Recently, the use of buried flexible pipes is widespread and ever increasing trend in the construction field. In this paper, we present the result of an investigation pertaining to the pipe stiffness of buried unplasticized polyvinyl chloride (PVC-U) pipes. To estimate the mechanical properties of PVC pipe produced by the domestic manufacturers, tensile test specimens were prepared and tested. In addition, parallel plate loading tests for the pipes with 150mm and 400mm inside diameters were conducted. From the test result, the pipe stiffness according to the ASTM D 2412 (2008) is estimated.

ABSTRACT
 1. 서 론
 2. 경질 폴리염화비닐관의 강성
 3. 경질 폴리염화비닐관의 역학적 특성
  3.1 인장강도시험
 4. 결 론
 References

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• 김응호(홍익대학교 토목공학과) | Kim Eung-Ho