| 摘要 |
PROBLEM TO BE SOLVED: To provide a composite FRP-made short linear material for cement reinforcement that has good dispersibility, has high engaging force (adhesion) with cement and has a small coefficient of linear expansion.SOLUTION: The composite FRP-made short linear material for cement reinforcement has a braided structure formed by braiding a plurality of composite FRP filamentary materials having a fiber reinforced resin part produced by impregnating a reinforcement fiber bundle composed of an organic synthetic fiber or an inorganic fiber with a thermosetting resin material, followed by curing and a thermosetting resin coating layer coating the outer periphery of the fiber reinforcement resin part; and thermally fusing the thermoplastic resin coating layer. The thermoplastic resin coating layer has a thickness of 0.02-0.1 mm. The composite FRP-made short linear material for cement reinforcement is produced by braiding the composite FRP filamentary materials having an outer diameter of 0.4-1 mm at a pitch of 6-20 mm and has a length of 10-80 mm. |
