| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a repair method of a concrete floor slab end part lower surface, capable of preventing the generation of a cavity at the interface of a surface layer concrete removal surface which is an existing surface and newly filled repair mortar, and attaching the filled repair mortar to the surface layer concrete removal surface with strong attaching force. <P>SOLUTION: The repair motor 18 is injected by inserting a mortar injection hose 17 under a reinforcement bar 7 inside a repair mortar filling space 12 formed under the surface layer concrete removal surface, ruler members 19A and 19B for limiting the expansion of the repair mortar injected by the mortar injection hose are inserted under the reinforcement bar inside the space, and the repair mortar injecting operation is repeated while moving the mortar injection hose and the ruler members inside the space. By limiting the expansion of the injection mortar by the ruler members, wraparound of the injection mortar around the reinforcement bar is urged and the reinforcement bar is buried in the injection mortar. <P>COPYRIGHT: (C)2012,JPO&INPIT |
