Classification of timber based on mode of growth, Civil Engineering

Classification Based on Mode of Growth: On the basis of mode of growth trees are classified as (a) Exogeneous and (b) Endogeneous

(a) Exogeneous Trees: These trees grow outward by adding distinct consecutive ring  in every year. These rings are called as annual rings. Therefore it is possible to find the age of timber by counting these annual rings. These trees can be further divided into

(1) coniferrous and

(2) deciduous.

Coniferrous trees consists cone shaped leaves and fruits. The leaves do not fall until new ones are grown. They yield soft wood.

Deciduous trees have broad leaves. In autumn these leaves fall and new ones appear in springs. They yield strong wood and therefore they are commonly utilized in building construction.

(b) Endogeneous Trees: These trees grow inwards. Fresh fibrous mass is in the inner most portions. Instance of endogenous trees are cane and bamboo. They are unuseful for structural works.

Posted Date: 10/16/2012 3:05:39 AM | Location : United States







Related Discussions:- Classification of timber based on mode of growth, Assignment Help, Ask Question on Classification of timber based on mode of growth, Get Answer, Expert's Help, Classification of timber based on mode of growth Discussions

Write discussion on Classification of timber based on mode of growth
Your posts are moderated
Related Questions
State the Modulus of Elasticity of Concrete The Young's modulus of elasticity of concrete is primarily influenced by the elastic properties of the aggregate and to a lesser ex

Determine about the tensile stresses Unifody prestressed members designed for equal flexure in opposite directions,without permitting tensile stresses under working loads, requ

SHEAR STRESS DISTRIBUTION INTO CIRCULAR SECTION DERIVATION

Roads in Marshy Areas: The Problems Encountered Roads passing through marshy and swampy ground and waterlogged areas have stable ground generally in a saturated condi

Q. Mechanism of plastic settlement in fresh concrete? Within a few hours after placing of fresh concrete, plastic concrete can experience cracking due to occurrence of plastic

Cross-section of exogeneous tree

Reinforcement in thrust blocks In general situation, reinforcement isn't essential for thrust blocks in pressurized pipelines. Though certain amount of reinforcement hasto be

Define the Pressure on a vertical plane Fluid pressure increases linearly with increasing depth. The average pressure on a vertical plane occurs at the average vertical depth.

Q. Explain about Vierendeel girder? Vierendeel girder design is sometimes adopted in design of footbridges. Traditionally truss design, triangular shape of truss is generally u