Reinforcing fiber sheet, method of manufacturing the same, and method of reinforcing structure with the reinforcing fiber sheet

A reinforcing fiber sheet comprising:

• (a) a support sheet;
• and
• (b) reinforcing fibers which have not yet been impregnated with a matrix resin, said fibers being arranged in one direction on one of the surfaces of said support sheet and attached to the surface with an adhesive layer, wherein the adhesive layer contains a curing accelerator for accelerating the setting of a room-temperature setting type matrix resin.

A reinforcing fiber sheet comprising:

• (a) a support sheet;
• and
• (b) reinforcing fibers which have not yet been impregnated with a matrix resin, said fibers being arranged in one direction on one of the surfaces of said support sheet and attached to the surface with an adhesive layer, wherein the reinforcing fibers include rigid first reinforcing fibers and tough second reinforcing fibers.

A reinforcing fiber sheet comprising:

• (a) a support sheet;
• and
• (b) reinforcing fibers which have not yet been impregnated with a matrix resin, said fibers being arranged in one direction on both surfaces of the support sheet and attached to the surfaces with adhesive layers.

A method of manufacturing a reinforcing fiber sheet having reinforcing fibers on a resin-penetrable support sheet, said method comprising the steps of:

• (a) arranging bundles of the reinforcing fibers in one direction on at least one surface of the support sheet in parallel apart from each other or close to each other, said surface of the support sheet being coated with an adhesive layer, and
• (b) pressing the bundles against the support sheet whereby the reinforcing fibers are adhered through the adhesive layer to the support sheet in one direction in a slightly unfastened state to thereby produce the reinforcing fiber sheet.