International Journal of Concrete Structures and Materials

  • 제2권1호
  • /
  • Pages.27-33
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  • 2008
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  • 1976-0485(pISSN)
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  • 2234-1315(eISSN)
한국콘크리트학회 (Korea Concrete Institute)
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Performance Evaluation of Sprayed Ductile Fiber-Reinforced Mortar as a Repairing Material

  • Kang, Su-Tae (Structure Research Dept., Korea Institute of Construction Technology) ;
  • Koh, Kyung-Taek (Structure Research Dept., Korea Institute of Construction Technology) ;
  • Ryu, Gum-Sung (Structure Research Dept., Korea Institute of Construction Technology) ;
  • Kim, Jin-Soo (Wonha Engineering & Construction Co., Ltd.) ;
  • Han, Cheon-Goo (Dept. of Architectural Engineering, Cheongju University)
  • 발행 : 2008.06.30
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초록

Most of existing repair materials have some shortcomings such as brittle fracture, imperfect interface bonding and marked difference in modulus of elasticity compared with the structures. These problems make their repair inefficient. Some researches on using a fiber-reinforced mortar as an alternative to enhance the efficiency have been carried out recently. This paper presents the results of an experimental study on the performance of sprayed PVA fiber-reinforced mortar as a repair material. We evaluated its mechanical properties, durability and strengthening effect. This study shows that the sprayed PVA fiber-reinforced mortar is remarkably effective as a repair material.

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참고문헌

  1. JSCE Concrete Committee: Evaluation and Using of High Performance Fiber Reinforced Cementitious Composites, Concrete Engineering Series, 64, JSCE, 2005
  2. Naaman, A. E. and Reinhardt, H. W., High Performance Fiber Reinforced Cement Composites 2 (HPFRCC2), E&FN SPON, 1995
  3. Li, V. C. "High Performance Applications of Fibers in Civil Engineering," Journal of Applied Polymer Science, Vol. 83, 2002
  4. Koh, K. T. et al., Development of the Advanced Technology of Durability in Concrete Bridges, Korea Institute of Construction Technology (KICT), 2005
  5. Lee, G. C. et al.: Fundamental Properties of Fiber Composite Spray Mortar, Proceedings of the Korea Concrete Institute, Vol. 18, No. 2, 2006, pp. 305-308
  6. Ryu, G. S. et al., "A Study on the Evaluation for Durability Performance of the Repair Method Using Fiber Reinforced Mortar," Proceedings of the Korea Concrete Institute, Vol. 18, No. 2, 2006, pp 291-314