DOI QR코드

DOI QR Code

Development of Efficient Curing Sheet for Thermal Insulation Curing of Concrete in Cold Weather

  • Han, Cheon-Goo (Department of Architectural Engineering, Cheongju University) ;
  • Son, Myung-Sik (Construction Headquarters, Samsung Medical Center) ;
  • Choi, Hyun-Kyu (Department of Architectural Engineering, Cheongju University)
  • 투고 : 2012.01.03
  • 심사 : 2012.04.13
  • 발행 : 2012.06.20

초록

For cold weather concreting, frost damage at early age is generated in the concrete, and problems such as delaying of setting and hardening and lowering of strength manifestation emerge due to the low outside air temperature at the early stage of pouring, making the selection of an effective curing method critically important. Unfortunately, the tent sheet currently used as the curing film for heating insulation at work sites, not only has the problems of inferior permeability and extremely deteriorated airtightness, but a phenomenon of continuous fracturing is also generated along the direction of fabric of the material itself, presenting difficult circumstances for maintaining adequate curing temperature. The aim of this study was to develop an improved bubble sheet type curing film for heating insulation of cold weather concrete by combining mesh-tarpaulin, which has excellent tension properties, with bubble sheet, which offers superior insulation performance. The analysis showed that the improved curing film in which BBS1 is stacked to MT was a suitable replacement for curing films currently in use, as it has better permeability, tension property, and insulation performance than the T type film used at work sites today.

키워드

참고문헌

  1. Jang DB, Choi HK. Performance Evaluation by Field Application of Improved Bubble Sheet for Heating Insulation Curing Sheet of Cold Weather Concrete. Journal of the architectural institute of korea. 2011 Nov;27(11):169-76.
  2. Han CG, Han MC. Determination of the Protecting Periods of Frost Damage at Early Age in Cold Weather Concreting. Journal of the korea concrete institute. 2000 Jan;12(3):47-55.
  3. Han CG, Han MC, Kim MH. A Study on the Determination of the Period of Cold Weather Concreting on Architectural Execution in Korea. Journal of the architectural institute of korea. Structure & construction. 1998 Nov;14(11):71-8.
  4. Choi IH, Park JH, Lee JH, Kim HL, Lee DB, Hong SC. A Mock-Up Test for the Curing Method of Cold Weather Concreting in Kimpo Homeplus. Journal of the korea concrete institute. 2001 May;13(03):83-91.
  5. Han CG, Han MC, Kim J, Beak DH, Lee IS, Hong SM. Field Application of Insulation Curing Method with Double Bubble Sheets Subject to Cold Weather. Journal of the korea institute of building construction. 2009 May;09(01):25-8.
  6. Han CG, Han MC, Kim J, Beak DH. Establishment of the Method for Cost Effective Heat Supplying Curing Applying Double Layer Bubble Blanket Subjected to Cold Climate. Journal of the architectural institute of korea. Structure & construction. 2009 Dec;25(12):105-12.
  7. Han MC. Determination of the Period of Mild Freezing and Frost Action in Cold Weather Concrete Period in Korea. Journal of the architectural institute of korea. Structure & construction 2009 Mar;25(03):69-77.
  8. Korea Industrial Standard. [Testing methods for mechanical characteristics of polyethlene film (KS M 3001)]. Seoul (Korea): Korea Industrial Standard; 2006. Korean.
  9. Korea Industrial Standard. [Testing methods for thermal transmission properties of thermal insulations (KS L 9016)]. Seoul (Korea): Korea Industrial Standard; 2010. Korean.
  10. William D, Callister, David G, Rethwisch. Fundamentals of Materials Science and Engineering, 8e. 2011.