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Asian Journal of Applied Sciences
Year: 2014  |  Volume: 7  |  Issue: 1  |  Page No.: 38 - 44

Enhencement of Life Span of Mahogany (Swietenia macrophylla), Raintree (Albizia saman) and Akashmoni (Acacia auriculiformis) Wood Treating with CCB Preservative

Inun Naher, Atanu Kumar Das, Subir Kumar Biswas and Md. Nazrul Islam    

Abstract: This study summarizes results of a research aimed at assessing of preservative treatment of sapwood and heartwood of three important fast growing timber species of Bangladesh i.e., Swietenia macrophylla (mahogony), Albizia saman (raintree) and Acacia auriculiformis (akashmoni) with CCB by dipping method. Heartwood and sapwood of the three species treated with 8% concentration of Chromate-copper-boron (CCB) at 2:2:1 ratio using non-pressure dipping method for 72 h in the laboratory. The treated wood of these three species was inoculated with white-rot fungus (Ceriporiopsis subvermispora) to identify the effectiveness of CCB treatment. It was found that retention of CCB preservatives and penetration of boron was the highest for sapwood (7.29 kg m-3 and 98.63%) and heartwood (4.736 kg m-3 and 84.51%) of raintree among the three species. The weight loss percentage was the lowest for sapwood (0.62%) and heartwood (1.01%) of raintree among the three species. So, it was considered that heartwood and sapwood of raintree was provided best results.

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