The contract includes the delivery of a total of 6 concrete mixing plants for the production of the 3,000,000 m³ of concrete required for the construction of the longest immersed tunnel in the world. In the first step, SBM Mineral Processing delivers a EUROMIX^® 3300 SPACE which will produce the concrete for the construction of the infrastructure. The EUROMIX^® is considered to be trend-setting in super-mobile concrete production due to its performance. In2021, 2 of a total of 5 LINEMIX^® 4500 CM will start work in "Factory B" and start producing concrete for the tunnel elements. Equipped with BHS DKX 4.5 twin-shaft mixers, these systems produce an output of 4.5 m³ concrete per batch. This is a new milestone in terms of production output even for container-mobile SBM concrete mixing systems. "Factory A" will go into operation in mid-2022 and another 3 SBM LINEMIX^® will be involved.

https://www.sbm-mp.at/en/news/news-press-detail/concrete-technology-from-upper-austria-for-the-longest-immersed-tunnel-in-the-world.html