A Study on the Lining of Reinforced Concrete Pipe Using Polymer-Modified Mortar

폴리머 시멘트 모르타르를 이용한 철근콘크리트 흄관 라이닝에 관한 연구

  • 김영집 (정회원, 전북대학교 대학원 건축공학과) ;
  • 김한엽 (정회원, 영진콘크리트(주) 대리) ;
  • 조영구 (정회원, 청운대학교 건축공학과) ;
  • 소양섭 (정회원, 전북대학교 건축·도시공학부 교수, 공업기술연구소)
  • Published : 2000.04.01

Abstract

At present, reinforced concrete pipe has been widely used as drain pipe. However, many reinforced concrete pipe is exposed at deteriorated environment by the growth of a sulfur-oxidizing bacterium isolated from corroded concrete. The purpose of this study is to evaluate the effects of lining by polymer-modified mortar on the development in durability of reinforced concrete pipe. Polymer-modified mortars ate prepared with various polymer typer as cement modifier and polymer-cement ratio and rested for compressive and flexural strengths, adhesion in tension, acid resistance test, freezing and thawing test, and lining test of product in the field. From the rest results, it is apparent that polymer-modified mortars have good mechanical properties and durability as lining material. In practice, all polymers can be used as lining materials for reinforced concrete pip, and type of polymer, and polymer-cement ratio and curing conditions are controlled for good lining product.

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