The effect of wood modification under high temperature and pressure on its physical and mechanical properties

Wood is an ideal building material since it is renewable and environmentally friendly. However, due to its lack of dimensional stability and durability, it may be limited in structural applications. As a result, modification is required to address the problems mentioned above. Significant developments in wood modification have occurred over the past three decades; high temperature and pressure treatment are regarded as the most efficient since it does not need chemicals. This paper gives an overview of the effects of improving wood quality under high temperature and pressure treatment. This study used a qualitative method and structured literature study. The parameters observed were wood modification, thermally based processes, high temperature and pressure treatment, as well as their effect on improving physical and mechanical properties such as mass loss, equilibrium moisture content, dimensional stability, changes in anatomy, crystallinity, and wood color. In conclusion, this paper will contribute to the recent updates in wood modification under high temperature and pressure treatment and summarize data collected by the authors by systematically comparing the findings.