中庸熱ポルトランドセメントとフライアッシュを用いたコンクリートのコンクリート打重ね部に関する曲げ強度と中性化特性

抄録

The imperfect placing joint of concrete not only spoils the fine sight of a concrete structure, but has serious influence on the durability of concrete. In this study, the specimens of concrete which is used moderate heat cement and fly ash are prepared to have same compressive strength which is used normal portland cement, and the placing time interval and the placing method is selected as examination index. The quality of the placing joint of the concrete which is used moderate heat cement and fly ash is good as compared with that of ordinary portland cement.