Journal of the Architectural Institute of Korea Structure & Construction (대한건축학회논문집:구조계)

Architectural Institute of Korea (대한건축학회)
권호 표지
DOI QR코드

DOI QR Code

Field Application to Evaluate the Effect of Various Surface Covered Curing Blankets on Temperature Profile and Crack Occurrence of the Concrete under Hot Weather Condition

서중환경에서 표면피복 양생재 종류변화가 콘크리트의 초기 온도이력 및 균열발생에 미치는 영향에 관한 현장적용성 평가

  • Received : 2018.03.05
  • Accepted : 2018.05.09
  • Published : 2018.05.30
⟨ Previous Next ⟩

Abstract

Concrete placed under hot weather condition suffers from larger slump loss, rapid moisture evaporation due to high air temperature. Proper measures for material, transportation and curing should be taken to prevent the quality deterioration of the concrete under hot weather condition. In Korea, Although the period of hot weather concrete in Korea occupies only 2 months, there are a lot of quality problems including plastic, drying shrinkage and cold joint. Therefore, the objective of this paper is to investigate and compare the temperature history and crack occurrence of the concrete, which was placed in the actual apartment house construction field under hot weather condition, in response to the application of surface covered curing blankets including PE film, single layer clear bubble sheet, white colored bubble sheet and aluminum metalized bubble sheet. Test results indicated that the application of white colored bubble sheet and aluminum metalized bubble sheet showed most favorable results in terms of reduction in temperature rise and crack occurrence as well as easiness in handling. But, due to light reflection by aluminum metalized bubble sheet, it is believed that white colored bubble sheet is preferable.

Keywords

References

  1. Korea Concrete Institute (2016). Concrete Standard Specification, Hot weather concrete,
  2. Han, MC., Han, CG., & Baek, DH. (2012). 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, 25(12), 105-112.
  3. Jang, DB., & Choi, HG. (2011). 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 Structure & Construction, 27(11), 169-176.
  4. Lee, JG., & Han, CG. (2016). Reduction of Concrete Cracking by Various Surface-Covered Curing Materials, Journal of the Architectural Institute of Korea Structure & Construction, 32(5), 29-36. https://doi.org/10.5659/JAIK_SC.2016.32.5.29
  5. Lee, JS., Kim, JB., Yoo, SY., Han, MC., & Han, CG. (2006). Effect of the Surface Curing Sheet Using Bubble Sheet and Aluminum Foil on Temperature Profile of Concrete at Hot Weather, 2006 Fall Conference of the Architectural Institute of Korea, 26(1), 337-340.
  6. Lee, JG., & Han, CG. (2016). Plastic and Drying Shrinkage Cracking Reduction by the Bubble Sheet Curing, Journal of the Korea Institute of Building Construction, 16(3), 211-217. https://doi.org/10.5345/JKIBC.2016.16.3.211
  7. Ryu, TH., & Um, JS. (2011). Comparative Evaluation for Indoor Summer Temperature of Top Floor According to Rooftop's Color, Fall Conference of the Korean Society for GeoSpatial Information Science, 104-107.