Model Item

performance index

4.5

7.5

10

15

20

25

30

40

50

1

Longitudinal and transverse fracture strength，KN/m≥

4.5

7.5

10

15

20

25

30

40

50

2

Elongation corresponding to standard strength in both vertical and horizontal directions %

40-80

3

CBR bursting strengthkN≥

0.8

1.6

1.9

2.9

3.9

5.3

6.4

7.9

8.5

4

thickness，mm≥

0.8

1.2

1.6

2.2

2.8

3.4

4.2

5.5

6.8

5

Mass deviation rate per unit area，%

-5

6

Width deviation rate ，%

-0.5

7

equivalent aperture O₉₀（O₉₅）， mm

0.05-0.20

8

Vertical permeability coefficient，cm/s

K×（10^-1～10 ^-3）K=1.0~9.9

9

Vertical and horizontal tearing strength，≥KN

0.14

0.21

0.28

0.42

0.56

0.70

0.82

1.10

1.25

Serial Number

project

performance index

Nominal strength，kN/m

4.5

7.5

10.5

12.5

15

20

25

30

1

Longitudinal and transverse tensile fracture strength，KN/m≥

4.5

7.5

10.5

12.5

15

20

25

30

2

Longitudinal and transverse fracture elongation%

40-80

3

Vertical and horizontal tearing strength，kN≥

0.14

0.21

0.28

0.35

0.42

0.56

0.70

0.82

4

CBR bursting strength，kN≥

0.8

1.4

1.8

2.2

2.6

3.5

4.7

6.4

5

Vertical and horizontal grip strength，KN≥

0.3

0.6

0.9

1.2

1.4

1.8

2.3

2.8

6

thicknessmm≥

0.8

1.2

1.6

1.9

2.2

2.8

3.4

4.2

7

Equivalent aperture (O95)， mm

0.07-0.20

8

Vertical permeability coefficient，cm/s

1.0×(10^-1～10 ^-3)

9

Mass per unit，≥g/㎡

100

150

200

250

300

400

500

600

10

Width deviation，%

+ 0.5