Thermofused Geotextile is a premium nonwoven geosynthetic manufactured using a thermal fusion process that creates a uniform, high-strength fabric with excellent filtration, separation, protection, and drainage performance. It is widely used in transportation infrastructure, environmental engineering, waterproofing systems, and soil stabilization projects.
Thermal Bonded Geotextile is a high-performance nonwoven geosynthetic manufactured through a thermal bonding process that enhances its mechanical strength, dimensional stability, and filtration performance. It is widely used in civil engineering, transportation, drainage, erosion control, and soil stabilization applications where durability, separation, and filtration are essential.
Nonwoven Geotextile is a high-performance geosynthetic fabric designed for filtration, drainage, separation, and protection in roads, railways, landfills, tunnels, drainage systems, and environmental engineering projects.
Woven Geotextile provides superior soil reinforcement, separation, and stabilization with high tensile strength, excellent durability, and long-lasting performance for civil engineering and infrastructure projects.
In simple terms, geotextiles are specialized engineered fabrics manufactured from synthetic polymer fibers such as polypropylene (PP) or polyester (PET). These materials are lightweight, flexible, and highly durable, making them an essential component in a wide range of civil engineering and construction applications.
Advancements in engineering technology have transformed every aspect of modern construction, and the geosynthetics industry is no exception. Among the most widely used geosynthetic products,geotextiles have become an indispensable solution for improving the performance, durability, and longevity of infrastructure projects.
Geotextiles are extensively used across civil engineering, environmental protection, agriculture, mining, and the oil and gas industries. Manufactured from high-strength synthetic fibers, these engineered fabrics provide exceptional durability, cost efficiency, and long-term performance.
Their unique structure enables them to perform several critical engineering functions, including separation, filtration, drainage, reinforcement, and protection. By improving soil stability and protecting structures from external factors such as water infiltration, erosion, excessive loading, and environmental stresses, geotextiles contribute significantly to the reliability and service life of infrastructure.
The term Geotextile is derived from the words "Geo", meaning earth, and "Textile", meaning fabric.
A geotextile is a permeable geosynthetic material specifically engineered for civil and geotechnical engineering applications. Manufactured primarily from polypropylene (PP) or polyester (PET) fibers, geotextiles are supplied in woven and nonwoven forms to meet different engineering requirements.
These engineered fabrics are designed to improve soil performance while performing one or more essential functions such as separation, filtration, drainage, reinforcement, and protection. Their excellent mechanical strength and hydraulic properties make them an integral component of modern infrastructure systems.
A geotextile liner is a durable permeable layer manufactured from high-performance polypropylene or polyester fibers for use in civil engineering and environmental applications.
Available in various thicknesses and weights, geotextile liners provide an excellent combination of tensile strength, permeability, puncture resistance, and long-term durability under demanding site conditions.
These materials are widely used for subgrade stabilization, drainage systems, erosion control, geomembrane protection, and numerous other geotechnical applications.
If you are looking for high-quality geotextile products, Geo Khanjani is your trusted partner.
With more than two decades of experience in importing, manufacturing, and supplying geosynthetic materials, we provide premium-quality geotextiles that comply with international engineering standards.
Our geotextiles are specifically designed for soil reinforcement, separation, filtration, drainage, erosion control, and infrastructure stabilization, ensuring exceptional durability and long-term project performance.
By purchasing directly from Geo Khanjani, customers benefit from competitive pricing, technical support, and reliable product quality without intermediary costs.
Geotextile fabric—also known as ground fabric, filter fabric, synthetic felt, geotextile felt, construction fabric, geofabric, drainage fabric, or geomembrane protection fabric—is one of the most versatile geosynthetic products used in modern infrastructure projects.
Manufactured from polypropylene or polyester fibers, geotextile fabrics combine high mechanical strength with excellent hydraulic performance. They significantly improve the stability of foundations while reducing construction and maintenance costs over the long term.
