Prevent Sliding And Erosion With HDPE Textured Geomembrane Column Point Structure
Product Introduction
Columnar point rough geomembrane is a special type of geomembrane, which adds columnar or point texture on the basis of traditional rough geomembrane to improve its friction coefficient and adhesion.
Advantages of HDPE Textured Geomembrane With Column Point Structure
1). Enhanced coefficient of friction: The column point design provides a higher coefficient of friction, helping to prevent geomembrane from sliding on slopes.
2). Anti-slip function: the column point structure enhances the anti-slip performance of the geomemofilm, which is suitable for steep slopes and vertical anti-seepage projects.
3). High tensile strength: Compared with the traditional rough surface geomembrane, the post point geomembrane has higher tensile strength.
4). High friction coefficient: the friction coefficient of the column point geomembrane is usually 0.8, which is much higher than the traditional rough geomembrane.
5). Chemical corrosion resistance: It has good chemical corrosion resistance and can resist the erosion of various chemical substances.
6). Environmental stress cracking resistance: can maintain stability in harsh environments, not easy to crack.
HDPE Textured Geomembrane Production Process
The production of Jianyi High Density Polyethylene Textured Geomembranes as follows:
Our product parts of testing equipments:
Thickness Tester Fiber Strength Tester Carbon Black Tester
Product Application
1. Steep slope seepage prevention: column point rough surface geomembrane is especially suitable for steep slope seepage prevention projects to improve the stability of the project.
2. Vertical impermeability: In vertical or near-vertical impermeability projects, the column point design helps to keep the geomembrane fixed.
3. Dam reinforcement: used for dam reinforcement engineering, improve the stability of the dam and anti-seepage performance.
4. Landfill: It is used in the slope anti-slip and anti-seepage of landfill and sealed field to prevent pollutants from penetrating into the environment.
Jianyi have Eight production lines, so we can supply complete specifications to meet different requirements of our customers.
- Smooth geomenbrane and Rough geomenbrane production line.
- Long fiber geotextile production line and Staple fiber geotextile production line
- Composite geomembrane production line
- 3m and 6m Compound drainage network production line
- Bentonite waterproof blanket production line
Product Specification
* Thickness(mm): 1.00mm~2.50mm
* Width: 6m~8m
* Roll length: 50m~100m (customized request accept)
Customized request accept for all above.
National Standard for Rough Geomembrane (GB/T 17643-2011(GH-2T1,GH-2T2))
| Serial Number |
Project |
Index |
| Thickness(mm) |
0.75 |
1.00 |
1.25 |
1.50 |
2.00 |
2.50 |
3.00 |
| 1 |
Density (g/c㎡,≥) |
≥0.940 |
| 2 |
Textured Highth (mm) |
≥0.25 |
| 3 |
Yield Strength (N/mm,LD/TD) |
≥11 |
≥15 |
≥18 |
≥22 |
≥29 |
≥37 |
≥44 |
| 4 |
Breaking Strength (N/mm,LD/TD) |
≥8 |
≥10 |
≥13 |
≥16 |
≥21 |
≥26 |
≥32 |
| 5 |
Yeild Elongation Rate (%) |
≥12 |
| 6 |
Breaking Elongation Rate (%) |
≥100 |
| 7 |
Rectangular Tear Strength (N) |
≥93 |
≥125 |
≥160 |
≥190 |
≥250 |
≥315 |
≥375 |
| 8 |
Puncture Strength (N) |
≥200 |
≥270 |
≥335 |
≥400 |
≥535 |
≥670 |
≥800 |
| 9 |
Tensile Load Stress Cracking (Notch Constant Load Tensle Method) h |
≥300 |
| 10 |
Carbon Black Content(Rang) (%) |
2.0~3.0 |
| 11 |
Carbon Black Dispersion |
There is not more than one grade 3 in 10 data, and grade 4 and grade 5 are not allowed |
| 12 |
Oxidative Induction Time (OIT) |
Standard OIT (min)≥100 |
| High Pressure OIT (min)≥400 |
| 13 |
85℃ thermal aging (Atmospheric Pressure OIT Retention After 90 Day) |
≥55 |
| 14 |
Ultraviolet Irradiation After 1600 Hours, The OIT Retention(%) |
≥50 |
|
Rough geomembrane for urban construction Standard (CJ-T234-2006)
| Specification |
1.00mm |
1.25mm |
1.50mm |
2.00mm |
2.50mm |
3.00mm |
Remark |
| Item |
| Thickness (mm) |
1.00mm |
1.25mm |
1.50mm |
2.00mm |
2.50mm |
3.00mm |
|
| Textured Highth (mm) |
0.25 |
|
| Density (g/c㎡,≥) |
0.94 |
|
| Tensile Properties |
| Yield Strength (N/mm,LD/TD) |
15 |
18 |
22 |
