Frequently Asked Question
Contact Information:
Jason Qian (General Manager)
Phone: +86-15998606917
WhatsApp: +86-15998606917
Email: jason@geofantex.com / info@geofantex.com / geofantex@gmail.com
Please feel free to contact us. Look forward to hearing from you!
Yes, GeoFanTex Geosynthetics has a comprehensive set of packaging and delivery service procedures. Over the past ten years, GeoFanTex Geosynthetics has supplied thousands of containers to regions such as Latin America, North America, Southeast Asia, developed countries, and Africa. We offer packaging options for our products in rolls, pots, bags, sheets, or as per your specific order requirements.
GeoFanTex Geosynthetics provides various payment options to suit your needs, including:
- Bank Transfer: Direct payments can be made to our company’s bank account.
- Credit/Debit Card: We accept payments through all major credit and debit card providers.
- PayPal: A secure option for online payments.
- Letter of Credit: This method is commonly used for larger transactions.
- Escrow: Payment is held by a third party until all agreement terms are fulfilled.
Please let us know which payment method you prefer or if you have any other preferred options.
Certainly, GeoFanTex Geosynthetics products can be customized. Model, size, package, raw materials, and composite products—all can be tailored to your specifications. We welcome special customization requests.
OEM could be accepted by Geofantex Geosynthetics, and we have a lot of practical experience.
Yes, we could issue third-party test reports, like SGS, TRI, etc.
Yes, below 2m2 samples are free.
Yes, the quality of Geofantex Geosynthetics products could meet all the standards according to your requirements.
The increase in length in the gauge length of the test specimen is caused by a tensile load. Elongation at break refers to the elongation corresponding to the maximum load. For geosynthetics, elongation percent is the increase in length of a specimen expressed as a percentage of the original gauge length (i.e., engineering strain).
For a geotextile, the volumetric flow rate of water per unit cross-sectional area, per unit head, under laminar flow conditions, is measured in the normal direction through the fabric.
The term used to describe the property of a material to conduct a fluid or vapor through a porous medium, such as soil or geotextiles, is hydraulic conductivity. This property is directly related to the thickness of the material.
Generally, a 300 mm longitudinal overlap is sufficient, while 600 mm is recommended for transverse joints. The panels can also be sewn or glued using a heat source, such as a propane torch or a hot air gun.
Geotextiles are synthetic fabrics used in various civil engineering and construction applications to improve soil stability, drainage, and separation. Their primary functions include:
- Separation: Geotextiles prevent the mixing of different soil layers, such as separating aggregate from soil, to maintain the integrity of each layer.
- Filtration: They allow water to pass through while retaining soil particles, thus preventing clogging and maintaining proper drainage.
- Reinforcement: Geotextiles provide additional strength to soil and other materials, enhancing the stability of structures like embankments and retaining walls.
- Drainage: They facilitate the movement of water away from areas where water accumulation can be problematic, reducing hydrostatic pressure and potential damage.
- Erosion Control: Geotextiles help prevent soil erosion by stabilizing the soil and promoting vegetation growth.
By performing these functions, geotextiles contribute to the durability and effectiveness of construction and landscaping projects.
Woven geotextiles are a cost-effective solution for providing separation and enhancing the strength of granular structures. Composite geotextiles also have the advantage of filtering fine particles, making them highly effective when in contact with fine soil.
Absolutely. If two soils have different particle sizes, a geotextile separator will prevent contamination between them and significantly extend the life of the structure.
Polymer fibers contain inhibitors to protect them from the harmful effects of UV rays, but this resistance is not absolute. GeoFanTex Geosynthetics certifies that geotextiles will retain at least 70% of their mechanical properties after 500 hours of UV exposure.
Woven geotextiles are planar textile structures created by interlacing two or more sets of yarns, which pass each other, typically at right angles, with one set of yarns running parallel to the fabric axis.
Nonwoven geotextiles are planar and essentially random textile structures produced by bonding or interlocking fibers, or a combination of both, achieved through mechanical, chemical, thermal, or solvent methods, or combinations thereof.
