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Fastener Uplift Test

 

SECTION 5: Fastener Uplift Test

 

Test Procedure:

1. A fully assembled concrete tie with a short piece of rail shall be arranged.
2. Applied load gradually to lift the rail until the rail base clear of the rail pad or the rail pad clear of the rail seat. The load including the unsupported weight of the tie shall be recorded and released the load.
3. A load equal to 1.5 times of the recorded load but not exceeding 50 kN shall then be applied in the same manner.

 

Acceptance Criteria:

The sleeper and fastener shall be considered satisfactory if the fastener inserts do not pull out or loosen no part of the fastener system fractures, and the rail is not released.