GFRP Rebar in Subway & Tunnel Projects
Tunnels, subway shafts, retaining walls, and underground structures operate in environments with high relative humidity, groundwater leakage, and soil chemicals. Steel reinforcement in these areas is highly susceptible to rust, leading to high maintenance costs.
GFRP Rebar offers permanent durability in sub-grade structures. It is completely immune to groundwater minerals, acidic/alkaline soils, and road salts that leach from overhead surface infrastructure.
Furthermore, in metro tunnel boring machine (TBM) operations, using GFRP Rebar in the temporary soft-eye section allows TBMs to cut through the shaft walls quickly and safely, avoiding the damage to cutting heads that traditional steel rebars would cause.
Soft-Eye Compatible
Easy to cut by Tunnel Boring Machines
Soil Acid Resistant
Immune to soil chemicals & water
