Compression of Acetylated Beech (Fagus sylvatica L.) Laminated Veneer Lumber (LVL)

Acetylation with acetic anhydride is well known to improve the dimensional stability and durability of wood. Veneer appealing for acetylation because its thin thickness, which supports a complete even impregnation difficult-to-treat wood species, such as beech (Fagus sylvatica L.). Unlike resin-based veneer impregnation, acetylated does not require any additional curing. As result, properties are already altered prior bonding. The compression thickness reduction in during manufacturing laminated lumber (LVL) utilizing 1, 3, 6 MPa at 150 °C 30 min investigated this study. results show that considerably less compressible than references. Moreover, density LVL low pressure (1 MPa) similar one references, though compressibility much lower. This due added acetyl groups after acetylation. most likely caused decrease moisture content (MC) accompanied mechanisms.