29 |
37 |
44 |
|
| Breaking Strength (N/mm,LD/TD) |
10 |
13 |
16 |
21 |
26 |
32 |
|
| Yeild Elongation Rate (%) |
12 |
|
| Breaking Elongation Rate (%) |
100 |
|
| Rectangular Tear Strength (N) |
125 |
156 |
187 |
249 |
311 |
374 |
|
| Puncture Strength (N) |
267 |
333 |
400 |
534 |
667 |
800 |
|
Environmental Stress Crack Resistance (h)
(A single point of incision constant tensile method) |
300 |
|
| Carbon Black |
| Carbon Black Content(Rang) (%) |
2.0~3.0 |
|
| Carbon Black Dispersion |
Nine of 10 observation area should be grade 1 or grade 2, not more than 1 of grade3 |
|
| Oxidative Induction Time (OIT) |
| Standard OIT (min) |
100 |
|
| High Pressure OIT (min) |
400 |
|
| 85℃ Oven Ageing (Minimum Average) |
| 90 days after baking, the standard OIT retention(%) |
55 |
|
| 90 days after baking, the hight pressure OIT retention(%) |
80 |
|
| The Anti-UV Strength |
| Ultraviolet irradiation after 1600 hours, the standard OIT retention(%) |
50 |
|
| Ultraviolet irradiation after 1600 hours, the high pressure OIT retention(%) |
50 |
|
| -70℃ The Low Temperature Embrittlement Performance mpact |
Pass |
|
| Water Vapor Penetration Coefficient g.cm (cm2.s.Pa) |
≤1.0X10-13 |
|
| Dimensional Stability |
±2 |
|
Jianyi ---Your Professional HDPE Geomembrane Sheet Manufacturer
Jianyi New Material Co.,Ltd, which is the professional manufacturer specialized in R&D, produce, sales and installation of environmentally friendly materials.
We have one advanced imported geomembrane production line, two world-class HDPE geomembrane production lines, and one textured HDPE geomembrane production line. Our capacity of HDPE geomembrane can be 60 metric tons per day.
Jianyi is the largest manufacturer of HDPE geomembrane in Hunan,we are one of the member units of HNWPA.
We have certificated by ISO9001, ISO14001 ISO45001 and CE.
ISO9001:2015 ISO14001:2015 ISO45001:2018 CE:2025
We have about 20 patents, part of them as follows:
Patent for Geotextile Netting Machine/Composite geomat patent/Patent for composite film trimming device ect.
Changsha Jianyi have participated in many large-scale exhibitions abroad, such as Indonsia, Vietam, Russia , India, Philippine, Myanmar, Combodia etc ,our HDPE geomembrane products are deeply loved by exhibitors.
Changsha Jianyi have built a long term cooperation with many famous enterprises:
HDPE Textured Geomembrane Installation Specification
HDPE Geomembrane Installation Specification
(1)Worksite treatment: The laying base should be solid and flat. There should be no roots, rubble, stones, concrete particles, steel bars, glass shards, etc. that may damage the HDPE geomembrane within a vertical depth of 25 mm.
(2)Pave: The outdoor laying construction of HDPE geomembrane should be above 5 °C, and there is no rain or snow-free weather below 4 winds. When laying the geomembrane, the weld seam should be minimized. Under the premise of ensuring the quality, the raw materials should be saved as much as possible, and the quality can be easily ensured.
(3)Measure: measure the size for cutting.
(4)Cutting: Cutting according to actual size needs; the lap width is 10cm~15cm.
(5)Trial welding: Test welding must be performed before the welding work is carried out. The test welding shall be carried out on the sample of the impervious material provided. The length of the sample shall not be less than 1 m and the width shall not be less than 0.2 m. After the test welding was completed, three 2.5 cm wide test pieces were cut to test the tear strength and the weld shear strength.
(6)Welding: The geomembrane is welded using automatic crawl type double rail welding machine. An extrusion hot-melt welder shall be used where the double rail welding machine can not work. It's matched with the welding rod of the same material with geomembrane.The welding process are as follows: adjusting the pressure, setting the temperature, setting speed, joints inspection, geomembrane loading into the machine, start the motor.There shall be no oil or dust at the joints, and there shall be no debris, condensation, moisture and other debris in the lap joint surface of the geomembrane. Must be cleaned before welding.
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