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ASTM D5824-98(2023)

(Test Method)

Standard Test Method for Determining Resistance to Delamination of Adhesive Bonds in Overlay-Wood Core Laminates Exposed to Heat and Water

Standard Test Method for Determining Resistance to Delamination of Adhesive Bonds in Overlay-Wood Core Laminates Exposed to Heat and Water

SIGNIFICANCE AND USE
4.1 This test method measures quantitatively the effects of water soaking and drying, and their associated swelling and shrinking stresses on adhesive bonds in overlay-laminated assemblies.  
4.2 Adhesive bond performance is based on the ability of the adhesive and adhesive bonds to resist delamination during accelerated exposure to water and heat.  
4.3 Resistance to delamination when subjected to environmental factors is critical to the performance of the laminated assembly in service.  
4.4 This test method is to be used to determine the quality of adhesive bonds in overlay-wood core laminates after the adhesive has been certified by a specification appropriate for the product, class, and end use.
SCOPE
1.1 This test method provides a procedure to determine the quality of bond between an overlay and a wood core in an adhesively bonded laminate. The quality of bond is determined by measuring the resistance to delamination of the adhesively bonded laminate when tested under specific conditions of preparation, conditioning, and testing. Such products include, but are not limited to, window and door components, such as stiles and rails, and other overlaid panels. Typical wood-based cores are finger-jointed lumber, particleboard, oriented strand board, and hardboard. Typical overlays would be veneer, high-pressure laminate, high-density polyethylene, and fiberglass-reinforced plastic.  
1.2 Adhesive bond performance as measured by resistance to delamination in this test method is suitable for use in adhesive product development, manufacturing quality control, and monitoring bonding processes.  
1.3 This test method does not provide guidance for determining bond line performance for plywood products.  
1.4 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.  
1.5 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

Status
Published
Publication Date
30-Apr-2023
ICS
79.060.01 - Wood-based panels in general
Technical Committee
D14 - Adhesives
Drafting Committee
D14.30 - Wood Adhesives
Current Stage
Ref Project

Relations

Refers
ASTM D5266-13(2020) - Standard Practice for Estimating the Percentage of Wood Failure in Adhesive Bonded Joints
Effective Date
01-Apr-2020
Refers
ASTM D4442-20 - Standard Test Methods for Direct Moisture Content Measurement of Wood and Wood-Based Materials
Effective Date
01-Mar-2020

