ASTM-D2559 2012

$44.96

D2559-12a Standard Specification for Adhesives for Bonded Structural Wood Products for Use Under Exterior Exposure Conditions

Published By	Publication Date	Number of Pages
ASTM	2012	15

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Categories: 79.060.10 - Plywood, ASTM

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Description

1.1 This specification covers adhesives suitable for the bonding of wood, including treated wood, into structural wood products for general construction or other uses where a high-strength, durable adhesive bond is required.

1.2 This specification includes test methods that may be referenced by specific product standards for the evaluation and approval of structural wood adhesives. Methods are included to evaluate adhesives intended for use in exterior exposure.

Note 1Consult the Commentary in Appendix X1 regarding the intent and limitations of each test method contained in this specification.

1.3 Description of Bondline Performance It is recognized that structural wood adhesives are used in various applications and levels of severity in terms of moisture content, loading, cyclic and seasonal weather conditions, heat exposure and other use conditions. It is the intent of this standard to determine the suitability of an adhesive for use under various levels of severity and conditions with specific and appropriate test methods and requirements.

Note 2This specification does not contain specific tests outlined for different chemical types of adhesives.

1.4 Strength and durability requirements of the adhesive in Service Class A are based on the performance of the adhesive in laminated wood as measured by:

1.4.1 Resistance to shear by compression loading after conditioning to the target moisture content indicated in 14.2.3 and meeting requirements in 14.4.

1.4.2 Resistance to delamination during exposure to three cycles of vacuum pressure wetting followed by drying at elevated temperature as indicated in 15.3 and meeting requirements in 15.4.

1.4.3 Resistance to creep under static load by subjecting test specimens to a specified shear stress and exposing one set of test specimens to an environment of elevated temperature and ambient humidity and another set to an environment of high humidity and meeting requirements set forth in 16.3.

1.4.4 For applications involving chemical treatment, the adhesive shall be evaluated using representative samples of treated wood.

Note 3When using chemically treated wood, compatibility between the treatment, adhesive, and wood is to be considered and agreed upon between the chemical manufacture and the user.

Note 4Additional durability testing may also be required as specified by individual product standards. Consult the Commentary in Appendix X1 for additional information and guidance as to the type of durability testing that may be appropriate to supplement this specification when characterizing the adhesive for suitability with specific wood products.

1.5 The evaluation of adhesives for use in ground contact and marine exposures are beyond the scope of this specification.

1.6 The evaluation of binder adhesives is beyond the scope of this specification.

1.7 The values stated in SI units are to be regarded as the standard. The values in parentheses are for information only.

1.8 The text of this specification references notes, footnotes and a commentary which provide explanatory material. These notes, footnotes and commentary (excluding those in tables and figures) shall not be considered as requirements of the specification.

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 and health practices and determine the applicability of regulatory limitations prior to use.

PDF Catalog

PDF Pages	PDF Title
1	Scope
2	Referenced Documents Terminology Significance and Use
3	Classification Ordering Information Fillers and Extenders Chemical Requirements Physical Requirements Selection and Preparation of Wood for Testing of Adhesives Preparation of Laminated Wood Test Members
4	Number of Tests Preparation of Test Specimens TABLE 1
5	Resistance to Shear by Compression Loading FIG. 1
6	Resistance to Delamination During Accelerated Exposure FIG. 2
7	Resistance to Creep Under Static Loading TABLE 2
8	Report Precision and Bias Keywords TABLE 3 TABLE 4
9	X1. COMMENTARY X1.1 Introduction to the Standard X1.2 Application of the Standard Specification X1.3 Scope
10	X1.4 Treated Wood X1.5 Considerations of Preservative Treated Wood X1.6 Additional Durability Testing X1.7 Use of Binder Adhesives X1.8 Terminology X1.9 Significance and Use X1.10 ASTM Standards 2
11	X1.11 Fillers and Extenders X1.12 Chemical Requirements X1.13 Physical Requirements General Considerations X1.14 Selection and Preparation of Wood for Testing of Adhesives FIG. X1.1
12	X1.15 Wood Moisture Content X1.16 Wood Surfacing X1.17 Preparation of Structural Wood Test Members General Considerations X1.18 Number of Tests
13	X1.19 Resistance to Shear by Compression Loading General Considerations X1.20 Resistance to Delamination During Accelerated Exposure General Considerations X1.21 Resistance to Creep Under Static Loading General Considerations

Additional information

Standard Title	D2559-12a Standard Specification for Adhesives for Bonded Structural Wood Products for Use Under Exterior Exposure Conditions
Published Code	ASTM
Publication Date	2012
Pages Count	15
ICS Codes	79.060.10 - Plywood

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