ASTM D4680-98 - 10.5.1998
 
1. Scope

1.1 This test method covers the determination of time-dependent properties of structural adhesives in wood-to-wood bonds when specimens are subjected to shearing stresses at various levels of static load, constant temperature, and relative humidity. Apparatus and procedures are provided for direct measurement of time-dependent shear deformation (creep) and time to failure of adhesive bonds under static load. Guidelines for selecting test conditions, methods for calculating creep rate, creep strain, creep modulus, and extrapolation of time to failure, are given along with methods of presenting these data.

1.2 This standard does not purport to address all of the safety problems, 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

D143-25

Standard Test Methods for Small Clear Specimens of Timber

D2016-74(1983)

Methods of Test for Moisture Content of Wood (Withdrawn 1987)

D907-15(2023)

Standard Terminology of Adhesives

D905-08(2021)

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

Compression-Shear Creep Test Apparatus Available from ASTM International Headquarters. Order Adjunct No. . Original adjunct produced in 1987.