Fiber sheets for repairing and reinforcing concrete

Carbon Fiber Sheets

FF System Products

Outline

High-strength fiber sheet for seismic reinforcement, load-bearing enhancement, and peeling prevention

Carbon fiber sheets are fiber sheets for repairing and reinforcement of concrete structures using carbon fibers which have around one quarter the specific gravity of iron and an approximately 10 times greater tensile strength. They are affixed to existing concrete materials, and are further strengthened by bonding between the fibers using an impregnating adhesive resin. They exhibit the same effect as increasing the iron reinforcing bar amount using carbon fiber reinforced plastic (CFRP) forming.

Characteristics

  • The 400-600g mass per unit product is a knit type which exhibits a favorable resin impregnating ability.

Application

One-direction type

  • Seismic reinforcement for railroad, road bridge piers and structural columns
  • Reinforcement of bridge beams, structural crossbeams and structural slabs
  • Floor slab durability improvement

Two-direction type

  • Tunnel lining to prevent peeling off
  • Concrete viaduct repair
  • Countermeasures against cracks and peeling of concrete structures

Standard / specification

One-direction Carbon Fiber Sheets / Specification

Product name Product No Fiber type Weight per area
(g/m2)
Tensile strength
(N/mm2)
Tensile elasticity
(kN/mm2)
Design thickness
(mm)
Width
(mm)
Length
(m)
FF sheet CR120 High-strength carbon fiber 200 3,400 or more 245 0.111 500 100
CR130 300 0.167
CR140K 400 0.222 50
CR145K 450 0.250
CR160K 600 0.333
  • *Other sheet width and length requirement, please contact us.

Two-direction Carbon Fiber Sheets / Specification

Product name Product No Fiber type Weight per area(g/m2) Tensile strength(N/mm2) Tensile elasticity(kN/mm2) Design thickness
(Warp/Weft)
(mm)
Width
(mm)
Length
(m)
FF sheet CR220 High-strength carbon fiber 200 2,900 or more 245 0.0556/0.0556 1000 50

Related products / construction methods