UK’s First Steel Fibre Reinforced Concrete Tunnel Ring
Heathrow Baggage Tunnel (1994 – 1996)
The UK’s first application of steel fibre reinforced (only) concrete tunnel lining, eliminating the need for reinforcement steel and resulting in a substantial reduction in the cost of the tunnel lining. The innovative solution provided an ultra-thin, high-strength lining with significant reduction in damage during construction.
The use of steel fibres has since become commonplace in tunnel lining design.