AS 3818.6:2010 pdf – Timber- Heavy structural products- Visually graded Part 6: Decking for wharves and bridges.
The following list includes information that should be provided, where applicable, in any contract document. order form or other request for supply:
(a) Product type (i.e.. decking for wharves and bridges).
(b) Dimensions.
(C) Intended use (see AS 3818.1 for considerations on durability and AS 5604 for natural durability ratings).
(d) Length. particularly whether the order is set length. in multiples of short lengths or random lengths with a minimum length.
(e) Tolerance on over-length.
(f) Other tolerances (only when not prescribed by. or when varied from, this Standard).
(g) Details of any particular timber strength group, species or durability requirement (see Note).
(h) Seasoned or unseasoned (timbers complying with this Standard are generally only available unseasoned).
(i) If required. level of treatment, or level of treatment and the type of preservative.
(j) Method of controlling end splits (e.g., nailplate or crystalline wax) and when to be applied (e.g., within 48 h of sawing).
(k) Information on requirements for storage and transport.
(I) Reference to this Standard. i.e., AS 3818.6.
NOTE: Timber should be specified according to its particular use and aucntion should be paid to the desired features of the timber and the expected performance. Where appropriate, the durability class and the strength group of the species required should be nominated. Natural durability ratings for both in-ground and above-ground exposure are given in AS 5604.
A2 STORAGE AD MAITFNANCE
Decking for wharves and bridges usually forms part of a structure in which they would be expensive and often difficult to replace, and therefore—
(a) timber should be carefully and properly stored after purchase and prior to use to avoid degradation: and
(b) a proper inspection and maintenance procedure should be adopted after the structure has been built to facilitate a long service life of the timbers.
For decking for wharves and bridges graded in accordance with this Standard, the stress
grades appropriate for strength groups are given in Table B1.
For design properties appropriate to particular stress grades, see AS 1720.1.
NOTE: When designing for strength, progressive deterioration over the expected life of the
material should be taken into account.
AS 3818.6:2010 pdf – Timber- Heavy structural products- Visually graded Part 6: Decking for wharves and bridges
