Properties of Quality Evaluation for Inorganic Crack Injection Materials

무기계 균열주입재의 품질평가에 관한 연구

  • 이종열 (쌍용양회공업(주) 기술연구소) ;
  • 유재상 (쌍용양회공업(주) 기술연구소) ;
  • 정연식 (쌍용양회공업(주) 기술연구소) ;
  • 이웅종 (쌍용양회공업(주) 기술연구소) ;
  • 양승규 (쌍용양회공업(주) 기술연구소)
  • Published : 2001.11.01

Abstract

In this research we made cement particle with the average size of 4 ${\mu}{\textrm}{m}$ which can penetrate even minor cracks based on the theory of J. K. Michel who reported particles can penetrate the crack of width up to 3 times of maximum particle size. The inorganic crack injection materials were produced by adding superplasticizer. Physical properties of hardened slurry with JIS molds were also tested at 3, 7 and 28 days and the adhesion properties of the slurry in various process conditions were also tested at 3, 7 and 28 days. The cracked specimens which were repaired with slurries produced at various conditions were tested after 3, 7 and 28 days curing in the air and split tensile strength properties were characterized.

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