In simple terms, geotextiles perform two primary engineering functions:
Geotextiles allow water to pass freely while retaining soil particles. This filtration capability prevents soil migration, maintains drainage efficiency, and reduces erosion
Because of these properties, filtration is one of the most common applications of geotextiles in civil engineering and infrastructure projects.
Geotextiles improve the mechanical performance of soil by increasing tensile strength and reducing deformation.
They enhance the stability of embankments, foundations, pavements, retaining structures, and other engineered systems while minimizing settlement and structural failure.
Before the introduction of geotextiles, engineers relied primarily on natural materials such as gravel, sand, clay, and vegetation for drainage, erosion control, and soil stabilization.
Although these traditional materials provided limited improvement, they often lacked durability, consistency, and long-term performance. They were also more susceptible to erosion, water damage, and environmental degradation.
The development of geotextile technology revolutionized geotechnical engineering by providing a lightweight, durable, and highly efficient solution that significantly improves construction quality while reducing project costs and installation time.
Geotextiles are generally classified into two primary categories:
From a manufacturing perspective, geotextiles can be further categorized into several product types designed for specific engineering applications.
The price of geotextiles varies depending on several factors, including:
Because raw material costs and market conditions fluctuate, current pricing should be obtained directly from the supplier based on the required specifications and purchase volume.
Nonwoven geotextiles are manufactured from continuous filaments or staple fibers that are mechanically, thermally, chemically, or needle-punched bonded together to form a durable and permeable fabric.
Unlike woven geotextiles, nonwoven products do not have a regular weave pattern. Instead, the randomly distributed fibers create a felt-like structure that offers excellent filtration, drainage, protection, and separation properties.
Needle-punched nonwoven geotextiles typically have a thickness ranging from approximately 0.5 mm to 1 mm, while thermally or chemically bonded products may be manufactured in greater thicknesses depending on the intended application.
Thanks to their high puncture resistance, flexibility, and permeability, nonwoven geotextiles are widely used in road construction, drainage systems, erosion control, landfill engineering, geomembrane protection, and environmental projects.
Nonwoven geotextiles are among the most widely used geosynthetic products due to their versatility and cost-effectiveness.
Manufactured primarily from polypropylene (PP) fibers—or a combination of polypropylene and polyester (PET)—these materials are produced through thermal bonding, needle punching, or other mechanical bonding processes to create a durable felt-like fabric.
Pricing depends on several technical factors, including:
For accurate pricing, customers should provide the required project specifications and installation area.
Knitted geotextiles are manufactured by interlocking loops of synthetic fibers in a process similar to textile knitting.
This manufacturing technique creates a flexible yet strong geotextile suitable for specialized reinforcement applications where high deformation capacity and flexibility are required.
Although less common than woven or nonwoven geotextiles, knitted products are used in selected geotechnical and structural engineering projects.
Spunbond technology is one of the most efficient manufacturing processes for producing nonwoven geotextiles.
During production, continuous polymer filaments are extruded, laid into a uniform web, and then thermally bonded to create a strong and homogeneous fabric.
Spunbond geotextiles offer excellent mechanical strength, dimensional stability, permeability, and durability, making them suitable for filtration, drainage, separation, and protective applications.
Rope-woven geotextiles are produced by weaving three or more synthetic yarns diagonally to create an interlaced structure with enhanced tensile strength.
Their structural characteristics are similar to conventional woven geotextiles but provide additional reinforcement in applications requiring higher mechanical performance.
These products are commonly used in heavy-duty stabilization and reinforcement projects.
Geotextile sheets are widely utilized in geotechnical engineering as high-performance materials for a variety of infrastructure applications.
They are commonly installed in:
The primary engineering functions of geotextile sheets include:
These functions significantly improve the stability, durability, and long-term performance of civil engineering structures.
High-quality geotextiles provide numerous mechanical and hydraulic properties essential for modern infrastructure projects, including:
Geotextiles are available in a wide range of fabric weights, typically ranging from 100 g/m² to 2,000 g/m², depending on project requirements.
Because their performance characteristics vary with weight and manufacturing method, the selection of an appropriate product should be based on engineering specifications.
