Tunnels

Fiberglass rebar is quickly and easily cut. When installing sewers, tunnels and other infrastructure built using a tunnel boring machine (TBM), GFRP can be used as a primary reinforcement for concrete. In this case, TBM can be drilled easily. A steel reinforcement is a problem for TBM, because it can not drill a wall.

Read more: How fiberglass reinforcement was used in the world