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Prestressed Concrete Sleepers AS 1085.14:2019 Railway track material Part 14: Prestressed concrete sleepers Infrastructure Standard Please note this is a RISSB Australian Standard Draft Document content exists for RISSB product development purposes only and should not be relied upon or considered as final published content. Any questions in relation to this document or RISSB’s accredited development process should be referred to RISSB. RISSB Office Phone: Email: Web: (07) 7 3724 0000 [email protected] www.rissb.com.au Overseas: +61 7 3724 0000 AS 1085.14:2019 Railway track material Part 14: Prestressed concrete sleepers Assigned Development Manager Name: Anthony McDermott Phone: (07) 3724 0000 Email: [email protected] AS 1085.14:2019 Railway track material Part 14: Prestressed concrete sleepers This Australian Standard® AS 1085.14 Railway track material Part 14: Prestressed concrete sleepers was prepared by a Rail Industry Safety and Standards Board (RISSB) Development Group consisting of representatives from the following organisations: Click here to enter the organisations represented on the Development Group. Tab between them. The Standard was approved by the Development Group and the Enter Standing Committee Standing Committee in Select SC approval date. On Select Board approval date the RISSB Board approved the Standard for release. Choose the type of review Development of the Standard was undertaken in accordance with RISSB’s accredited process. As part of the approval process, the Standing Committee verified that proper process was followed in developing the Standard. RISSB wishes to acknowledge the positive contribution of subject matter experts in the development of this Standard. Their efforts ranged from membership of the Development Group through to individuals providing comment on a draft of the Standard during the open review. I commend this Standard to the Australasian rail industry as it represents industry good practice and has been developed through a rigorous process. sleepers material Paul Daly Chief Executive Officer Rail Industry Safety and Standards Board concrete 1085.14:2019track Comment Keeping StandardsAS up-to -date Australian Standards developed by RISSB are living documents that reflect progress in science, technology and systems. To maintain their currency, Australian Standards developed by RISSB are periodically reviewed, and new editions published when required. Between editions, amendmentsPublic could be issued. Australian Standards developed by RISSB could also be withdrawn.Railway It is important that readers assure themselves they are using a current Australian Standard developed by RISSB, which should include any amendments that have beenfor issued since the Standard was published. Information about Australian Standards developed byPrestressed RISSB, including amendments, can be found by visiting www.rissb.com.au. RISSB welcomes suggestions for improvements, and asks readers to notify us immediately of any apparent inaccuracies or ambiguities. Members are encouraged to use the change request feature of the RISSB website at: http://www.rissb.com.au/products/14: . Otherwise, please contact us via email at [email protected] or write to Rail Industry Safety and Standards Board,Draft PO Box 518 Spring Hill Qld 4004, Australia. Part RISSB ABN 58 105 001 465 Page 1 Accredited Standards Development Organisation AS 1085.14:2019 Railway track material Part 14: Prestressed concrete sleepers AS 1085.14:2019 Railway track material Part 14: Prestressed concrete sleepers Document details sleepers First published as: Enter first publication identifier (AS XXXX:yyyy) ISBN Enter ISBN. Published by SAI Global Limited under licence from the Rail Industrymaterial Safety and Standards Board , PO Box 518 Spring Hill Qld 4004, Australia concrete Copyright 1085.14:2019track Comment © RISSB All rights are reserved. No part of this work can be reproduced or copied in any form or by any means, electronic or mechanical, including photocopying,AS without the written permission of RISSB, unless otherwise permitted under the Copyright Act 1968. Public Railway for Prestressed Notice to users 14: This RISSB product has been developedDraft using input from rail experts from across the rail industry and represents good practice for the industry. The reliance upon or manner of use of this RISSB product is the sole responsibility of the user who is to assess whether it meets their organisation’s operational environment and risk profile. Part RISSB ABN 58 105 001 465 Page 2 Accredited Standards Development Organisation AS 1085.14:2019 Railway track material Part 14: Prestressed concrete sleepers Document control Document identification Designation / Title AS 1085.14:2019 Railway track material Part 14: Prestressed concrete sleepers Document history Publication Version Effective Date Reason for and Extent of Change(s) 2019 Select Board approval date sleepers material Approval Name concreteDate Rail Industry Safety and Standards1085.14:2019 Board track CommentSelect Board approval date AS Public Railway Prestressedfor 14: Draft Part RISSB ABN 58 105 001 465 Page 3 Accredited Standards Development Organisation AS 1085.14:2019 Railway track material Part 14: Prestressed concrete sleepers Contents 1 Introduction ................................................................................................................... 7 1.1 Purpose .......................................................................................................... 7 1.2 Scope ............................................................................................................. 7 1.3 Compliance ..................................................................................................... 8 1.4 Referenced documents ................................................................................... 8 1.5 Definitions ....................................................................................................... 9 1.6 Notation ........................................................................................................ 11 2 Context of use ............................................................................................................ 15 2.1 Function ........................................................................................................ 15 2.2 Action............................................................................................................ 15 3 Performance requirements and testing ....................................................................... 16 3.1 General ......................................................................................................... 16 3.2 Testing ................................................................................................sleepers.......... 16 3.2.1 General ......................................................................................................... 16 3.2.2 Type testing .................................................................................................. 16 3.2.3 Proof testing.................................................................................................. 17 3.3 Pre-stressed concrete sleeper design ................................material........................... 17 3.3.1 Design principles .......................................................................................... 17 3.3.2 Shape and dimensions ................................................................................. 17 3.3.3 Design ballast contact pressure ................................concrete................................ .... 17 3.4 Sleeper integrity1085.14:2019 ................................track................................ Comment............................ 18 3.4.1 General ......................................................................................................... 18 3.4.2 SleeperAS materials .......................................................................................... 18 3.4.3 Manufacture .................................................................................................. 18 3.4.4 Permissible stresses for design ..................................................................... 18 3.4.5 Vertical load tests ................................Public................................ ......................... 19 3.5 ServiceRailway life ................................ .................................................................... 21 3.5.1 General ................................................................for ......................................... 21 3.5.2 Concrete durabilityPrestressed ................................................................ ........................ 21 3.5.3 Clear tendon cover........................................................................................ 21 3.5.4 Rail seat repeated load test .......................................................................... 21 3.6 Rail14: restraint and support .............................................................................. 21 3.6.1 General ................................Draft ......................................................................... 21 3.6.2 Rail fastening systems .................................................................................. 21 3.6.3 Fastening insert pull-out test ......................................................................... 22 3.6.4Part Fastening insert torque test ..........................................................................
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