Superiority of Unit Serial Method Used in CRTS III-Type Pretensioning Ballastless Track Slab Production

High-speed railway ballastless track two-way pretensioning prestressed track slab by the unit serial method is a new type of track slab prestressed system developed in China. The research group developed the track slab production equipment and tooling and formed a 24 h production process. This is the first time in the world to achieve large-scale production of two-way pretensioning prestressed track slab through production lines. Also, this method has been tested and put into production in Shandong Linqu. Compared to the traditional matrix method of the track slab production process, this new method greatly improves the production efficiency and reduces the manufacturing cost of track slab. This can fulfill the high volume demand of track slab raised by “The Belt and Road Initiative” strategy.