Abstract: This invention provides a concrete having excellent exploding resistance, comprising a fiber as one constituent material, wherein said concrete has a compressive strength of 50 N/mm2 or more, a bending strength of 6 N/mm2 or more, and a ratio of the bending strength to the compressive strength is 15 or less. Upon explosion of an explosive material near a structure, a part of the structure is separated by explosion energy. In general, the separation of the structure on the side opposite to the side facing explosion is larger than that of the side facing explosion, it could trigger collapse of concrete, and the separation on this side has a larger risk of injuring persons within the structure. Since the present invention has the effect of reducing a separated volume, it can be used for various structures as a concrete for lifesaving or for preventing the collapse of the structure.