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Farsi Version

Geocomposite sheet

A geocomposite is a synthetic material that combines geotextiles with geonets or geomembranes for drainage, filtration, and separation. It is used in applications like landfill liners, road construction, and erosion control. Its design facilitates efficient water management and soil stabilization.

Geocomposite sheets

Our geocomposite sheets are manufactured with precise standards and superior quality to deliver exceptional performance against pressure, moisture, heat, and impact. Featuring unique characteristics and advantages, these sheets provide an ideal solution for geosynthetic engineering projects and, by adhering to reputable international standards, ensure long-lasting durability and reliability.

Farnam Baspar geocomposite sheet specifications

Farnam Baspar’s geocomposite sheets combine HDPE geomembrane with nonwoven geotextile made from polypropylene or polyester to provide enhanced impermeability, mechanical strength, and ease of installation. These products are available in various thicknesses and dimensions, and are known for their waterproof performance, chemical resistance, long service life, and versatility. The following table summarizes the key technical specifications of these geocomposite liners used in agriculture, aquaculture, oil & gas, and landfill applications.

PROPERTYSPECIFICATION
THICKNESS (MM)1, 1.5
LENGTH (M)30–100
WIDTH (M)2.6–2.8, 6.6–8
DENSITY (G/CM³)Not specified
PACKAGING TYPERoll
MATERIAL COMPOSITIONHDPE Geomembrane + Nonwoven Geotextile (PP or PET)
WATER RESISTANCEWaterproof
COLORBlack geomembrane, white geotextile (typical)
WARRANTYProvided
SERVICE LIFELong-term durability
APPLICATIONSAgriculture, fish farming, oil & gas, landfill

Key features and advantages of Farnam Baspar geocomposite sheets

  1. Effective Fluid Barrier:
    The HDPE geomembrane layer provides complete impermeability against water, leachate, and chemicals.
  2. Enhanced Mechanical Strength:
    The integrated geotextile improves tensile strength, tear resistance, and puncture durability.
  3. Faster and Easier Installation:
    Combines two layers in one product, reducing installation time and overall project costs.
  4. High Chemical and UV Resistance:
    Withstands exposure to UV radiation, fertilizers, hydrocarbons, and harsh environmental conditions.
  5. Customizable Dimensions and Thicknesses:
    Suitable for diverse applications such as agriculture, aquaculture, landfills, evaporation ponds, and oil & gas infrastructure.

Farnam Baspar geocomposite sheets standards

Farnam Baspar manufactures its geocomposite sheets in compliance with leading international and national standards to ensure durability, safety, and superior performance in critical applications. The key applicable standards include:

  1. GRI-GM13 – Specification for HDPE geomembranes
  2. GRI-GM17 – Specification for LLDPE geomembranes
  3. ASTM D6693 – Tensile properties testing
  4. ASTM D5199 – Thickness measurement
  5. ASTM D1004 / D4833 – Tear and puncture resistance
  6. ASTM D4355 – UV resistance for geotextiles
  7. INSO 15582 – Iranian national standard for HDPE geomembranes
  8. ISO 9001:2015 – Quality management system
  9. ISO 14001:2018 – Environmental management
  10. ISO 17025 – Laboratory competence and testing accuracy

Geocomposite sheets price

The cost of geocomposite sheets per square foot can vary widely depending on several factors, such as the type, size, and quality, as well as the location and supplier.

To obtain an accurate price for a particular type and size of geocomposite sheet, it is best to contact a supplier or manufacturer directly. They can provide you with a quote based on your

Customers using Farnam Baspar geocomposite sheets

Farnam Baspar’s geocomposite sheets are widely used by customers across multiple sectors due to their superior impermeability, mechanical strength, chemical resistance, and ease of installation. Key customer groups include:

  1. Landfill and Environmental Engineering Companies
    • For leachate containment and groundwater protection
  2. Oil, Gas, and Petrochemical Industries
    • In evaporation ponds, chemical storage basins, and spill containment systems
  3. Aquaculture and Fisheries
    • For lining fish/shrimp ponds
  4. Agricultural Projects and Water Management
    • In irrigation canals, farm reservoirs, and soil moisture conservation
  5. Industrial and Construction Firms
    • For foundation waterproofing, tank lining, and contaminated site barriers
  6. Mining Companies
    • For containment of tailings, process water, and hazardous waste

Why choosing Farnam Baspar?

