Proceedings of the Korea Institute of Fire Science and Engineering Conference (한국화재소방학회:학술대회논문집)
- 2008.11a
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- Pages.484-489
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- 2008
A Study on Pore Pressure Evaluation of Concrete Lining in Road Tunnel Fire
도로터널 라이닝 화재조건 콘크리트 라이닝 공극압력 특성에 관한 연구
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Park, Kyung-Hoon
(Korea Institute of Construction Technology) ;
- Kim, Heung-Youl (Korea Institute of Construction Technology) ;
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Yoo, Yong-Ho
(Korea Institute of Construction Technology) ;
- Lee, Chul-Ho (Korea Institute of Construction Technology) ;
- Kim, Hyung-Jun (Kwang Il Architure Co. Ltd)
- Published : 2008.11.13
Abstract
We carried out a one-way heating experiment on the PC panel manufactured by changing the filling depths(20,30,40,50mm) of concrete regarding the fire strength in order to measure the inner concrete pressure which is a direct cause of concrete spalling. This fire experiment was conducted under the fire strength conditions of ISO 834 Standard, Modified Hydrocarbon and the maximum value of Pore Pressure was measured. As a result of analyzing the time it took to reach maximum pressure, it showed that the time rising to the maximum pressure of high strength concrete of 40MPa is slower than that of a 24MPa tunnel lining. In case of ISO fire conditions, spalling damage might take place in heating period of
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