Geomembrane Product Features
- Raw Material: HDPE/PP
- Tensile Strength: 50-100 kN/m for HDPE, 80-260 kN/m for PP
- Elongation: ≤11.5% for HDPE, ≤10.0% for PP
- Standard: JT/T 1432.1, ASTM, ISO...
- Delivery Time: Have stock.
- Packaging: 50-100 m/roll, can be customized.
- Free Samples: Available.
- MOQ: Trial or bulk orders are acceptable.
Uniaxial Tensile Geogrid
Uniaxial tensile geogrids are mainly used for reinforcement in civil engineering projects, and primarily bear tress in longitudinal direction.
Uniaxial tensile geogrids are reinforced geosynthetic materials with a regular mesh structure, made primarily of HDPE or PP through a specific stretching process. They possess extremely high uniaxial tensile strength and low elongation, making them an ideal choice for reinforced soil retaining walls, steep slope reinforcement, and bridge abutment backfilling.
Unlike biaxial tensile geogrids, the molecular chains of uniaxial geogrids are oriented and concentrated in the direction of stress, giving them superior load-bearing capacity in that direction, while the lateral direction serves only as a connecting element. This design perfectly meets the mechanical requirements of uniaxial stress scenarios such as retaining structures. Our products can be manufactured according to GB/T, ASTM, ISO, and other standards, and all raw materials are pure new resin.
Production Process: Punching and stretching method, stretching injection molding connection and welding connection method.
The punching and stretching process mainly includes sheet extrusion, punching, longitudinal heating and stretching, and cooling and shaping.
The stretching injection molding process mainly involves preparing longitudinal plastic strips and stretching them, then pulling multiple longitudinal strips side by side to the mold according to the design spacing, and injection molding to produce transverse ribs.
Quality Control: The entire production process is monitored by automation. Strict factory inspections are conducted, to ensure that key quality control points fully comply with the standards.
After-sales Service: We have over one million square meters of construction experience, and our team can provide on-site construction services. We also offer remote technical guidance to assist with welding and construction.
Advantages
- High uniaxial tensile strength: HDPE series could be 50kN/m～200kN/m, PP series could be 80kN/m～260kN/m.
- Excellent deformation control capability: It can function effectively even with small deformations, effectively controlling soil displacement.
- UV protection and aging resistance
- High coefficient of friction between the interface and the soil results in a significant reinforcement effect.
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Specification for Uniaxial Tensile Geogrid (HDPE)
JT/T 1432.1-2022
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|||||||
| No. |
纵向抗拉强度 Tensile Strength(MD) kN/m |
50 | 80 | 120 | 160 | 180 | 200 |
| 1 |
单位面积质量 Mass per Unit Area g/m² |
≥250 | ≥350 | ≥500 | ≥650 | ≥750 | ≥850 |
| 2 |
内孔尺寸 Hole Size mm |
A≤320, 12≤B≤30 | |||||
| 3 |
横肋宽度 Rib Width mm |
≥16 | |||||
| 4 |
幅宽偏差 Width Deviation % |
+1 | |||||
| 5 |
纵向标称抗拉强度 Tensile Strength(MD) kN/m |
≥50 | ≥80 | ≥120 | ≥160 | ≥180 | ≥200 |
| 6 |
纵向2%伸长率时的拉伸强度 Tensile Strength under 2% Elongation(MD) kN/m |
≥12 | ≥21 | ≥33 | ≥47 | ≥52 | ≥57 |
| 7 |
纵向5%伸长率时的拉伸强度 Tensile Strength under 5% Elongation(MD) kN/m |
≥23 | ≥40 | ≥65 | ≥93 | ≥103 | ≥113 |
| 8 |
纵向标称伸长率 Elongation(MD) % |
≤11.5 | |||||
| 9 |
炭黑含量与分布 Carbon Black Content and Dispersibility |
Carbon black content ≥2.0%, ash content ≤1.0%, carbon black distribution should be uniform, and the apparent dispersibility grade should not be lower than B. | |||||
| 10 |
蠕变折减系数 Creep Reduction Factor |
≤3.0 | |||||
| 11 |
抗紫外线强度保持率 UV Resistance Standard OIT- % retained % |
≥90 | |||||
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Specificaiton for Uniaxial Tensile Geogrid (PP)
JT/T 1432.1-2022
|
||||||
| No. |
纵向抗拉强度 Tensile Strength(MD) kN/m |
80 | 120 | 160 | 200 | 260 |
| 1 |
单位面积质量 Mass per Unit Area g/m² |
≥250 | ≥350 | ≥450 | ≥550 | ≥700 |
| 2 |
内孔尺寸 Hole Size mm |
A≤450, B≤30 | ||||
| 3 |
横肋宽度 Rib Width mm |
≥16 | ||||
| 4 |
幅宽偏差 Width Deviation % |
+1 | ||||
| 5 |
纵向标称抗拉强度 Tensile Strength(MD) kN/m |
≥80 | ≥120 | ≥160 | ≥200 | ≥260 |
| 6 |
纵向2%伸长率时的拉伸强度 Tensile Strength under 2% Elongation(MD) kN/m |
≥28 | ≥42 | ≥56 | ≥70 | ≥91 |
| 7 |
纵向5%伸长率时的拉伸强度 Tensile Strength under 5% Elongation(MD) kN/m |
≥56 | ≥84 | ≥112 | ≥140 | ≥182 |
| 8 |
纵向标称伸长率 Elongation(MD) % |
≤10.0 | ||||
| 9 |
炭黑含量与分布 Carbon Black Content and Dispersibility |
Carbon black content ≥2.0%, ash content ≤1.0%, carbon black distribution should be uniform, and the apparent dispersibility grade should not be lower than B. | ||||
| 11 |
抗紫外线强度保持率 UV Resistance Standard OIT- % retained % |
≥90 | ||||
- Reinforced Soil Retaining Walls：
- This is the core application scenario for uniaxial geogrids. The geogrid is laid in layers within the retaining wall fill, with one end connected to the wall panel and the other end embedded in the stabilizing soil. The tensile strength of the geogrid holds the retaining wall in place, resisting earth pressure. This forms a composite reinforced soil structure, significantly improving the stability of the retaining wall. It has shown remarkable effects in reinforced soil retaining walls for mountain highways, bridge abutments for high-fill embankments in urban areas, and reinforced retaining walls for railway subgrades.
- Steep Slope Reinforcement：
- For steep slopes with a gradient greater than 1:1, layered uniaxial geogrid laying can effectively prevent slope slippage.
- Soft Soil Foundation Treatment：
- When constructing embankments on soft soil foundations, laying the bottom layer of uniaxial geogrid can restrain lateral extrusion and improve bearing capacity.
- Bridge Abutment and Culvert Connections：
- Laying uniaxial geogrid in the backfill of bridge abutments and the top fill of culverts can reduce differential settlement and prevent "bridge approach slab settlement.
- Landfill Slope Stability:
- In landfill closure and covering systems, unidirectional geogrids are used to reinforce the final cover soil layer.
