Patent ID: 11933059
Assignee: DENKA COMPANY LIMITED
Field: Surface technology, coating (Chemistry)
Classification: CPC E  B  D | IPC B  D  E

Claim 14:
15. A method for reinforcing a concrete structure, the method comprising the steps of:
applying an adhesive for concrete onto the fiber sheet according to claim 1 or a fiber sheet obtained by the method for manufacturing a fiber sheet for reinforcing a concrete structure comprising the steps of:
impregnating a matrix resin into a filament-based, multi-axial mesh sheet, wherein the multi-axial mesh sheet has a base weight amount in a range of 500 g/m2 to 1000 g/m2; and
curing and/or immobilizing the impregnated matrix resin by heat treatment and/or active energy ray irradiation treatment such that the multi-axial mesh sheet and the matrix resin are integrated into a fiber sheet; and

installing the fiber sheet on a surface of a concrete structure, then curing the adhesive to form a reinforcing layer on the surface, wherein the reinforcing layer has a tensile strength of 150 kN/m or more per unit length, as measured by using a “B-type specimen” prepared by a process based on JIS A 1191: 2004.