| 摘要 |
PROBLEM TO BE SOLVED: To smoothly perform an operation to fill a through part with a fireproof treatment material.SOLUTION: A treatment material body 12 which forms a fireproof treatment material 11 is prepared by housing a block body 13 in an exterior member 14 having a housing part 14a in which the block body 13 is housed. On an inner surface 14b of the exterior member 14, a rib 15 which enhances the strength of the treatment material body 12 is molded integrally over the overall length of the treatment material body 12 to extend along the length direction. The rib 15 thus enhances the strength of the treatment material body 12, so when the fireproof treatment material 11 is inserted into a through hole, the treatment material body 12 becomes hard to elastically deform. Consequently, an operation to fill the through hole with the fireproof treatment material 11 can be smoothly performed. |
