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提高。由于人们日益关注经处理的木材对环境的影响-两个主要问题是经处理的木材在使用中的金属流失到地下水中，以及处理含有大量金属的经处理的木材-因此有机会采用涉及热处理和木材-聚合物复合材料的替代战略。不幸的是，很少有人知道的基本化学和影响加拿大木材品种的耐久性的因素时，受到这些处理。

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.