The cross-machine direction is perpendicular to the long, machine, or manufactured direction (also known as the weft direction in woven geotextiles). The machine direction, in textiles, refers to the direction in a machine-made fabric that is parallel to the movement of the fabric during the manufacturing process (also known as the lengthwise or long direction, and the warp direction in woven geotextiles).
A monofilament yarn is a single, continuous strand. In contrast, a multifilament yarn is made up of many continuous filaments or strands.
The key characteristics of a protective geotextile are its areal mass, thickness, and resistance to puncturing.
Biaxial geogrids generally offer equal resistance in both the roll direction and the cross direction, allowing them to be installed in either direction. In contrast, uniaxial geogrids must be installed with tensile loads applied along the roll length.
Ideally, the biaxial geogrid should be placed at the base of the area to be reinforced to achieve maximum particle imbrication. Therefore, the biaxial geogrid is positioned directly under the compacted layer.
Uniaxial geogrids have their main strength in the direction of reinforcement along the machine, while biaxial geogrids have equal strength in both the cross and machine directions.
No, Woven geotextiles and geocells are highly efficient as well.
Sand does work with the Geocell system; this was confirmed by its use by the US Army Corps of Engineers when the system was initially designed. Typically, sand is employed as an infill material for sub-base reinforcement, such as in the foundations for patios and sheds.
We do not recommend pea gravel due to its poor compaction properties. Smooth, rounded stones do not compact well and tend to shift inside the cell, regardless of how much you compact the surface.
Yes, we strongly recommend placing a geotextile fabric beneath Geocell to prevent your material (rock) from being pushed into the ground. You can purchase our pre-cut geotextile fabric, specifically sized for Geocell panels, here.
With proper installation and infill material, Geocell is designed to control erosion and stabilize existing slope profiles, even on slopes as steep as 1:1. Depending on site specifics, it is recommended to secure the panels into the subgrade when slopes exceed a 3:1 incline (33%). As with base or flat applications, it is best practice to ensure that the subgrade on which the panels will be installed is a smooth, even surface with any existing ruts repaired.
GeofanCell is constructed from high-density polyethylene (HDPE) plastic and is ultrasonically welded to create a flexible yet durable system for holding your material.
The general rule of thumb is that the size of your rock should not exceed 1/3 of the cell height. For example, with a 6″ cell height, no rock larger than 2″ should be used. It is best to use crushed, angular rock with a mixture of fines to achieve good compaction and drainage. For smaller sizes of 4″ or less, we recommend using rock sized between 3/8″ and 1″.
Unlike “washed” or “clean” stone, crushed “unwashed” aggregate contains fines, which help fill in the voids between the rock pieces, resulting in a compacted, solid base.
You will need enough material to fill the cells plus an additional 1-2 inches of overfill. Each panel covers approximately 230 square feet, with cell heights varying from 2″ to 8″, depending on your product. Check out our estimated material quantity breakdown here, and contact your local aggregate supply company for cost estimates.
Of course! It is highly encouraged to use local, onsite material if it is suitable. Using a mix of medium and fines will result in greater compaction. If you already have the right material on hand, simply scoop it up and place it back inside the panels once they are installed.
GeofanCell can be trimmed to your desired dimensions using a box cutter or a similar tool.
The expected lifetime of GeofanCell is over 60 years.
The possibilities are endless for what Geocell can do with your material, although using clays inside Geocell is not advisable due to their water absorption properties. Below are recommendations for infill materials to achieve the best results with the product:
- Aggregate/Gravel: Crushed, angular rock with a mix of fines (also referred to as “unwashed”) typically compacts well.
- Decomposed Granite: Ideal for flagstone patios and trails.
- Grass/Vegetation: A pre-mixed aggregate/topsoil infill is recommended.
- Sand: Strongly recommended for sub-base/foundation use only.
The ADA compliance of geocells depends on the type of infill material used to fill the panels.
We recommend staking the panels to keep them open while filling. Once GeofanCell is filled, the stakes can be removed.
