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Evaluation of Barrier Wrap Systems after 71 Months of Exposure
2013 - IRG/WP 13-40631
A 71 month study of the performance of booted samples in ground contact was conducted in AWPA hazard zone 4. Data indicated that excellent performance of wrapped systems, even over untreated wood, could be obtained. Instances of decay colonization or termite attack could all be attributed to some breaking of the integrity of the barrier system. Good performance for treatment below ground contact...
H M Barnes, M G Sanders, G B Lindsey, C McIntyre


Assaying Pentachlorophenol-treated Wood Using XRF
2007 - IRG/WP 07-20362
A study was conducted to evaluate the effect of oil type on the performance of test posts treated with oil-penta and exposed in DeQueen, AR for forty years in ground contact. The original assays for the poles were done by lime ignition, a practice used sparingly today in treating plants or by independent inspectors, in part due to the complicated analysis procedure and chances for error. XRF ins...
H M Barnes, C R McIntyre, D W Bullock , M H Freeman, G B Lindsey


Bending Properties of Southern Pine Treated with Micronized Preservative Systems
2008 - IRG/WP 08-40414
This study indicates that treatment of southern pine with micronized copper systems have no deleterious effect on the residual strength property values. No statistical differences between wood treated with micronized systems and water-treated controls were noted when means were compared using either Tukey’s test or S-N-K mean comparison tests. Using the more discriminating Least Squares anal...
H M Barnes, G B Lindsey, J Hill, M Pompeo, R Hodge


Performance of Creosote/Chlorothalonil Preservatives
2011 - IRG/WP 11-30580
The addition of chlorothalonil to P2 creosote was found to increase the durability of southern pine in a series of ground contact stake tests. At retentions lower than those specified in the AWPA Standards, performance was increased when the creosote was amended with chlorothalonil. This indicates that lower creosote retentions may be required for as good or better ground contact when the amende...
H M Barnes, M G Sanders, G B Lindsey, T L Amburgey