Jurnal Ilmu dan Teknologi Kayu Tropis
Vol 6, No 1 (2008): Jurnal Ilmu dan Teknologi Kayu Tropis

Sifat Fisik dan Mekanik Batang Gewang (Corypha utan Lamk.) dari Nusa Tenggara Timur Physical and Mechanical Properties of Gewang (Corypha utan Lamk.) Stem from East Nusa Tenggara

Kurnia Wiji Prasetyo (Unknown)
Subyakto Subyakto (Unknown)
B. Paul Naiola (Unknown)



Article Info

Publish Date
19 Mar 2018

Abstract

Gewang (Corypha utan Lamk.) is an important palm grown wild in the savannah of East Nusa Tenggara, Indonesia. The genus Corypha, belong to Arecaceae or Palmae consist of about 8 species distributed from tropical Africa to India, tropical Asia, Indochina, Malaysia, and Quensland. Corypha grows in lowland of very dried climate and savannah. The local people have used this palm traditionally for many purposes to fulfill their daily needs. Trunks are used for producing starch for food, cattle food (putak), building material for housing, furniture and fence.Basic properties of stem from Gewang palm are identified according to the height and depth of samples in the stem. The properties identified are physical properties including density, water absorbtion and shrinkage on thickness and length direction; mechanical properties including modulus of elasticity (MOE), modulus of rupture (MOR) and maximum crushing strength pararel to grain.Almost all properties tested are affected significantly by the height and depth of samples in the Gewang stem, where the influence of depth stem factor is higher than the height stem factor. Gewang stem from the bottom part of the stem produces better properties than middle and top part, indicates by a higher density, lower water absorption and shrinkage values. Similarly, physical properties of the outer part Gewang stem is higher than those in the medium and center parts. The mechanical properties result shown same phenomena that the bottom part of Gewang stem produces better properties than middle and top part, indicates by a higher modulus of elasticity, modulus of rupture and maximum crushing strength pararel to grain values. Similarly, mechanical properties of the outer part Gewang stem is higher than those in the medium and center parts.

Copyrights © 2008






Journal Info

Abbrev

JITKT

Publisher

Subject

Agriculture, Biological Sciences & Forestry

Description

Jurnal ini mempublikasikan artikel asli baik penelitian dasar maupun terapan di bidang ilmu pengetahuan dan teknologi kayu, bahan berlignoselulosa bukan kayu, hasil hutan lainnya dan industri hasil ...