Effect of Accelerated Fixation on Decay of CCA-Treated Wood

Hardwood (birch) and softwood (southern yellow pine) stakes were treated with chromated copper arsenate and fixed either at room temperature or by steaming. These stakes were subjected to testing in a fungus cellar which is an incubation chamber designed to simulate field conditions and produce accelerated soft rot attack in treated and untreated wood. Temperature and, hence, rate of fixation had no apparent effect on the performance of treated pine stakes, but treated hardwood stakes subjected to accelerated fixation at elevated temperatures performed poorly compared with stakes fixed at ambient temperatures.

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