DOI QR코드

DOI QR Code

A Study on the Estimation of Compressive Strength of Ultra-High Strength Concrete Cured in Different Temperature Using Warm Water Method

온수양생 시 양생온도에 따른 초고강도 콘크리트의 강도 조기 추정에 관한 연구

  • Published : 2013.05.25

Abstract

In this study, expedite curing period at curing temperature being 40, 60, $80^{\circ}C$ similar to strength of standard 28days curing temperature to confirm methods and applicability of early estimation of strength by warm water curing. Also, checked the effect related to different conditions such as using various kinds of material, differentiating quantity of material, with or without fiber mixing at same rate of water-bonding material. Existing method proposed by KS and JIS to estimate strength of 28 days standard curing temperature curing for 7days at $40^{\circ}C$ is not relevant because it takes so long to estimate strength. Already known method of estimating strength of 28days standard curing temperature curing for 3days in $60^{\circ}C$ warm water, too, is not relevant to apply 3day cycle of super high-rise. It also had the problem which didn't consider fiber mixed concrete. According to the result of experiment, traits and rate of strength revelation were different relating to the kinds and quantity of bonding material. Strength value of mix without fiber was higher than that of mix with fiber, but without any relation to that, over 96% of similar confidence level with strength of 28 days standard curing temperature was shown in 7 days at $40^{\circ}C$, 3 days at $60^{\circ}C$, 2days at $80^{\circ}C$. Confidence level of estimation method of 2 days at $80^{\circ}C$ was similar to those of estimation methods of 4 days at $40^{\circ}C$, 3 days at $60^{\circ}C$, so it(2 days at $80^{\circ}C$) is regarded as the most relevant method because it's possible to estimate strength fastly. As a result it can be said that early quality control of recently increasing super high-rise may be possible through estimation method of 2 days at $80^{\circ}C$.

Keywords

References

  1. 정상진 외 5인, 마이크로파 가열기법에 의한 고강도콘크리트의 조기강도추정에 관한 실험적 연구, 대한건축학회논문집, 2003, 제 19권 5호, pp.79-86
  2. 정상진 외 5인, 온수양생을 이용한 초고강도 콘크리트의 강도 조기 추정에 관한 실험적 연구, 대한건축학회논문집, 2011, 제 27권 5호, pp.93-100
  3. KS F 2827, 콘크리트 생산 공정 관리용 시험방법 - 콘크리트 압축 강도의 조기 판정 시험 방법(온수양생법), 2011
  4. ASTM C0684-99R03 Standard Test Method for Making, Accelerated Curing, and Testing Concrete Compression Test Specimens, 2003
  5. 寺內利惠子 외 4인, 設計基準强度 $150N/mm^2$の超高强度コンクリ一トの實施適用および品質管理, 日本建築學會大會學術講演梗槪集, 2008
  6. 小田新二 외 4인, 溫水養生による各種セメントを用いた高强度コンクリ一トの壓縮强度の早期判定に關する考察, 日本建築學會大會學術講演梗槪集, 2005
  7. 陣內浩 외 5인, 溫水養 生供試体による超高强度コンクリ一トの壓縮强度の評價に關する基礎的硏究, 日本建築學會大會學術講演梗槪集, 2006
  8. 平野修也 외 1인, 建設現場におけるコンクリ一ト强度管理への溫水養生法の適用に關する實驗的硏究, 日本建築學會大會學術講演梗槪集, 2009
  9. M.Hulusi Ozkul, Efficiency of accelerated curing in concrete, Cement and Concrete Research, 2001
  10. 손창선 외 4인, 온수양생에 의한 콘크리트의 강도발현성상에 관한 기초적 연구, 대한건축학회학술발표논문집 16권 2호, 1996
  11. 김용직 외 2인, 촉진양생법에 의한 고로슬래그 미분말 혼합콘크리트의 압축강도 예측, 한국건설순환자원학회논문집 4권 4호, 2009
  12. KS F 2403, 콘크리트 강도 시험용 공시체 제작방법, 2010
  13. 양근혁 외 2인, 중량 콘크리트의 유동성 및 역학적특성에 대한 물-결합재비와 플라이애쉬 치환율의 영향, 대한건축학회 논문집, 2012, 제 28권 8호, pp.129-136
  14. 김장호 외 4인, 재생 PET섬유가 혼입된 황토 콘크리트 보의 휨 거동, 한국콘크리트학회논문집, 2008, 제 20권 5호, pp.619-626
  15. 松本健一 외 2인, 低水比領域におけるシリカフュ一ム混和セメントの若材齡時水和反應, 日本建築學會大會學術講演梗槪集, 2008
  16. 소형석 외 1인, 배합 및 양생조건이 폴리프로필렌섬유보강 초고강도 시멘트 복합체의 강도발현 특성에 미치는 영향, 대한건축학회논문집, 2010, 제 26권 5호, pp.75-82
  17. 대한건축학회, 건축공사표준시방서, 1999
  18. 한국콘크리트학회, 콘크리트공사표준시방서해설, 2000
  19. 한국콘크리트학회, 최신콘크리트공학, 2011
  20. 장복기 외 3인, 시멘트 재료화학, 전남대학교 출판부, 1998