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Search results for , issue " Vol 13, No 7 (1995): Jurnal Penelitian Hasil Hutan" : 1 Documents clear
KEAWETAN KAYU TUSAM (Pinus merkusii Jungh. et de Vr.) DAN MANGIUM (Acacia mangium Willd.) SETELAH FURFURILASI Balfas, Jamal; Sumarni, Ginuk
Jurnal Penelitian Hasil Hutan Vol 13, No 7 (1995): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1541.841 KB) | DOI: 10.20886/jphh.1995.13.7.259-265

Abstract

Two regrowth wood species, i.e. tusam (Pinus merkusii Jungh. et de Vr.) and mangium (Acacia mangium Wild.) were used in this study. Specimens measuring 25 mm x 25 mm x 50 mm and 5 mm x 25 mm x 25 mm were prepared for testing against dry-wood termite (Cryptotermes) and subteranean termite (Coptotermes) respectively. All specimens were air-dried  to approxi mately 16-18%  moisture content. One group of the specimens was further  oven - dried to reach moisture  content of  6-8%.  Furfurylation  was carried out by soaking  wood specimens for 24 hours  in a 98% fuifuryl  alcohol  solution  containing  0.35%  (v/v) of  ZnCl2  as catalyst. Furfurylated specimens were then cured at  l000C  for 48 hours.  Control and treated specimens were exposed to dry-wood and subteranean termites for 12 and 4 weeks respectively.Treated specimens revealed a weight gains of  10 to 40 % depending on size of specimens and  wood species. Speciesmens usd for testing drywood termites gained less weight than those of  subteranean termites. Tusam  specimens  markedly  showed  a  higher  weight  gain  than mangium.  Furfurylation using method 1 resulted in comparable weight gain to that of method 2. Control specimens of tusam an mangium are both encountered susceptible to dry-wood and subteranean  termite  attacts.  Tusam  had  less initial durability  against  Coptotermes  than mangium, but the wood species had a similar durability against Cryptotermess.  The modified wood with furfuryl alcohol abviously possessed an improved durability  upon the two termites. Tusam specimens gained more durability improvement than mangium.

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