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Forest Products Laboratory
One Gifford Pinchot Drive
Madison, WI 53726-2398
Phone: (608) 231-9200
Fax: (608) 231-9592


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Title: Nondestructive Evaluation of Biodegraded Oriented Strandboard: Laboratory Results

Source: Proc 2nd Annual Conf on Durability and Disaster Mitigation in Wood-Frame Housing

Author(s)Yang, Nelson, Illman, Ross

Publication Year: 2001  View PDF »

Category: Journal Articles

Abstract: The durability of oriented strandboard (OSB) against biological degradation has not been clearly determined nor has an in-place assessment method been developed for OSB. The objectives of this research were to investigate the durability of OSB when exposed to wood decay fungi and to develop an in-place method for evaluating biological decay of this composite material. Southern yellow pine OSB specimens were exposed to 14 brown-rot and 8 white-rot decay fungi. Results of our initial screening revealed that the brown-rot fungus Gloeophyllum trubeum (Mad-617) degraded OSB to a greater extent than solid southern yellow pine wood. Stress wave nondestructive evaluation (NDE) and strength loss procedures were used to evaluate decay of OSB stakes by G. trubeum. Specimens showed a decrease in NDE stress wave and centerpoint flexure (modulus of rupture) values before they exhibited weight loss.

File size: 336 kb(s)

Date posted: 04/05/2010
Current FPL Scientists associated with this product (listed alphabetically)
Illman, Barbara L.
Supervisory Plant Pathologist
Ross, Robert J.
Supervisory Research Gen. Engineer

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