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.

Most apartment houses have been constructed with concrete structures. However, underground parking lots and rooftops in apartment buildings frequently have cracks due to drying shrinkage and various degradation factors. The leakage caused by this cracks has a problem that the durability of the structure and the waterproof performance is deteriorated. Therefore, the development of a proper crack repairing materials is continuously required. The purpose of this study is to apply chemically bonded ceramics (CBC) as a repair material to repair cracks in concrete, which has strong adhesion, durability, rapid hardening performance. Therefore, it was applied to the roof crack of the apartment(mock-up test) and the performance was evaluated. As a result, the compressive strength and the bond strength showed excellent performance. In the case of the dry shrinkage characteristics, the performance was stable in the range of -35 to 43 × 10 -6 until 20 days of age. In addition, the mock-up test results showed good workability and surface condition, and surface polishing is possible after 2 hours of consruction, which is considered to be very effective for Reducing work time.