HIGH-DURABLE STRUCTURE BURIED TYPE FORMWORK METHOD

摘要

PROBLEM TO BE SOLVED: To repair the deteriorating section of a concrete structure with high efficiency in a short time. SOLUTION: The deteriorating section of a concrete structure to be repaired is scraped, a screw anchor 11 is buried to a deteriorating-section scraping surface 1a in a non-extractable manner so that one end is projected slightly from the scraping surface 1a, and one half section of a long nut member 14 is screwed at the projecting end of the screw anchor 11 and one end of a screw 15 for supporting is screwed and inserted to the other half section of the long nut member 14. A cement mortar composite board 17 having built-in carbon fibers is inserted to the screw 15 for supporting while a supporting member 19 supporting the screw 15 is inserted and fixed by a nut 21, and a section between the deteriorating-section scraping surface 1a and the composite board 17 is filled with fillers such as mortar. The fillers cure and the screw 15 for supporting is detached from the long nut member 14 and the supporting member 19 is removed, and a bolt for fixing is screwed, inserted and clamped to the long nut member 14 in place of the member 19 and the composite board 17 is fixed.