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Results of Testing the Performance Requirements of the Product

Property

Unit

Requirement

Result

Compressive strength (initial)

kPa

150

178.8

Dynamic impact resistance (mean failure energy)

J

≥ 2.45

7.4

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

%

≥ 50% at 25 years/10°C

77.8

Cold bending at -30°C

N/A

No visible crack

No visible crack

Tensile strength

at yield

kN/m

≥ 8

XD 9.0Footnote (1)

elongation at break

%

≥ 25

XD 25.0

anisotropy ratio

 

≥ 0.5

1.1

Heat aging for 2 weeks

OIT after 2 weeks

min

> 5Footnote (2)

8.64

dimensional change

%

≤ 1

MD -1.0, XD -0.4

weight change

%

≤ 0.1

-0.1

residual compression strength

%

≥ 80 of initial

105

Resistance to alkaline environment

appearance

N/A

No visible crack

No visible crack

residual compression strength

%

≥ 80 of initial

118

bending resistance

N/A

No visible cracks

No visible crack

Geotextile fabric properties

grab tensile

N

≥ 500

MD 650, XD 727

puncture resistance

N

≥ 100

233

trapezoid tear resistance

N

≥ 180

MD 241, XD 311

filtration opening size by hydrodynamic sieving

µm

≤ 180; Report value

123

permittivity

s-1

≥ 0.5; Report value

0.9

UV resistance (retained strength)

% retained

> 50% after 500 hours

MD 81, XD 89

Hydraulic transmissivity (flow rate)

m3/h∙m

1.33

6.96

 

Geometrical Properties

Orientation of the dimples

-

Report value

Square

Number of dimples per unit area

dimples/m2

Report value

1 057

Overall thickness

mm

Report value

7.83

Sheet thickness

mm

Report value

0.6

Hollow core thickness

mm

Report value

7.23

Anchorage performance anchorage efficiency

kN/anchor

Report value

0.92