ASTM D7469-16

Standard Test Methods for End-Joints in Structural Wood Products

SIGNIFICANCE AND USE
4.1 These test methods are applicable to specimens with or without specific conditioning regimens. Tests are permitted to be performed on specimens that are not at moisture equilibrium, such as under production conditions in a plant, or on specimens that have been conditioned to specified moisture content or durability conditioning prior to testing.  
4.2 These test methods can be used as follows:  
4.2.1 To standardize the determination of strength properties for the material and joint being tested.  
4.2.2 To investigate the effect of parameters that may influence the structural capacity of the joint, such as joint profile, adhesive type, moisture content, temperature, and strength-reducing characteristics in the assembly.  
4.3 These test methods do not intend to address all possible exposure or performance expectations of end-joints. The following are some performance characteristics not considered:  
4.3.1 Long-term strength and permanence of the wood adhesive.  
4.3.2 Time dependent mechanical properties of the joint.  
4.3.3 Elevated temperature performance of the joint.
SCOPE
1.1 This standard provides test methods for evaluating the structural capacity and integrity of end-joints in structural wood products.  
1.2 End-joints are manufactured by adhesive bonding of machined, mated surfaces at the ends of two pieces of lumber to form a joint. Typical end-joint configurations include finger joints and scarf joints. The combination of one or more end-joints and the adjoining sections of the structural wood product within the assembly is considered to be the test specimen.  
1.3 Off-line test methods include: (1) Axial Tension, (2) Bending, and (3) Cyclic Delamination.  
1.4 In-line test methods include: (1) Tension Proofload and (2) Bending Proofload.  
1.5 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.  
1.6 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: 31-Jul-2016
• ICS: 91.080.20 - Timber structures
• Technical Committee: D07 - Wood
• Drafting Committee: D07.01 - Fundamental Test Methods and Properties

