수중에 노출된 농업용 콘크리트 구조물 보수용 라텍스개질 모르타르의 적정 배합비 도출Optimum Mix Proportions of Latex Modified Repair Mortar for Agricultural Underwater Concrete Structure
Optimum Mix Proportions of Latex Modified Repair Mortar for Agricultural Underwater Concrete Structure
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초록
본 논문에서는 수중에 노출된 농업용 콘크리트 구조물의 보수를 위한 라텍스 개질 보수용 모르타르의 적정 배합비를 도출하였다. 이를 위하여 라텍스 혼입량, 시멘트-잔골재 비, 수중불분리성 혼화제의 혼입량 등을 변수로 하여 수중환경에서 영향을 미치지 않으면서도 충분한 보수 성능을 발휘할 수 있는 배합비를 결정하였으며, 시험을 통한 결론은 다음과 같다.
Abstract
The purpose of this study was to determine the optimum mix proportion of latex modified mortar for agricultural underwater concrete structures repair. The experimental variables included a latex and antiwashout admixture amount, binder-sand ratio, water-binder ratio. This study were evaluated a repair performance and environment effect of latex modified repair mortar for agricultural underwater concrete structures. The pH test was conducted to evaluated the environmental effect and the flow test was peformed to evaluated the workability. Also, compressive, flexural and bond tests were conducted. Test results show that the optimum mix proportion of latex modified repair mortar for agricultural underwater concrete structures, was achieved by 1:1.5 binder-sand ratio, 5% latex ratio (weight of binder), 1.3% antiwashout admixture ratio (weight of binder), 0.33 water-binder ratio and 10% silica fume replacement ratio (weight of cement). The environmental effect and repair performance of optimum mix proportion satisfied all target performance.
참고문헌 (12)
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