Laboratory Evaluation of Natural Decay Resistance and Efficacy of CCA-Treated Rubberwood (Hevea brasiliensis Muel!. Arg.)

Jusoh, Ismail and Kamdem, D. Pascal (2001) Laboratory Evaluation of Natural Decay Resistance and Efficacy of CCA-Treated Rubberwood (Hevea brasiliensis Muel!. Arg.). Holzforschung 55 (2001) 250-254.

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Abstract

Information on the natural decay resistance and efficacy of CCA-treated rubberwood is important for the development rubberwood industry. The purpose of this study was to determine the natural decay resistance of rubberwood and the efficacy of CCA-pressure treatment in order to explore a new opportunity for this abundant raw material. Natural decay resistance and efficacy of CCA was estimated using soil-block test according to AWPA ElO-91. Cubes were exposed to six wood-decay fungi: two each from white, brown, and soft rot. The moisture content of test cubes exposed to /rpex lacteus and Trametes versicolor increased with weight loss increase, while that exposed to Gloeophyllum trabeum and Postia placenta decreased. After a 12-week incubation period the average weight loss by white rot and brown rot fungi was about 1.5 times higher than that of soft rot fungi. CCA retention of 4.1 kg/m3 reduced weight loss to between 8 % and 10 %, retention of 14.5 kg/m3 protected weight loss by all test fungi from exceeding2%.

Item Type: Article
Additional Information: Universiti Malaysia Sarawak, UNIMAS
Uncontrolled Keywords: Hevea brasiliensis, Natural decay resistance, Soil-block test, CCA, 2001, Universiti Malaysia Sarawak, UNIMAS, universiti, university, Borneo, Malaysia, Sarawak, Kuching, Samarahan, IPTA, education, undergraduate, research
Subjects: A General Works > AC Collections. Series. Collected works
Divisions: Academic Faculties, Institutes and Centres > Faculty of Resource Science and Technology
Faculties, Institutes, Centres > Faculty of Resource Science and Technology
Depositing User: Karen Kornalius
Date Deposited: 06 May 2014 03:18
Last Modified: 19 Jan 2022 01:55
URI: http://ir.unimas.my/id/eprint/2287

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