Effects of Two Methods of Accelerated Aging on Strength and Stiffness of Composite Structural Lumber

COM-PLY truss lumber produced in a pilot plant was tested for durability by using two different accelerated aging procedures: the ASTM D 1037 6-cycle accelerated aging test and 6 cycles of the French standard MF B 51 263 more commonly known as V 313. The objective was to compare strength and stiffness losses due to the two test procedures. Accelerated aging strength loss was about 30 percent and stiffness loss about 20 percent for both procedures. There was no significant difference in the results of the D 1037 and V 313 tests.

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