One of the most common applications of geotextiles is beneath geomembrane liners in agricultural reservoirs, irrigation ponds, fish farms, and artificial lakes.
In these applications, the geotextile is installed beneath the geomembrane to act as a protective cushion, preventing punctures caused by stones or irregular subgrades while extending the service life of the geomembrane.
Geotextiles are also widely used in asphalt pavement reinforcement, where they reduce reflective cracking and increase pavement durability.
Additional applications include:
Typical technical specifications include:
| Property | Typical Range |
| ---------------------- | ------------------------------------------------------------------------------ |
| Mass per Unit Area | 100–2000 g/m² |
| Thickness | 0.2–10 mm |
| Roll Width | 1–6 m |
| Fabric Type | Woven / Nonwoven / Knitted |
| Tensile Strength | 20–200 kN/m |
| Temperature Resistance | Up to 150°C |
| Weather Resistance | Excellent (Low degradation under UV exposure when properly protected) |
| Main Applications | Civil Engineering, Environmental Projects, Road Construction, Drainage Systems |
A properly prepared subbase is one of the most important factors in ensuring the long-term performance of artificial turf installations.
Installing a geotextile beneath artificial grass helps:
This makes geotextiles an essential component in sports fields, landscaping, playgrounds, and commercial green spaces.
The cost of geotextiles used beneath artificial grass depends on several technical specifications, including:
For most artificial turf installations, 200–500 g/m² nonwoven geotextiles are recommended due to their excellent balance of drainage performance, durability, and cost efficiency.
For the latest pricing and product recommendations, it is advisable to consult a trusted geosynthetics supplier.
In agricultural reservoirs, irrigation ponds, fish farms, and artificial lakes, protecting the geomembrane liner from mechanical damage is essential for ensuring long-term waterproofing performance.
For this reason, a protective pond geotextile is installed beneath or above the geomembrane liner.
Depending on the market, this product may also be referred to as:
The geotextile acts as a cushioning layer that absorbs concentrated stresses caused by stones, uneven subgrades, or external loads, significantly reducing the risk of punctures and extending the service life of the geomembrane.
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Installing a protective geotextile beneath geomembranes offers numerous engineering advantages, including:
For these reasons, geotextiles have become a standard component in modern pond and reservoir construction.
# 300 GSM Geotextile
One of the most widely used products in the geosynthetics market is the 300 GSM nonwoven geotextile.
Its excellent balance between mechanical strength, permeability, flexibility, and affordability makes it suitable for numerous civil engineering applications, including:
Because of its versatility, 300 GSM geotextile is considered one of the most economical and practical choices for general infrastructure projects.
500 GSM Geotextile
For projects requiring greater puncture resistance, higher tensile strength, and enhanced protection, 500 GSM nonwoven geotextiles are the preferred solution.
Typical applications include:
Although 500 GSM products are generally more expensive than lighter grades, their superior durability and mechanical performance often result in lower maintenance costs and longer service life.
# 200 GSM Geotextile
For lighter-duty applications, 200 GSM geotextiles provide an economical and effective solution.
They are commonly used in:
Their lower weight makes them easier to handle and install while still providing reliable filtration and separation performance.
The earliest concepts of geotextile reinforcement can be traced back to ancient civilizations, where natural fabrics and plant fibers were used to stabilize soil and improve road construction.
Modern geotextile technology, however, emerged during the 1950s with the development of synthetic polymers such as polypropylene, polyester, polyethylene, and polyamide.
The Netherlands played a pioneering role in advancing geotextile engineering. Following the devastating North Sea floods of 1953, Dutch engineers utilized synthetic geotextiles as part of the Delta Works Project, one of the world's largest flood protection systems.
Shortly thereafter, geotextiles gained widespread acceptance in the United States and other developed countries for erosion control, road construction, and hydraulic engineering.
Since the 1960s, continuous technological advancements have transformed geotextiles into one of the most important materials used in modern geotechnical engineering.
Although both products belong to the geosynthetics family, they perform fundamentally different engineering functions.
Geomembranes are impermeable polymeric liners manufactured from materials such as HDPE, LLDPE, PVC, EPDM, and other synthetic polymers.
