An Experimental study on the Fundamental Properties of Restorative Mortar Spread with Liquefied Antibiotics for Repair of Sewer Concrete

액상 항균제를 도포한 단면복구용 모르타르의 기초물성에 관한 실험적 연구

  • 이동혁 (충남대학교 대학원 건축공학과) ;
  • 장재봉 (충남대학교 대학원 건축공학과) ;
  • 조봉석 (충남대학교 대학원 건축공학과) ;
  • 김재환 (충남대학교 대학원 건축공학과) ;
  • 이병기 ((주)트라이포드) ;
  • 김무한 (충남대학교 대학원 건축공학과)
  • Published : 2005.05.01

Abstract

The sulfuric acid may react with the hardened cement paste and originate expansive products which can induce swelling and disaggregation of concrete. The purpose of this study is to estimate the antibacterial performance of antibiotics and the effect of absorbed condition of restorative mortar, the number of coating times and coating contents with antibiotic on the fundamental properties of restorative mortar spead with antibiotics. Also, testing items such as bonding strength, abrasion contents, contents of water absorption, contents of air permeability was tested to estimate the fundamental properties in this study. In results, the novellus bacillus inhabiting in sewer concrete structures was restrained by antibiotics developed in this study. And bonding strength of restorative mortar spread with antibiotics was similla to that of plain mortar. But, resistance to abrasion, water absorption and air permeability of restorative mortar spread with antibiotics was superior to that of plain mortar.

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