Natural Geotextiles
Natural Fiber Geotextiles
Dr Muhammad Mushtaq Mangat www.mushtaqmangat.org
Natural Fiber Geotextiles
As old as human history Ziggurat in the ancient city of Dur-Kurigatzu (now known as Agar-Quf) The Babylonians 3000 years ago constructed this ziggurat using reeds in the form of woven mats and plaited ropes as reinforcement Great Wall of China The Great Wall of China, completed circa 200BC, utilized tamarisk branches to reinforce mixtures of clay and gravel
Modern application
The first use of a textile fabric structure for geotechnical engineering was in 1926, undertook a series of tests using woven cotton fabrics as a simple type of geotextile/ geomembrane, to help reduce cracking, ravelling and failures in roads construction [1].
Highways Department in South Carolina USA
Woven mat and plaited rope reeds used as reinforcement in the Ziggurat at Dur Kurigatzu [1]
[1]
Vegetable fibers
Vegetable fibers contain a basic constituent, cellulose, which has the elements of an empirical formula (C6 H10 O5 )n .
They can be classed morphologically, that is
according to the part of the plant from which they are obtained. [1]:
Bast or phloem fibres (often designated as soft fibres) are enclosed in the inner bast tissue or bark of the stem of the dicotyledonous plants, helping to hold the plant erect. the cellular and woody tissues, i.e. the plant stalks are rotted away from the fibres. Examples of the most common of these are flax, hemp and jute.
Retting is employed to free the fibers from
hemp Ramie
Jute
Flax
Leaf fibres
Leaf fibres (often designated as hard fibres) run
hawser-like within the leaves of monocotyledonous plants. of the leaves.
These fibres are part of the fibrovascular system The fibres are extracted by scraping the pulp
from the fibres with a knife either manually or mechanically. Examples of these are abaca and sisal.
Dr Muhammad Mushtaq Mangat www.mushtaqmangat.org
Natural Fiber Geotextiles
As old as human history Ziggurat in the ancient city of Dur-Kurigatzu (now known as Agar-Quf) The Babylonians 3000 years ago constructed this ziggurat using reeds in the form of woven mats and plaited ropes as reinforcement Great Wall of China The Great Wall of China, completed circa 200BC, utilized tamarisk branches to reinforce mixtures of clay and gravel
Modern application
The first use of a textile fabric structure for geotechnical engineering was in 1926, undertook a series of tests using woven cotton fabrics as a simple type of geotextile/ geomembrane, to help reduce cracking, ravelling and failures in roads construction [1].
Highways Department in South Carolina USA
Woven mat and plaited rope reeds used as reinforcement in the Ziggurat at Dur Kurigatzu [1]
[1]
Vegetable fibers
Vegetable fibers contain a basic constituent, cellulose, which has the elements of an empirical formula (C6 H10 O5 )n .
They can be classed morphologically, that is
according to the part of the plant from which they are obtained. [1]:
Bast or phloem fibres (often designated as soft fibres) are enclosed in the inner bast tissue or bark of the stem of the dicotyledonous plants, helping to hold the plant erect. the cellular and woody tissues, i.e. the plant stalks are rotted away from the fibres. Examples of the most common of these are flax, hemp and jute.
Retting is employed to free the fibers from
hemp Ramie
Jute
Flax
Leaf fibres
Leaf fibres (often designated as hard fibres) run
hawser-like within the leaves of monocotyledonous plants. of the leaves.
These fibres are part of the fibrovascular system The fibres are extracted by scraping the pulp
from the fibres with a knife either manually or mechanically. Examples of these are abaca and sisal.
References: [1]. Pritchard, M., Sarsby, R. W., Anand, S. C., Textiles in civil engineering. Part 2 – natural fibre geotextiles in Handbook of Technical Textiles A.R. Horrocks, Anand, S. C., Editor 2000, Woodhead Publishing Ltd Cambridge.