ASTM-D5456 2009

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D5456-09 Standard Specification for Evaluation of Structural Composite Lumber Products

Published By	Publication Date	Number of Pages
ASTM	2009	21

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Categories: 79.060.01 - Wood-based panels in general, ASTM

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Description

1.1 This specification recognizes the complexity of structural glued products. Consequently, this specification covers both specific procedures and statements of intent that sampling and analysis must relate to the specific product.

1.2 This specification was developed in the light of currently manufactured products as defined in 3.2. Materials that do not conform to the definitions are beyond the scope of this specification. A brief discussion is found in Appendix X1.

1.3 Details of manufacturing procedures are beyond the scope of this specification.

Note 1There is some potential for manufacturing variables to affect the properties of members that are loaded for sustained periods of time. Users of this specification are advised to consider the commentary on this topic in Appendix X1.

1.4 This specification primarily considers end use in dry service conditions, such as with most protected framing members, where the average equilibrium moisture content for solid-sawn lumber is less than 16 %. The conditioning environment of 6.3 is considered representative of such uses.

1.5 The performance of structural composite lumber is affected by wood species, wood element size and shape, and adhesive and production parameters. Therefore, products produced by each individual manufacturer shall be evaluated to determine their product properties, regardless of the similarity in characteristics to products produced by other manufacturers. Where a manufacturer produces product in more than one facility, each production facility shall be evaluated independently. For additional production facilities, any revisions to the full qualification program in accordance with this specification shall be approved by the independent qualifying agency.

1.6 This specification is intended to provide manufacturers, regulatory agencies, and end users with a means to evaluate a composite lumber product intended for use as a structural material.

1.7 This specification covers initial qualification sampling, mechanical and physical tests, analysis, and design value assignments. Requirements for a quality-control program and cumulative evaluations are included to ensure maintenance of allowable design values for the product.

1.8 This specification, or parts thereof, shall be applicable to structural composite lumber portions of manufactured structural components.

1.9 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.

1.10 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.

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PDF Pages	PDF Title
1	Scope
2	Referenced Documents Terminology
3	Materials Mechanical Properties FIG. 1 TABLE 1
4	Qualification
5	Determination of Allowable Design Stresses
6	Independent Inspection
7	Manufacturing Standard Quality Assurance
8	Keywords A1. VOLUME EFFECT PARAMETER DETERMINATION A1.1 Scope A1.2 Flexure A1.3 Tension
9	A1.4 Exponents from Multiple-Size Tests A1.5 FIG. A1.1
10	A2. ESTABLISHING EQUIVALENT SAWN LUMBER SPECIES CONNECTION PROPERTIES FOR SCL A2.1 Scope A2.2 Sample Size A2.3 Test Specimen FIG. A1.2 TABLE A1.1
11	A2.4 Withdrawal Tests A2.5 Dowel Bearing Tests A2.6 Withdrawal Equivalence A2.7 Dowel Bearing Equivalence FIG. A2.1
12	A2.8 Presentation of Connection Properties A3. TEST PROCEDURE FOR DETERMINING HORIZONTAL SHEAR STRESS IN STRUCTURAL-SIZE MEMBERS OF SCL A3.1 Scope A3.2 Specimen Sampling and Preparation
13	A3.3 Test Procedure A3.4 Design Stress Determination FIG. A3.1 FIG. A3.2
14	A3.5 Report A4. TEST PROCEDURES FOR EVALUATING SCL DURABILITY AND CORE DENSITY A4.1 Scope A4.2 Adhesive Durability Tests (Six-Cycle Flatwise Bending)
15	A4.3 Product Durability Tests (Single-Cycle Edgewise Bending) A4.4 Lateral Edge Nail Durability Tests (24-h Water Soak Connection Tests) FIG. A4.1 FIG. A4.2
16	A4.5 Core Density Tests FIG. A4.3
17	X1. COMMENTARY ON LIMITATIONS OF APPLICABILITY AND POSSIBLE END-USE CONSIDERATIONS X1.1 Scope X1.2 Limitations to the Applicability of This Specification
18	X1.3 Design and Mechanical Property Concerns X1.4 Physical Properties and Standards
19	X2. EXAMPLE PROCEDURE TO DETERMINE SCL NAIL WITHDRAWAL AND DOWEL BEARING EQUIVALENT SPECIFIC GRAVITY VALUES X2.1 Scope X2.2 Determination of Withdrawal Equivalent Specific Gravity Values for Nails X2.3 Determination of Dowel Bearing Equivalent Specific Gravity Values for Nail Connections X2.4 Determination of Dowel Bearing Equivalent Specific Gravity Values for Bolted Connections X2.5 Determination of Equivalent Species Combination for Dowel-Type Fasteners TABLE X2.1 TABLE X2.2 TABLE X2.3
20	X3. LONGITUDINAL SHEAR STRENGTH ADJUSTMENT FACTOR FOR SCL BASED ON THE SHEAR BLOCK TEST METHOD X3.1 Introduction X3.2 Explanation TABLE X2.4 TABLE X2.5 TABLE X2.6
21	REFERENCES

Additional information

Standard Title	D5456-09 Standard Specification for Evaluation of Structural Composite Lumber Products
Published Code	ASTM
Publication Date	2009
Pages Count	21
ICS Codes	79.060.01 - Wood-based panels in general

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ASTM-D5456 2009

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