Vol.07. Nos.1 - 2 (2008) pp.109-118
Title:

Amelioration of durability of bamboo through copper-chromeboron by different treatment processes.

Authors:Sadhna Tripathi

Abstract:Bambusa balcooa, R bambos R nlllallS, DendrocalalllllS gigalltells and D. strictus were evaluated for natural durability through grave yard test and revealed that none of the species is durable in ground contact. Treatment with copper-ehrome-boron (CCB) at 4 per cent eoncentration and four methods of treatment i.e., Boucherie, VAC-FRI, Wick, and Diffusion were selected for the study. CCB treated D. gigalltells exhibited only 34.83 per cent destruction ofsamples, while 66 per cent of B. balcooa samples were destroyed in grave yard test. Among the bamboo species tested, B. balcooa with very good eulm thickness performed worst and D. gigallteus best in the field. Wick process imparted considerable protection to D. gigantells, D. strictus and B. l1utallS. Wick process performed best among the treatment methods applied and on the basis offield performance of bamboo, the methods are graded as Wick process >Diffusion >Boucherie >VAC-FRI >ControL Moisture content, treatment time and retention of preservative influenced performanee of treated bamboo in the field.

Keywords:application methods; boron; chemical treatment; chromium; copper; durability; moisture content; retenti

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