We recommend leveling and compacting the area where you will install GeofanCell, as it will conform to the shape of the subgrade. Any potholes, swells, or ruts in the area will be reflected in the GeofanCell.
You can install the product yourself using our installation guide. However, if you prefer, any contractor specializing in earthwork or landscaping can easily handle the installation.
Some of the common uses for geomembranes are as follows:
Agriculture, canals, coal ash systems, evaporation ponds, green roofing, floating covers, heap leach mining, oilfields, potable water, decorative ponds, process water, remediation, secondary containment, tank liners, temporary covers, wastewater lagoons, and landfill covers.
Geomembranes are composed of continuous sheets of material that can be customized to the size of your project. If a connected liner is required, the seams are heat-sealed for secure joining. The liners can be manufactured from various materials depending on the specific application. At Geofantex Geosynthetics, we take great pride in delivering top-quality geomembrane systems, with a key focus on maintaining stringent quality control.
Yes, certain types of geomembranes are sufficiently flexible to be welded at the factory and then shipped folded or rolled on a pallet.
Geofantex Geosynthetics provides two types of geomembranes to meet your needs, which include:
HDPE Geomembrane and LLDPE Geomembrane.
While index testing and fabrication consistency are crucial, the true test of a liner’s performance lies in actual field conditions. Different seaming techniques, applied to both exposed and buried test plots, are evaluated against a range of technical performance criteria. Moreover, the in-house laboratory at Geofantex Geosynthetics continuously conducts tests in various areas, including load-bearing capacity, UV stability, friction properties, and aquatic research.
Yes. While many companies merely verify the accuracy of their equipment settings, the team at Geofantex Geosynthetics goes further by conducting destructive seam tests on every liner that leaves our facility. To achieve optimal geomembrane performance, Geofantex Geosynthetics employs an independently-designed statistical process control sampling method as part of its in-house quality control program, ensuring the highest industry standards.
A geomembrane is waterproof, while a geotextile is permeable. The primary purpose of a geomembrane is to provide waterproofing, whereas a geotextile is utilized for soil separation and filtration.
It’s not ideal, but it is possible. It is essential to ensure compliance with the maximum inclination of the geomembrane, the grain size of the subgrade and the embankment, and especially to make sure the geomembrane is backfilled before hydration.
Some high-end geomembranes are specially engineered for this type of application. If the risk is low, polyethylene offers an economically attractive option. Regular PVC should be avoided.
Geocomposites are primarily employed in roadways for functions such as separation, drainage, filtration, and reinforcement. They can also be utilized to enhance the strength and durability of the underlying soil in a roadway.
Geocomposite drainage systems are designed to complement or replace sand, stone, and gravel for functions such as drainage, filtration, separation, and barrier protection. To ensure their effectiveness and long-term performance, careful selection of the appropriate geocomposite material is essential.
A geocomposite is made by combining one or more geosynthetics—such as a geogrid, geotextile, geomembrane, and/or geonet—with another material. Geotextiles are mainly used in applications that require separation, filtration, reinforcement, and drainage.
Yes, the cables are embedded in the blocks during the casting process. Therefore, it is possible to cut the cables without compromising the integrity of the system.
No, to prevent damage, the geocells must be filled and backfilled with an excess of granular material.
Using t3 fasteners specifically designed to ensure optimal load transfer between sections, without any overlap!
Yes, this is commonly done for the protection of bridge piers or riverbanks.
A type 316 stainless steel or polyester.
Yes, this not only reduces the coefficient of friction between the water and the blocks but also adds weight, which enhances the stability of the system.
They are completely permeable and do not resist the movement of water within the soil.
Around 60°. It’s also crucial to consider the wall’s orientation. A north-facing wall will be more challenging to green.
Yes, we are modifying the components of our permanent walls to lower the structure’s cost. For instance, we replace galvanized wire mesh covered with PVC with raw steel, which has a significantly shorter lifespan.
Approximately 75% of the wall’s height, depending on the type of façade and the load on the wall or slope.
Get Free Sample
We’ll respond as soon as possible(within 12 hours)