Biocomposite Material Based on Wood Waste

The study is dedicated to the development and comprehensive examination of an innovative building material based on natural casein adhesive and wood shavings, aimed at improving the environmental friendliness and sustainability of construction materials. The research describes in detail the preparation method of experimental samples in the form of bricks, including the formulation of casein adhesive using technical casein and lime, the selection and pretreatment of wood shavings, the mixing process, pressing, thermal treatment, and drying stages. The paper outlines the procedures used to evaluate the physical and mechanical properties of the obtained material, such as compressive and flexural strength, density, water absorption, thickness swelling, frost resistance under cyclic freezing and thawing, as well as thermal resistance under hightemperature exposure. Special attention is paid to the comparative analysis of the obtained biocomposite with commonly used building materials, such as oriented strand boards (OSB), particle boards, clay and sand-lime bricks, and lightweight concrete (arbolite), which allows to identify competitive advantages and limitations of the proposed material. The study also highlights the key factors affecting the performance of the material, including the ratio of adhesive to filler, the moisture content of raw materials, and the conditions of pressing and curing. The results demonstrate that the developed biocomposite material achieves a compressive strength of 10–15 MPa, a density of 800–900 kg/m³, water absorption of 30–40 %, and moderate frost and thermal resistance, making it suitable for use in low-rise construction, non-load-bearing walls, and interior partitioning. The conclusions emphasize the scientific novelty of the proposed approach, its practical significance for the development of sustainable construction technologies, and the potential for further optimization and scaling of the manufacturing process to improve water and frost resistance, enhance durability, and broaden application areas. The article serves as a foundation for future research on eco-friendly biocomposite materials.