Banner for LabNotes
From Lab Notes
Contact Information
Forest Products Laboratory
One Gifford Pinchot Drive
Madison, WI 53726-2398
Phone: (608) 231-9200
Fax: (608) 231-9592


You are here: FPL Home  / Information Products & Services  / Publications

Requested Product

Title: Accelerated aging of preservative-treated structural plywood

Source: Research Paper, FPL–RP–691. Madison, WI: U.S. Department of Agriculture, Forest Service, Forest Products Laboratory. 17 p.

Author(s)Senalik, C. Adam; Ross, Robert J.; Zelinka, Samuel L.; Lebow, Stan T.; Cai, Zhiyong

Publication Year: 2017  View PDF »

Category: Research Papers
Associated Research Project(s):   FPL-4706-2B   FPL-4714-2B   FPL-4716-1A   FPL-4723-3A

Abstract: In this study, the changes in physical properties and preservative retention of high-grade plywood when subjected to artificial aging processes were examined. The plywood was 15/32-in.-thick panels manufactured from southern yellow pine A and C grades of veneer. The artificial aging processes consisted of three primary mechanisms of degradation: thermal degradation, hydrolysis, and swelling and shrinking stresses. Three aging processes of various severity were used. The least severe was cycled changes in ambient temperature and humidity. The second most severe was cycles of submersion and air-drying. The most severe was cycles of soaking first under a vacuum then under high pressure to elevate the moisture content, followed by oven-drying. Additional parameters explored included the effects of continuous load versus no load during the aging processes, and the effects of salt water versus fresh water on the high-pressure soaking. After artificial aging, the plywood was tested in flexure and tensile shear. The changes in the plywood physical properties and preservative levels with respect to the increasing number of artificial aging cycles were recorded and analyzed.

Keywords: Artificial aging; plywood; flexural strength; tensile–shear; preservative retention; CCA; moisture cycling; temperature cycling

Publication Review Process: Informally Refereed (Peer-Reviewed)

File size: 1,024 kb(s)

Date posted: 09/05/2017

This publication is also viewable on Treesearch:  view
RITS Product ID: 86049
Current FPL Scientists associated with this product (listed alphabetically)
Cai, Zhiyong
Supervisory Research Materials Engineer
Lebow, Stan T.
Research Forest Products Technologist
Ross, Robert J.
Supervisory Research Gen. Engineer
Senalik, Christopher
Research General Engineer
Zelinka, Samuel L.
Materials Research Engineer

Additional items that might interest you
View the video celebrating FPL's 100 years of public service in 2010, from the producers of the Greatest Good....view

Research Highlights from FPL....view

Termite Eradication: A search for the Holy Grail.... view

Moisture Management in Residential Construction Series videos...view

Wood Floor Systems in Residential Construction Series videos....view
- FPL's Mission and Strategic Plan -

FPL's mission is to identify and conduct innovative wood and fiber utilization research that contributes to conservation and productivity of the forest resource, thereby sustaining forests, the economy, and quality of life. ... ..more »

- FPL Research Emphasis Areas -
Advanced Composites

As an integral part of the FPL mission, we improve the long-term sustainability of our Nation's forests by creating valuable composite products from biobased materials ... ..more »

Advanced Structures

The FPL has been in the forefront of wood-frame housing research since 1910 and has long been recognized as a world leader in such housing-related areas as engineered wood ... ..more »

Forest Biorefinery

We all know the compelling reasons that the United States needs to reduce its dependence on fossil fuels. Historically, the greatest increases in energy demand have been for transportation fuels ... ..more »


A leader in wood products research for over a century, the FPL is positioning itself to become the lead Federal research facility for the application of nanotechnology in forest products ... more »

Woody Biomass Utilization

Forests in the United States contain a substantial amount of small-diameter, overstocked, and underutilized material.FPL research projects are exploring the potential of the small-diameter ... ..more »