마이크로 강섬유 보강 경량골재 콘크리트의 압축거동 평가 = Evaluation of Compressive Performance of Lightweight Aggregate Concrete Reinforced with Micro-Steel Fibers

다국어 초록 (Multilingual Abstract)

The present study examined the effect of micro-steel fibers on the compressive performance of lightweight aggregate concrete (LWAC) with ahigher compressive strength-to-density ( ) ratio. The artificially expanded clay aggregates and expanded waste glass particles were usedfor producing LWAC with a higher  ratio. Main parameters selected were the designed compressive strength of concrete and volumetricratio of the fibers. Test results showed that the present LWAC specimens exhibited a higher  than the previous non-reinforced LWACmixtures at the same  . This enhanced  was more notable as  increased from 1,300 kg/m3 to 1,600 kg/m3. In addition, LWACspecimens reinforced with micro-steel fibers displayed a higher value of compressive toughness index than those reinforced with theconventional macro-steel fibers at the same fiber reinforcing index.

국문 초록 (Abstract)

본 연구에서는 압축강도 대 밀도(fck/ρc) 비가 더 높은 경량골재콘크리트(LWAC)의 압축성능에 대한 마이크로강섬유의 영향을 조사하였다. 폐유리 발포 경량골재는 더 높은 fck/ρc 비율을 갖는 LWAC를 생산하는 데 사용되었다. 선택된 주요 매개변수는 콘크리트의 설계 압축강도와 섬유의 부피비였다. 시험 결과, 현재 LWAC 시편은 동일한 ρc에서 이전의 무보강 LWAC 혼합물보다 더 높은 fck를 나타냈다. 이 향상된 fck는 ρc가 1,300kg/m3에서 1,600kg/m3로 증가함에 따라 더욱 두드러졌다. 또한 동일한 섬유보강지수에서 마이크로강섬유로 보강된 LWAC 시편이 기존의 매크로강섬유로 보강된 시편보다 압축인성지수 값이 더 높게 나타났다.

참고문헌 (Reference)

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