• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2009.04a
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• pp.520-525
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• 2009

본 연구에서는 실내 내장재료 많이 사용되고 있는 벽지를 대상으로 선정하여 연소특성을 고찰하고자 콘 칼로리미터, 연기밀도 시험기, 발화점 시험기, 산소지수 시험기를 이용하여 각각의 발열성, 발연성, 착화성, 난연성을 측정하였다. 벽지의 발열특성은 기능성 벽지인 쑥벽지와 특정벽지인 질석벽지가 다른 벽지에 비해 많은 열을 방출하는 것으로 나타났으며, 방염벽지의 연기밀도가 130.8로 가장 높은 값을 나타냈다. 질석벽지는 61초에 착화가 되어 다른 벽지에 비해 착화시간이 최소 4배 이상 늦게 착화가 되었으며, 발화온도 또한 270.8$^{\circ}C$로 높게 나타났다. 산소지수측정 범위는 18.9${\sim}$23.2%의 값으로 공기 중의 산소농도와 비슷한 범위인 것을 확인할 수 있었다.

• 레미콘
• /
• no.1 s.90
• /
• pp.25-37
• /
• 2007

• Cement Symposium
• /
• s.35
• /
• pp.109-114
• /
• 2008

• Cement Symposium
• /
• no.25
• /
• pp.129-134
• /
• 1997

• Fire Protection Technology
• /
• s.58
• /
• pp.27-35
• /
• 2015

• Fire Protection Technology
• /
• s.55
• /
• pp.34-40
• /
• 2013

• Proceedings of the Materials Research Society of Korea Conference
• /
• 1996.05a
• /
• pp.110-110
• /
• 1996

• Cement Symposium
• /
• s.40
• /
• pp.37-45
• /
• 2013

• Proceedings of the KWS Conference
• /
• 2001.10a
• /
• pp.99-102
• /
• 2001

• Journal of the Korean Recycled Construction Resources Institute
• /
• v.10 no.1
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• pp.66-73
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• 2022

The purpose of this study was to develop self-heating concrete by utilizing the conduction resistance of concrete in order to reduce the risk of occurrence of black ice in the concrete pavement in winter and to prevent damage caused by freez-thawing effect. For this purpose, it was attempted to evaluate the strength and temperature exothermic characteristics using powder and liquid waste CNTs and a waste cathode agent as a conduction promotion. It was analyzed that liquid waste CNT had an effective dispersion degree in the mortar and a small decrease in strength occurred. In addition, DC 24 V was supplied by applying steel mesh, copper foil and copper wire to the mortar as electrodes, and the temperature change characteristics according to the mixing ratio of spent CNTs, anodes and carbon fibers were evaluated. In addition, by evaluating the temperature characteristics according to the electrode spacing from the selected optimal mixture, it was confirmed that it had sufficient heating characteristics up to an electrode spacing of 100 mm up to AC 50 V.