Performance Evaluation of Sprayed Ductile Fiber-Reinforced Mortar as a Repairing Material

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Title: Performance Evaluation of Sprayed Ductile Fiber-Reinforced Mortar as a Repairing Material

Author(s): Su-Tae Kang, Kyung-Taek Koh, Gum-Sung Ryu, Jin-Soo Kim, and Cheon Goo Han

Publication: IJCSM

Volume: 2

Issue: 1

Appears on pages(s): 27-33

Keywords: repair; fiber reinforced; mortar; PVA fiber; spra

Date: 6/30/2008

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 strengthen-ing effect. This study shows that the sprayed PVA fiber-reinforced mortar is remarkably effective as a repair material.


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