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ASTM D905-98

(Test Method)

Standard Test Method for Strength Properties of Adhesive Bonds in Shear by Compression Loading

Standard Test Method for Strength Properties of Adhesive Bonds in Shear by Compression Loading

SCOPE
1.1 This test method covers the determination of the comparative shear strengths of adhesive bonds used for bonding wood and other similar materials, when tested on a standard specimen under specified conditions of preparation, conditioning, and loading in compression. This test method is intended primarily as an evaluation of adhesives for wood.  
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are provided for information purposes 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
09-Apr-1998
ICS
83.180 - Adhesives
Technical Committee
D14 - Adhesives
Drafting Committee
D14.30 - Wood Adhesives
Current Stage
Ref Project

Relations

Replaced By
ASTM D905-03 - Standard Test Method for Strength Properties of Adhesive Bonds in Shear by Compression Loading
Effective Date
01-Oct-2003

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ASTM D905-98 - Standard Test Method for Strength Properties of Adhesive Bonds in Shear by Compression LoadingASTM D905-98 - Standard Test Method for Strength Properties of Adhesive Bonds in Shear by Compression Loading
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ASTM D905-98 - Standard Test Method for Strength Properties of Adhesive Bonds in Shear by Compression Loading
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D 905 – 98
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Test Method for
Strength Properties of Adhesive Bonds in Shear by
1
Compression Loading
This standard is issued under the fixed designation D 905; 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.
This standard has been approved for use by agencies of the Department of Defense.
INTRODUCTION
The accuracy of the results of strength tests of adhesive bonds will depend on the conditions under
which the bonding process is carried out. Unless otherwise agreed upon by the manufacturer and the
purchaser, the bonding conditions shall be prescribed by the manufacturer of the adhesive. In order to
ensure that complete information is available to the individual conducting the tests, the manufacturer
of the adhesive shall furnish numerical values and other specific information for each of the following
variables:
(1) The moisture content of the wood at the time of gluing.
(2) Complete mixing directions for the adhesive.
(3) Conditions for applications of the adhesive including the rate of spread or thickness of film,
number of coats to be applied, whether to be applied to one or both surfaces, and the conditions of
drying where more than one coat is required.
(4) Assembly conditions before application of pressure, including the room temperature, length of
time, and whether open or closed assembly is to be used.
(5) Curing conditions, including the amount of pressure to be applied, the length of time under
pressure and the temperature of assembly when under pressure. It should be stated whether this
temperature is that of the glue line, or of the atmosphere at which the assembly is to be maintained.
(6) Conditioning procedure before testing, unless a standard procedure is specified, including the
length of time, temperature, and relative humidity.
A range may be prescribed for any variable by the manufacturer of the adhesive if it can be assumed
by the test operator that any arbitrarily chosen value within such a range or any combination of such
values for several variables will be acceptable to both the manufacturer and the purchaser of the
adhesive.
1. Scope 1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
1.1 This test method covers the determination of the com-
responsibility of the user of this standard to establish appro-
parative shear strengths of adhesive bonds used for bonding
priate safety and health practices and determine the applica-
wood and other similar materials, when tested on a standard
bility of regulatory limitations prior to use.
specimen under specified conditions of preparation, condition-
ing, and loading in compression. This test method is intended
2. Referenced Documents
primarily as an evaluation of adhesives for wood.
2.1 ASTM Standards:
1.2 The values stated in SI units are to be regarded as the
D 143 Methods of Testing Small Clear Specimens of Tim-
standard. The values given in parentheses are provided for
2
ber
information purposes only.
3
D 907 Terminology of Adhesives
1
This test method is under the jurisdiction of ASTM Committee D-14 on
Adhesives and is the direct responsibility of Subcommittee D14.30 on Wood
Adhesives.
2
Current edition approved April 10, 1998. Published February 1999. Originally Annual Book of ASTM Standards, Vol 04.10.
3
published as D 905 – 47 T. Last previous edition D 905 – 94. Annual Book of ASTM Standards, Vol 15.06.
1

---------------------- Page: 1 ----------------------
NOTICE:¬This¬standard¬has¬either¬been¬superceded¬and¬replaced¬by¬a¬new¬version¬or¬discontinued.¬
Contact¬ASTM¬International¬(www.astm.org)¬for¬the¬latest¬information.¬
D 905
3. Terminology adhesives may be different in different types of joints. Strength
values obtained by this test method are not suitable as design
3.1 Definitions—Many terms in this test method are defined
shear strengths values without adjustment by certain engineer-
in Terminology D 907.
ing design factors.
4. Significance and Use
5. Apparatus
4.1 It cannot be assumed that this test method measures the
5.1 The testing machine shall have a capacity of not less
true shear strength of the adhesive bond. Many factors interfere
than 6810 kg (15 000 lb) in compression and shall be fitted
or bias the measurement including the strength of the wood, the
with a shearing tool containing a self-aligning seat to ensure
specimen, the shear tool designs themselves, and the rate of
...

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This specification provides the means to measure and evaluate the performance of adhesives for structural or semistructural bonding of wood-to-wood in manufactured homes. Wood as used in this specification includes lumber, plywood, particleboard, gypsum board, and all materials having woodbased surfaces at the bondline. The adhesives can be classified according to resistance to deformation: Group A or structural, and Group B or semistructural. Also, the adhesives may be designated into three types, according to their recommended use based on their resistance to water and water vapor: Type 1 for interior and exterior use, Type 2 for weather-protected interior use, and Type 3 for interior use only. Different tests shall be performed in order to determine the following properties of adhesives: shear strength, gap-filling ability, total deformation resistance, moisture and temperature limitation during fabrication, high-temperature resistance, low-temperature resistance, moisture resistance, aging, oxidation resistance, and mold resistance.
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1.1.1 The performance of the adhesives is measured in the following tests:    
Number  
Test  
Section  
1  
Low Temperature  
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Dry Lumber  
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Type 2 Qualification  
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Resistance to Deformation, Creep  
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Type 1 Qualification  
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4.1 Creep data that are obtained over a relatively short period of time in this test method can provide a measure of an adhesive bond's ability to withstand static loading in shear over a relatively long period of time. Creep measurements are made over a range of expected service conditions, including level of stress, temperature, relative humidity, and duration of load. Creep rate, creep strain, and creep modulus are calculated at the various service conditions.  
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4.1 These test methods are designed to be used to determine the susceptibility of the adhesive film to biodegradation and whether the adhesive will carry into the bond line sufficient anti-fungal properties to prevent growth of fungi frequently present on the gluing equipment, on adherends, or in the adhesive as applied.  
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1.1 These test methods test the ability of adhesive films to inhibit or support the growth of selected fungal species growing on agar plates by providing means of testing the films on two agar substrates, one which promotes microbial growth, and one which does not.  
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Note 1: As an example, quaternary ammonium compounds are inactivated by agar.  
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This test method covers the determination of the comparative cleavage strength properties of metal-to-metal adhesive bonds. The testing machine shall be capable of maintaining the rate of loading and shall compose of fixed member, movable member, and grips. Test specimens shall consist of metal pieces glued together according to the prescribed dimensions indicated in this standard method. Recommended metal specimens are the following: brass, copper, aluminum, steel, and phosphor bronze. Bonding and conditioning of specimen shall be done according to the procedure specified by the manufacturer of the adhesive. Testing procedure shall be in accordance to the load rate limits specified in this standard method. Cleavage strength shall be expressed in pounds per inch and shall be reported in three significant figures in addition to the following information: adhesive identification, preparation method, adhesive layer thickness, conditioning procedure used, testing room condition, specimen number, and loading rate.
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SCOPE
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