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The Physical Properties of Polymer Concrete for Ultra Thin Bridge Deck Pavement

초박층 교면포장용 폴리머 콘크리트의 물리적 특성

  • 김현준 (삼성물산 건설부문) ;
  • 손영효 (삼성물산 건설부문) ;
  • 한범진 (성균관대학교 초고층장대교량학과) ;
  • 정지은 (성균관대학교 건설환경시스템공학과) ;
  • 박선규 (성균관대학교 건설환경시스템공학과)
  • Received : 2012.12.13
  • Accepted : 2013.02.22
  • Published : 2013.05.30

Abstract

This research was performed to identify physical properties of polysulfide epoxy polymer concrete for ultra-thin bridge deck pavement, and improve domestic applicability. With the optimum mix ratio determined from mixing experiments of polymer concretes, compressive, flexural, and bond strength were tested to identify its strength properties along with the freezing-thawing resistance test to evaluate its durability in harsh environments. As a result, the tested polymer concretes showed excellent performance in strength and deflection characteristic and all tested strength satisfied the criteria of American Concrete Institute. Moreover, it had better performance under variable temperatures comparing to other existing pavement materials. By the results of freezing-thawing resistance test and strength measurement for specimens underwent the freezing-thawing process, it can be judged that there is no such problem to the concrete's durability. In conclusion, the newly developed polymer concrete in this research has appropriate properties for use in ultra-thin pavement on bridge deck, and moreover it has superior applicability in comparison with former materials due to its improved temperature sensitivity.

본 연구는 국내에서 개발 중인 초박층 교면포장용 폴리설파이드 에폭시 폴리머 콘크리트의 물리적 특성을 파악하고 국내로의 적용 가능성을 향상시키기 위해 수행되었다. 바인더와 폴리머 콘크리트의 배합실험을 통해 폴리머 콘크리트의 최적 배합비율을 결정하고, 결정된 배합비율로 생산된 폴리머 콘크리트에 대하여 압축, 휨, 부착 강도 시험을 수행하여 강도특성을 파악하였으며 동결 융해 저항성 시험을 통해 폴리머 콘크리트의 내구성을 평가하였다. 강도 시험 결과, 우수한 강도 성능과 휨 추종성을 나타내었고 미국콘크리트학회에서 제시하는 모든 강도 기준을 충족하였다. 또한 다양한 온도에서의 강도 시험에서도 기존의 재료에 비하여 개선된 성능을 나타내었다. 동결 융해 시험 및 동결 융해 과정을 거친 시편의 강도 시험 결과, 폴리머 콘크리트의 내구성에는 전혀 문제가 없는 것으로 판단된다. 따라서 본 연구에서 새롭게 개발된 폴리머 콘크리트는 초박층 교면포장으로 사용하기에 적절한 특성을 가지고 있을 뿐만 아니라, 온도 민감성도 개선되어 기존의 초박층 교면포장 재료에 비해 폭 넓은 적용성을 갖춘 것으로 판단된다.

Keywords

References

  1. ACI Committee 548, Guide for Polymer Concrete Overlay, ACI 548.5R-94, 1998.
  2. ACI Committee 548, Specification for type ES (Epoxy Slurry) polymer overlay for bridge and parking garage decks, ACI 548.9M-08, 2008.
  3. Arthur M. Dinitz, Michael S. Stenko, "The successful use of thin polysulfide epoxy polymer concrete overlays on concrete and steel orthotropic bridge decks", 2010 Structures Congress ASCE, 2010, pp.530-540.
  4. ASTM International, Standard test method for flexural strength and modulus of elasticity of chemical-resistant mortars, grouts, monolithic surfacings, and polymer concretes, ASTM C580-02, 2012.
  5. ASTM International, Standard test method for tensile strength of concrete surfaces and the bond strength or tensile strength of concrete repair and overlay materials by direct tension (Pull-off method), ASTM C1583/C1583M, 2008.
  6. ASTM International, Standard test methods for compressive strength of chemical-resistant mortars, grouts, monolithic surfacings, and polymer concretes, ASTM C579-01, 2012.
  7. ASTM International, Standard test methods for resistance of concrete to rapid freezing and thawing, ASTM C666/C666M, 2008.
  8. Kim, H. B., Kwak, B. S., Park, J. Y., "Application of Thin Polymer Concrete Overlay to the Pavements", Journal of 26th KECRI Conference, 2010, pp.65-79. (in Korean)
  9. Kim, J. H., Suh, Y. C., "Laboratory Evaluation of Polysulfide Epoxy Overlay Material for Bridge Deck", Journal of Korean Society of Road Engineers, vol. 13, No. 2, 2011, pp.159-166. (in Korean)
  10. Kim, T. W., Kim, D. Y., Nguyen, M. T., Lee, H. J., "A Study on the Physical Characteristics of Acryl Concretes for Thin Bridge Deck Pavements", Journal of Korean Society of Road Engineers, vol. 11, No. 3, 2009, pp.1-11. (in Korean)
  11. Lee, H. J., "Introduction of Acryl Polymer Concretes for Thin Pavements", Journal of Korean Society of Road Engineers, vol. 12, No. 3, 2010, pp.5-8. (in Korean)
  12. Michael S. Stenko, Arif J. Chawalwala, Thin polysulfide epoxy bridge deck overlays, Transportation research record 1749, 2001, pp.64-67.
  13. NCHRP Synthesis 423, "Long-term performance of polymer concrete for bridge decks", Transportation research board, 2011.

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