| 摘要 |
The object of this invention is to provide a fiber-reinforced concrete cask that ensures easy working, enables reducing working cost, excels in strength, durability and heat resistance and enables minimizing cracking; a process for fabrication of the same; and a supporting frame for molding the concrete cask. In particular, concrete cask ( 10 ) formed through injecting and solidification of concrete ( 11 ) is characterized in that sheets of reinforcement fibers having a thermal expansion coefficient equal to or lower than that of concrete ( 11 ) are provided on at least the outer circumferential surface and the inner circumferential surface of the concrete cask ( 10 ) and that the inner circumferential surface of outer sheet ( 21 ) and the outer circumferential surface of inner sheet ( 22 ) are connected with each other by strings of reinforcement fibers ( 23 ). Preferably, carbon fibers are used as the reinforcement fibers.
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