PURPOSES: The objective of this study is to evaluate the durable performance of combined organic and inorganic hybrid mortar as repair material (HRM mortar) for concrete road facilities via comparison with that of cement repair materials (IRM mortar).
METHODS : To produce HRM mortars, inorganic materials as binder and 2 mineral fillers were adopted. The ratio of main resin versus hardener was fixed at 1:2. For comparison, IRM mortars made with cement repair materials were also manufactured. Compressive, flexural, and bonding strengths were measured at predetermined periods. For durability assessment, the scaling resistance, freezing & thawing resistance, rapid chloride penetration resistance, and acid attack resistance of those mortars were experimentally monitored.
RESULTS: The durability performances of HRM mortars, especially with respect to freezing & thawing, rapid chloride penetration and acid attack, were identified to be much better than those of IRM mortars. This result implies that HRM is a highly promising and versatile material because of its excellent durability.
CONCLUSIONS: It is concluded that the application of the combined organic and inorganic hybrid mortars is possibly an option for the repair of concrete road facilities exposed to aggressive environments.

ABSTRACT
1. 연구배경 및 목적
2. 실험개요
    2.1. 사용재료
    2.2. 배합 및 시험체 제작
    2.3. 실험방법
3. 실험결과 및 고찰
    3.1. 강도 특성
    3.2. 스케일링 저항성
    3.3. 동결융해 저항성
    3.4. 염소이온 침투저항성
    3.5. 산침식 저항성
4. 결론 및 요약
REFERENCES

• 이승태(군산대학교 토목공학과) | Lee Seung-Tae 교신저자
• 황재남(군산대학교 토목공학과) | Hwang Jae-Nam
• 신동혁(군산대학교 토목공학과) | Shin Dong-Hyeok