AS 3818.2-1998

1 - AS 3818.2-1998 TIMBER-HEAVY STRUCTURAL PRODUCTS-VISUALLY GRADED - RAILWAY TRACK TIMBERS
4 - PREFACE
5 - CONTENTS
6 - 1 SCOPE
6 - 2 APPLICATION
6 - 3 REFERENCED DOCUMENTS
6 - 4 DEFINITIONS
6 - 5 TIMBER SPECIES
6 - 5.1 General
7 - 5.2 Ordering
7 - 6 DESIGN
7 - 7 ADDITIONAL CONSIDERATIONS
7 - 7.1 General
7 - 7.2 Dimensions, sizes, tolerances and squareness
7 - 7.3 Bow
8 - 7.4 Spring
8 - 7.5 Twist
8 - 7.6 Rail seat area
8 - 8 SLEEPERS - GRADE DESCRIPTIONS
8 - 8.1 Grade 1 rectangular sleepers - grade description
9 - 8.2 Grade 2 rectangular sleepers - grade description
10 - 9 ROUND-BACK SLEEPERS - GRADE DESCRIPTION
10 - 10 SPECIAL SLEEPERS - GRADE DESCRIPTION
11 - 11 BRIDGE TRANSOMS - GRADE DESCRIPTION
13 - APPENDIX A - GUIDANCE FOR PURCHASERS
13 - A1 INFORMATION TO BE INCLUDED IN PURCHASING ORDERS
13 - A2 STORAGE AND MAINTENANCE
14 - APPENDIX B - LIST OF SPECIES PROPERTIES AND USES
19 - APPENDIX C - DESIGN PROPERTIES

Sets out visual grading rules, dimensional tolerances and acceptable species for rail track sleepers, special sleepers for lead, crossing or turnout timbers and bridge transoms. F grades are given for use in the design of bridge transoms. This Standard is to be used in conjunction with AS 3818.1.

This Standard sets out the minimum requirements for visually graded rail track sleepers, special sleepers for lead, crossing or turnout timbers and bridge transoms.NOTE: Purchasing guidelines are given in Appendix A.

First published in part as part of AS 07-1937.
Revised and redesignated in part as AS O10-1938 and AS O11-1938.
Second edition AS 010-1948.
Second edition AS 011-1948.
Int 367-1953 first published 1953.
Revised and redesignated as AS O97-1963.
AS O10-1948, AS O11-1948, AS O57-1949 and AS O97-1963 withdrawn 1996.
AS O10-1948, AS O11-1948, AS O57-1949 and AS O97-1963 revised, amalgamated and redesignated AS 3818.2-1998.