Concrete Tunnel Lining Trolley for Subway  

Concrete Tunnel Lining Trolley for Subway Subway Tunnel Lining are a fundamental part of ensuring the structural integrity of tunnels, but pumping and placing the concrete for these jobs is a cumbersome process. Numerous Subway Tunnel Formwork challenges can arise. For example: Access within the Tunnel Lining is very limited, so concrete with very good flow is critical.  Conventional concrete Construction Inner Wall Trolley is not ideal for this application since it does not flow well and it can cause an obstruction in the pump, resulting in costly delays.  Control flow concrete was created to bridge the gap between conventional concrete and self-compating concrete. The compressive strengths of Tunnel Lining control flow concrete and conventional concrete are equivalent. However, control flow concrete offers higher flow at a lower cost than self-compating concrete, and Subway Tunnel Formwork is also segregation resistant, making Subway Tunnel Lining a good soluti…