Geosynthetics are polymeric products used to solve civil engineering problems. They include geotextiles, geogrids, geomembranes, and other products. Geosynthetics have a wide range of applications in transportation, infrastructure, environmental protection, and private development. They serve five primary functions: separation, filtration, reinforcement, drainage, and containment. Common geosynthetic materials include woven and nonwoven geotextiles, uniaxial and biaxial geogrids, geomembranes, and geocomposites.

1. GEOSYNTHETICS

2. INTRODUCTION
Geosynthetics is the term used to describe a range of generally polymeric
products used to solve civil engineering problems. The term is generally
regarded to encompass eight main product
categories: geotextiles, geogrids, geonets, geomembranes, geosynthetic clay
liners, geofoam, geocells and geocomposites. The polymeric nature of the
products makes them suitable for use in the ground where high levels of
durability are required. Properly formulated, however, they can also be used in
exposed applications. Geosynthetics are available in a wide range of forms and
materials, each to suit a slightly different end use.
These products have a wide range of applications and are currently used in
many civil, geotechnical, transportation, geoenvironmental, hydraulic, and
private development applications
including roads, airfields, railroads, embankments, retaining
structures, reservoirs, canals, dams, erosion control, sediment
control, landfill liners, landfill covers, mining, aquaculture and agriculture.

3. • Separation
• Filtration
• Reinforcement
• Drainage
• Containment

4. GEO TEXTILE
Geotextiles are permeable fabrics which, when used in association with soil, have the ability to
separate, filter, reinforce, protect, or drain.
Usually geotextiles are placed at the tension surface to strengthen the soil. Geotextiles are also used for
sand dune armoring to protect upland coastal property from storm surge, wave action and flooding. A large
sand-filled container (SFC) within the dune system prevents storm erosion from proceeding beyond the SFC.
Using a sloped unit rather than a single tube eliminates damaging scour.
Geotextile sand-filled units provide a "soft" armoring solution for upland property protection. Geotextiles
are used as matting to stabilize flow in stream channels and swales.
Geotextiles can improve soil strength at a lower cost than conventional soil nailing. In addition, geotextiles
allow planting on steep slopes, further securing the slope.
Geotextiles have been used to protect the fossil hominid footprints of Laetoli in Tanzania from erosion, rain,
and tree roots
In building demolition, geotextile fabrics in combination with steel wire fencing can contain explosive debris

6. Geogrids
(Uniaxial &Biaxial)
Geotextiles
Woven
Geosynthetic
Clay Liners
Nonwoven
GeomembranesGeonet

7. Woven Geotextile - Separator (Thane, Mumbai)
WOVEN GEOTEXTILES
Geogrid Wraparound Wall at CH. 48 KM & CH. 50 KM,
Lucknow - Muzaffarpur National Highway Project
Filter - Woven geotextiles

8. Separator - Approach Embankment for Bridge across Vasista,
Godavari at Chinchinada, A.P. (N H 5A)3
Reinforcement, Vishakapatnam Airport, Andhra Pradesh
WOVEN GEOTEXTILES

9. M.Venkataraman, GWRL.
GEOTEXTILE TUBE - SHORE PROTECTION
Geotextile Tube
HWL
Geotextile Bags
Woven Geotextile
Shore Protection Works :
Shankarpur to Halda, West Bengal, India
WOVEN GEOTEXTILES
Filter Material
Geotextile Bags – Toe Protection
Geotextile Tube
Geotextile Bags
Geotextile Tube
After installation - During High Tide

10. NONWOVEN GEOTEXTILES
Protection Layer,
Doodhganga Canal Project,
Kolhapur, Maharashtra
Lining of Dry Gypsum Pond, Coromandal Fertilizers Ltd.,
Vishakapatnam

11. NONWOVEN GEOTEXTILES
Protection Layer in Landfills, HZL, Visakhapatnam, A.P

12. Tensar® Geogrid Reinforced Soil Wall System at CSEB,
– Inner Side View, towards deck slab (Korba, India)
UNIAXIAL GEOGRIDS
RS Wall with Gabion Facia and Geogrid as
reinforcement at Bellary, Karnataka)

13. Geogrid Wraparound Wall at CH. 48 KM & CH. 50 KM,
Lucknow - Muzaffarpur National Highway Project
UNIAXIAL GEOGRIDS

14. Installation of Tensar SSLA30 Biaxial Geogrid at
ballast level (Kazipet-Ballarshah section,, South
Central Railway)
Subgrade Stabilization using Tensar Biaxial Geogrids
Talasari - Udhava Major Dist. Road, PWD, Maharashtra
BIAXIAL GEOGRIDS

15. BIAXIAL GEOGRIDS
Ground Improvement for Tank Foundation,
HPCL, Mundra, Gujarat

16. Reservoir Lining, Finolex Industries, Maharashtra Doodhganga Canal Project
(Kolhapur, Maharashtra)
HDPE GEOMEMBRANE
Lining of Dry Gypsum Pond, Coromandal Fertilizers Ltd.,
Vishakapatnam

17. HDPE GEOMEMBRANE
Landfill, HZL Visakhapatnam, A.P
PCMC Landfill, Pune

18. M.Venkataraman, GWRL.
GEOGRIDS IN PAVEMENTS
• Properties Influencing Effective Performance of
the Product
Rib Thickness & Shape
Aperture Size & Shape