PENGARUH PENGKARATAN LOGAM TERHADAP PELAPUKAN EMPAT JENIS KAYU ASAL SUKABUMI
ABSTRACT: The research was
conducted on four wood species with small of diameter, originated from
Sukabumi, i.e. huru gading (Litsea odorifera Val.), sampora (Colona javanica
Burr.), kisampang (Evodia aromatica BL.) and nyatuh (Pouteria duclitan Bachni).
The resistance properties of those four wood species after being metal-screwed
against seven wood-destroying fungi were evaluated using modified DIN 52176
standard (Martawijaya, 1975). Results showed that decaying rates (weight
losses) of the screwed wood were generaly greater than those of control
(unscrewed wood). The highest weight loss was encountered on unscrewed
kisampang wood exposed to Pycnoporus sanguineus HHB-324 (49.33%), while the
lowest loss was found on unscrewed huru gading wood exposed to Dacryopinax
spathularia (0.69%). Three of four wood species tested (i.e. sampora, kisampang
and nyatuh) both being screwed and unscrewed were categorized as not resistant
(class IV), whereas screwed huru gading wood was moderately resistant (class
III) and the unscrewed one was resistant (class II). Based on corrosion, the
highest weight loss of screw was obtained on kisampang wood tested by C.
globosum (11.33%). However, the lowest screw weight loss was on huru gading
tested by Polyporus sp. (1.95%). Among the fungi, the most severe attacks on
wood was performed by P. sanguineus HHB-324. Based on ability to corrode
wood-associated screw, there were no significant different among five of the
seven fungi, whereas Polyporus sp. and
P. sanguineus HHB-324 were performed lower ability.
Keywords: Resistance properties, wood destroying fungi,
metal screw, weight loss
Penulis: DJARWANTO, Sihati
SUPRAPTI
Kode Jurnal: jpkehutanandd080037