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:D7469 −16
Standard Test Methods for
1
End-Joints in Structural Wood Products
This standard is issued under the fixed designation D7469; 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.
INTRODUCTION
Adhesive bonded end-joints are used in structural glued wood products. The bond performance of
these end-joints is only one of several parameters that influence the in-service performance of these
products. Evaluating the performance of these end-joints require specific tests.
The testing regimen, which may consist of one or more of the test methods specified in this
standard, is dependent on the type of product, the stage in the manufacturing of the product or
sub-components when the testing is to be performed, and the objective of the evaluation. Appendix
X1 – Appendix X7 provide an overview of considerations for developing a testing regimen.
1. Scope 2. Referenced Documents
2
2.1 ASTM Standards:
1.1 This standard provides test methods for evaluating the
D9 Terminology Relating to Wood and Wood-Based Prod-
structural capacity and integrity of end-joints in structural
ucts
wood products.
D198 Test Methods of Static Tests of Lumber in Structural
1.2 End-joints are manufactured by adhesive bonding of
Sizes
machined, mated surfaces at the ends of two pieces of lumber
D1101 Test Methods for Integrity of Adhesive Joints in
to form a joint. Typical end-joint configurations include finger
Structural Laminated Wood Products for Exterior Use
joints and scarf joints. The combination of one or more
D1151 Practice for Effect of Moisture and Temperature on
end-joints and the adjoining sections of the structural wood
Adhesive Bonds
product within the assembly is considered to be the test
D1183 Practices for Resistance of Adhesives to Cyclic
specimen.
Laboratory Aging Conditions
D2559 Specification for Adhesives for Bonded Structural
1.3 Off-line test methods include: (1) Axial Tension, (2)
Wood Products for Use Under Exterior Exposure Condi-
Bending, and (3) Cyclic Delamination.
tions
1.4 In-line test methods include: (1) Tension Proofload and
D2915 Practice for Sampling and Data-Analysis for Struc-
(2) Bending Proofload.
tural Wood and Wood-Based Products
D3434 Test Method for Multiple-Cycle Accelerated Aging
1.5 The values stated in inch-pound units are to be regarded
Test (Automatic Boil Test) for Exterior Wet Use Wood
as standard. The values given in parentheses are mathematical
Adhesives
conversions to SI units that are provided for information only
D4442 Test Methods for Direct Moisture Content Measure-
and are not considered standard.
ment of Wood and Wood-Based Materials
1.6 This standard does not purport to address all of the
D5456 Specification for Evaluation of Structural Composite
safety concerns, if any, associated with its use. It is the
Lumber Products
responsibility of the user of this standard to establish appro-
D4688 Test Method for Evaluating Structural Adhesives for
priate safety and health practices and determine the applica-
Finger Jointing Lumber
bility of regulatory limitations prior to use.
D4761 Test Methods for Mechanical Properties of Lumber
and Wood-Base Structural Material
D7247 Test Method for Evaluating the Shear Strength of
1
These test methods are under the jurisdiction of ASTM Committee D07 on
Wood and are the direct responsibility of Subcommittee D07.01 on Fundamental
2
Test Methods and Properties. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Aug. 1, 2016. Published August 2016. Originally contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
approved in 2008. Last previous edition approved in 2012 as D7469 – 12. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/D7469-16. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D7469−16
Adhesive Bonds in Laminated Wood Products at Elevated 3.2.8 in-line test—a test that is carried out on all production
Temperatures from a continuous manufacturing process.
D7438 Practice for Field Calibration and Application of
3.2.9 joint misalignment—non-zero slope between the lon-
Hand-Held Moisture Meters
gitudinal axes of two adjoining pieces in the direction of depth
E4 Practices for Force Verification of Testing Machines
or thickness, or both.
E6 Terminology Relating to Methods of Mechanical Testing
3.2.10 joint offset—distance between joint profile surfaces
E177 Practice for Use of the Terms P
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D7469 − 12 D7469 − 16
Standard Test Methods for
1
End-Joints in Structural Wood Products
This standard is issued under the fixed designation D7469; 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.
INTRODUCTION
Adhesive bonded end-joints are used in structural glued wood products. The bond performance of
these end-joints is only one of several parameters that influence the in-service performance of these
products. Evaluating the performance of these end-joints require specific tests.
The testing regimen, which may consist of one or more of the test methods specified in this
standard, is dependent on the type of product, the stage in the manufacturing of the product or
sub-components when the testing is to be performed, and the objective of the evaluation. Appendix
X1 – Appendix X7 provide an overview of considerations for developing a testing regimen.
1. Scope
1.1 This standard provides test methods for evaluating the structural capacity and integrity of end-joints in structural wood
products.
1.2 End-joints are manufactured by adhesive bonding of machined, mated surfaces at the ends of two pieces of lumber to form
a joint. Typical end-joint configurations include finger joints and scarf joints. The combination of one or more end-joints and the
adjoining sections of the structural wood product within the assembly is considered to be the test specimen.
1.3 Off-line test methods include: (1) Axial Tension, (2) Bending, and (3) Cyclic Delamination.
1.4 In-line test methods include: (1) Tension Proofload and (2) Bending Proofload.
1.5 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.
1.6 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.
2. Referenced Documents
2
2.1 ASTM Standards:
D9 Terminology Relating to Wood and Wood-Based Products
D198 Test Methods of Static Tests of Lumber in Structural Sizes
D1101 Test Methods for Integrity of Adhesive Joints in Structural Laminated Wood Products for Exterior Use
D1151 Practice for Effect of Moisture and Temperature on Adhesive Bonds
D1183 Practices for Resistance of Adhesives to Cyclic Laboratory Aging Conditions
D2559 Specification for Adhesives for Bonded Structural Wood Products for Use Under Exterior Exposure Conditions
D2915 Practice for Sampling and Data-Analysis for Structural Wood and Wood-Based Products
D3434 Test Method for Multiple-Cycle Accelerated Aging Test (Automatic Boil Test) for Exterior Wet Use Wood Adhesives
D4442 Test Methods for Direct Moisture Content Measurement of Wood and Wood-Based Materials
D4444 Test Method for Laboratory Standardization and Calibration of Hand-Held Moisture Meters
D5456 Specification for Evaluation of Structural Composite Lumber Products
1
These test methods are under the jurisdiction of ASTM Committee D07 on Wood and are the direct responsibility of Subcommittee D07.01 on Fundamental Test Methods
and Properties.
Current edition approved Oct. 1, 2012Aug. 1, 2016. Published October 2012August 2016. Originally approved in 2008. Last previous edition approved in 20092012 as
D7469 – 10.D7469 – 12. DOI: 10.1520/D7469-12.10.1520/D7469-16.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D7469 − 16
D4688 Test Method for Evaluating Structural Adhesives for Finger Jointing Lumber
D4761 Test Methods for Mechanical Properties of Lumber and Wood-Base Structural Material
D7247 Test Method for Evaluating the Shear Strength of Adhesive Bonds in Laminated Wood Products at Elevated
Temperatures
D7438 Practice for Field Calibration and Application of Hand-Held Moisture Meters
E4 Practices for Force Ve
...