PREN 16730 : DRAFT 2014

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 Requirements for qualification and routine tests
6 Data to be supplied
7 Rules for use of sleepers and bearers with USP
8 Quality control
9 Marking, labelling and packaging
Annex A (normative) - Geometric Ballast Plate (GBP)
Annex B (normative) - Concrete block with USP
Annex C (normative) - Test procedures for stiffness
        measurement of USP with concrete block or of
        USP alone determined with GBP
Annex D (normative) - Test procedures for fatigue behaviour
        with USP applied on concrete block in ballast
Annex E (normative) - Test procedures for bond strength by
        pull-out
Annex F (normative) - Data sheet
Annex G (informative) - General process
Annex H (informative) - Test procedure for measurement of
        high frequency vertical stiffness of USP
Annex I (informative) - Test procedure for fatigue behaviour
        with USP applied on concrete block with GBP
Annex J (informative) - Test procedure for capability for stacked
        stocking of USP
Annex K (informative) - Test procedures for stiffness measurement
        of sleeper with USP with GBP
Annex L (informative) - Test procedure for fatigue behaviour with
        USP applied on sleeper
Annex M (informative) - Alternative test procedure for fatigue
        behaviour with USP applied on sleeper
Annex N (informative) - Test procedures for effect of severe
        environmental conditions
Bibliography

Pertains to concrete sleepers or bearers with Under Sleeper Pads (USP) physically bonded to concrete used in ballast track and defines the test procedures and their acceptance criteria.