KARAKTERISTIK BALOK LAMINASI DARI KAYU MANGIUM (ACACIA MANGIUM WILLD)
ABSTRACT: Glued-laminated
(glulam) beams is one of engineered wood products used for structural
applications. The objective of this
research is to evaluate characteristics of glulam beams made from Acacia
mangium Willd. Laminations used were
2, 4, 6, 8 and 12 cm in widthnesses, 2 cm in thickness and 260 cm in length. Each lamination was graded using Machine
Stress Grading (namely by Panter or plank sorter) to determine the modulus of
elasticity (MOE) value. The glulam beams
was 6 cm x 12 cm in five types of cross-section which arranged by various
widths and those MOE of laminations.
Glulam beams were bonded by water based polymer isocyanate (WBPI) using
280 g/m2 double glue spread. The
research results showed that glulam beams made from A. mangium Willd. fulfilled the JAS 234:2003 standard as on
following properties: moisture content, MOE, MOR, shear strength and immersion
delamination test. However, performance
of glulam was unsatisfactory in wood failure ratio and boiling water soak
delamination test.
Keywords: Glulam beam, MOE, MOR, shear strength,
delamination
Penulis: Evalina HERAWATI,
Muh. YUSRAM MASSIJAYA, Naresworo NUGROHO
Kode Jurnal: jpkehutanandd080044
