The use of geosynthetics in road construction. Geosynthetic materials for road construction. Transportation and storage of geogrid Armiset – AS

The road geogrid is one of the most demanded materials in the construction market, which is a geosynthetic canvas with a pronounced mesh structure. The cellular structure is formed from strong threads, fastened in knots with a sewing thread, by interlacing, gluing, and in other ways. The geogrid is supplied in rolls. It is made from different polymers with a variety of technical capabilities.

Road geogrids are used not only on soil surfaces, but also when reinforcing asphalt concrete. The main scope of geogrids is road construction. This material allows you to significantly increase performance roadbed. The use of geogrids in the construction of runways is especially important, since they are subjected to an increased load.

Operating characteristics

The road geogrid is being processed special composition, which increases the physical and mechanical characteristics, thanks to which it is characterized by the following positive properties:

• Impeccable strength and good resistance to deformation;
• The road geogrid is resistant to the environment, that is, it does not collapse at high humidity, when exposed to ultraviolet rays, and does not rot;
• The service life of a road geogrid is half a century or more.

Varieties of road geogrids

The road geogrid is made of various polymeric materials:

• polyester;
• polyamide;
• polypropylene;
• polyethylene;
• fiberglass;
• polyester

The properties and technical characteristics of the road geogrid directly depend on the type of raw material used as the basis. For example, a geogrid made of polypropylene has high technical characteristics, but does not tolerate exposure to ultraviolet rays. And geogrids made of polyester are characterized by poor resistance to chemically aggressive components. Nets based on polyamide lose their strength when exposed to high humidity.

Depending on the cell formation technology, two types of geogrids are distinguished: single and double orientation. That is, the choice of geogrid depends on the conditions of the project, and the consumer can choose the material, taking into account the tasks that he needs to perform.

1. In road construction:

• Asphalt and asphalt concrete pavements;
• Soils in the bases of road embankments;
• Layers of embankments on weak foundations;
• Slopes of ditches, roadsides.

2. For erosion protection of weak areas when strengthening slopes.

3. For reinforcing asphalt concrete in road and civil engineering.

4. For the construction of runways and access roads in airports.

5. For reinforcing soils and tying load-bearing supports in soft, loose soils to reduce loads in industrial and hydraulic engineering construction.

6. Geogrid with geotextile - construction drainage systems and soil preparation of construction sites where this geogrid/geotextile geocomposite can distribute loads and create, for example, an anti-slip layer effect over waterproofing.

GEOGRID FOR ASPHALT CONCRETE REINFORCEMENT

The geogrid for reinforcing asphalt concrete prolongs the operation of concrete highways, which are being used more and more every year.

Mesh reinforcement allows you to distribute local loads over the entire volume of the roadway in the immediate vicinity. In addition, the geogrid for asphalt concrete reinforcement also distributes the internal stresses that occur during the shrinkage process. concrete mortar, hardening gradually.

Reinforcing concrete with a metal mesh is expensive and short-lived. Alternative metal mesh- this is a basalt mesh or a fiberglass mesh with the necessary characteristics for this:

• chemical inertness (such grids are not affected by the alkaline concrete environment and temperature changes);
• unique elasticity (the geogrid distributes local loads);
• light weight and easy installation, affordable cost and long service life.

If we compare a geogrid for road construction with a ground geogrid, then the first material is treated with bitumen (to improve its performance).

GEOGRID FOR ROAD CONSTRUCTION

The road surface is exposed to large traffic flows and is destroyed every day, revealing pits, cracks and potholes to motorists. This is due to the fact that the base of the road surface is not sufficiently prepared for such loads. A geogrid for road construction helps improve the tensile strength of an asphalt concrete pavement and optimize its absorption of horizontal stresses. The road geogrid can be used both for the construction of new roads and for the repair of old ones.

Thanks to the use of geogrids in road construction, the durability and performance of the road can be significantly improved. And if the geogrid is used with geotextile, then this will allow using a much smaller volume of loose fractions during the construction of the road, which will not change the quality of the structure, but will significantly affect its cost in the direction of cheaper.

TYPES OF GEONETS

According to the method of formation, geogrids are divided into biaxial (biaxial or double orientation) and uniaxial (monoaxial or monooriented).

