Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
권호 표지
DOI QR코드

DOI QR Code

An Experimental Study on the Basic Properties of Penetrating repair material using Silicate-based Inorganic Materials

규산염계 무기 재료를 활용한 침투성 보수재의 기초 특성에 관한 실험적 연구

  • Received : 2017.04.26
  • Accepted : 2017.07.07
  • Published : 2017.07.31
Download PDF
⟨ Previous Next ⟩

Abstract

In this study, permeable repair materials mainly composed of silicate - based inorganic materials(SIM), which are easily available domestically, were prepared as a basic study for the development of permeable repair materials using SIM. SIM were compared and examined for their performance as repair materials by selecting a product group which has many cases of use in foreign countries. The SIM used were mainly composed of sodium, potassium and lithium silicate. Performance evaluation of SIM was performed by absorption and penetration, compression and adhesion, rapid chloride ion penetration, rapid freezing and thawing, and chemical resistance test. According to the test results, SIM showed effective performance in all areas, mainly because SIM permeates into the interior of the capillary and has a dense internal microstructure. Therefore, it can be used variously to improve the durability of concrete based on the results of this experiment.

본 연구에서는 규산염계 무기재료를 활용한 침투성 보수재의 개발을 위한 일환의 기초 연구로써 국내에서 쉽게 입수가 가능한 규산염계 무기재료를 주성분으로 하는 침투성 보수 재를 제조하였다. 또한, 규산염계 무기재료를 활용한 침투성 보수재는 국외에서 많은 활용사례가 있는 제품군을 선정하여 보수재의 성능을 비교 고찰하고자 하였다. 실험에 사용된 규산염계 무기재료는 Sodium, Potassium 및 Lithium silicate를 주성분으로 하는 규산염계 무기재료를 활용한 침투성 보수재를 제조하였다. 규산염계 무기재료를 활용한 침투성 보수재의 성능평가는 내흡수 및 내투수, 압축 및 부착, 급속 염소 이온 침투, 급속 동결 융해, 내약품성 시험을 실시하였다. 실험결과 규산염계 무기재료를 활용한 침투성 보수재는 모든 부분에서 효과적인 성능을 발휘하는 것으로 나타났다. 이러한 결과의 주요 원인은 모세관을 따라 내부로 침투되어 조직을 치밀하게 하기 때문인 것으로 나타났다. 따라서 본 실험결과를 기반으로 콘크리트의 내구성을 향상시키는 데 다양하게 활용 가능할 것으로 판단된다.

Keywords

References

  1. Korea Concrete Institute, Latest Concrete Engineering, pp. 654-690, Gimundang, 2005.
  2. Korea Concrete Institute, Concrete Diagnosis and Maintenance, pp. 61-95, Korea Concrete Institute, 2005.
  3. J. Oh, B. R. Jung, Diagnosis and Maintenance of Concrete Structures, pp. 91-136, Gimundang, 2010.
  4. J. Y. Lee, Y. J. Park, C. K. Lee, Concrete Structures Maintenance, pp. 9-170, Goomisukyan, 2008.
  5. Y. W. Choi, Development of Concrete Matrix Combined Waterproofing Agent for Railway Bridge Deck, Small and Medium Business Administration, Joint industry-academia-research technology development, Final Report, pp. 13-48, 2010.
  6. I. H. Lee,, A Performance Appraisal for Combined Construction Method Applied Repairing Mortar with Water Repellent Agent of Inorganic Polymer Type, pp. 1-13, Seoul National University of Science and Technology, Master's Thesis, 2004.
  7. Y. W. Choi, S. R. Oh, M. S. Park, B. K. Choi, S. W. Oh, H. J. Kang, "Evaluation of Crack Repair Performance of Liquid Type Crack Repair agent for Concrete using Titanium-based Inorganic Powder according to Re-Spray Time", Proceeding of the Korea Concrete Institute, vol. 26, no. 1, pp. 217-219, 2014.
  8. Y. W. Choi, S. R. Oh, M. S. Park, K. H. Kim, "A Study on the Penetration Depth Measurement Methods of Inorganic Waterproofing Agent for Concrete", Journal of Korea Institute for Structural Maintenance and Inspection, vol. 13, no. 3, pp. 116-124, 2014. DOI: https://doi.org/10.11112/jksmi.2014.18.3.116
  9. Y. W. Choi, S. R. Oh, B. K. Choi, C. G. Kim, J. H. Lee, "The Experimental Study on Mechanical Properties of Cementitious Composites ApplyingInorganic Liquid type Core Material for Self-Healing Capsule", Proceeding of the Korea Concrete Institute, vol. 28, no. 2, pp. 609-610, 2016.
  10. Y. W. Choi, S. R. Oh, B. K. Choi, C. G. Kim, "A Fundamental Study on the Influence of Performance of Cementitious Composites of Inorganic Core Material for Self-Healing Capsule of Cracks", Journal of the Korea Institute for Structural Maintenance and Inspection, vol. 21, no. 1, pp. 74-82, 2017.
  11. Korea Concrete Institute, Concrete Standard Specification, Korea Concrete Institute Korea, 2009.