Abstract
Fiber reinforced concrete has been recently employed for tunnel lining in order to obtain higher resistance for exfoliation. The fireproof performance of such concrete, however, is not known sufficiently, e.g. explosion or combustion gas. The present study was conducted for obtaining the fundamental properties of lining concrete against fire temperature. This paper presents the behavior of fiber reinforced concrete from high heating test. Furthermore, the present paper reports the combustion gas of plastic fiber that is often employed for lining concrete. As the results, the combustion gas of plastic fiber was not hazardous for human, and plastic fiber reinforced concrete indicated higher resistant ability for explosion.