Biaxial flat geogrids with rectangular cells are designed for construction on soft soils. Dual orientation geogrids contribute to the distribution of loads (including dynamic ones) when laying foundations or foundations for permanent and temporary, for example, oilfield roads.

Uniaxial geogrids made of long elongated cells have high tensile strength in one direction and are used to strengthen soils in the construction of terraced walls, backfill abutments, slopes and landslide areas.

Types of geogrids determine their features and applications.

GEONET 20 20

Geogrid 20 20 is used both on the ground and for road construction. This roll material, made of polypropylene, allows you to strengthen the base, prevent the movement of bulk material fractions.

The small cell size in geogrids with these parameters allows you to keep even the smallest fractions of backfill materials.

TECHNICAL CHARACTERISTICS OF THE GEOGRID 20 20

The name of indicators		Units		Test results
1) Surface density, not less than
2)Maximum load during tensile tests, not less than	along
	across
3) Tensile load at a relative elongation of 2%, not less than	along
	across
4) Tensile load at a relative elongation of 5%, not less than	along
	across
5) Relative elongation at maximum load, not more than:	along
	across
6) Cell size	by lenght
	in width
7) Cell skew
8) Roll width
9) Roll length
10) Resistance to action of chemical environments (load from initial), not less than

GEOGRID 40 40

Geogrid 40 40 increases the strength of the road in the conditions of its construction on the most difficult soil, mixed or clay.

Geogrid 40 40 is used when the geogrid needs to be laid directly on the ground itself. Also, by using it as a layer, you help keep the rubble from moving.

TECHNICAL CHARACTERISTICS OF GEOGRID 40 40

	Name of indicator	Geogrid 40 40
	Cell dimensions
		20, 25, 37, 40, 50
		20, 25, 37, 40, 50
	Roll dimensions
	- roll width, m
	- winding, m
	Raw material
	- the basis	polyester
	- impregnation	polymeric

GEOGRID 50 50

The geogrid with cell parameters 50 50 has properties that allow it to be used for road construction, as well as for the construction of the pavement of airport terminal sites.

Geogrid 50 50 - these are two strands of fiberglass threads connected by a third thread, which is called piercing. The material is impregnated with a special polymer composition. This allows you to achieve the necessary resistance to impact external environment(both chemical and physical).

TECHNICAL CHARACTERISTICS OF GEOGRID 50 50

	Name of indicator	Geogrid
	- in the longitudinal direction, kN / m 2
	- in the transverse direction, kN / m 2
	Cell dimensions
	- in the longitudinal direction, mm
	- in the transverse direction, mm
	Roll dimensions
	- roll width, m
	- winding, m
	Elongation at maximum load
	- in the longitudinal direction, %
	- in the transverse direction, %
	Permissible loss of tensile strength after 50 freeze-thaw cycles, no more than, %
	Raw material
	- the basis	polyester
	- impregnation	polymeric

GEONET 100

Geogrid 100 is a road polymer grid created on the basis of polymer threads interconnected by another thread - a binding thread.

Road polymer geogrid 100 reinforces pavements that come into contact with large fractions of materials. Polyester threads in its composition help to maintain resistance to aggressive external environments.

TECHNICAL CHARACTERISTICS OF GEOGRID 100

	Name of indicator	Geogrid 100
	- in the longitudinal direction, kN / m 2
	- in the transverse direction, kN / m 2
	Cell dimensions
	- in the longitudinal direction, mm
	- in the transverse direction, mm
	Roll dimensions
	- roll width, m
	- winding, m
	Elongation at maximum load
	- in the longitudinal direction, %
	- in the transverse direction, %
	Permissible loss of tensile strength after 50 freeze-thaw cycles, no more than, %
	Surface density, g/m²
	Raw material
	- the basis	polyester
	- impregnation	polymeric

GEOGRID PRODUCTION

The Geoflax geogrid is produced on three different production lines.
It is possible to produce the following types of geogrids:

• Extruded polyolefin geogrids;
• Glued fiberglass geogrids;
• Stitched geogrids made of fiberglass and polyester thread.

