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

Architectural Institute of Korea (대한건축학회)
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A Study on the Resistance of Chloride Ion Infiltration and Dry Shrinkage of Mortar Containing Si/Al Hybrid inorganic salt and Multi-Cyclonic Oligomer Condensate

Si/Al 복합 조성물과 다환형 올리고머 축합물을 혼입한 모르타르의 내염해성 및 수축제어 향상에 관한 연구

  • Received : 2014.03.05
  • Accepted : 2014.06.05
  • Published : 2014.06.30
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Abstract

Reinforced concrete structures in harbors or sea shores are typically contacted with sea waters and exposed to brine and humid environment from the start of the construction stage thus erosion in the durability of the structures are aggravated. Especially, the SOC structures suffered drying shrinkage accompanying the through cracks, facilitate the penetration of chlorine ion. In this study, the durability improving admixture(DIA) mixed with oligomer condensate and Si/Al composition was developed. The DIA countervails the drying shrinkage of concrete and mortar, fixes the chlorine ion, and prevents the erosion from the sulfate ion. In the experiments of this study, the mortar having excellent resistibility against salt damage was produced by mixing the DIA with the binder replaced the fine blast-furnace slag and cement. The whole 3 mixtures including the one mixed only with the cement (OPC) and another one replaced the blast-furnace slag (BSC), and the other one mixed with the DIA were tested. Using the 3 mixtures, the experiments to identify restraint drying shrinkage, chlorine ion penetration and the erosion from the sulfate ion were conducted. In all conducted experiments, the excellent resistibility against salt damages and drying shrinkage were identified in the order of DIA, BSC, and OPC.

Keywords

References

  1. C.B. Shin, "Modeling of chloride ion ingress in coastal concrete", Cem Conc Res, 32, 2002
  2. B. Martin-Perez, "A study of the effect of chloride binding on service life predictions", Cem Conc Res, 30, 2000
  3. A. Dousti, "Binding of externally supplied chlorides in micro silica concrete under field exposure conditions", Cem Conc Comp, 33, 2011
  4. Rasheeduzzafar, "Effect of tricalcium aluminate content of cement on chloride binding and corrosion of reinforcing steel in concrete", ACI Mat J, 89, 1992
  5. 萩原良二, "構造物の耐久性向上と性能評価方法に關する硏究", 獨立行政法人 土木硏究所, 2005
  6. 소양섭, "포졸란재 함유 콘크리트의 세공구조와 염화물이온 침투 저항성", 한국콘크리트학회논문집, 14, 2002 https://doi.org/10.4334/JKCI.2002.14.1.100
  7. 소승영, "고로슬래그 시멘트 페이스트 내 염화물 고정화율 평가에 관한 연구", 대한건축학회논문집, 18, 2002
  8. 김무한, "염해 및 중성화의 복합열화작용에 의한 표면피복종류별 철근콘크리트의 부식특성", 대한건축학회논문집, 21, 2005
  9. 김기준, "콘크리트구조물의 전기방식 원리와 적용", 한국콘크리트학회지, 18, 2006
  10. brian B. Hope, "Corrosion of Steel in Concrete Made with Salg Cement", ACI Mat J, 84, 1987
  11. Al-Amoudi, "Attack on plain and blended cements exposed to aggressive sulfate environments", Cem Conc Comp, 24, 2002
  12. M.N. Haque, "Free and water soluble chloride in concrete", Cem Conc Res, 25, 1995
  13. 笠井芳夫, "鹽化物による鐵筋コンクリ一トの劣化", コンクリ一ト工學, 25, 1987
  14. G.W. Washa, "Fifty-year Properties of Concrete", ACI Mat J, 72, 1975
  15. O.E. Gjorv, "Long-Time Durability of Concrete in Seawater", ACI Mat J, 68, 1971
  16. Qiao Zhu, "Effect of chloride salt type on chloride binding behavior of concrete", Const Build Mat, 37, 2012
  17. Arya C, "Factors influencing chloride binding in concrete", Cem Conc Res, 20, 1990
  18. H. Zibara, "Influence of the C/S and C/A ratios of hydration products on the chloride ion binding capacity of lime-SF and lime-MK mixtures", Cem Conc Res, 38, 2008
  19. 이종석, "우리나라의 비래염분 분포 특성", 한국콘크리트학회논문집, 22, 2010 https://doi.org/10.4334/JKCI.2010.22.6.769
  20. P.F. Hudak, "Sulfate and chloride concentrations in Texas aquifers", Envir International, 26, 2000
  21. 한국콘크리트학회, 콘크리트 표준시방서, 2009
  22. ASTM C 1581-04, "Standard Test Method for Determining Age at Cracking and Induced Tensile Stress Characteristics of Mortar and Concrete under Restrained Shrinkage", 2004
  23. 김규용, "판상-링형 및 아령형 구속수축시험에 의한 콘크리트의 수축균열특성 평가에 관한 연구", 대한건축학회논문집, 24, 2008
  24. 김규용, 콘크리트의 구속수축균열 특성평가를 위한 판상-링형 시험방법의 적정성 평가, 대한건축학회논문집, 25, 2009
  25. Mansur Sumer, "Compressive strength and sulfate resistance properties of concretes containing Class F and Class C fly ashes", Const Build Mat, 34, 2012

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  1. An Evaluation on the Resistance Efficiency of Chloride Ion Infiltration of Offshore Concrete Si/Al Hybrid inorganic salt and Multi-Cyclonic Oligomer Condensate vol.30, pp.11, 2014, https://doi.org/10.5659/JAIK_SC.2014.30.11.53