CE30160 Lecture Notes - Lecture 21: Equilibrium Moisture Content, Tracheid
Document Summary
Students should be able to explain pros and cons of using wood in construction. Students should know the difference between endogenous and exogenous wood as well as deciduous and conifers. Students should be able to define and understand the following terms: annual growth rings, springwood/earlywood, summerwood/latewood, heart wood, sapwood, bark, cambium. Students should be able to explain what the anisotropic nature of wood is and how it affects the physical and mechanical properties of wood, such as strength, stiffness and shrinkage. The role and structure of the tracheids and parenchyma should be understood. Additionally, students should understand which chemical components of the wood offer the most strength and reasons as to why (i. e. atomic bonding type, etc. ) Students should be able to define moisture content ranges based on given types of moisture contents, i. e. green, dry, fiber saturation point, equilibrium moisture content.