Line productivity - up to 5 tons per day. Equipment of European and Asian origin has high performance, automated program control to control and quickly make changes to the production process.
Due to the variability of production methods, geogrids are obtained not only with different properties, but also from different types of raw materials, with different fastenings at the geogrid nodes. The main requirements for geogrids are:

• Resistant to polluted waters;
• Resistance to the influence of natural factors;
• Resistance to aggressive media, possible under operating conditions;
• UV resistance;
• Strength and stability of geogrid properties.

WHICH GEONETIC TO CHOOSE?

From the variety of types and sizes of the geogrid, a question arises. What geogrid to choose?

Geogrids made of synthetic materials, such as SSP, SSNP or DSC, can be selected based on the purpose, the type of raw material and the method of formation of the cells. As a rule, geogrids, regardless of type, are used in construction, landscaping, and soil planning. Geogrids are used for reinforcement, separation and erosion control. Having decided on the purpose of use, you need to choose a specific type of geogrid - a road geogrid, a ground geogrid.

When choosing geogrids on the basis of the initial properties of raw materials, it is necessary to focus on the characteristics of the resistance of this material to hydro-, bio-, chemical and thermal effects.

MAIN PROPERTIES OF SYNTHETIC FIBERS

Fiberglass geogrids are certainly cheaper than PE geogrids, although their slight elasticity significantly undermines the position. Polyester geogrids are durable, do not rot, elastic (stretch resistance up to 25%), and technologically advanced.
For best results in road construction, polyester geogrids have a low elongation to break, and glass grids, with their comparatively high performance, are optimally suited. Due to these differences in properties, technologies for the production of geogrids from multifilament glass rovings with PE fibers in the weft direction have become widespread.

COMPARATIVE INDICATORS OF POLYESTER AND GLASS FIBER GEONETS

Glass geogrids are less exploited under negative natural factors and are destroyed much faster than polyester geogrids, which potentially work for more than 100 years.
Fiberglass, with all their high power features, is destroyed and intensively ages during long-term interaction with groundwater and negative temperatures characteristic of Russian conditions, therefore, they require additional protection.
But polyester geogrids are also highly sensitive to operating conditions - their use with cement and reinforced concrete elements without special protective additives should be limited due to their reaction to alkalis. Geogrids are usually impregnated with polymers, plastisols or bituminous dispersions. For work in the ground, the geogrid is impregnated with polyvinyl chloride, in the structure of the pavement - with bitumen.

A small level of creep of polyester and polyester in the threads of the geogrid distinguishes it from the background of glass ones, since the latter, when installed between different asphalt mixtures, is prone to deformation under the action of asphalt pavers and rollers. To facilitate the installation of the geogrid, improve the contact between the layers, the geogrid is supplemented with non-woven geotextile as an unhindered binder.

Geosynthetic materials in road construction are mandatory for use when laying roads in permafrost areas, deserts, peat bogs, swamps, in other difficult geological conditions, as well as in technogenic soils. The use of geosynthetic materials at the same time significantly reduces the cost of preparing the area for the construction of roads for vehicles, since there is no need to carry out some rather labor-intensive and expensive works, for example, lowering the groundwater level or strengthening slopes.

Geosynthetic materials in road construction

Geotextile mesh, geogrids, as well as non-woven geotextile fabric are mainly used for reinforcing the roadbed, as they are made from very durable polymers with excellent performance. These materials can perform dividing and reinforcing functions, while perceiving a point load and distributing it over the widest area of ​​their surface. This ability allows you to reduce the occurrence of potholes, cracks, pits and ruts on the surface of the roadway itself. In the context of the roadbed device is a multi-layered "pie" in which the duration of the operation of the road will depend on the stability and strength of each layer. The use of geosynthetics for use as a layer between bulk layers makes it possible to strengthen the base of the road and create a reliable road structure.

Also, a geogrid is laid between the layers of soil and crushed stone, which prevents crushed stone from being pressed into soft soil, thereby reducing material consumption and increasing the overall stability of the base, while crushed stone fractions are fixed in the cells of the geonet and form a composite layer that is well resistant to loads composite layer.

