べて耐疲労性が大幅に向上することを確認できた。また、本研究における補修サイクルは湿潤条件で2サイクルと乾燥条件での1サイクルをおこない、耐疲労性向上させる補強対策を提案する。キーワード:RC床版,低弾性PCM,薄層補修,補修サイクル,耐疲労性Journal (掲載誌)International Journal of Polymer Science, Volume 2018, Article ID 6545097, 8 pages, https://doi.org/10.1155/2018/6545097

元のページ  ../index.html#13

このブックを見る