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Ballastless Track Slab
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Ballastless Track Slab is an important part of newly track structure---Ballastless Track, which is precast by prestressed reinforced concrete structure within factories, to be classified into CRTS I, CRTS II, CRTS III track slab and double-block CRTS I and CRTS II track slab, applies to high speed railway, intercity high speed railway and city subway and so on.
Sketch Map of CRTS III Track Slab
Track Slab Types
Type | Double block | Plate | |||
CRTS I type double block |
CRTS II type double block |
CRTS I type plate | CRTS II type plate | CRTS III type plate | |
Shape | -- | Flat frame board |
Standard board / Special board / Compensation board |
Standard board | |
Prestressed construction method | No | Post-tensioning | Preemptive method |
Post-tensioning Preemptive method |
|
Whether to polish | No | No | Yes | No | |
Track pad | No | CA mortar | CA mortar | Self-compacting concrete | |
Track limit mode | Pedestal | Convex block | Longitudinal reinforcement | U-shaped steel bar connected to the base | |
Track construction method | Tool rail method | Mechanical vibration embedding | -- | -- | -- |
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