| 摘要 |
PROBLEM TO BE SOLVED: To provide a repair method for the cross section of a concrete structure for completely charging a repair material without producing any air accumulation due to defective charging when the repair material is charged in a repair material charging space between a chipped surface and a form.SOLUTION: When a part to be repaired is chipped, a downwardly recessed part 3 which is chipped to a position higher than the chipped part upper edge of the outer peripheral surface of a concrete structure skeleton 1 is formed in the downwardly chipped surface 2 of a chipped repair space 4, and the outer surface of the chipped repair space 4 is closed by an outer surface closing member such as a form or a spray mortar. A ventilation passage 10 for pressure reduction which communicates with the outside of the repair space communicates with a position near the highest part of the downwardly recessed part, and the repair material (a) is pressurizingly charged in the repair space surrounded by the outer surface closing member and the chipped surface. After the repair material is charged until an air accumulation is left only in the downwardly recessed part, the inside of the downwardly recessed part is depressurized through the ventilation passage 10 for pressure reduction to bleed the air in the air accumulation b so as to distribute the repair material to the entire part of the repair space. |