Geogrid

Non-woven geotextile, with which you can even strengthen the shore of a reservoir, is usually laid between sand and gravel. This material does not allow sand particles to penetrate between larger fractions of crushed stone, thus preventing the mixing of bulk materials, which significantly reduces their consumption and increases the overall stability of bulk layers, while performing separating and reinforcing functions. Microscopic holes in the geotextile sheet also give it drainage and filtering properties. Because of them, it does not become clogged with the smallest particles of soil, freely passing air and moisture. By its design, a geogrid is a three-dimensional canvas with cells filled with various bulk materials, depending on the purpose of their use in the construction of certain construction works. Such a grating gives the roadbed additional rigidity and contributes to the uniform distribution of the load on it. Gesynthetics in construction significantly reduce transportation costs, costs for materials, machines and mechanisms, energy costs, which leads to a significant reduction in the construction time.

Geogrid Armiset-AS

Geogrid Armiset-AS is supplied standard width 5.4 meters per roll. Each roll is wrapped in plastic wrap.

Geogrid Armiset-AS

Application of geogrid Armiset-AS

• Reduction of rutting, deformation and shifts of the road and airfield pavement during active operation
• Reinforcement structural layers road and airfield pavements

Geogrid advantages:

• Increased turnaround time for road and airfield pavement
• Reduce rutting, potholes, ridges, slips and other roadway deformations by increasing the tensile strength of the asphalt pavement and providing more even stress distribution over a larger area.
• Prevention of re-occurrence of reflected and fatigue cracks from old to new layers of asphalt concrete pavement
• Reducing the thickness of the asphalt concrete pavement
• The presence of a thin technological substrate, which contributes to the unhindered movement of people and equipment on the surface of the laid material
• Possibility of manufacturing material according to individual requirements Zach

Types of geogrid - AS

The problem of durability and crack resistance asphalt concrete pavement Today it is relevant for most automobile and airfield pavements of various categories. With the annual increase in automobile and air traffic, the dynamic loads that destroy the road structure are also constantly increasing, in connection with this, the requirements for the strength characteristics of rigid and non-rigid pavements are constantly tightened.

When through cracks appear in the asphalt concrete layers, the solidity of the entire coating, the uniform distribution of incoming loads and their redistribution to the underlying layers of the base are violated. As a result, pavement deformations and irreversible structural destruction of pavements appear. When reinforcing asphalt concrete pavements, to prevent these negative consequences, it is recommended to use a woven polyester geogrid ARMISET-AS to increase the transport and operational characteristics of the road, thereby increasing the service life, eliminating and slowing down the process of defects. pavement(cracks, potholes, ruts). The ARMISET-AS geogrid improves the elastic properties of asphalt concrete, increasing its resistance to tensile forces under prolonged and repeated loads.

Transportation and storage of geogrid Armiset – AS

Woven geogrid Armiset-AS is supplied in widths from 4.20 to 5.40 m per roll. The weight of the rolls - depending on the type of material. Each roll is wrapped in plastic wrap.

Acceptance and unloading

The delivered goods must be checked for identification and possible damage in transit. Damaged cargo should be put aside. The responsible party must sign an act to confirm receipt of the Armiset-AS in good condition. The following devices can be used for unloading:

• forklift with appropriate steel support (> 2/3 roll length)

Geotextile woven Armistab

Armistab - woven polyester geotextile. The production of geotextiles is carried out on the latest high-tech German equipment.

Armistab - woven polyester geotextile

Application of geotextile Armistab

• Construction of reinforced ground structures (retaining walls).
• Reinforcement of embankments on weak and heaving foundations during the construction of temporary roads, winter roads, parking lots and other structures.
• Reinforcement of embankments for automobile and railways, arrangement of parking lots, taxiways and runways of airfield pavements
• Construction of structures on pile foundations (creation of flexible pile grillages).
• Construction of sites for high loads (container terminals, airfields, solid waste landfills).
• Reinforcement and separation of heterogeneous and fine-grained soils, protection of soils from water erosion.

Advantages of geotextile Armistab

• High tensile strength up to 1600 kN/m2;
• Separation and filtering functions;
• Ability to perform work in winter;
• High resistance to damage during installation;
• High tensile strength with low elongation.
• High level of resistance to microbiological and chemical attack pH 2.0-9.5;
• Possibility of manufacturing material according to individual customer requirements;

