| Title |
The Bond Characteristics of Deformed Bars in High Flowing Self-Compacting Concrete |
| Keywords |
high flowing;self-compacting concrete;bond characteristics;compressive strength level;pullout test;고유동;자기충전 콘크리트;부착특성;압축강도수준;인발실험 |
| Abstract |
This study was intended to compare and evaluate the adhesion of High flowing Self-compacting Concrete (HSCC), Conventional Concrete (CC) and deformed bar based on concrete strength 3 (30, 50 and 70 ㎫), among the factors affecting the bond strength between concrete and rebar, after fabricating the specimen by modifying the rebar position at Horizontal reinforcement at bottom position (HB), horizontal reinforcement at top position (HT) and vertical reinforcement type (V). As a result of measuring bond strength of HB/HT rebar to evaluate the factor of the rebar at top position, the bond strength of HB/HT rebar at 50 and 70 ㎫ was 1.3 or less and at 30 ㎫, HSCC and CC appeared to be 1.2 and 2,1, respectively. Thus, when designing the anchorage length according to the concrete structure design standard (2007) at HSCC 30, 50 and 70 ㎫, it would be desirable to reduce the correction factor of anchorage length of the horizontal reinforcement at top position, which is suggested for the reinforcement at top position, to less than 1.3 of CC. |