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Melting Effect on Fiber to Prevent Spalling on High Strength Concrete
Corresponding Author(s) : Taegyu Lee
Asian Journal of Chemistry,
Vol. 27 No. 11 (2015): Vol 27 Issue 11
Abstract
In order to systematically examine the explosive spalling of high strength concrete, it was used small size specimen to evaluate explosive spalling property and temperature history according to ISO-834 fire curve. Also, optimizing condition of mixed fiber was confirmed by calculating the weight loss of fiber based on heat transfer analysis of inner concrete. Based on melting point of fiber, we used three fiber types [which were polyethylene (110 °C), polypropylene (165 °C), nylon fiber (225°C)]. Mixed fiber as 0.15, 0.25 % of concrete volume, test on spalling properties, TG-DTA of fiber and FEM analysis were performed.
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- P. Kalifa, F.D. Menneteau and D. Quenard, Cement Concr. Res., 30, 1915 (2000); doi:10.1016/S0008-8846(00)00384-7.
- K.D. Hertz, Fire Saf. J., 38, 103 (2003); doi:10.1016/S0379-7112(02)00051-6.
- P. Kalifa, G. Chéné and C. Gallé, Cement Concr. Res., 31, 1487 (2001); doi:10.1016/S0008-8846(01)00596-8.
- Committee European de Normalisation (CEN), prENV 1992-1-2: Eurocode 2: Design of Concrete Structures, Part 1-2: Structural Fire Design, CEN/TC 250/SC 2, pp. 59-62 (1993).
References
P. Kalifa, F.D. Menneteau and D. Quenard, Cement Concr. Res., 30, 1915 (2000); doi:10.1016/S0008-8846(00)00384-7.
K.D. Hertz, Fire Saf. J., 38, 103 (2003); doi:10.1016/S0379-7112(02)00051-6.
P. Kalifa, G. Chéné and C. Gallé, Cement Concr. Res., 31, 1487 (2001); doi:10.1016/S0008-8846(01)00596-8.
Committee European de Normalisation (CEN), prENV 1992-1-2: Eurocode 2: Design of Concrete Structures, Part 1-2: Structural Fire Design, CEN/TC 250/SC 2, pp. 59-62 (1993).