PERBANDINGAN KARAKTERISTIK PAPAN SEMEN DARI BATANG DAN CABANG KAYU ASAL HUTAN RAKYAT
Abstract: Optimum utilization
of raw materials is very important to overcome the limited raw materials
supply. The objective of this study was to analyze the physical and mechanical
properties of cement board made of stem and branch of tree. Materials used in
this study were three wood species from community forest, namely; sengon
(Paraserianthes falcataria), candlenut (Aleurites moluccana), and gmelina
(Gmelina arborea). The raw materials taken from stem and branch of tree were
converted into particle using hammer mill. Composition of particle, water, and
cement weight based were 1 : 1,25 : 2,5 for produce cement board, while density
target of the boards were 0.85 g cm-3. To improve the board quality, 2.5 %
CaCl2 based on cement weight was added. Mixed meterials then cold pressed
during 24 hours and then conditioned for 1 month before tested. The research
resuts are as follows: 1) Dimensional stability of cement board made from stem
were superior compared to cement board made from branch of tree, 2) The MOR and
Internal Bond of cement board have no clear different pattern between stem and
branch of tree, 3) The MOE of cement board made from branch were higher
compared to cement board made from stem of the three wood species.
Penulis: Suhasman
Kode Jurnal: jpkehutanandd120068