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Results of Testing the Performance Requirements of the Product

Property

Unit

Requirement

Result

Compressive strength (initial)

kPa

150

322

Dynamic impact resistance (mean failure energy)

J

≥ 2.45

3.2

Creep resistance (residual thickness at 25 years/10°C)

%

≥ 50% at 25 years/10°C

82.6

Cold bending at -30°C

N/A

No visible crack

No visible crack

Tensile strength

at yield

kN/m

≥ 8

 XDFootnote (1) 9.5

elongation at break

%

≥ 25

XD 31.2

Anisotropy Ratio

 

≥ 0.5

1.8

Heat aging for 8 weeks

dimensional change

%

≤ 1

MD -1, XD -0.8

weight change

%

≤ -0.1

-0.3Footnote (2)

residual compression strength

%

≥ 80 of initial

103.3

creep resistance (residual thickness at 25 years/10°C)

%

≥ 40% at 25 years/10°C

85.1

Resistance to alkaline environment

appearance

N/A

No visible crack

No visible crack

residual compression strength

%

≥ 80 of initial

111.5

bending at resistance

N/A

No visible cracks

No visible crack

Geotextile fabric properties

grab tensile

N

≥ 500

MD 595.5, XD 695.6

puncture resistance

N

≥ 100

197

trapezoid tear resistance

N

≥ 180

MD 258.1, XD 278.8

filtration opening size by hydrodynamic sieving

µm

≤ 180; report value

145

permittivity

s-1

≥ 0.5; report value

1.4

UV resistance (retained strength)

% retained

> 50% after 500 hours

MD 103.1, XD 91.6

Hydraulic transmissivity (flow rate)

m3/h∙m

1.33

6.46

 

Results of Testing the Performance Requirements of the Product

Geometrical Properties

Orientation of the dimples

-

Report value

Square MD/CD

Number of dimples per unit area

dimples/m2

Report value

1259

Overall thickness

mm

Report value

8.66

Sheet thickness

mm

Report value

0.64

Hollow core thickness

mm

Report value

8.02

Anchorage performance anchorage efficiency

kN/anchor

Report value

0.48