Geosynthetic materials are synthetic products manufactured of natural fiber or their composites, which are made of various raw materials and are characterized by extremely wide application possibilities in civil engineering. By definition, they are designed to be applied together with soil. The purpose of geosynthetic materials is to improve the mechanical and/or hydraulic properties of soils and to give the structure additional strength and stability, increasing the service life and ensuring the necessary durability of the structure. The use of geosynthetic materials allows to avoid large soil or concrete installation works, significantly reducing the amount of CO2 emission into the atmosphere.
According to the application areas provided in European standards, geosynthetic products are used in roads and other traffic areas, railways, earthworks for foundations and supporting structures, drainage systems, erosion protection works, construction of reservoirs and dams, construction of canals, construction of tunnels, solid waste landfills, and in projects of liquid waste accumulation.
Non-woven geotextiles are products made of polypropylene (PP), polyester (PET), or secondary raw materials, which are made of thin polymer fibers by mechanically joining them with needles or thermally joining them into a unified product.
Non-woven geotextiles allow to increase the service life of the structure by separating the soil layers, ensuring the perfect permeability of water. They are also an excellent choice for protecting steel structures or waterproofing materials from possible punctures during the construction and use of the structures.
The selection of non-woven geotextiles is particularly wide: from 80 g/m2 to 2000 g/m2 of areal weight. Materials can be adapted according to GRK, NGS and UK classification. Due to the wide variety of products, and the combination of different properties, non-woven geotextiles can be adapted according to the situation of each project.
Non-woven geotextiles are certified and CE-marked according to the requirements of European Standards and Regulation (EU) No 305/2011.
Woven geotextiles are products made of polypropylene (PP) or polyester (PET), which are produced by weaving or braiding, where threads, strips or yarns are joined into a unified product. Woven geotextiles can have equal tensile strength in both directions or one main tensile direction.
Woven geotextiles make it possible to increase the bearing capacity and service life of the soil structure by reinforcing and separating soil layers so that water can pass through. They are also an excellent choice to ensure the stability of embankments or steep slopes.
The selection of woven geotextiles is particularly wide: from 14 kN/m to 1,000 kN/m of tensile strength. Materials can be adapted according to GRK classification. Due to the wide variety of products, and the combination of different properties, woven geotextiles can be adapted according to the situation of each project.
Woven geotextiles are certified, and CE marked according to the requirements of European standards and Regulation (EU) No 305/2011.
Geogrids are products made of polypropylene (PP) or polyester (PET), which are produced by welding, punching, stretching or weaving strips to form a grid of a regular mesh size. Geogrids can have equal tensile strength in both directions or one main tensile direction.
Geogrids make it possible to increase the bearing capacity and service life of the soil structure by stabilizing and reinforcing soil layers. It is an excellent choice to ensure the strength of foundations, the uniformity of sediments, the strength and stability of embankments, steep slopes or supporting structures. They also make it possible to install ground structures and working platforms under extremely high loads, or ground structures above rigid piles.
The selection of geogrids is particularly wide: from 15 kN/m to 1,200 kN/m of tensile strength. Geogrids can be combined with non-woven geotextiles into one geocomposite product, thus reducing installation costs. The materials can be adapted according to the situation of each project.
Geogrids are certified, and CE-marked according to the requirements of European Standards and Regulation (EU) No 305/2011.
A geosynthetic barrier is a low-permeability or completely impermeable material designed to limit the flow of liquids. Geosynthetic barriers are divided into geosynthetic polymer barriers (geomembranes) and geosynthetic clay barriers (bentonite mats). A geomembrane is a sheet material made of polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC) or ethylene propylene diene monomer (EPDM). A bentonite mat is a geocomposite material made by combining layers of non-woven geotextile, bentonite clay and woven geotextile into one product by needle punching.
Geosynthetic barriers make it possible to create a layer impermeable to liquids in contact with soil or concrete. Polymeric geosynthetic barriers are characterized by particularly high resistance to the effects of chemical and biological substances and UV radiation. Geosynthetic clay barriers make it possible to create a layer of low permeability to liquids and replace a layer of natural sifted clay of approximately 1 m thick. They are also perfectly suitable for the protection of underground concrete structures against water seepage or in the construction of dams.
