농업용 콘크리트 구조물을 위한 라텍스 개질 보수용 모르타르의 적정 배합비 도출
Optimum Mix Proportion of Latex Modified Repair Mortar for Agricultural Concrete Structures
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Abstract
The service life of agricultural concrete structures is designed in about 30 to 100 years, but actual service life is estimated in an average 18 years. Therefore, as the service life of the agricultural concrete structures increases, necessity of repair by aging from various environment condition exposure increases.This study was to determinate the optimum mix proportion of latex modified repair mortar and to improve the durability performance of agricultural concrete structures. The physical and mechanical tests of latex modified repair mortar were performed. Tests of flow, compressive strength, flexural strength and bond strength tests were conducted. Test results show that the optimum mix proportion of latex modified repair mortar, when used in 5% latex volume fraction (weight of cement), 1.5% antifoaming agent (weight of latex), 0.2% PVA fiber volume fraction, 1:2 (binder-sand ratio), 10% silica fume replacement ratio (weight of cement), could result in best performance for the repair of agricultural concrete structures.
참고문헌 (9)
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