Enhancing wood durability for above ground structures

为了在生物不利的环境中与钢铁和混凝土竞争，大多数加拿大物种的自然耐久性必须通过化学处理来增强。不幸的是，人们对加拿大木材的基本化学成分和影响其耐久性的因素知之甚少。

In order to compete with steel and concrete in biologically adverse environments the natural durability of most Canadian species must be enhanced through chemical treatment. Because of increased attention on the environmental impact of treated wood - the two main issues being the loss of metals from the treated wood in service into ground water, and the disposal of treated wood containing significant amounts of metals - there is an opportunity for alternative strategies involving thermal treatment and wood-polymer composites. Unfortunately, little is known about the fundamental chemistry and factors affecting the durability of Canadian wood species when subjected to these treatments.