Farnam Baspar Company, with 22 years of experience in the automotive parts and geosynthetic products industry, is the leading geocomposite manufacturer in Iran. The company produces these products with high surface quality and excellent mechanical properties, including resistance to cold, heat, moisture, and impact. Committed to quality, Farnam Baspar carefully selects appropriate raw materials, enabling it to meet the GRI GM13 standard as well as national standards. This dedication allows the company to comply with any standards desired by customers. Known for its technical expertise and customer satisfaction, Farnam Baspar has established itself as a trusted name in the geosynthetic materials industry, making it the preferred choice across various sectors.

  1. Compliance with International Standards
    Including GRI-GM13, ASTM, DIN, and Iranian National Standards (INSO)
  2. Diverse Product Range
    Offering HDPE & LLDPE geomembranes, geocomposites, geotextiles, and custom welding rods
  3. Advanced Quality Control & In-House Laboratory
    ISO 17025-certified lab with modern testing capabilities
  4. Customized Production
    Tailored thicknesses, widths, colors, and surface textures for project-specific needs
  5. Technical Support & Professional Installation Services
    Including field training, on-site supervision, and application consultation

 

Frequently asked questions

How strong are geocomposite sheets?

Geocomposite sheets are typically made by combining two or more geosynthetic materials to create a single product with enhanced properties. Their tensile strength can range from 3 kN/m to 50 kN/m, depending on the materials used and the manufacturing process.

When should geocomposite sheets be used?

Here are some examples of when geocomposite sheets may be used:

  1. draining
  2. soil stabilization
  3. environmental protection
  4. erosion control
  5. agricultural needs
  6. construction protection

How are geocomposite sheets installed?

The installation of geocomposite sheets can vary depending on the specific application and site conditions. Here are some general steps for installing them:

  1. Site preparation: The site should be cleared of any debris and graded to the desired slope.
  2. Subgrade preparation: The subgrade should be compacted to the desired level and slope.
  3. Geocomposite placement: The geocomposite sheets should be unrolled and placed on the prepared subgrade. The sheets should be overlapped and secured using a suitable adhesive or mechanical fastening system.
  4. Cover soil placement: A layer of cover soil should be placed over the geocomposite to protect it from damage and to provide additional stability.
  5. Compaction: The cover soil should be compacted to the desired density.
  6. Testing: The geocomposite installation should be tested according to the applicable standards and specifications to ensure that it meets the desired performance criteria.

How do I choose the right geocomposite for my project?

Selecting the right geocomposite for a project depends on the intended application, geotechnical conditions, and design requirements. In general, several key factors should be considered:

  1. Required Function:
    • For applications where the primary goal is soil reinforcement combined with separation or filtration, a geogrid–geotextile geocomposite is the appropriate choice.
    • For applications requiring barrier performance and resistance to fluid migration, a geotextile–geomembrane geocomposite is recommended.
    • For projects that demand drainage and filtration simultaneously (such as behind retaining walls or beneath roadways), a geonet–geotextile geocomposite provides the best performance.
  2. Geotechnical and Environmental Conditions:

The geocomposite must be evaluated for chemical and mechanical resistance under site-specific soil conditions, applied loads, and environmental factors such as moisture, temperature fluctuations, and UV exposure.

  1. Mechanical and Hydraulic Properties:

Critical parameters such as tensile strength, permeability, drainage capacity, and long-term creep resistance should be matched to project requirements.

  1. Compatibility with Surrounding Materials:

The geocomposite should be compatible with the surrounding soil or aggregates to ensure effective filtration, separation, or barrier performance.

  1. Standards and Design Codes:

Final selection should comply with recognized international standards (e.g., ASTM, ISO, EN) and be based on project-specific geotechnical design analyses.

Ultimately, geocomposite selection should be made in consultation with geotechnical engineers and geosynthetics specialists to ensure both technical efficiency and cost-effectiveness.

