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Title |
A Study on the Durability of Concrete Curb-butters Considering Environment of Combined Deterioration in Winter Season
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Authors |
김진만(Jin-Man Kim) ; 최선미(Sun-Mi Choi) ; 최홍범(Hong-Beom Choi) ; 전명훈(Myoung-Hoon Jun) ; 권석민(Suk-Min Kwon) |
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DOI |
https://doi.org/10.4334/JKCI.2018.30.5.533 |
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Keywords |
L형 측구 ; 동결융해 저항성 ; 스케일링 저항성 ; 기포간격계수 ; 공극구조 Concrete curb-butter ; freezing and thawing ; Scaling resistance ; Spacing factor ; Pore structure |
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Abstract |
Concrete curb-butters suffer significantly reduced durability because they are intensively exposed to frost damage and chloride attack in the winter. In this study, to select a suitable mix design in an environment of combined deterioration,a scaling resistance test is conducted with compressive strength and air content as variables It is found that moist curing is important in the initial curing to secure durability and that it is required to raise the standard value for air content to 5 % and compressive strength to 27 MPa as standards for the mix proportion of concrete curb-butters. In addition, it is necessary to consider proposing the standard value of the spacing factor, instead of the standard value of the air content, simply.
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