The paper investigated the possibility of using sawmill industry by-products, i.e. chips and sawdust as raw materials for the production of building wood-based boards. We prepared three-ply boards with the outer layer made from two types of pine particles (A and B) with different dimensions, and the core layer containing a mixture of chips and sawdust at 70 : 30 or 60 : 40 wt ratio. The boards also featured different core layer (CL) to outer layers (OL) ratio of 70 : 30 or 60 : 40. The study demonstrated that unprocessed by-products of mechanical woodworking in the form of chips and sawdust are valuable raw materials for the production of wood-based boards. Irrespective of CL : OL ratio, the boards with the best properties were those with outer layers made of microparticles larger than the ones used currently in particleboard manufacture and with core layers containing 70% of chips. The highest bending strength, modulus of elasticity and dimensional stability of board was noted for CL : OL ratio of 60 : 40, while the highest internal bond was achieved for CL : OL ratio of 70 : 30. These boards may be used as non-structural elements intended for construction industry and interior decoration.

本文研究了使用锯木厂工业副产品（例如木片和锯末）作为生产建筑人造板的原材料的可能性。我们制备了三层板，其外层由两种类型的不同尺寸的松木颗粒（A和B）制成，芯层包含碎屑和锯末的重量比为70:30或60:40的混合物。木板还具有70:30或60:40的不同的芯层（CL）与外层（OL）比率。研究表明，未加工的机械木工副产品以木屑和锯末的形式是加工木材的有价值的原料。生产人造板。不论CL与OL的比例如何，具有最佳性能的木板是那些外层由比目前刨花板生产中使用的微粒大的微粒制成的板，其芯层含有70％的木屑。CL：OL比为60:40时，板的弯曲强度，弹性模量和尺寸稳定性最高，而CL：OL比为70:30时，内部粘结性最高。这些板可用作非用于建筑业和室内装饰的结构元件。