Geotextile laying Armistab

Due to its ability to absorb high tensile loads, as well as its adhesion to the ground, when laid in earthworks, together with compacted soil layers, ARMISTAB geofabric forms a rather complex and durable structure. Having highest performance tensile strength, ARMISTAB woven geotextile is an indispensable component for subgrade reinforcement. With a high speed of embankment construction on heaving and soft soils (clay, peat) and insufficient shear strength of the base soil, the risk of reducing the bearing capacity of the entire structure increases. Being placed between soil and aggregate, ARMISTAB is designed to eliminate this problem by increasing the bearing capacity of the soil and the stability of the entire embankment as a whole. During the construction of earthen support structures, AMISTAB woven geotextile greatly facilitates the construction of embankments on weak foundations. Unique Features ARMISTAB geotextiles allow to repeatedly increase the bearing capacity of the soil during the construction of breakwaters, dams, piers, and other port facilities for various purposes. In the design and construction of landfill sites, it is considered that excessive loads can lead to cracks in the mineral insulating coatings. Geofabric ARMISTAB, laid under such a coating, prevents critical deformations of the coating that occur during the settlement of dumped debris or underlying soil. Often, landfills have very steep slopes, in which ARMISTAB can also be used as a reinforcing element. Often the strengthening of slopes with very steep slopes or retaining elements is limited by the shear strength of the soil. ARMISTAB allows you to achieve the necessary stability by reinforcing horizontal layers of geofabric according to the "pie" principle. If it is required to ensure the bending of the landscape and ARMISTAB acts as the outer cladding of the structure, an embankment of a layer of soil is made, followed by sowing of grasses. Summarizing the above, it can be noted that ARMISTAB woven geotextile is indispensable for reinforcing soils with low bearing capacity, allows you to avoid the construction stop associated with the replacement and long-term consolidation of the soil. It is also obvious that the material costs for carrying out the above works are reduced. ARMISTAB installation does not require special equipment or special climatic conditions.

Geogrid Armiset-SL

Geogrid Armiset-SL

Application of geogrid Armiset-SL:

• Strengthening the coastlines of reservoirs, cones of bridges and overpasses.
• Protection of slopes from landslide processes, wind and rain erosion.
• Strengthening of rock heaps in the process of developing mines, combines, followed by giving an aesthetic appearance by sowing grasses.
• Strengthening the slopes of the excavation subgrade embankment.
• Landscape design (reinforced soil structures, artificial reservoirs etc)
• Strengthening the slopes of embankments and excavations during the construction of roads and railways.

Advantages of geogrid Armiset-SL:

• Easy installation: thanks to the elasticity and low weight of the material, it accepts any slope irregularities without the need for additional anchoring.
• due to the 3-D structure, up to 90% of the material is an open surface, which contributes to the rapid germination of the plant layer.
• Resistance to chemical and biological effects pH 2.0-9.5.
• Possibility of operation in various temperature ranges (from -60 to +60 degrees), resistance to ultraviolet radiation.
• The large width of the roll (up to 5.4 m and length up to 200 m) facilitates laying the material over the entire length of the slope without horizontal seams, which forms a single structure.
• Possibility of manufacturing material according to individual customer requirements.

Geogrid laying Armiset-SL

When creating non-cohesive bearing layers, building slopes or supporting structures, first of all, it is necessary to level the base layer in height, and then compact it. The subgrade must be cleaned from the remains of the former structures, trees and stumps after uprooting, sharp objects and large stones. In some cases, it makes sense to additionally lay a layer of geotextile as a separator between the base and the bearing layer (or embankment layer).

Cutting the material to length and laying it

Rolls are rolled out over the entire area intended for reinforcement and cut to the desired length with a knife or scissors. The cut part of the ARMISET-SL roll is turned in its longitudinal direction, which is almost always the direction of the material's greatest tensile strength, parallel to the direction of the load. On slopes and supporting structures, the direction of load is always perpendicular to the axis of the structure. This generally also applies to the reinforcement of non-cohesive bearing layers in road construction. When laying the material, wrinkles should be avoided. The material is laid vertically, the maximum allowable deviation is from +/- 1 cm to 1 m. Before applying the bulk material, the webs should be stretched with stakes or tensioners and slightly tensioned. In supporting structures or in the construction of slopes, joints of material sheets in the direction of reinforcement are not allowed. If joints cannot be avoided, they must be confirmed by calculations. When organizing overlaps on flexible pile grillages in the direction of reinforcement, overlaps are allowed only on the pile heads. When reinforcing slopes and supporting structures, overlaps between adjacent sheets of ARMISET-SL material should be avoided. However, if the construction requires it, the maximum allowable overlap width is 20 cm. in cases, for example, with weak ground, - about 50 cm. Places of overlap can be reduced with the help of seams. With any type of construction, overlapping areas should be covered with a layer of granular non-cohesive material with a thickness of 2 to 7 cm.

