Geomembrane RGC-MB

Polymeric geomembranes in rolls, type “RGK-MB”, are making by extrusion method based on high density polyethylene (HDPE) or linear low density polyethylene (LLDPE). This material is intended for waterproofing works of varying complexity, for protection against corrosion and for waterproofing of concrete constructions, the barrier layers in embankments. Specific conditions of use the materials can be available with smooth surface or textured on one or both sides, as well as with geotextiles combined and made of polypropylene or polyester fibers.

Advantages of the material:

- Water-tightness;
- Service temperature of geomembranes: from -70°C to +70°C;
- Chemical stability pH = 0,5÷14;
- Service durability exceeds 80 years;
- Non-toxic material.

When making the material the carbon black is applied for ultraviolet radiation protection. Its contents should make 2, 0% by weight.

        

Applications of geomembranes:

- Solid waste landfills;
- Especially hazardous industrial waste and slag waste storages;
- Potable water tanks;
- Waste water tanks, irrigation and fire reservoirs;
- Petroleum storage reservoirs insulation;
- Architectural and landscape impoundments;
- Concrete tanks protection;
- Foundations seal and tanking;
- Waterproofing in dams, dikes and tunnels structures.

The website section is under construction 

Table 1 – Physical and mechanical properties of smooth geomembranes type “RGK-MB”

 

Tested property

HDPE membranes , thickness, mm

LLDPE membranes , thickness, mm

 

1,0

1,5

2,0

2,5

3,0

1,0

1,5

2,0

2,5

3,0

  Density of membrane, g/cm3

≥0,94

≥0,92

  Tensile strength, MPa, min

 

   at +20°C

 

   -  in-line longitudinal direction or MD

27

27

   -  cross-line transverse direction or TD

27

27

   at +50°C

 

 

   -  in-line longitudinal direction or MD

26

26

   -  cross-line transverse direction or TD

26

26

   at -20°C

 

 

   -  in-line longitudinal direction or MD

27

27

   -  cross-line transverse direction or TD

27

27

   Relative breaking elongation, %, min

 

 

   at +20°C

 

 

   -  in-line longitudinal direction or MD

700

800

   -  cross-line transverse direction or TD

700

800

   at +50°C

 

   -  in-line longitudinal direction or MD

750

900

   -  cross-line transverse direction or TD

750

900

   at -20°C

 

   -  in-line longitudinal direction or MD

650

750

   -  cross-line transverse direction or TD

650

750

   Yielding point at yield at +20°C, MPa, min

 

   -  in-line longitudinal direction or MD

15,0

-

   -  cross-line transverse direction or TD

15,0

-

   Relative elongation to yielding point, %, min

12,0

-

   Secant modulus under 2% deformation, H/mm

-

-

-

-

-

420

630

840

1050

1260

   Rupture resistance, H, min

125

190

250

315

375

100

150

200

250

300

   Puncture resistance, H, min

320

480

640

800

960

250

370

500

620

750

   Bursting strength, H/mm3

18

16

   Weakening after 30 freeze-thaws, %, from reference value, max

10

10

   Aged weakening after 90 days at 85°C, from reference value, max

45

50

   UV post- irradiation weakening, 400 hours, %, from reference value, max

15

20

   5 mm radius of curvature at -40°C

There should be no cracking and any other visible defects on surface of the sample

There should be no cracking and any other visible defects on surface of the sample

   Dimensional measurements when heated at (70±2) °C within 6 hours, %,  max

2,0

2,0

   Resistance to water within 3 hours under hydraulic pressure of 0,3 (3,0) MPa (kgf/cm2G)

 

No water

 

No water

   Water absorption by mass within 30 days, %,  max

0,002

0,002

   Vapour permeability, mg/m hour

No vapor transmission

No vapor transmission

   Chemical stability after steeping in solution within 1000 hours, %, max

 

 

   -          at pH 0,5:

 

 

   -          weight metering

0,05

0,05

   -          dimensional measurement

0,5

0,5

   -          at pH 13:

 

 

   -          weight metering

0,05

0,05

   -          dimensional measurement

1,5

1,5

   Degree of flammability:

 

 

   -          highly combustible

After flame time exceeds 300 seconds

After flame time exceeds 300 seconds

   -          mean rate of combustibility

After flame time is not more than 30 seconds

After flame time is not more than 30 seconds

 

Table 2 – Physical and mechanical properties of embossed geomembranes type “RGK-MB”

 

Tested property

HDPE membranes (high density poly ethylene-based), thickness, mm

LLDPE membranes (linear low density polyethylene-based), thickness, mm

 

1,0

1,5

2,0

2,5

3,0

1,0

1,5

2,0

2,5

3,0

   Density, g/cm3

≥0,94

≥0,92

   Tensile strength, MPa, min

 

   at +20°C

 

   -   in-line longitudinal direction or MD

(10,5)

11

   -   cross-line  transverse direction or TD

(10,5)

11

   at +50°C

 

   -   in-line  longitudinal direction or MD

9

10

   -   cross-line  transverse direction or TD

9

10

   at -20°C

 

   -   in-line  longitudinal direction or MD

(10,5)

11

   -   cross-line  transverse direction or TD

(10,5)

11

   Breaking elongation, %, min

 

   at +20°C

 

   -   in-line  longitudinal direction or MD

100

250

   -   cross-line  transverse direction or TD

100

250

   at +50°C

 

