RPE® series of geomembranes
| RPE®'s are economical lining materials for seepage control, soil remediation, and interim landfill cap applications. |
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Reinforced Polyethylene (RPE®) has been used as an economical geomembrane material for over 25 years.
Common uses of RPE®'s are canal liners, drilling sump liners, soil remediation liners, tailings dam liners, and interim landfill caps. RPE®'s have UV resistance for short term exposed use, are flexible in extremely low temperatures, and have very good chemical resistance.
RPE®’s are most commonly used for seepage control in non-hazardous applications. In canal liners and water reservoirs a backfilled RPE® liner provides permanent seepage control. In a carefully prepared site on sandy soils RPE® can provide geomembrane level containment, however placement and backfilling of the material needs to be done carefully. |
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| 26 Jan 2006 |
RPE® Typical Material Properties |
| Style |
ASTM |
RPE® 15 |
RPE® 25 |
OR RPE® 25 |
| Thickness (Nominal) |
|
12 mil
0.30 mm |
20 mil
0.51 mm |
24 mil
0.60 mm |
Coating Thickness
(Nominal) |
|
1.75 mil
0.044 mm |
2.5 mil
0.063 mm |
2.5 mil
0.063 mm |
| Tensile Strength MD |
D751 |
210 lbs
930 N |
340 lbs
1,510 N |
360 lbs
1,600 N |
| Tensile Strength CD |
D751 |
180 lbs
800 N |
340 lbs
1,510 N |
360 lbs
1,600 N |
| Elongation |
D751 |
15% |
15% |
15% |
| Tear Strength MD |
D2261
Tongue Tear |
70 lbs
310 N |
125 lbs
560 N |
90 lbs
400 N |
| Tear Strength CD |
D2261
Tongue Tear |
70 lbs
310 N |
125 lbs
560 N |
90 lbs
400 N |
| Low Temperature Bend |
D2136 |
-67°F
-55°C |
-67°F
-55°C |
-67°F
-55°C |
| Burst Strength |
D3786 |
297 psi
2050 kPa |
551 psi
3800 kPa |
609 psi
4200 kPa |
UV Resistance
(Strength Retained) |
G53-84
2000 Hours |
>80%1 |
>80%1 |
>80%1 |
| Note1: UV results are for black product only. Colors other than black may have a lower U.V. resistance. |
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| 15 Dec 2006 |
RPE® Minimum Shop Seam Strengths |
| Style |
ASTM |
RPE® 15 |
RPE® 25 |
OR RPE® 25 |
| Heat bonded Seam Strength |
D6392
25.4 mm
(1") Strip2 |
90 ppi
15.8 N/mm |
120 ppi
21 N/mm |
120 ppi
21.0 N/mm |
| Heat Bonded Peel Adhesion Strength |
D6392
25.4 mm
(1") Strip2 |
FTB
AD-DEL |
FTB
AD-DEL |
FTB
AD-DEL |
| Note 2: Layfield uses a 25.4 mm (1 in.) strip tensile test in it's QC testing due to the nature of the test equipment available. |
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| RPE® FABRICATION SIZES |
Material
Style |
3000 lb Panel
size 1400 kg |
4000 lb Panel
size 1800 kg |
| RPE® 15 |
76,900 ft2
7,200 m2 |
102,500 ft2
9,600 m2 |
| RPE® 25 |
49,000 ft2
4,600 m2 |
65,500 ft2
6,100 m2 |
| OR RPE® 25 |
47,600 ft2
4,500 m2 |
63,500 ft2
5,900 m2 |
Each and every RPE® liner produced is a custom sized panel. These liner panels are sized to your job requirements to the closest multiple of our roll stock widths.
There are no theoretical limits to the size of liner panel we can fabricate, however there are some practical handling weights. Panel weight is important because of the limits of handling equipment available in the field. If a forklift or other piece of equipment is available for placement and deployment then a panel of up to 1800 kg (4000 lbs) could be used. If only "hand power" is available then a panel weight of 1400 kg (3000 lbs) should not be exceeded. Under certain circumstances larger panels could be provided. Please contact your Layfield representative for further details.
EPI utilizes hot air fusion welding for all RPE® fabrication. This welding technique provides a fully fused, water-tight weld. Panels are accordion folded in one direction and then rolled in the other direction. Unfolding instructions and panel size are marked on the individual lining panel. Each panel is wrapped in an opaque, weather resistant, covering suitable for shipment and storage at site.
We maintain large inventories of RPE® materials throughout the construction season. Most RPE® panels can be fabricated and delivered in a matter of days, and larger projects can be supplied very quickly. Please contact your EPI for further delivery information. |
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