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Preventive Effects of Fibers on Spalling of UFC at High Temperatures

Mitsuo Ozawa 1 ,
Zhou Bo 2 ,
Yuichi Uchida 3 ,
Hiroaki Morimoto 4
1 Japan Department of Environmental Engineering Science, Gunma University, 1-5-1Tenjin-cho, Kiryu city, Gunma
2 Graduate school of Civil Engineering, Gifu University, 1-1, Yanagido, Gifu city, Japan
3 Information and Multimedia Center, Gifu University, 1-1, Yanagido, Gifu city, Japan
4 Department of Civil Engineering, Gifu University, 1-1, Yanagido, Gifu city, Japan

Journal of Structural Fire Engineering

ISSN: 2040-2317

Article publication date: 19 August 2014

52

Abstract

This paper investigates the relationship between spalling behavior and weight loss for ultra-high-strength fiber-reinforced concrete (UFC) containing different types short fibers (jute, PP, WSPVA) in high-temperature environments at 400, 600 and 800 °C. The explosive spalling that occurred under these conditions caused severe damage to the control specimen but only slight damage to the specimen with jute fiber. It was therefore inferred that adding 0.19% by volume of natural jute fibers (length: 12 mm) to UFC is effective in the prevention of spalling-related damage.

Keywords

Citation

Ozawa, M., Bo, Z., Uchida, Y. and Morimoto, H. (2014), "Preventive Effects of Fibers on Spalling of UFC at High Temperatures", Journal of Structural Fire Engineering, Vol. 5 No. 3, pp. 229-238. https://doi.org/10.1260/2040-2317.5.3.229

Publisher

:

Emerald Group Publishing Limited

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