Timber in construction

Timber in construction

The tree basically consists of three parts namely, the stem, the crown and the roots. The stem function is to support the crown and provide water and nutrients from the roots to the leaves on the branches and from the leaves to the roots. they are designed to plant trees in the ground, absorb moisture and mineral substances that contain and dedicate themselves to the trunk.


Details of structure:


In terms of visual characteristics, the structure of the tree can be divided into two categories: -

(1). Macrostructure

(2). Microstructure


Timber-in-construction


Macrostructure:-

A wooden structure that is visible to the naked eye or with a small enlargement is called a macrostructure.


(1) Pith:

the inner part of the tree trunk is called a pith or medulla. It varies in size and shape from a variety of trees. It contains entirely cellular tissue and nourishes its plant at an early age. As the plant matures, the caterpillar dies and decomposes, and the tree is passed on by the woody threads wrapped around the stem of the branch as nothing more than a stem extension.


(2) Heartwood:

The inner rings around the pith form the heart wood.It is usually black in color. we provide durability in the tree which is why we offer solid and durable wood for various engineering purposes.


(3) Sapwood:

The outer rings between the heart wood and cambium are known as sapwood. It is usually lighter in color in lightness and weight. it takes an active part in the growth of the tree and the milk goes straight up through it. The medicinal plant is also known as alburnum.


(4) Cambium layer:

The thin layer of salt between the sapwood and the inner bark is known as the cambium layer.It shows the unadulterated milk into drinking wood. When the bark is removed for any reason, the cambium layer is exposed and the cells stop working leading to the death of the fiber.


(5) Inner bark:

The inner skin or layer covering the cambium layer is known as the inner layer. Provide protection of the cambium layer from any damage.


(6) External bark:

The outer skin or cover of the tree is known as the outer bark.it is the outer protective layer and sometimes contains cracks and fissures.it has cells and wood fibers and is also known as cortex.


(7) Medullary rays:

The tiny radial fibers from the pith to the cambium layer are known as medullary radiation.The function of these radiation is to combine the annual rings of the heart with sapwood. These rays are sometimes broken and in some species of trees, they are not prominent.



Microstructure:

A wooden structure that is only visible in large environments is called a small structure.

The living cell is made up of four parts, the membrane, the protoplasm, the milk, and the nucleus. The cell membrane consists mainly of cellular tissue and cellulose. Protoplasm is a granular, transparent, colored protein composed of carbon, hydrogen, oxygen, nitrogen, and sulfur. The total cell structure differs from the protoplasm in that it is found only in phosphorus and oval.

Cells, according to their function, are divided into the following three categories:

- Running cells

- Mechanical cells

- Storage cells

(1) running cells:

These cells are actively involved in transferring nutrients from the root to the branches and leaves.

(2) Mechanical cells:

These cells are divided, thick, and tightly connected to small internal doors. These cells provide wood energy.

(3) Storage cells:

These cells work to store and transfer nutrients to living cells on the horizontal side and are usually found in medullary radiation.


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