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ASTM D5824-98(2023) - Standard Test Method for Determining Resistance to Delamination of Adhesive Bonds in Overlay-Wood Core Laminates Exposed to Heat and WaterASTM D5824-98(2023) - Standard Test Method for Determining Resistance to Delamination of Adhesive Bonds in Overlay-Wood Core Laminates Exposed to Heat and Water
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ASTM D5824-98(2023) - Standard Test Method for Determining Resistance to Delamination of Adhesive Bonds in Overlay-Wood Core Laminates Exposed to Heat and Water
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Standards Content (Sample)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: D5824 − 98 (Reapproved 2023)
Standard Test Method for
Determining Resistance to Delamination of Adhesive Bonds
in Overlay-Wood Core Laminates Exposed to Heat and
1
Water
This standard is issued under the fixed designation D5824; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
1.1 This test method provides a procedure to determine the
quality of bond between an overlay and a wood core in an
2. Referenced Documents
adhesively bonded laminate. The quality of bond is determined
2
2.1 ASTM Standards:
by measuring the resistance to delamination of the adhesively
D907 Terminology of Adhesives
bonded laminate when tested under specific conditions of
D4442 Test Methods for Direct Moisture Content Measure-
preparation, conditioning, and testing. Such products include,
ment of Wood and Wood-Based Materials
but are not limited to, window and door components, such as
D5266 Practice for Estimating the Percentage of Wood
stiles and rails, and other overlaid panels. Typical wood-based
Failure in Adhesive Bonded Joints
cores are finger-jointed lumber, particleboard, oriented strand
E6 Terminology Relating to Methods of Mechanical Testing
board, and hardboard. Typical overlays would be veneer,
E41 Terminology Relating to Conditioning (Withdrawn
high-pressure laminate, high-density polyethylene, and
3
2019)
fiberglass-reinforced plastic.
E177 Practice for Use of the Terms Precision and Bias in
1.2 Adhesive bond performance as measured by resistance
ASTM Test Methods
to delamination in this test method is suitable for use in
E691 Practice for Conducting an Interlaboratory Study to
adhesive product development, manufacturing quality control,
Determine the Precision of a Test Method
and monitoring bonding processes.
3. Terminology
1.3 This test method does not provide guidance for deter-
mining bond line performance for plywood products. 3.1 Definitions:
3.1.1 Certain terms in this test method are defined in
1.4 The values stated in inch-pound units are to be regarded
Terminologies D907, E6, and E41.
as standard. The values given in parentheses are mathematical
3.1.2 delamination, n—the separation of layers in a laminate
conversions to SI units that are provided for information only
because of failure of the adhesive, either in the adhesive itself
and are not considered standard.
or at the interface between the adhesive and the adherend. (See
1.5 This standard does not purport to address all of the
Terminology D907.)
safety concerns, if any, associated with its use. It is the
3.1.3 overlay, n—a uniform layer of material, usually in the
responsibility of the user of this standard to establish appro-
form of a sheet, adhesively bonded to an adherend with the
priate safety, health, and environmental practices and deter-
purpose of improving the appearance or physical properties of
mine the applicability of regulatory limitations prior to use.
the laminate.
1.6 This international standard was developed in accor-
3.2 Definitions of Terms Specific to This Standard:
dance with internationally recognized principles on standard-
3.2.1 edge, n—in an adhesively bonded laminate, the di-
ization established in the Decision on Principles for the
mension along its length [and parallel to the grain] where the
Development of International Standards, Guides and Recom-
overlay is bonded to the core.
1 2
This test method is under the jurisdiction of ASTM Committee D14 on For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Adhesives and is the direct responsibility of Subcommittee D14.30 on Wood contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Adhesives. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved May 1, 2023. Published May 2023. Originally the ASTM website.
3
approved in 1995. Last previous edition approved in 2017 as D5824 – 98 (2017). The last approved version of this historical standard is referenced on
DOI: 10.1520/D5824-98R23. www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D5824 − 98 (2023)
3.2.2 end, n—in an adhesively bonded laminate, the dimen- 6. Test Specimens
sion which is perpendicular to the length of the laminate where
...

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5.1 Natural weathering tests can take several years and accelerated weathering evaluations often run for cycles requiring several weeks or months before obtaining useful data. Correlating wood panels selection with desired weathering performance characteristics assists a coatings experimenter in maximizing information in the desired time frame.  
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5.1 This practice documents cyclic performance benchmarks for shear walls constructed with wood structural panel (WSP) sheathing attached to dimension lumber framing using common or galvanized box nails as defined in 3.2.8.  
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SCOPE
1.1 This practice establishes a method for alternative shear wall systems to compare seismic equivalency parameters (SEP) derived from cyclic in-plane racking tests to performance targets derived from tests of light-frame shear walls constructed with wood structural panel (WSP) sheathing attached to dimension lumber framing using nails.  
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1.3 This practice is applicable only to shear walls where all vertical-load-supporting elements are intact at the end of the in-plane lateral load test and remain capable of supporting gravity loads. Wall assemblies whose vertical-load-supporting elements buckle or otherwise become incapable of supporting gravity loads during the lateral load test are outside the scope of this practice. In addition, for bearing wall systems, this practice assumes that the shear wall system under evaluation has documented design procedures to ensure that vertical-load-supporting elements have adequate resistance to the combined effect of compression loads caused by overturning and gravity loads.  
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1.6 This practice is not intended to preclude other rational means of evaluating seismic performance.  
1.7 This practice assumes that the alternative shear wall system may be used alone or in combination with wood-frame shear walls sheathed with wood structural panels.  
1.8 Units—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.  
1.9 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.10 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT)...

  • Standard
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  • Standard
    10 pages
    English language
    sale 15% off