The objectives of the work described in this paper were to present concept processing pathways for manufacturing high value, green-glued finger-jointed Eucalyptus engineered products and review existing research related to these engineered products. Additionally, critical knowledge gaps that need to be addressed in future research were identified. Research on four green-glued Eucalyptus products (green roof trusses, face-laminated beams, edge-laminated planks and panels, and CLT) and some of the processing steps involved, was reviewed. The research review showed that green finger-jointing seems to provide good quality bonds and is suitable for roof truss applications. The finger-jointed lumber has very different properties to existing softwood resources—which will make it more resource-efficient to define new stress grades for this wood resource. An engineered product where green Eucalyptusgrandis was finger-jointed and then face-laminated before drying to equilibrium moisture content had much lower levels of checks, splits, and twist than products that were not face-laminated. Additionally, a higher material resistance factor can be used for this resource in comparison to the current value prescribed in the South African national timber design code. Material and processing variables for green edge lamination has been investigated and it has been found that high strength bonds are possible. Face bonding quality of dry Eucalyptus grandis for CLT has also been investigated and it was found that excellent face-bonding quality could be achieved when using a clamping pressure of 0.7 MPa and with no stress relief grooves present. Future research on this resource and product type should include studies on the process economics, process integration and durability treatment of green-glued, engineered Eucalyptus products.

本文所述工作的目的是提出用于制造高价值，绿色胶合指接桉树工程产品的概念处理路径，并回顾与这些工程产品相关的现有研究。此外，确定了未来研究中需要解决的关键知识缺口。四种绿胶桉树的研究审查了产品（绿色屋顶桁架，面层压梁，边缘层压木板和面板以及CLT）以及其中涉及的一些加工步骤。研究回顾表明，绿色指接似乎提供了良好的粘结效果，并且适合屋顶桁架应用。指接木材与现有的软木资源具有截然不同的特性，这将使资源效率更高，从而可以为该木材资源定义新的应力等级。一个设计的产品，其中绿桉桉先用手指接合，然后进行面层压，然后干燥至平衡，与未面层的产品相比，水分含量的检查，开裂和扭曲程度要低得多。此外，与南非国家木材设计规范中规定的当前值相比，该资源可以使用更高的材料抵抗因子。已经研究了用于生坯层压的材料和工艺变量，并且发现高强度粘结是可能的。干燥桉树的面粘结质量还研究了用于CLT的CBT涂层，发现当使用0.7 MPa的夹紧压力且不存在应力消除槽时，可以实现出色的表面粘接质量。对此资源和产品类型的未来研究应包括对绿色胶合工程桉树产品的工艺经济学，工艺集成和耐久性处理的研究。