논문 상세보기
pp.141-144
The durability degradation of concrete pavement by winter deicer is brought up as a significant risk, and its maintenance brings a high expense. Therefore, a proper repair materials for such concrete pavement are required. In this study, the properties of compressive strength, ability to resist chloride ion penetration, and dry shrinkage of Chemically bonded ceramics(CBC) and Calcium Sulfo Aluminate based ultra rapid harding cement(CSA) were assessed to evaluate its applicability as a repair material of concrete pavement road. As a result, the CBC mortar flow showed a 220㎜, and the initial setting time of CBC was 18 minutes. The compressive strength of CBC mortar was 31.3㎫ in 2 hours, 56.6㎫ in 24 hours, and 79.1㎫ in 28 days, showing a significant level. And the ability to resist chloride ion penetrations of CBC showed 433 Coulombs, which fell under very low level. The drying shrinkage of CBC mortar until 56 days was between 150 × 10-6 with -100 × 10-6, showing a significant very low level. As above, CBC has excellent compressive strength, chloride ion penetration resistance, and volume stability, and showed better performance than CSA. Therefore, CBC in the future could be used in repair of concrete pavement.
1. 서 론
2. 실험 계획 및 방법
2.1 실험계획
2.2 사용재료
2.3 실험방법
3. 실험결과
3.1 유동성 및 응결시간
3.2 압축강도
3.3 염소이온 침투저항성
3.4 길이변화
4. 결 론
References
