폐콘크리트 재활용에 있어서 강도특성상의 문제점

Problems in Strength Characteristics of Recycled Waste Concrete

  • 김광우 (강원대학교 농공학과) ;
  • 연규석 (강원대학교 농공학과교수) ;
  • 이병덕 (강원대학교 대학원 토목공학과)
  • 발행 : 1992.10.01

초록

Selected strength characteristics of recycled concrete using crushed waste concrete were compared with those of conventional concrete using natural aggregate. Compressive strength, bonding at the interface between recycled aggregate and fresh mortar, strain and deflection under three-point bending were evaluated. Recycled concrete, in general, showed lower compressive strength, lower edlastic modulus, higher stain and higher deflection under the same loading level, compared with those of conventional concretes. However, the strength retaining ratios of recycled concretes were higher than those of conventional concretes. The compressive strength which is one of the most important load carrying capacities of concrete should be improved for successful re-use of waste concrete in structural concrete.

키워드