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( Tomy Listyanto ),( Hanan Purana Putra ),( Ganis Lukmandaru ),( Joko Sulistyo ),( Sugi Purwanto ),( Nam Hun Kim ) 한국목재공학회 2018 한국목재공학회 학술발표논문집 Vol.2018 No.1
The aim was to investigate the effect of girdling duration on durability and mechanical properties of 12 years old fast growing teak. Samples were obtained from 12- years old fast growing teak. Four girdling durations, which were 0 month, 3 months, 9 months and 12 months, were applied before harvesting Samples from heartwood and sapwood were tested against dry wood termites for four weeks. The observed parameters were mortality and mass losses. Modulus of Rupture (MoR) and Modulus of elasticity (MoE) were measured to examine the mechanical properties. The data were then tested using variance analysis with significantly level of 5 % and continued by Honestly Significant Difference Tukey to find the difference. The result showed that the durability class against dry wood termites of heartwood among girdling duration of 0 month, 3 months, 9 months and 12 months were class V, IV, II and II, respectively, while the sapwood one were class V, V, V and IV, respectively. The value of MoR and MoE increased slightly as the duration of girdling increased.