• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2015년도 춘계 학술논문 발표대회
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• pp.38-39
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• 2015

This study reviewed slump and air content as pre-hardening characteristics depending on B/P production of amorphous steel fiber-reinforced concrete and evaluated compressive strength, flexural strength and tensile strength as post-hardening characteristics depending on B/P production of amorphous steel fiber-reinforced concrete.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2014년도 춘계 학술논문 발표대회
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• pp.238-239
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• 2014

It is well known that the bond characteristics of fiber govern the performance of fiber reinforced composite material. A preliminary study was carried out to investigate the pull-out behavior of amorphous and conventional single fiber in cement mortar in accordance with the JCI(Japan Concrete Institute) SF-8. The test was performed under displacement control, and results showed that the bond strength decreased with increasing fiber length. In addition, the amorphous steel fiber showed much higher pull-out load per unit weight compared to conventional steel fiber.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2018년도 춘계 학술논문 발표대회
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• pp.50-51
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• 2018

In this study, it evaluate the electromagnetic pulse shielding performance of amorphous metallic fiber reinforced cement composite with other steel fiber reinforced cement composite. Hooked-ended steel fiber, smooth steel fiber and amorphous metallic fiber were reinforced 2.0 vol.% in cement composites respectively. The electromagnetic pulse shielding performance was evaluated by MIL-STD-188-125-1. As a result, shielding performance of amorphous metallic fiber reinforced cement composite was higher than Hooked-ended and smooth steel fiber reinforced cement composites. In addition, the relationship between the electrical conductivity and the electromagnetic pulse shielding performance of the cement composite was confirmed.

• 자원리싸이클링
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• 제23권4호
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• pp.47-57
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• 2014

본 논문에서는 비정질 강섬유의 길이 및 혼입률 변화에 의한 섬유보강콘크리트의 작업성과 섬유분산성에 대한 기초연구를 수행하였다. 일반적인 슬럼프시험 외에 역슬럼프 및 베베시험을 이용하여 일반 강섬유와는 외관 및 형상이 다른 비정질 감섬유의 유동성을 평가하였다. 실험결과, 얇은 판상형의 비정질강섬유의 작업성 평가를 위해서는 일반적인 슬럼프시험보다는 진동 하에서 수행된 역슬럼프 및 베베시험을 통한 유동성 평가가 바람직한 것으로 나타났다. 결론적으로 섬유의 혼입률 및 길이 증가는 콘크리트의 유동성을 현저히 감소시켰으며, 시멘트 메트릭스내에서 섬유간 간격 또한 감소시키는 결과를 보여주었다.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2017년도 추계 학술논문 발표대회
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• pp.79-80
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• 2017

This study examined the effect that the amorphous metallic fibers had on the static mechanical properties and the impact resistance of cement composites to those of hooked steel fibers. The hooked steel fiber exhibited pull-out from the matrix after the peak flexural stress was attained, while the amorphous metallic fiber was not pulled out from the matrix, but was instead cut off. In terms of impact resistance, the amorphous metallic fiber reinforced cement composite was found to be more effective at resisting cracking than the hooked steel fiber reinforced cement composite. Therefore, amorphous metallic fiber should be used in fiber reinforced cement composite materials, and for structural materials, and for protection panels.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2020년도 봄 학술논문 발표대회
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• pp.132-133
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• 2020

The aim of this study is to evaluate the combination effect of amorphous steel fiber and polypropylene fiber on spalling of the 150MPa level ultra high strength concrete. Considering spalling has a great relationship with water vapor pressure, this paper is focusing on water vapor pressure. The test specimens were heated accordance with ISO-834 Standard Curve using electric heating furnace, the depth of 10mm water vapor pressure formation was tend to get faster and spalling damage become severe when the mixing proportion of amorphous steel fiber increase. When using ultra high strength concrete reinforced with amorphous steel fiber, further research about proper mixing proportion of polypropylene fiber.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2019년도 춘계 학술논문 발표대회
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• pp.32-33
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• 2019

This study evaluated the effect of amorphous steel fibers on the spalling characteristics of high-strength concrete. with mix proportions of polypropylene (PP) fibers of 0.15% by concrete volume, and proportions of amorphous steel fibers of 0.3% and 0.5% by concrete volume. In the range of 0.3 vol% of amorphous steel fiber, the effect of suppression of the spalling and the prevention of degradation of strength was shown, but it was evaluated to be ineffective in the suppression of the spalling due to interferences in formation of pore network in the range of 0.5 vol.%.

• 콘크리트학회논문집
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• 제26권4호
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• pp.483-489
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• 2014

이 연구에서는 ASTM C 1609을 따라서 비정질 강섬유보강콘크리트의 휨실험을 수행하였고, 이를 바탕으로 휨성능을 평가하였다. 비정질 강섬유는 기존의 일반 강섬유와 달리 얇은 두께, 거친 표면의 특성을 가지고 있다. 주요한 실험변수는 섬유 종류(비정질 강섬유, 일반 강섬유), 섬유 혼입률(0.25, 0.50, 0.75%) 그리고 콘크리트 압축강도(27, 50 MPa)이다. 실험 결과에 근거하여 비정질 강섬유와 일반 강섬유보강콘크리트의 휨강도와 휨인성을 분석하였고, 그 결과 일반 강섬유보강콘크리트의 경우 주로 휨인성이 증가하였으나 비정질 강섬유보강콘크리트의 경우 휨강도와 인성을 모두 증가하는 것으로 나타났다.

• 복합신소재구조학회 논문집
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• 제6권4호
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• pp.58-63
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• 2015

The purpose of this experimental research is to evaluate the workability and strength properties of hybrid fiber reinforced concrete containing amorphous steel fiber and organic fiber. For this purpose, the hybrid fiber reinforced concrete containing amorphous steel fiber(ASF) with polyamide(PA) and polyvinyl alcohol(PVA) fiber, respectively were made according to their total volume fraction of 0.5% for water-binder ratio of 33%, and then the characteristics such as the workability, compressive strength, and flexural strength of those were investigated. It was observed from the test results that the workability and compressive strength at 7 and 28 days were decreased and the flexural strength at 7 and 28 days was increased with increasing ASF and decreasing organic fiber.

• 에너지공학
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• 제25권3호
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• pp.130-135
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• 2016

본 연구에서는 비정질 강섬유 혼입 바닥몰탈을 이용한 바닥난방시스템과 일반 몰탈을 사용한 바닥난방시스템의 열성능을 비교 평가하기 위하여 시뮬레이션을 실시하였다. 시뮬레이션은 온수공급온도를 변화시켰으며 다음과 같은 결론을 얻었다. 바닥의 표면온도, 실내의 공기온도 등을 검토 결과 강섬유온돌을 사용할 경우에는 실내공기를 기준으로 하면 강섬유온돌이 일반온돌에 비해 7~9%에 가까운 열효율이 상승되었으며, 바닥의 온도를 기준으로 하면 2~4% 온도상승이 일어나는 것으로 나타났다.