ASTM D3535-07

Standard Test Method for Resistance to Creep Under Static Loading for Structural Wood Laminating Adhesives Used Under Exterior Exposure Conditions

SCOPE
1.1 This test method covers adhesives suitable for the bonding of wood, including treated wood, into structural laminated wood products for general construction, for marine use, or for other uses where a high-strength general construction, creep-resistant, waterproof adhesive bond is required.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 This 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.

General Information

• Status: Historical
• Publication Date: 28-Feb-2007
• ICS: 79.020 - Wood technology processes
• ICS: 83.180 - Adhesives
• Technical Committee: D14 - Adhesives
• Drafting Committee: D14.30 - Wood Adhesives

Relations

• Replaces: ASTM D3535-00 - Standard Test Method for Resistance to Deformation Under Static Loading for Structural Wood Laminating Adhesives Used Under Exterior (Wet Use) Exposure Conditions
• Effective Date: 01-Mar-2007
• Replaced By: ASTM D3535-07a - Standard Test Method for Resistance to Creep Under Static Loading for Structural Wood Laminating Adhesives Used Under Exterior Exposure Conditions
• Effective Date: 01-May-2007
• Referred By: ASTM D2559-12a(2018) - Standard Specification for Adhesives for Bonded Structural Wood Products for Use Under Exterior Exposure Conditions
• Effective Date: 01-Mar-2007

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:D3535–07
Standard Test Method for
Resistance to Creep Under Static Loading for Structural
Wood Laminating Adhesives Used Under Exterior Exposure
1
Conditions
This standard is issued under the fixed designation D 3535; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope may be comprised of pieces end-joined to form any length, of
pieces placed or glued edge-to-edge to make wider ones or of
1.1 This test method covers adhesives suitable for the
pieces bent to curved form during gluing. (Synonym glulam)
bonding of wood, including treated wood, into structural
ANSI/AITC A190.1 – 2002, American National Standard for
laminated wood products for general construction, for marine
Wood Products—Structural Glued Laminated Timber (Edited
use, or for other uses where a high-strength general construc-
to conform with ASTM format).
tion, creep-resistant, waterproof adhesive bond is required.
3.1.3 For other terms used in this test method, refer to
1.2 The values stated in SI units are to be regarded as the
Terminology D 907.
standard. The values given in parentheses are for information
only.
4. Summary of Test Method
1.3 This standard does not purport to address all of the
4.1 Gluedlaminationsaresubjectedtoaconstantloadunder
safety concerns, if any, associated with its use. It is the
various combinations of temperature and relative humidity.
responsibility of the user of this standard to establish appro-
The amount of creep is measured.
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
5. Significance and Use
5.1 This test method rates the performance of the adhesive
2. Referenced Documents
2
in laminated wood as measured by resistance to creep under
2.1 ASTM Standards:
static load.
A 125 Specification for Steel Springs, Helical, Heat-Treated
5.2 This test method will normally be used in conjunction
D 907 Terminology of Adhesives
with Specification D 2559.
D 2559 Specification for Adhesives for Structural Lami-
nated Wood Products for Use Under Exterior (Wet Use)
6. Apparatus
Exposure Conditions
3
6.1 Compression-Type Creep Tester, as shown in Fig. 1,
required for testing the specimens under the static load. This
3. Terminology
tester consists of:
3.1 Definitions:
6.1.1 Base Plate,
3.1.1 glulam, n—synonym for structural-glued-laminated
6.1.2 Four Tension Rods,
timber.
6.1.3 Spacer Plate,
3.1.2 structural-glued-laminated timber, n—an engineered,
6.1.4 Center Rod,
stress-rated product of a timber laminating plant comprising
6.1.5 Spring,
assemblies of specially selected and prepared wood lamina-
6.1.6 Top Plate, and
tions securely bonded together with adhesives, with the fol-
6.1.7 Nuts.
lowing characteristics: (1) the grain of all laminations is
6.2 Square Metal Spacers, coated with an effective mold-
approximately parallel longitudinally; and (2) the laminations
release agent. Seven are needed for each laminate. Dimensions
3 5
are69.8mm(2 ⁄4in.)longby15.9mm( ⁄8in.)wideby6.4mm
1
This test method is under the jurisdiction of ASTM Committee D14 on
Adhesives and is the direct responsibility of Subcommittee D14.30 on Wood
3
Adhesives. Springs selected must fit within the space provided [approximately 110-mm
Current edition approved March 1, 2007. Published April 2007. Originally (4.3-in.) maximum outside diameter and 300-mm (11.8-in.) maximum overall
approved in 1976. Last previous edition approved in 2000 as D 3535 – 00. height] and should be of corrosion-resistant material (for example, stainless steel,
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or cadmium, or zinc-plated steel), should have a spring constant of 35 000 6 7000
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM N/m (200 6 40 lbf/in.) and a load when fully compressed (that is at solid height) of
Standards volume information, refer to the standard’s Document Summary page on about 4500 N (approximately 1000 lbf). For additional information, refer to
the ASTM website. Specification A 125 for Steel Springs, Helical, Heat Treated.
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D3535–07
Metric Equivalents
mm in. mm in.
1
3.18 ⁄8 127 5
3 1
4.77 ⁄16 139.7 5 ⁄2
3 3
9.53 ⁄8 148 5 ⁄4
7 1
11.1 ⁄16 165.1 6 ⁄2
5 1
15.9 ⁄8 267 10 ⁄2
3
19.1 ⁄4 304.8 12
1
25.4 1 311.1 12 ⁄4
1 1
38.1 1 ⁄2 336.5 13 ⁄4
1 3
54.0 2 ⁄8 415 16 ⁄8
3
60.3 2 ⁄8 660.4 26
1
63.5 2 ⁄2
3
FIG. 1 Compression-Type Creep Tester
2

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