A Study on the Improvement of Thermal Curing Performance of Concrete Using Hot Air Blower

열풍기 이용 콘크리트 보온양생 성능 개선 방안 분석

  • 최지수 (부경대학교 대학원 건축.소방공학부) ;
  • 김상엽 (부경대학교 대학원 건축.소방공학부) ;
  • 송진희 ((주)롯데건설 기술연구원) ;
  • 조홍범 ((주)롯데건설 기술연구원) ;
  • 이규남 (부경대학교 건축공학과)
  • Published : 2022.04.20

Abstract

In winter, low outdoor temperature can casue reduction of concrete strength. Therefore, thermal protection is required when curing concrete in winter to maintain a certain level or higher surface temperature. Accordingly, in domestic construction sites, a curing method in which surrounds casting areas by tents and operates hot air blowers are widely applied. However, local low-temperature areas may occur due to airtightness of the curing tents. If additional heat is supplied to prevent occurrence of local low-temperature areas, energy consumption increases. Therefore in this study, a plan for improvement method of concrete curing was considered and the performance was evaluated through numerical analysis. A plan to improve the airtightness of the wall opening was applied, but the analysis showed that if only a part of the curing area is shielded, the temperature of the unshielded area decreases,making it inappropriate to improve curing performance.

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Acknowledgement

이 연구는 2020년도 (주)롯데건설의 연구비 지원에 의한 결과의 일부임.