   -   in-line  longitudinal direction or MD

120

300

   -   cross-line  transverse direction or TD

120

300

   at -20°C

 

   -   in-line  longitudinal direction or MD

90

200

   -   cross-line  transverse direction or TD

90

200

   Tensile strength at yield at +20°C, MPa, min

 

   -   in-line  longitudinal direction or MD

15,0

-

   -   cross-line  transverse direction or TD

15,0

-

   Tensile strain at yield, %, min

12,0

-

   Secant modulus under 2% deformation, H/mm

-

-

-

-

-

420

630

840

1050

1260

   Tear resistance, H, min

125

190

250

315

375

100

150

200

250

300

   Weakening after 30 freeze-thaws, %, from reference value, max

10

10

   Aged weakening after 90 days at 85°C, from reference value, max

45

50

   UV post- irradiation weakening, 400 hours, %, from reference value, max

15

20

   5 mm radius of curvature at -40°C

There should be no cracking and any other visible defects on surface of the sample

There should be no cracking and any other visible defects on surface of the sample

   Resistance to water within 3 hours under hydraulic pressure of 0,3 (3,0) MPa (kgf/cm2G)

 

No water

 

No water

   Water absorption by mass within 30 days, %,  max

0,002

0,002

   Vapor transmission rate, mg/m hour

No vapor transmission

No vapor transmission

   Chemical stability after steeping in solution within 1000 hours, %, max

 

 

   -          at pH 0,5:

 

   -          weight metering

0,05

0,05

   -          dimensional measurement

0,5

0,5

   -          at pH 13:

 

   -          weight metering

0,05

0,05

   -          dimensional measurement

1,5

1,5

   Degree of flammability:

 

   -          highly combustible

After flame time exceeds 300 seconds

After flame time exceeds 300 seconds

   -          mean rate of combustibility

After flame time is not more than 30 seconds

After flame time is not more than 30 seconds

Table 3 – Characteristics for needle-punched fabric made from polypropylene materials

   Characteristic name

PP-150

PP-200

PP-250

PP-300

PP-350

PP-400

PP-450

PP-500

PP-550

PP-600

   Surface weight, g/m2 +5/- 10%

150

200

250

300

350

400

450

500

550

600

   Thickness under pressure of 2,0 kPa, mm, min

1,0

1,2

1,4

1,6

1,8

2,0

2,2

2,5

2,8

3,0

   Breaking strength, kN/m, min:

 

   -          along

5,6

8,2

10,2

12,2

14,2

16,2

18,2

19,6

21,0

22,8

   -          across

3,6

6,6

8,3

9,9

11,6

13,2

15,0

16,6

18,0

19,2

   Relative breaking elongation, %, max

100

   Filtration coefficient under pressure of 2,0 kPa, m/day, min

70

65

60

55

55

45

45

40

40

40

   Hole content O90 , µm, min

100

80

60

   Impact puncture strength, kN, min

1,0

1,5

   Cone breakdown, mm, max

30

20

   Bruise resistance when laying, %, min

80

   UV resistance, %, min

80

   Aggressive influences resistance, %, min

80

   Resistance to microorganisms, %, min

90

   Cold-resistance coefficient, %, min

80


Table 4 – Characteristics for needle-punched fabric made from polyether materials

Characteristic name

PL-100

PL-130

PL-160

PL-200

PL-250

PL-300

PL-330

PL-350

PL-360

Surface weight, g/m2 +/- 10%

100

130

160

200

250

300

330

350

360

Thickness under pressure of 2,0 kPa, mm, +/- 15%

1,8

1,9

2,0

2,5

2,7

3,0

3,2

3,3

3,5

Tensile strength, kN/m, min:           

 

-              along

2,8

3,4

4,4

6,0

6,6

8,8

11,0

11,8

12,0

                across

2,8

3,4

4,4

6,0

6,6

8,8

11,0

11,8

12,0

Tensile elongation, %, max

100

Filtration coefficient under pressure of 2,0 kPa, m/day, min

65

65

65

60

60

55

55

50

50

Hole content O90 , µm, min

100

80

Impact puncture strength, kN, min

1,0

1,5

Cone breakdown, mm, max

30

20

Bruise resistance when laying, %, min

80

UV resistance, %, min

80

Aggressive influences resistance, %, min

80

Resistance to microorganisms, %, min

90

Cold-resistance coefficient, %, min

80

Table 5 - Basic geometrics of geomembranes type “RGB-MB” 

Geomembrane  thickness, mm

Roll length, m

Roll width, m

1,0 ±10%

200±0,5

 

 

5,0±1,0%

1,5 ±10%

100±0,5

2,0 ±10%

80±0,5

2,5 ±10%

80±0,5

3,0 ±10%

80±0,5

*Preparation of geomembranes with any other dimensions should be allowed  by agreement with the customer


Table 6 - Basic geometrics of geomembranes type “RGB-MB” with rolled down geotextiles with surface weight 150-250 g/m2 *

Geomembrane  thickness, mm

Roll length, m

Roll width, m

Geotextile fabric width, m

1,0 ±10%

100±0,5

 

 

5,0±1,0%

 

 

4,6±1,0%

1,5 ±10%

100±0,5

2,0 ±10%

80±0,5

2,5 ±10%

80±0,5

3,0 ±10%

70±0,5

*Preparation of geomembranes with any other dimensions should be allowed  by agreement with the customer