DOI QR코드

DOI QR Code

Durability Characteristics of Concrete with Nano Level Ceramic Based Coating

나노합성 세라믹계 도장재를 도포한 콘크리트의 내구성능

  • Published : 2007.10.31

Abstract

This study performed several tests for the durability of the concrete coated with nano synthesis ceramics which do not contain volatile organic compounds harmful to environment. The tests were adhesion test on dry and humid concrete, SEM test, MIP analysis, carbonation, chloride diffusion by electronic facilitation, freezing-thawing resistance, alkaline resistance, and brine resistance test. In the adhesion test on dry and humid concrete, nano synthesis ceramics coating produced the highest results among all the coatings tested. Nano synthesis ceramics adhered solidly on the concrete surface. The adhesive strength seemed to result from the hydrogen bond between nano synthesis ceramics which are inorganic and generated by hydrolysis and re-condensation reaction and the concrete's hydrates such as calcium silicate aluminate or calcium silicate hydrate. SEM test and MIP analysis results show surface structure with finest crevices pore in the nano synthesis ceramics coating applied concretes. In the carbonation, chloride diffusion, and freezing-thawing resistance tests, the concretes with nano synthesis ceramics coating indicated the best results. Based on these test results, further progress in application of nano synthesis ceramics coatings to various concrete structures including costal structures and sewerage arrangements can be expected.

References

  1. 김성수, 해양환경하에 방치한 콘크리트의 열화 및 철근 부식 방식에 대한 연구, 박사학위논문, 한양대학교, 1994, 175pp
  2. 김인섭, 이종규, 추용식, 김태현, 심광보, '무기질 도료 및 표면처리 시스템을 적용한 시멘트 모르타르와 콘크리트의 내구성 평가', 콘크리트학회 논문집, 15권, 4호, 2003, pp.522-528
  3. 김성수, 콘크리트 보호용 코팅제의 성능 평가, 도시철도공사, 2001, pp.3-6
  4. 유성원, 고성능 표면 침투제가 도포된 콘크리트 특성 평가, 석사학위논문, 우석대학교, 2005, 73pp
  5. 이태희, 표면피복재 종류에 따른 철근콘크리트의 염해 억제 성능에 관한 실험적 연구, 석사학위논문, 충남대학교, 2002, 76pp
  6. 김성우, 내마모성 박막 코팅제용 실리카/에폭시 하이브리드 물질의 제조 및 특성, 석사학위논문, 경기대학교, 2004, 87pp
  7. Bazant, Z. P. and Jennings, H. M., 'Moisture Diffusion in Cementitious Materials: Adsorption Isotherm', Journal of Advanced Cement Based Materials, Vol.1, 1994, pp.248-257 https://doi.org/10.1016/1065-7355(94)90033-7
  8. Batis, G., Pantazopoulou P., and Routoulas, A., 'Corrosion Protection Investigation of Reinforcement by Inorganic Coating in the Presence of Alkanolamine- Based Inhibitor', Cement and Concrete Composites, Vol.25, Issue3, 2003, pp.371-377 https://doi.org/10.1016/S0958-9465(02)00061-6
  9. Pogrebnjak, A. D., Kravchenko, Yu. A., Kislitsyn, S. B., Ruzimov, Sh. M., Noli, F., Misaelides, P., and Hatzidimitriou, A., '$TiN/Cr/Al_2O_3\;and\;TiN/Al_2O_3$ Hybrid Coatings Structure Features and Properties Resulting from Combined Treatment', Surface and Coatings Technology, Vol.201, Issue6, 2006, pp.2621-2632 https://doi.org/10.1016/j.surfcoat.2006.05.018
  10. Ibrahim, M., Al-Gahtani, A S., Maslehuddin, M., and Dakhil, F. H., 'Use of Surface Treatment Materials to Improve Concrete Durability', Journal of Materials in Civil Engineering, 1999, pp.36-40
  11. Andrade, C., 'Calculation of Chloride Diffusion Coeficients in Concrete from Ionic Migration Measurements', Cement and Concrete Research, Vol.23, No.5, 1993, pp.724-728 https://doi.org/10.1016/0008-8846(93)90023-3