재생골재를 함유한 무잔골재 콘크리트의 강도특성

Strength Characteristics of No-Fine Concrete Containing Recycled Aggregates

  • 김태근 (성균관대학교 토목공학과) ;
  • 이광명 (성균관대학교 토목공학과) ;
  • 김낙경 (성균관대학교 토목공학과) ;
  • 고용일 (한라건설(주) 기술연구소 책임연구원)
  • 발행 : 1998.10.01

초록

Recently, as to destruction and renovation of aged building, waste concretes have been reclaimed near foreshore and filled up underground. Recycling demolished concrete as aggregate helps to settle economic and environmental problems of obtaining superior aggregates from natural sources and to dispose waste concretes. An experimental study was carried out to investigate the strength characteristics of no-fine concrete containing recycled aggregates. The cement-aggregate weight ratios of 1: 5, 1: 6, 1: 7 and water-cement ratios of 30, 35, 40, 45% were chosen for the mix design of no-fine concretes. The compressive and splitting tensile strength at 7 and 28 days were measured for 12 different mixes. On the basis of test results, the optimum mix proportion of no-fine concrete containing recycled aggregates was determined and applied to the production of retaining wall block.

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