What is the lead time for ordering geocomposite?

The lead time for supplying geocomposites depends on several factors:

  1. Stock Availability:

Common geocomposites (such as geogrid–geotextile or geonet–geotextile) may be available in stock, allowing delivery within just a few business days.

  1. Custom Manufacturing:

For geocomposites requiring special specifications—such as specific tensile strength, non-standard geotextile thickness, or specialized geomembrane types—production must be customized. In such cases, lead times typically range from 3 to 6 weeks.

  1. Order Volume:

Large-scale orders may require additional time for production planning and logistics coordination.

  1. Transportation and Export Conditions:

For international projects, sea or land freight and customs clearance may extend the overall delivery schedule.

In general, it is strongly recommended that owners and contractors place geocomposite orders several weeks ahead of the planned installation date to avoid potential delays.

Do you offer a warranty on geocomposite?

Yes, Farnam Baspar’s geocomposites are supplied with a manufacturer’s quality warranty, reflecting our commitment to using premium raw materials and manufacturing in compliance with international standards.

  1. Manufacturer’s Warranty:

Geocomposites are guaranteed for the quality of their constituent layers (geotextile, geogrid, geomembrane, or geonet) as well as the integrity of the bonding between them.

  1. Warranty Duration:

Depending on the type of geocomposite and project conditions, the warranty period typically ranges from 5 to 10 years.

  1. Warranty Coverage:

The warranty covers freedom from manufacturing defects, retention of key mechanical properties, resistance to premature degradation, and durability under normal environmental conditions.

Issues resulting from improper installation or unsuitable site practices are not covered under the manufacturer’s warranty.

  1. Standards Compliance:

All geocomposites are produced and tested in accordance with recognized international standards such as ASTM, ISO, and EN, ensuring long-term product reliability.

In summary, Farnam Baspar’s warranty on geocomposites is focused on material quality, manufacturing integrity, and long-term performance, providing confidence and assurance to owners and contractors alike.\

Are your geocomposite resistant to chemicals?

Yes, Farnam Baspar’s geocomposites are engineered to provide high resistance against a wide range of chemical and environmental agents.

  1. Resistance of Constituent Layers:
    • Geotextile layers (typically polypropylene or polyester) are resistant to most acids, alkalis, and salts commonly found in soils.
    • Geogrid layers (made of polyethylene, polypropylene, or polyester) provide strong chemical and mechanical stability under conventional soil and environmental conditions.
    • Geomembrane layers offer excellent resistance to aggressive chemicals and hydrocarbons.
    • Geonet layers (commonly HDPE-based) exhibit long-term stability against a broad spectrum of chemical compounds.
  2. Use in Aggressive Environments:

Geocomposites are suitable for applications such as landfills, industrial containment, drainage systems, and reinforced soil structures, where exposure to chemical compounds is expected.

  1. Limitations:

For continuous long-term contact with highly aggressive organic solvents or specific chemicals, a chemical compatibility assessment is recommended.

  1. Standards and Testing:

Chemical resistance of geocomposites is evaluated according to international standards such as ASTM D543 and ISO 13434, ensuring long-term durability and performance.

Overall, Farnam Baspar’s geocomposites provide reliable chemical and environmental stability across a wide range of geotechnical and environmental engineering projects.

How long do Farnam Baspar’s geocomposite last?

Farnam Baspar’s geocomposites are manufactured from premium raw materials and designed in compliance with international standards, ensuring a long design life.

  1. Design Life:

Depending on the type of geocomposite and project conditions, these products can perform reliably for over 50 to 120 years.

  1. Environmental Durability:

The constituent layers (geotextile, geogrid, geomembrane, and geonet) are selected to provide long-term resistance to chemical degradation, temperature variations, moisture, and UV exposure.

  1. Use in Infrastructure Projects:

Geocomposites are engineered for applications such as landfills, subsurface drainage, containment systems, retaining walls, and embankment reinforcement, ensuring stable performance throughout the entire service life of the structure.

