한국건축시공학회지 (Journal of the Korea Institute of Building Construction)

  • 제13권6호
  • /
  • Pages.513-521
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  • 2013
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  • 1598-2033(pISSN)
  • /
  • 2233-5706(eISSN)
한국건축시공학회 (The Korean Institute of Building Construction)
권호 표지
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The Effect of Heat Curing Methods on the Protection against Frost Damage at Early Age of the Concrete Under Extremely Cold Climate

  • Jung, Eun-Bong (Department of Architectural Engineering, Cheong-Ju University) ;
  • Shin, Hyun-Sup (Lafarge Halla Cement Sales Division Jungbu Office) ;
  • Han, Min-Cheol (Department of Architectural Engineering, Cheong-Ju University)
  • 투고 : 2013.04.19
  • 심사 : 2013.10.01
  • 발행 : 2013.12.20
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초록

This study aimed to examine whether heat curing methods of concrete subjected to $-10^{\circ}C$ could be effective by varying the combination of heating cable and surface heat insulations. Three different concrete specimens incorporating 30% fly ash with 50% W/B were fabricated to simulate wall, column and slab members with dimensions of $1600{\times}800{\times}200$ mm for slab, $800{\times}600{\times}200$ mm for wall and $800{\times}800{\times}800$ mm for column. For heat curing combinations, Type-1 specimens applied PE film for slab, plywood for wall and column curing. Type-2 specimens applied double layer bubble sheet (2LB) and heating coil for slab, and 50 mm styrofoam for wall and column curing. Type-3 specimen applied 2LB for slab, electrical heating mat for wall and column inside heating enclosure. The test results revealed that the temperature of Type 1 specimen dropped below $0^{\circ}C$ beginning at 48 hours after placement due to its poor heat insulating capability. Type 2 and 3 specimens maintained a temperature of around $5{\sim}10^{\circ}C$ after placement due to favorable heat insulating and thermal resistance.

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참고문헌

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피인용 문헌

  1. Prevention of Early Frost Damage of the Concrete under Severely Low Temperature according to Heat Curingmethods vol.16, pp.1, 2016, https://doi.org/10.5345/JKIBC.2016.16.1.067