Timber Vocations for Civil Engineering.pptx

About timber

1. Timber Vocations Soe Moe Aung

2. Timber Timber has played a crucial role in human civilization for thousands of years. Join us on a journey through time as we explore interesting facts about timber. Timber was one of the earliest materials used by humans. Early civilizations used timber for basic tools, shelter, and firewood. Ancient Egyptians and Mesopotamians used timber for building houses, ships, and even furniture.

3. Classification of Timber Trees are classified into different types based on various characteristics. One common classification is based on their growth patterns, distinguishing between exogenous and endogenous trees. Let's explore these classifications in detail. Exogenous Tree Endogenous Tree

4. Exogenous Tree Growth Rings: Exogenous trees develop annual growth rings visible in cross-sections. Vascular Bundles: They have a complex arrangement of vascular bundles in their stem. Leaves: Typically, exogenous trees have broad, flat leaves with reticulate venation. Examples: Oak, Maple, Pine, Ash, etc. Outward

5. Exogenous Tree

6. Endogenous Tree No Growth Rings: Endogenous trees do not form visible annual growth rings. Vascular Bundles: They have scattered vascular bundles throughout the stem. Leaves: Generally, endogenous trees have long, narrow leaves with parallel venation. Examples: Palm, Bamboo, Banana, Sugar cane, etc. Inward

7. Endogenous Tree

8. Exogenous Tree

9. Exogenous Tree

10. Exogenous Tree