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Development of Repair System for Drain Pipe to Enhance Safety

하수관거 안전성 향상을 위한 보수 시스템 개발

  • Chung, Jee-Seung (Department of Railroad Civil Engineering, Dongyang University) ;
  • Kang, Weon-Dae (Office of Auditing & Inspection, Korea Rural Community Corporation)
  • 정지승 (동양대학교 철도토목학과) ;
  • 강원대 (한국농어촌공사 감사실)
  • Received : 2011.09.15
  • Accepted : 2011.11.29
  • Published : 2011.12.31

Abstract

This study was performed to develop repair and reinforcing materials in sewage drain pipe by using 40% of CAC(Calcium Aluminate Cement) and 4% of Polymer Powder. Regarding reinforcing materials to enhance load-bearing capacity, polyester textile and wire mesh were adopted and then they were evaluated by the measurement of deflection and Stress-strain Relationship. Two types of drain pipe made by concrete and PE were considered as plain specimens and then loading test were performed after repaired by CAC mortar impregnated reinforcing materials. As the test results of the load-bearing test on both drain pipe, there was higher load-bearing capacity on the specimen adopted wire mesh but debonding of repair mortar was found due to stiffness of wire mesh. By the way, repair system using CAC mortar impregnated polyster textile without wire mesh showed satisfactory results including bonding and load-bearing capacity regardless substrate, so this repair system using by mixture of CAC mortar and polyster textile is suggested as the reasonable repairing method within this experimental scope.

Keywords

References

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