WOOD

WOOD

1. DEFINITION

   • Wood is a fibrous matirial that trees are made of

2. Parts of the trunk

   • Heartwood
   • Pith
   • Sapwood
   • Bark
   • Cambium
   • Growth rings

3. Types of wood

   • Non-resinous
   • Resinous

4. The propiertie of wood

   • Hardness
   • Thermal and electrical insulation
   • Flexibility
   • Density
   • Hygrosopicity
   • Sound conductivity
   • Splitability
   • Toughness

5. Diferent forms

   • Strips
   • mouldings or profiles
   • Boards and planks
   • Beams
   • Panels
   • Sheets or veneers

6. With cellulose we can do paper and cardboard

7. Joints

   • Fixet joints
   • Dowel joints
   • Nailed joints