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Publications O112.10-08 (R2013)

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O112.10-08 (R2013) - Evaluation of Adhesives for Structural Wood Products (Limited Moisture Exposure)

Publication Year:

  • 2008

Total Pages:

60

Reaffirmed Year:

  • 2013

Publisher:

  • CSA

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Intended Use

CSA O112.10 specifies requirements for evaluating adhesives used to bond solid wood materials in structural wood products designed for exterior applications. It has been developed for untreated wood only, and the responsibility of the user to decide whether they wish to apply its requirements to treated wood. In addition, CSA O112.9 does not apply to adhesives intended for below-ground, ground-contact, or marine service applications.

This Standard was developed to complement CSA O112.9, which covers the evaluation of structural wood adhesives for exterior exposure. CSA O112.10 covers adhesives used in conditions of limited moisture exposure, and recognizes new levels of adhesive performance under additional service conditions to those covered in CSA O112.9. Although structural bond lines in wood are usually evaluated for use under wet service, this Standard is targeted at adhesives for use in wood products restricted to dry service conditions.

Unlike the other Standards in the CSA O112 Series, which rely on CSA O112.0 for their test procedures, this Standard is not restricted to a specific class of adhesives, and its test procedures are self-contained. It is also one of the few Standards that evaluate the performance of adhesives under thermal conditions
corresponding to those that would be encountered during a fire by a structural wood product used in a fire-protected wood assembly.

Preface

This is the first edition of CSA O112.10, Evaluation of adhesives for structural wood products (limited moisture exposure).

1. Scope

1.1 This Standard specifies requirements for evaluating adhesives used to bond solid wood materials in structural wood products intended for limited moisture exposure applications. Note: See Annex D for additional information on limited exposure and other moisture exposure categories for structural wood adhesives.

1.2 This Standard specifies requirements for evaluating the resistance of adhesives to (a) shear caused by compression loading, under both dry and re-dry conditions; (b) delamination during accelerated exposure to wetting and drying; and (c) deformation under static shear loading during exposure to heat or high humidity.

1.3 This Standard is not intended for assessment of the effects of chemical treatments of wood on adhesive performance.

1.4 In CSA Standards, "shall" is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; "should" is used to express a recommendation or that which is advised but not required; "may" is used to express an option or that which is permissible within the limits of the standard; and "can" is used to express possibility or capability. Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material. Notes to tables and figures are considered part of the table or figure and may be written as requirements. Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.

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