  1. Standards and Testing:

Service life of geocomposites is assessed in accordance with recognized international guidelines guaranteeing long-term property retention.

In summary, Farnam Baspar’s geocomposites are designed to deliver durable, long-term, and reliable performance in geotechnical and environmental engineering projects.

Is special equipment required for installation geocomposite?

No, the installation of geocomposites generally does not require specialized or complex equipment. The process is similar to that of geotextiles or geogrids and can be carried out with proper subgrade preparation and basic tools.

  1. Subgrade Preparation:

The surface must be smooth, leveled, and free of sharp objects or materials that could damage the geocomposite.

  1. Unrolling and Placement:

Geocomposite rolls are typically unrolled manually or with light equipment. Cutting on-site can be performed with simple tools such as utility knives or industrial scissors.

  1. Anchoring in Place:

Geocomposites are usually secured using steel pins, clamps, or by embedding the edges under cover layers of fill material.

  1. Connection Methods:
    • For geotextile–geomembrane geocomposites, thermal welding or controlled overlaps may be required.
    • For other types (geogrid–geotextile, geonet–geotextile), proper overlap and sufficient cover placement are generally adequate.
  2. Quality Control:

After installation, overlaps, uniform tensioning, and compaction of cover materials should be verified to ensure reliable filtration, drainage, or barrier performance.

In summary, geocomposite installation is a relatively straightforward process that does not demand advanced machinery, but proper execution by experienced crews is essential to ensure long-term functionality.

What is your return policy for geocomposite products?

Farnam Baspar manufactures and supplies geocomposites in compliance with international standards and guarantees their quality. To provide customers with confidence, our return policy for geocomposite products is as follows:

  1. Defective or Non-Conforming Products:

If a geocomposite is found to have a manufacturing defect or does not meet the declared technical specifications, customers may return the product. After technical inspection, the product will either be replaced or refunded.

  1. Return Conditions:
    • The geocomposite must not have been installed or used in a project.
    • Rolls must be returned in their original factory packaging, undamaged.
    • Return requests must be submitted within 30 days of delivery.
  2. Non-Returnable Items:

Customized or special-order geocomposites (e.g., non-standard layer combinations, special tensile strengths, or specific thicknesses) cannot be returned due to their tailored nature, unless a manufacturing defect is verified.

  1. Shipping and Costs:

In cases of verified manufacturing defects, Farnam Baspar covers all transportation and replacement costs. For other return requests, logistics expenses are the responsibility of the customer.

This policy is designed to ensure customer trust and product quality, while providing a fair balance between the manufacturer and the end user.

How is geocomposite shipped, and what are the delivery options?

Farnam Baspar’s geocomposites are packaged and shipped to ensure full protection during transportation.

  1. Packaging:
    Geocomposite rolls are tightly wound and covered with durable plastic wrapping to safeguard them against dust, moisture, and UV exposure.
  2. Modes of Transportation:
    • For domestic projects and smaller orders, delivery is typically arranged by truck or trailer.
    • For export or large-scale orders, sea freight in standard containers is the most common option.
  3. Delivery Options:
    • Ex-Works (EXW): The customer is responsible for transportation.
    • Delivered to Site: Farnam Baspar arranges logistics and delivers directly to the project location.
    • Other Incoterms (such as FOB, CIF, etc.) are available depending on contractual agreements.
  4. Farnam Baspar Advantage:

With extensive experience in both domestic and international projects, Farnam Baspar’s logistics team ensures the most efficient and reliable shipping and delivery methods tailored to each project’s needs.

As a result, geocomposites are delivered safely, reliably, and in full compliance with international shipping standards.

 

 

 

 

 

 

 

 

 

 

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It can be produced with a double layer of geotextile on the sides of the geomembrane or a single layer of geotextile.

thickness (mm) 1, 1.5
length (m) 30-100
width (m) 2.6-2.8, 6-6.8
density (g/cm3)
Packaging type Roll
material PE Geomembrane, PP or PES Geotextile
waterproof
color Black Geomembrane, Usually White Geotextile
Warranty
lifespan
application tunnel, agriculture, aquaculture, oil and gas, landfill
Coverage:
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