Jute GeoTextile

Geo-textileAbout Jute Geo textile (JGT)

Jute Geo textile (JGT) is an emerging engineering product with application-potential in many area of civil engineering faced with soil related problems. the product has already been successfully tried in protection of banks of rivers and canals, management of slops, strengthening of road, controlling of subsidence of railway tracks, stabilizing embankments & overburden dumps in mines. Continuing research on  JGT is opening up potential of the product in new areas like Fly ash stabilization.

The biggest advantages of jgt is its easy availability, economic price range (much lower than the synthetic and other natural varieties) and Eco-compatibility. Beside JGT can be tailor-made as per end user’s technical requirements like porometry, permittivity, strength and other parameters.

Functions of JGT

JGT, like the synthetic variety, improves the geo-technical properties of the soil on which it is applied. JGT, being permeable, allows the water retained within the soil to permeate across it and also along its plane. The extent of cross permeability (termed as permittivity) and inplane permeability (termed as Transmissivity) depends on the pore size of JGT (termed as porometry). The porometry of JGT determines the extent of soil particle retention on which it is laid. Properly designed JGT (in most cases, in relation to the mean diameter of the soil-grains i.e., d50) arrests migration of the soil particles and imparts strength to the soil body. Properly designed JGT would perform the following functions:

  • Separation

  • Filtration and drainage

  • Initial reinforcement

  • Control of surface soil detachment

  • Promoting vegetation growth or bio technical support.

 Advantage of JGT

  • Economical

  • Easily available

  • Can be tailor-made

  • Precise control on quality and workmanship possible.

  • Quicker execution time.

  • Better adaptability than any other geotextile.

  • Provides a sustainable and eco-compatible solution.

  • Conducive natural protection against erosion through quick growth of vegetation cover.

 

Jute Geo-textile for control of Surface Soil erosion by Rain & Wind

 

Open Weave Geo-textile: Indicative Specification

Properties

1

2

3

Test Method

Weight (g/m2)

500

600

700

ASTM D5261

Threads/dm (MD x CD)

6.5  X 4.5

8 X 7

8 X 8

IS 1963

Thickness

4.5

5.25

5.5

ASTM D5199

Width (cm)

122

122

122

IS 1954

Open area (%)

55

48

40

Strength (kN) (MDxCD)

6.5 x 6.0

12 x6

14 x 7

ASTM D4595

Water Holding capacity (%) On dry weight

500

500

600


Application areas:

  •        Slopes of Road, Railways & Hills

  •        Bridge approach, Slope of Reservoirs & Embankments.

  •        Stabilization of sand dunes in Deserts & on Sea Beaches, Over burden dumps of open cast mines and fly ash dumps of power plants.

  •        Afforestation in semi-arid zone.

 

 

Jute Geotextiles for Separation & Filtration


Typical Woven Geotextiles:  Indicative Specification

Properties

Grey

(Untreated)

Rot resistance (627 gsm)

Grey

(Untreated)

Test Method

Weight (g/m2)

627

627

724

ASTM D5261

Threads/dm (MD x CD)

85 x 32

85 x 32

94 x 39

IS 1963

Thickness

1.70

1.7

1.85

ASTM D5199

Width (cm)

100

100

100

IS 1954

Strength (kN) (MD x CD)

20 x 20

20 x 20

25 x 25

 ASTM D4595

Elongation at break (%) (MD x CD)

12 x 12

12 x 12

12 x 12

 ASTM D4595

Pore size (O90) Micron

300

300

250

ASTM D4751

Water permeability at 10 cm water head (I/m2/s)

40

40

30

ASTM D4491

Puncture resistance (kN)

0.400

0.400

0.500

ASTM D4833


Application areas:

  •      Construction of road & Railway embankments on soft soil.

  •      Strengthening road pavement

  •      River & Canals bank Protection.

Jute Geo-textiles for Filtration & Drainage

Non -Woven Geo-texiles: Indicative Specification

PROPERTIES

1

2

Test Method

Weight (g/m2) at 20% M.R.

500

1000

ASTM D5261

Thickness (mm)

4

8

ASTM D5199

Width (cm)

150

150

IS 1954

Strength (kN/m) [MD x CD]

4 x 5

6 x 7

 ASTM D4595

Elongation at break (%) (MD x CD)

20 x 25

20 x 25

 ASTM D4595

Pore size (O90) Micron

500

300

ASTM D4751

Co-eff. of water permittivity (m/s)

3.4 x 10-3

3.4 x 10-4

ASTM D4491


Application areas:

  •          Construction of concealed rubble brains by the side of Roads & Railways.

  •          Drainage for fill materials in flyovers.