Their primary function is to create a waterproof barrier that prevents the migration of liquids, moisture, gases, and contaminants.
Geomembranes are extensively used in:
Geotextiles are permeable engineered fabrics used primarily for:
Unlike geomembranes, geotextiles allow water to pass while retaining soil particles, making them essential components of drainage systems and soil stabilization projects.
When used together, geotextiles protect geomembranes from puncture damage while simultaneously improving drainage and subgrade stability.
Geotextiles can be installed either as a standalone geosynthetic solution or in combination with geomembranes, depending on the project requirements.
They are most commonly used where the subgrade contains sharp stones, coarse aggregates, or irregular surfaces that could damage the waterproofing layer. In such applications, the geotextile serves as a protective cushion while also providing separation, filtration, and drainage.
Although the installation process is relatively straightforward, proper placement and jointing are essential to ensure long-term performance. Adjacent rolls are typically overlapped or sewn together, depending on the project specifications, while the fabric is carefully laid to avoid wrinkles, folds, or unnecessary tension.
For large-scale civil engineering projects, installation should be carried out by experienced contractors using appropriate equipment to ensure compliance with engineering standards and design specifications.
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While geotextiles provide significant engineering advantages, their performance depends on proper product selection, design, and installation. Like any engineered material, they also have certain limitations that should be considered during project planning.
Some of the main considerations include:
When the appropriate product is selected and installed correctly, these limitations are rarely significant and do not affect long-term performance.
Based on their manufacturing process, geotextiles are generally classified into three main categories:
Each type offers unique mechanical and hydraulic properties suited to different engineering applications.
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Nonwoven geotextiles consist of randomly distributed continuous filaments or staple fibers that are bonded together through needle punching, thermal bonding, chemical bonding, or a combination of these manufacturing techniques.
Their highly interconnected fiber structure provides exceptional puncture resistance, flexibility, permeability, and filtration performance
Compared with woven products, nonwoven geotextiles generally offer greater resistance to puncture because of their thicker and more uniform fiber network.
One common manufacturing process is calendering (thermal pressing), which produces geotextiles with improved mechanical properties suitable for soil filtration applications.
Many modern filtration systems incorporate selectively permeable structures that allow water to pass while retaining fine soil particles. This selective permeability significantly improves drainage efficiency and reduces clogging, making nonwoven geotextiles particularly suitable for roof gardens, drainage systems, retaining walls, and environmental engineering projects.
Woven geotextiles are manufactured by interlacing synthetic yarns in perpendicular warp and weft directions using industrial weaving equipment.
This process produces a highly uniform fabric with excellent tensile strength and dimensional stability.
Woven geotextiles are primarily used where reinforcement is the dominant engineering function, including:
In addition to reinforcement, woven geotextiles also provide separation, filtration, and erosion control in many civil engineering projects.
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Knitted geotextiles are manufactured by interlocking loops of synthetic fibers to create a flexible textile structure.
Depending on the fiber type and manufacturing process, knitted geotextiles may be produced from polyester, polypropylene, or other engineered synthetic materials.
Although less common than woven and nonwoven products, knitted geotextiles are used in specialized applications requiring high flexibility and deformation capacity.
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Geotextile prices vary depending on several technical and commercial factors, including:
geokhanjani manufactures and supplies both woven and nonwoven geotextiles that comply with international quality standards while offering competitive pricing for infrastructure projects of all sizes.
For accurate pricing, customers are encouraged to contact our technical sales team with their project requirements.
Geotextiles are among the most versatile geosynthetic materials available today. Their multifunctional properties make them suitable for a wide range of civil, environmental, hydraulic, transportation, and industrial applications.
Major applications include:
Geotextiles improve the tensile strength of weak soils, reducing settlement while enhancing the stability of embankments, retaining structures, and foundations.
Permeable geotextiles allow water to pass freely while retaining soil particles, making them ideal for:
Geotextiles protect exposed soil surfaces from erosion caused by rainfall, surface runoff, and wind.
