In the civil infrastructure sector, and particularly in tunnel construction, enormous quantities of materials are consumed due to complex soil-structure interactions and high durability requirements for the structures. The production of these materials is associated with significant CO2 emissions and resource consumption. Standard structural tunnel systems typically consist of concrete segments, known as tubbings, which are arranged into rings to form the tunnel lining. Currently, tubbings used in tunnel construction are generally produced using Portland cement, which results in high manufacturing-related CO2 emissions of approximately 700-1000 kg CO2 per m³ of concrete. This is largely due to the stringent requirements for early strength development in these precast elements. Achieving a compressive strength of 15 MPa within 8 hours is the standard in the production of tubbings.