CRACKING PREVENTING METHOD OF REMAINING FORMWORK PANEL, AND REMAINING FORMWORK PANEL

摘要

PROBLEM TO BE SOLVED: To provide a cracking preventing method of a remaining formwork panel and a remaining formwork panel used in the preventing method which prevents cracking generated in a remaining formwork panel by shrinkage force of concrete.;SOLUTION: In a cracking preventing method of a remaining formwork panel, a connected metal fitting 3 covered with an elastic resin cover material 4 is provided in a panel body 2 at a range which is at least 10 mm from a back face of the panel body 2 in a remaining formwork panel 1. After constructing a remaining formwork 10, concrete 12 is installed and cured. A part covered with the elastic resin cover material 4 of the connected metal fitting 3 is not compacted by the concrete 12. A cracking displacement generated by shrinkage of the concrete 12 and a cracking displacement generated by external force in the concrete 12 are not hardly transferred to the panel body 2 by elastic displacement follow-up function and the like of the elastic resin cover material 4. Thus, generation of cracking in the remaining formwork panel 1 after construction is prevented.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2019,JPO&INPIT