ASTM D25-99(2005)
(Specification)Standard Specification for Round Timber Piles
Standard Specification for Round Timber Piles
ABSTRACT
This specification deals with the standards for unused round timber piles to be used either treated or untreated. This specification, however, does not cover preused piles unless the piles have the quality and design stresses equal to or greater than those prescribed herein. The piles shall be made of sound wood, free of decay, insect attacks, marine borer attack, and Limnoria damage. The piles shall also be cut above the ground swell and have a tapered tip.
SCOPE
1.1 This specification covers the physical characteristics of unused round timber piles to be used either treated or untreated.
1.2 This specification is not intended for preused piles unless the piles have the quality specified by this specification and design stresses equal to or greater than those derived from Method D 2899.
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.4 his standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: D25 – 99 (Reapproved 2005)
Standard Specification for
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Round Timber Piles
ThisstandardisissuedunderthefixeddesignationD25;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope 4.2 Method D2899 provides a basis for specifying the pile
size. This standard gives a procedure for estimating the design
1.1 This specification covers the physical characteristics of
stress at any location along the pile length. As design stress
unused round timber piles to be used either treated or un-
must always exceed that imposed under service conditions, the
treated.
quotient of the structural loads divided by the design stress
1.2 This specification is not intended for preused piles
gives an estimate of the minimum section property required at
unless the piles have the quality specified by this specification
any location.
and design stresses equal to or greater than those derived from
4.3 Under this specification, pile size requirements esti-
Method D2899.
mated at a critical location are extrapolated to either the tip or
1.3 The values stated in inch-pound units are to be regarded
buttendassumingalineartaper.Forthisspecification,pilesare
as standard. The values given in parentheses are mathematical
classified by nominal circumference and length.
conversions to SI units that are provided for information only
and are not considered standard.
5. Quality Requirement (All Piles)
1.4 This standard does not purport to address all of the
5.1 Piles shall be of sound wood, free of decay, insect
safety concerns, if any, associated with its use. It is the
attack, marine borer attack, and Limnoria damage, except as
responsibility of the user of this standard to establish appro-
herein allowed in 13.2 and 14.1.
priate safety and health practices and determine the applica-
5.2 Piles shall be cut above the ground swell and have a
bility of regulatory limitations prior to use.
taper from butt to tip.
2. Referenced Documents 5.3 Piles shall have an average rate of growth measured in
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the outer 50 % of the radius at the pile tip of not less than 6
2.1 ASTM Standards:
rings per inch and shall have an average summerwood content
D9 Terminology Relating to Wood and Wood-Based Prod-
of not less than 33.3 % in the outer 50 % of the tip radius.
ucts
Exception: Piles with less than 6 rings per inch are acceptable
D2555 Practice for Establishing Clear Wood Strength Val-
if the average is 50 % or more summerwood present in the
ues
outer 50 % of the pile tip radius.
D2899 Practice for Establishing Allowable Stresses for
5.4 Piles that cannot be adequately inspected for the physi-
Round Timber Piles
cal requirements specified in this specification due to adhering
3. Species of Wood barnacles or other material shall not be permitted.
3.1 Piles shall be of any species of wood for which clear
6. Lengths
wood strength values are given in Test Methods D2555.
6.1 All piles shall be furnished in lengths specified, except
4. Classification
that tolerances shall be allowed as follows:
6.1.1 Piles 40 ft (12.2 m) and shorter—plus 1 ft (0.3 m),
4.1 Timber piles are commonly used to transfer structural
minus 6 in. (152 mm).
loads to sub surface soil bearing strata by way of friction or tip
6.1.2 Piles41ft(12.5m)orlonger—plus2ft(0.6m),minus
end bearing forces, or both.
6 in. (152 mm).
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This specification is under the jurisdiction ofASTM Committee D07 on Wood
7. Sizes
and is under the jurisdiction of Subcommittee D07.04 on Pole and Pile Products.
Current edition approved Oct. 1, 2005. Published October 2005. Originally 7.1 Pile sizes are specified according to nominal circumfer-
´1
approved in 1915. Last previous edition approved in 1999 as D25 – 99 . DOI:
ence 3 ft from the butt or at the tip. Tables are provided in
10.1520/D0025-99R05.
Appendix X1.1 to facilitate the selection of pile dimensions.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
7.2 The out-of-round ratio (maximum to minimum diam-
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on eter) at the butt or the tip shall not exceed 1.2.
the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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D25 – 99 (2005)
7.3 All circumference measurements shall be taken under 10.1.3 Unpeeled piles require no bark removal.
the bark.
11. Straightness
7.4 Circumference at the butt sh
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