DOI QR코드

DOI QR Code

An Improvement of Quality Standard and Construction Quality Control for Field Application of Epoxy-Coated Reinforcing Bars

에폭시 피복철근 현장적용을 위한 품질 기준 및 시공품질관리 개선에 관한 연구

  • 정찬구 (서울시립대학교 토목공학과) ;
  • 정희영 (서울시립대학교 토목공학과) ;
  • 김지상 (서경대학교 토목공학과) ;
  • 심성표 (에코바) ;
  • 심진아 ((주)평화엔지니어링 시설안전부)
  • Received : 2018.09.09
  • Accepted : 2018.09.21
  • Published : 2018.09.30

Abstract

The Epoxy-coated Reinforcing bars have been proved to be able to extend a durability life because of its excellent corrosion resistance in bridges and structures under marine and severe environments. The usage of epoxy-coated reinforcement is continuously increasing in developed countries such as the US and Japan. However, domestic use is extremely limited due to lack of research and development, poor production facilities, low quality, increase of initial costs, and difficulty of field management. This study suggests the improvement of construction quality management such as manufacturing, transportation and construction for the field application through the test construction of the proven product in the related test results of the epoxy coated steel bars produced in the recently improved manufacturing facility.

에폭시 피복철근은 해양 및 가혹한 환경에서 철근방식 성능이 우수하여 내구수명을 연장하는 것이 가능함이 입증되어 미국 및 일본등의 선진국에서는 에폭시 피복철근의 사용이 지속적으로 증가하고 있다. 그러나 국내는 연구개발 부족, 낙후된 생산설비, 품질불량, 초기비용 증가, 현장 취급 및 관리 어려움등의 이유 때문에 아주 제한적으로 사용하고 있다. 이 연구는 최근에 개선된 제조공장에서 생산된 에폭시 피복철근의 관련 시험에 의해 증명된 제품의 시험시공을 통하여 현장 적용을 위한 제조, 운반 및 시공등의 시공품질관리의 개선방안을 제안하였다.

Keywords

References

  1. AASHTO. (2014). AASHTO LRFD Bridge Design (7th Edition).
  2. ACI Committee 318. (2014). Building Code Requirements for Structural Concrete(ACI318-14), America Concrete Institute.
  3. ASTM. (2001). ASTM D3963/D3963 Standard Specification for Fabrication and Jobsite Handling of Epoxy-Coated Steel Reinforcing Bars, ASTM International, West Conshohocken, PA.
  4. ASTM. (2007). ASTM A934/A934M Standard Specification for Epoxy-Coated Prefabricated Steel Reinforcing Bars, ASTM International, West Conshohocken, PA.
  5. ASTM. (2014). ASTM A884/A884M Standard Specification for Epoxy-Coated Steel Wire and Welded Wire Fabric for Reinforcement, ASTM International, West Conshohocken, PA.
  6. ASTM. (2017). ASTM A775/A775M Standard Specification for Epoxy-Coated Steel Reinforcing Bars, ASTM International, West Conshohocken, PA.
  7. CRSI. (2017). CRSI Manual of Standard Practice, Concrete Reinforcing Steel Institute, Schaumburg, IL.
  8. EIG. (2011). Presentation: Cost-Effective Methods for Improving the Corrosion Resistance of Concrete, http://epoxyinterestgroup.org/index.cfm/publications
  9. EIG. (2012). Epoxy-Coated Reinforcing Steel in Bridge, Building and Parking Garage www.epoxyinterestgroup.org
  10. FHWA. (2012). FHWA LTBP (Long Term Bridge Practices for Reinforcing Bars. FHWA Publication No.: FHWA-HRT-16 Performance) Summary-National Changes in Bridge.
  11. KCI. (2012). Design Standard for Structural Concrete and Commentary [in Korean].
  12. KSA. (1995) KS D 3629 [in Korean].
  13. Kim, J.S., Lee, S.H., Choi, J.W. (2018). An experiment on bond-slip behavior of epoxy coated rebar made by IGBT method, Defect and Diffusion Forum, 382, 241-245. https://doi.org/10.4028/www.scientific.net/DDF.382.241
  14. Kim, Y.J., Youn, S.J. (2013). Use of epoxy coated reinforcing steel bars for anti-salt injury, Journal of Korean Society for Advanced Composite Structures, 4(2) [in Korean].
  15. Lee, S.H. (2018). Quality Assessment and Bond Characteristics of Epoxy Coated Reinforcements, Master's Thesis, Seokyeong University [in Korean].
  16. MOLIT. (2016). Standartd Specification for Concrete Construction [in Korean].