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Title |
Influence of Hydrostatic Pressure on Chloride Ion Penetration of Marine Concrete
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Authors |
김경태(Gyeong-Tae Kim) ; 김규용(Gyu-Yong Kim) ; 남정수(Jeong-Soo, Nam) ; 이보경(Bo-Kyeong Lee) ; 임창혁(Chang-Hyuck Lim) |
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DOI |
https://doi.org/10.11112/jksmi.2019.23.1.78 |
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Keywords |
해양 콘크리트 ; 정수압 ; 염화물이온침투 ; 모세관공극 Marine concrete ; Hydrostatic pressure ; Chloride ion penetration ; Capillary pore |
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Abstract |
The Marine concrete that located at immersion zone receives an hydrostatic pressure of 1 atm as depth of the water increased by 10 m. And it could accelerate chloride ion penetration. In this study, to evaluate the influence of hydrostatic pressure on chloride ion penetration, concrete mixed by ordinary Portland cement and Portland blast-furnace slag cement was exposed to 1 and 6 atm and substitute ocean water. As a result, the surface chloride ion concentration of the concrete under 6 atm of hydrostatic pressure increased rapidly and the water-soluble chloride ion contents was increased by depth. In addition, the concrete under 6 atm of hydrostatic pressure showed the increase of capillary pores corresponding to 5~100 nm.
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