The selection of geosynthetic barriers is particularly wide: geomembranes from 0.15 mm to 3.0 mm thick, and bentonite mats from 2,000 g/m2 to 5,800 g/m2. The materials can be adapted according to the situation of each project.
Geosynthetic barriers are certified, and CE-marked according to the requirements of European Standards and Regulation (EU) No 305/2011
Slope erosion control materials are made from synthetic or natural fibers or their combination, which can be formed into a three-dimensional grid of irregular shape, a regular grid or a mat.
Slope erosion control materials are designed to limit the dynamic impact of rain and the speed of the surface water flow on the surface of the slope, as well as the negative impact of wind on the newly applied vegetation soil. The three-dimensional network of irregular shape also additionally reinforces the root system of the turf. The durability of a synthetic product is more than 25 years, while natural fiber materials decompose within 3 to 5 years depending on environmental exposure.
The selection of geosynthetic barriers is particularly wide: the weight of synthetic spatial grids can be 430 g/m2 and 630 g/m2 and the weight of natural fiber grids and mats vary from 300 g/m2 to 750 g/m2. The materials can be adapted according to the situation of each project.2 svorio. Medžiagos gali būti pritaikytos atsižvelgiant į kiekvieno projekto situaciją.
Geocells are products made of polyethylene (PE), recycled polyethylene or other recycled plastic by forming a three-dimensional honeycomb shape, which is filled with black soil, gravel, crushed stones, or pebbles. Geocells can be flexible or rigid.
Flexible geocells increase the bearing capacity of the soil structure and ensure the stability of the slope surface. Rigid geocells allow to increase in the bearing capacity of the surface of the pavement structure. They make it possible to install access points in green areas, and reinforce roadsides or parking lots and paths.
The selection of geocells is particularly wide: flexible geocells can be from 5 cm to 30 cm thick with the distance between the eyelet welding points of 330 mm to 750 mm; meanwhile, rigid geocells can be from 2.5 cm to 5 cm thick with the mesh size from 18x33 cm up to 77x40.5 cm. The materials can be adapted according to the situation of each project.
Drainage geocomposites are products made of polypropylene (PP), which consist of an extruded core and non-woven geotextile attached on one or both sides of the product. The core can be wavy, irregularly perforated, or regular-shaped rigid polymer rods oriented in two or three directions. Another type of drainage geocomposites are profiled geomembranes with recesses and a geotextile layer (drainage membranes).
Drainage geocomposites make it possible to replace traditional crushed stone or gravel drainage layers by ensuring excellent water or gas permeability even at high pressures. They are used to form both horizontal and vertical drainage layers. They can also be used to protect geosynthetic barriers or other waterproofing materials from possible punctures during the construction and use of structures.
The selection of drainage geocomposites is particularly wide: from 500 g/m2 to 1,900 g/m2 of areal weight. Materials can be adapted to the required fluid permeability and puncture resistance. Due to the wide variety of products, and the combination of different properties, drainage geocomposites can be adapted according to the situation of each project.
Drainage geocomposites are certified and CE-marked according to the requirements of European Standards and Regulation (EU) No 305/2011.
Asphalt reinforcement materials are geogrids and geocomposites made of glass fiber or steel with particularly high rigidity. Fiberglass geogrids and geocomposites are produced with a bituminous coating to ensure adhesion between the asphalt layers and the material. Steel grids are made of double-braided, anti-corrosion-coated wire mesh with transverse stiffening bars.
Asphalt reinforcement materials make it possible to protect new layers of asphalt pavement from cracking due to deformations of the old asphalt pavement, negative atmospheric effects, and/or to increase the service life of the pavement in the event of insufficient bearing capacity of the foundations. In addition, they can be used to ensure the smoothness of the asphalt pavement over the old pavement of reinforced concrete slabs.
Although the tensile strength of asphalt reinforcement materials is 50 kN/m and 100 kN/m, due to the wide variety of material types, the choice is sufficiently wide: from a simple geogrid to a geocomposite with a large layer of bitumen coating, which does not require bitumen emulsion during installation. The materials can be adapted according to the situation of each project.
Asphalt reinforcement materials are certified, and CE-marked according to the requirements of European Standards and Regulation (EU) No 305/2011