They are widely used for:
By preventing the mixing of different soil layers, geotextiles preserve the structural integrity of road bases and foundation systems.
Although geotextiles themselves are permeable, they are commonly installed alongside geomembranes to protect waterproofing liners against puncture damage caused by stones, aggregates, and uneven subgrades.
Road Construction
In pavement systems, geotextiles improve structural performance by:
Slope Stabilization
Geotextiles reinforce soil on steep embankments while minimizing erosion and surface instability.
The use of geotextiles in soil engineering serves two primary purposes: reinforcing soil structures and minimizing erosion.
When incorporated within soil layers, geotextiles improve the mechanical stability of embankments, retaining walls, slopes, and other earth structures. By increasing tensile resistance and reducing lateral soil movement, they enhance structural integrity and extend the service life of infrastructure.
Geotextiles installed on exposed soil surfaces protect against erosion caused by rainfall, runoff, and wind. Acting as a stabilizing layer, they help preserve the soil profile while promoting vegetation growth where required.
Additional applications include flood mitigation, slope stabilization, roadway construction, stormwater management, wastewater infrastructure, and environmental protection systems.
Geotextiles have become one of the most valuable materials in modern geotechnical and civil engineering due to their outstanding mechanical and hydraulic properties.
Manufactured from high-strength synthetic fibers, these engineered fabrics are designed to withstand heavy loads, mechanical stresses, and harsh environmental conditions while maintaining long-term performance.
Their versatility has led to widespread use in projects such as:
By improving soil performance and reducing maintenance requirements, geotextiles significantly decrease construction costs while increasing the durability and lifespan of infrastructure.
Geotextile prices vary depending on product specifications, fabric weight, roll dimensions, and order quantity.
The table below provides a general overview of commonly used products:
Product | Typical Application |
200 GSM Geotextile | Landscaping, roof gardens, light drainage systems, and filtration |
300 GSM Geotextile | Road construction, artificial turf, general civil engineering, and drainage |
500 GSM Geotextile | Agricultural reservoirs, geomembrane protection, heavy civil engineering, and erosion contro |
Geo Khanjani is one of the leading manufacturers and suppliers of premium-quality geotextiles and geosynthetic products in Iran.
With decades of experience in the geosynthetics industry, we provide engineered solutions for infrastructure, environmental, hydraulic, and transportation projects.
Our product portfolio includes both woven and nonwoven geotextiles, manufactured or sourced in accordance with internationally recognized quality standards.
In addition to supplying high-performance materials, we also offer:
Our commitment to quality, competitive pricing, and customer satisfaction has made Geo Khanjani a trusted partner for contractors, consultants, and project owners throughout the region.
If you are looking for premium-quality geotextiles in Tehran, geokhanjani offers a comprehensive range of geosynthetic products supplied directly to contractors, consultants, and infrastructure developers.
With over 20 years of industry experience, we provide reliable products that comply with international quality standards while offering expert technical support throughout every stage of your project.
geokhanjani also supplies geotextiles for construction and infrastructure projects across Isfahan and surrounding regions.
Whether your project involves road construction, drainage systems, geomembrane protection, erosion control, or soil stabilization, our engineering team can recommend the most suitable geotextile solution for your application.
Choosing the right geotextile supplier is just as important as selecting the appropriate product.
geokhanjani offers:
Our experienced team is committed to helping clients select the most efficient and cost-effective geosynthetic solutions for every project.
Geotextiles are among the most versatile and essential geosynthetic materials used in modern civil engineering. Their ability to perform multiple functions—including separation, filtration, drainage, reinforcement, and protection—makes them indispensable in infrastructure, environmental, hydraulic, and transportation projects.
Whether used beneath highways, railways, retaining walls, geomembrane liners, artificial turf systems, or drainage networks, geotextiles significantly improve structural performance, reduce maintenance costs, and extend the service life of engineering works.
By selecting the appropriate geotextile based on project requirements and working with an experienced supplier such as geokhanjani , engineers and contractors can achieve durable, cost-effective, and sustainable construction solutions that meet international standards.
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