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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)
  • Published : 2008.06.30

Abstract

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.

Keywords

References

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