乾燥収縮を抑制した再生コンクリートを用いた梁部材の付着割裂強度に関する実験的研究

概要

論文の詳細を見る
The bond splitting strength of beams with recycled aggregate concrete was investigated. Since the rate of water absorption of recycled aggregate in recycled aggregate concrete is large, drying shrinkage cracks tend to occur. These drying shrinkage cracks are closely related to drying shrinkage percentage. So in this research, recycled aggregate concrete to which a shrinkage reducing agent was added to control the drying shrinkage percentage was used. As a result, the drying shrinkage percentage of recycled aggregate concrete containing the shrinkage reducing agent was smaller than that without the agent, confirming the effect of the agent. In beams made with recycled coarse aggregate containing the agent, few drying shrinkage cracks occurred. The bond splitting strength of lap splices was examined. The bond splitting strength with recycled coarse aggregate increased when the shrinkage reducing agent was added because concrete strength increased.
社団法人日本建築学会の論文
2005-09-30