Vol.06. Nos.1 - 2 (2007) pp.33-39

Durability assessment of chemically treated Gigantochloa scortechinii in unsterile soil laboratory burial tests

Authors:Razak, W; Tamizi, M; Othman, S; Hashim, W.S

Abstract:Culms of Gigantochloa scortechinii belonging to two age groups, 2 and 4 years, were chemically treated with ammoniacal-copper-quaternary (ACQ), borax-boric acid (BBA) and copper-chrome-arcenate (CCA) at L 2,4 and 8 per cent solution strength by soaking, vacuum impregnation and high pressure sap-displacement processes. Unsterile soil laboratory burial tests were then conducted on 2-and 4-year-old bamboo blocks. At the end of the testing period (8 weeks), the 2-year-old culms showed higher weight loss than the 4-year-old culms to attack of decay fungi. Among the treatments, the vacuum pressure treated blocks showed lower weight loss against decay fungi. The 4 per cent preservative solution strength was found to be sufficient in controlling the decay fungi.

Keywords:borax; boric acid; copper chrome arsenates; decay fungi; quate

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