What is Geogrid?

Geogrid is a type of geosynthetic product used in civil engineering and geotechnics to enhance and stabilize soil and other materials. These materials are made in a grid-like structure from polymer strips or fiberglass, possessing high tensile strength and long-term stability. The main features of geogrids include increasing the load-bearing capacity of the soil, reducing settlement and soil compaction, improving slope stability, and lowering the costs of construction projects. Geogrids are commonly used in various projects, including the construction of roads, bridges, retaining walls, and marine structures, helping to improve the performance and durability of structures.

Geosynthetics enhance the efficiency of traditional materials, making construction more effective, cost-efficient, and reliable. Since the price of geogrid is lower compared to other materials and it has a longer lifespan and higher efficiency, its use in construction is highly economical.

Geogrid is made from various polymers such as polyethylene and polypropylene and is manufactured using one of three methods. These three methods are:

Extrusion (punched and stretched);

Weaving;

Extrusion and welding

Geogrid mesh

The overall shape of geogrid resembles a grid structure with cohesive connections that provide strength and stability. Geogrids are employed in solving engineering issues by stabilizing and reinforcing soil and granular materials. The pores present in geogrid sheets allow fine stones to be confined within. If the connections of the geogrid are strong and deep enough, they hold the soil tightly, forming a composite that enhances strength and resists deformation.

Types of Geogrids

Geogrids are categorized into four types, each having different geometric characteristics and designs that suit various applications. The price of geogrids varies according to their type. These four types are:

Unidirectional

Unidirectional geogrid is stretched in the longitudinal direction, and consequently, stress is only transferred along its longitudinal axis. This type of geogrid has high strength and tensile resistance along the length. Due to the characteristics of unidirectional geogrid, it is used for constructing elements such as geogrid retaining walls and is widely used on sloped earthen surfaces.

Bidirectional

Bidirectional geogrid is stretched both longitudinally and transversely, allowing stress and pressure to be transmitted in both directions. This type of geogrid has the ability to distribute the load over a wider area, making it suitable for foundation stabilization due to its increased capacity. Bidirectional geogrids are the best choice for use in roadbed foundations, airport runways, transportation roads, working platforms, and parking lots.

Triaxial

With advancements in bidirectional geogrid generation, triaxial geogrid has entered the market. This type of geogrid features additional diagonal ribs that increase its resistance. Triaxial geogrids are designed for unpaved and paved roadways.

Geogrid-Geotextile Composites

This type is made from two materials, geogrid and geotextile. These geogrids are effective separators for highly challenging conditions.

Sale of Geogrid Sheets

Applications of Geogrid Sheets

Geogrid sheets have extensive applications in construction. In the past, concrete was used to build retaining walls; however, today, geogrid has become one of the essential materials for constructing retaining walls. The price of geogrid is lower than that of concrete, making the construction cost of walls with geogrid less than that with concrete. Besides influencing the construction cost, geogrids also make walls more stable and earthquake-resistant.

As mentioned, geogrids enhance soil performance by stabilizing and strengthening it. For this reason, this sheet, in addition to wall construction, is also used in the following areas:

Used for constructing stable platforms on soft ground.

Geogrid sheets minimize the movement of gravel in constructing heavily trafficked roads and sidewalks, improving the performance of both paved and unpaved roads.

Used for stabilizing the substrate in highways and railways, making the substrate more resilient and facilitating easier and cheaper maintenance of these paths.

For building earth walls to enhance resistance.

Geogrid is used to support and strengthen embankments and dams to prevent riverbed erosion and flooding.

Geogrid is essential in protecting pipelines carrying oil, gas, and water, creating a stable and unyielding base beneath the pipes.

In areas needing protection from landslides and rock falls.

To prevent soil erosion so that vegetation growth isn't hindered.

For access roads in marshy areas. In marshy regions, transporting materials is extremely difficult or impossible. Geogrid sheets in these areas regulate water movement and reduce soil settlement. Particularly if railways and roads need to be constructed in marshy regions, using geogrid sheets is essential for creating suitable foundations.

This resilient product has extensive applications in tunnel construction and drainage. Especially for mine tunnels, geogrid provides safety against wall collapses. In earlier methods, concrete was used for tunnel construction, but due to its advantages, geogrid is a better option.

It serves as a substitute for metal nets to protect the roof insulation of warehouses, sheds, and sports halls.

For constructing concrete channels for water and sewage, using concrete and geogrid sheets increases the channel's resistance to damage.

The features of geogrids, including environmental compatibility, load distribution over a wide area, high tensile strength, and high retention capacity, have led to their use in pavements and dam constructions.

Advantages of Geogrids

Key advantages of geogrids include:

Geogrids reduce the amount of granular materials needed for construction. Extracting and transporting these materials for any civil project is very expensive. With geogrids, the need for granular materials is minimized, which helps conserve terrestrial resources and positively impacts construction costs.

Price of Geogrid Sheets

Using geogrid sheets in construction ensures that projects are completed more quickly and enhances the structure's performance. The presence of geogrid sheets in a structure significantly reduces the need for repairs and interruptions that may occur over time.

This product ensures that a structure achieves maximum lifespan and efficiency. In general, considering the price of geogrid sheets, this product has a very high value and efficiency in civil engineering.

Geogrids reduce soil displacement and increase load-bearing capacity, leading to stabilized construction.

Compared to traditional methods, geogrids offer high strength, friction coefficient, and greater resistance to corrosion. This high resistance ensures that employing them in hydraulic projects or roads designed for heavy machinery does not lead to technical issues stemming from erosion.

Disadvantages of Geogrids

Despite all the advantages of this product and its role in conserving terrestrial resources, the use of geogrids is detrimental to the environment. Since this product is made from plastic, it cannot be overlooked that plastic harms the environment. The long lifespan and non-biodegradability of plastic may lead to environmental damage in the future. However, due to the extensive applications and many advantages of this product, efforts are being made to find solutions to address this issue.

Price of Geogrids

The price of geogrids depends on various factors, including its type; by selecting the type, you also determine its durability, thickness, and tensile strength, which will affect the price of geogrid sheets in Tehran. Another factor influencing the price of geogrid sheets is their area. Depending on the type of project, the quantity of this product required will vary.

When purchasing geogrids, pay attention to the seller of this product. Some sellers offer geogrids at different prices. Investigate the reasons behind these price differences before purchasing to ensure that you are buying a suitable product. Forman Baspar provides a completely safe platform for purchasing this product, and for price inquiries regarding geogrids in Tehran, you can contact us.

Important Tips for Buying Geogrids

Before purchasing geogrid sheets, consider the following:

When selecting the type of geogrid sheet, evaluate its performance as part of the system. Other components of the system affect its overall quality efficiency.

Always check the tensile strength of geogrid sheets when buying.

In addition to tensile strength, checking the resistance of connection points, the warp, and weft in both longitudinal and transverse directions during purchase is crucial.

Forman Baspar, Geogrid Manufacturer

Forman Baspar is a geogrid producer and one of the most reputable companies in the industry, having started its operations in this field in 1983. This company successfully produced and sold geosynthetic products in 2008. By providing high-quality products, it has gained customer satisfaction in this field. Forman Baspar is the leading company in manufacturing geosynthetic products and sells them at reasonable prices.

Standards of Forman Baspar Geogrid

According to the international standard GRI-GG4

According to ASTM D6637 and ASTM D7737 standards

Can be designed according to customer needs

Other products of this Company

Ferrochrome (Ferro-chromium)

Celestine (Celestite)

Linear low-density polyethylene (LLDPE)

White Cement