Performance of Treated Imported Timbers (ZiBOC, CCB and CCA) and their Natural Durability in Prototype Cooling Tower
DOI:
https://doi.org/10.36808/if/2018/v144i4/129435Keywords:
Cooling tower, CCA, CCB, Pinus roxburghii, Pinus radiata, Pseudotsuga menziesii, ZiBOC.Abstract
Cooling towers are heat dissipating units in many industries and a large volume of timber is being used in cooling towers in India. In the present study the wood specimens of Pinus roxburghii, Pinus radiata and Pseudotsuga menziesii were treated with conventional preservative viz; copper crome arsenate (CCA), copper crome boron (CCB) and newly developed environsafe preservative Copper zinc borate (ZiBOC) at 2, 4 and 6% concentration by full cell process and were tested in prototype cooling tower in laboratory. Specimens were removed after two years of experimentation and studied for dry salt retention and weight loss in prototype cooling tower. The results revealed that all three species are naturally nondurable; however, durability after treatment was significantly increased. Hence the present study suggests that all three test species had performed satisfactorily and performance of preservative was at par.References
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