APPLICATION OF GEOTEXTILES

1. “APPLICATIONS OF GEOTEXTILES”
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2. CONTENTS
1. INTRODUCTION
2. MATERIALS USED IN GEOTEXTILES
3. PROPERTIES OF GEOTEXTILES
4. TYPES OF GEOTEXTILES
5. APPLICATION OF GEOTEXTILES
6. ADVANTAGES AND DISADVANTAGES OF GEOTEXTILES
7. CONCLUSION
REFERENCES.
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3. INTRODUCTION
The geotextiles defines as a “Fabric or synthetic material
placed between the soil and a pipe, gabion, or retaining wall (to
enhance water movement and retard soil movement) and as a
blanket to add reinforcement and separation”
Permeable geosynthetics comprised solely of textiles,
geotextiles are used with foundation, soil, rock or any other
geosynthetical engineering related material as an integral part 3

4. MATERIALS USED IN GEOTEXTILES
Geotextiles are made from polypropylene, polyester, polyethylene,
polyamide (nylon), polyvinylidene chloride, and fiberglass
Polypropylene and polyester are most used
Yarns are formed from fibers which have been bundled and twisted
together, a process also referred as spinning
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5. POLYTHYLENE
POLYPROPYLENE AND NYLON POLYESTER
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6. MECHANICAL PROPERTIES
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7. WOVEN TYPE
 Based on their manufacture
they can be sub divided into
several categories
 These were the first to be
developed from the synthetic
fibers
TYPES OF GEOTEXTILES
WOVEN TYPE GEOTEXTILE
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From adopting techniques which are similar to weaving
usual clothing textiles
 The majority of geotextiles are manufactured from
polypropylene

9. NON-WOVEN TYPE
 Non-woven type can be manufactured
from either stable fibers or continuous
filament yarn
 The fibers can be bonded together by
adopting thermal, chemical or mechanical
technique
 These are manufactured through a process
of mechanical interlocking or chemical or
thermal bonding of fibers
NON-WOVEN TYPE GEOTEXTILE
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The opening size of thermally loaded geotextiles are of
about a thickness of 0.5-1mm
Chemically loaded are of size of about 3mm
And mechanically bonded are of size about 2-5mm

11. KNITTED TYPE
 Knitted types are manufactured
using process which is adopted
from the clothing textile
industry namely that of knitting
 In this process interlocking a
series of a loops of yarn
together is made
KNITTED TYPE GEOTEXTILE
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12. APPLICATION
Roadways, parking lots, and
construction sites
River canals & coastal works
Filtration
Drainage
Reinforcement
protection
Separation
Railway work
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13. ROAD WORKS
To allow rapid dewatering of the
road bed the geotextiles need to
preserve its permeability without
losting its separating functions
Its filtration characteristics must
not be significantly altered by the
mechanical loading 13
ROAD WORKS

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15. RIVER CANALS & COASTAL WORKS
 Geo textiles protect river
banks from erosion due to
currents or lapping
 When used in conjunction
with natural or artificial
enrockments, they act as a
filter, for erosion prevention
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RIVER CANAL

16. AGRICULTURE
It is used for mud control. For the
improvement of muddy paths and
trails those used by cattle or light
traffic
 nonwoven fabrics are used and are
folded by overlapping to include the
pipe or a mass of grit
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AGRICULTURE

17. FILTRATION
 These are an ideal interface for
reverse filtration in the soil
adjacent to the geotextile
 In all soils water allows fine
particles to be moved
 Part of these will be halted and
rest will pass into the drain
FILTRATION
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Bituminious Courses
Aggregate Bases
Geotextile Layer
Aggregate Drainage Layer
Subgrade
FILTRATION

19. DRAINAGE
 Geotextiles will efficiently
collect superfluous water
from structures
 It will collect rainwater or
surplus water, from the soil
and discharge it
DRAINAGE
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20. REINFORCEMENT
 Heavy geotextiles can be
used to reinforce earth
structures by means of fill
materials
 Thanks to their high soil
fabric friction coefficient and
high tensile strength
REINFORCEMENT
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21. PROTECTION
 Geotextiles are an ideal protection
from erosion of earth embankments
by wave action, currents or repeated
drawdown
 A layer of geotextiles can be placed
so as to prevent leaching of materials
 They can even easily be placed under
water
PROTECTION
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22. SEPARATION
 Geotextiles will prevent two soil layers of
different particle sizes mixing with each other.
 In this geotextiles is most often to prevent the
undesirable mixing of fill and natural soils or
two different types of fills
 A geotextiles can be placed between a rail road
subgrade and track ballast to prevent
contamination
 And it will result in the strength loss of ballast
by intrusion of the subgrade soil
SEPARATION OF DIFFERENT
PAVEMENT MATERIALS
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SEPARATION
Bituminious Courses
Aggregate Bases
Geotextile Layer
Subgrade

24. RAILWAY WORKS
The development of the railway
networks being greatly boosted by
the present state of economy
because of their profitability in
view of increasing cost of energy
and their reliability as a result of the
punctuality of trains even in the
adverse weather condition 24
RAILWAY WORK

25. ADVANTAGES AND DISADVANTAGES
ADVANTAGES
They are lighter in weight, this makes for easier handling and laying
on site
Transport and labour costs are less in real terms
Knitted geotextiles have high tear strength
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26. DISADVANTAGES
Installation is critical and requires experienced contractors
These may delay seed germination, due to reduction in soil
temperature
Geotextiles have maximum flow rate limitations
Not suitable for areas that have foot traffic
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27. CONCLUSION
Geotextiles are effective tools in the hands of civil engineer that have proved to solve
a major geotechnical problems
geotextiles offer a major solution for subgrade improvement and soil protection. The
study using geotextiles for embankment protection shows that the geotextiles laid
embankment’s perform good in terms of functional and structural evaluation
 The geotextiles appeared to be effective in preventing erosion, to retain moisture and
to fecilitate stability of road pavement
And also extensive awareness should be created among the people about the
application of geotextiles
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28. REFFERENCES
1. Bhavesh joshi, Dr . R. P Arora. (2015)-pavement design by using geotextile. “ International journal
of civil engineering and technology”(IJCIET)
2. Truptimalapattnaik, binayakbidyasagar, biplabkesharisamal (2016)- application of geotextile in
pavement. “International journal of engineering science and research technology”
3. Saheem S and Tomy cyriac (2013)-performance evaluation of geotextiles as earth reinforcement in
soil structures.“ American journal of engineering research” (AJER)
4. M.Emin Kuttay and Ahemet H. Aydilk.(2005)-filtration performance of two-layer geotextile
systems. “Geotechnical testing journal” volume.28.no.1.
5. Dr.Bipin JAgarwal (2011)-geotextile application to civil engineering-overview. “National
conference on recent trends in engineering and technology” 28

29. THANK YOU
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