Corrosion Rates of Fasteners in Treated Wood Exposed to 100% Relative Humidity
Publication: Journal of Materials in Civil Engineering
Volume 21, Issue 12
Abstract
In the past, gravimetric corrosion data for fasteners exposed to treated wood has been reported as a percent weight loss. Although percent weight loss is a valid measure of corrosion for comparing identical fasteners, it can distort the corrosion performance of fasteners with different geometries and densities. This report reevaluates a key report on the corrosiveness of wood treated with chromated copper arsenate (CCA) and ammoniacal copper arsenate (ACA) and converts the previous data into corrosion rates. In addition, similar experiments were run in wood treated with alkaline copper quaternary (ACQ). Comparison of the corrosion rates reveals ACQ treated wood is more corrosive than CCA treated wood for every metal. The corrosion rate of aluminum was found to be lower than both hot-dip galvanized steel and electroplated galvanized steel in ACQ, ACA, and CCA treated wood. In ACA and ACQ treated wood, the electroplated galvanized fastener had a lower corrosion rate than the hot-dip galvanized fastener.
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References
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Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 21 • Issue 12 • December 2009
Pages: 758 - 763
Copyright
© 2009 ASCE.
History
Received: May 1, 2007
Accepted: Jun 12, 2009
Published online: Nov 13, 2009
Published in print: Dec 2009
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