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Flexural Properties of Laminated Veneer Lumber Manufactured from Oil Palm Veneers

H'ng Paik San, Paridah Md. Tahir and Gan Cheng Wen

Pertanika Journal of Tropical Agricultural Science, Volume 30, Issue 1, February 2007

Keywords: Laminated veneer lumber, flexural properties, veneer lay-up pattern, glue-spread rate

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The uniform properties and higher strength of laminated veneer lumber (LVL) makes it a superior structural material than other solid timber or glue-laminated timber. It requires round logs to process into veneer and laminated parallel to each other to form LVL. However, due to shortage of quality timber (round log), efforts have been made to use alternative materials such as oil palm trunk to produce LVL. This study was undertaken to determine the flexural properties of oil palm LVL of different veneer lay-up patterns and glue-spread rates. In this study, nine types of LVL were produced using three different veneer layup patterns and three glue spread rates i.e., 250, 300 and 350 gm2 for double glueline. The results revealed that LVL with optimum flexural properties (bending properties and shear strength) was produced using outer-layer veneers bonded by phenol formaldehyde at a glue spread rate of 350 gm2. Higher glue spread rate and veneers of the outer-layer of oil palm trunk can produce LVL of better flexural properties.

ISSN 1511-3701

e-ISSN 2231-8542

Article ID

JTAS-0008-2007

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