BANGLADESH JOURNAL OF FOREST SCIENCE
A Half-yearly Peer Reviewed Journal of Bangladesh Forest Research Institute
A Half-yearly Peer Reviewed Journal of Bangladesh Forest Research Institute
The experiment was undertaken to investigate the retention of 10% Chromated-Copper-Boron (CCB) solution (2:2:1) in Kala-koroi (Albizia lebbeck) (L.) Benth. wood applying soaking as well as diffusion method. The assessments were applied for 5, 7, 9 and 11 days for both the method. Retention was recorded 1.96 kg/m3,11.78 kg/m3,12.92 kg/m3and 13.61 kg/m3 iiij4. lebbeck wood where soaking method applied. Moreover, retention was found 5.22 kg/m3, 6.43 kg/m3, 7.32 kg/m3 and 12.36 kg/m3 in A lebbeck wood when diffusion method applied. In case of both methods the highest retention was recorded 13.61 kg/m3 and 12.36 kg/m3 for 11 days. Considering the Standard of Bangladesh Standards and Testing Institution (BSTI), i.e., 13.61 kg/m3 and 12.36 kg/m3 retention can meet the suitability of the study.
The experiment was undertaken to investigate the retention of clnomated-copper-boron (CCB) preservatives in Pitali (Trewia nudiflora L.) wood applying soaking as well as diffusion method. The assessments were applied for 5, 7, 9 and 11 days for both the method. The retention of the preservatives were recorded 12.29 kg/m3, 14.97 kg/m3, 15.11 kg/m3 and 15.72 kg/m3 in Pitali wood where soaking method applied. Moreover, retention was found 11.43 kg/m3, 23.49 kg/m3, 24.14 kg/m3 and 25.38 kg/m3 in Pitali when diffusion method applied. In case of both the method, highest retention was recorded 15.72 kg/m3 and 25.38 kg/m3 in pitali wood after 11 days. Considering the Standard of Bangladesh Standards and Testing Institution (BSTI), i.e., 15.72 kg/m3 and 25.38 kg/m3 in Pitali can meet the suitability of the study. According to BDS code, the required retention of CCB is 8-16 kg/m3.
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