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
Type	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	--	--	--