Effects of End Plates on Reducing Checking of Pentachlorophenol-Treated Douglas-Fir Crossarms
The effect of end plates on reducing checking of pentachlorophenol-treated Douglas-fir crossarms was evaluated over 13 wet-dry cycles. Check development was variable over the first three to four cycles, and then steadily increased for both plated and nonplated ends of arms; however, both the number of checks and maximum width of the checks were significantly lower on plated ends. The results suggest that end plating reduces the potential for deep check development in crossarms that could lead to early failure.
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