Bulk material laying

The movement of vehicles is not allowed on rolled, not covered from above material sheets. The movement of vehicles is only allowed after a filling layer with a thickness of at least 0.15 m. the required minimum values ​​for the degree of compaction or modulus of deformation.

Types of geogrid-SL

ARMISET-SL is a woven polyester (polyester) 3D geogrid, made on the latest high-tech German equipment. Serves to strengthen the slopes of the roads.

The practice of construction and erection of slopes of embankments and excavations of roads does not have a holistic design and technological solution in this area. There are two reasons for this: it is the absence of lightweight types of slope reinforcement, which would occupy a niche between anti-erosion protection with the help of grass sowing, as well as massive fortifications in the form of slabs or riprap. The second reason is caused by the need to industrialize structures and fortifications, thereby reducing the volume and labor costs for performing work on slopes. Since work on the slopes of people and machines is extremely complicated, and sometimes even extremely difficult, slopes with a laying of up to 1:1.5-1:2 will serve as an example. In these cases, a flexible structure such as the ARMISET-SL polyester geogrid, which is more stable due to its better ability to accept various slope deformations, may be more effective, thereby providing best job material ARMISET-SL with primer. ARMISET-SL performs the functions of reinforcement, drainage during the development of the sod layer in the sloping parts of embankments and cuts, and also increases their resistance to wind and water erosion and suffusion processes. The use of the ARMISET-SL geogrid makes it possible to develop constructive solutions that are more efficient in terms of technical and economic benefits.

Transportation and storage of geogrid armiset-SL

Woven geogrid Armiset-SL is supplied in widths from 4.20 to 5.40 m per roll. The weight of the rolls - depending on the type of material. Each roll is wrapped in plastic wrap.

Acceptance and unloading

The delivered goods must be checked for identification and possible damage in transit. Damaged cargo should be put aside. The responsible party must sign an act to confirm receipt of the Armiset-SL in good condition. The following devices can be used for unloading:

• automatic unloader on the delivery truck with load straps attached to a steel tubular core (when unloading this way, the recipient must carefully check the rolls for damage)
• forklift with appropriate steel support (> 2/3 roll length)
• construction equipment with a paver or pipe of adequate force to push through the steel core.

Lifting straps, ropes, etc. must not rub the rolls and protective packaging. Unloading by simply picking up rolls or using simple belts may damage the material and is therefore not permitted. SETKA is not responsible for damages resulting from such cases.

Storage and transport at the construction site

Rolls should be stacked away from traffic on a level, dry and clean surface. Rolls can be placed in parallel, on top of each other, but not more than 4 rolls. Further overloads should be avoided. It is recommended to cover the rolls with a tarpaulin to protect them from UV rays. The packaging can only be removed immediately before laying. To move the rolls from the storage area to the laying place, use the transport system described above. Check the protective packaging of each roll for damage before shipping.

Geogrid Armiset -RU

Prevention of deformation and subsidence of the soil.

Reinforcement of embankments on weak foundations during the construction of permanent and temporary roads, parking lots and other structures

Advantages of the geogrid-Armiset-RU:

• Reducing the layer thickness inert materials road construction.
• Prevent mixing of components of dissimilar materials of construction.
• Extending the service life of facilities, increasing the turnaround time for roads and airfields.

• High resistance of the material to biological and chemical influences, as well as ultraviolet and mechanical damage.
• Possibility of application in reinforced soil structures together with gabion structures and facing blocks.
• Easy installation thanks to technological features material.

Types of geogrid-Armiset-RU:

Problems that may arise when high loads are applied to the base of the road structure lead to the fact that the layer of crushed stone located in the road structure eventually penetrates into the layers. sandy soil, thereby violating the uniformity of the number of layers of material, which leads to the formation of various defects on the road (ruts, heaving), thereby reducing the service life and increasing the cost of maintaining this highway.

To prevent these negative consequences, it is recommended to use the material for reinforcing the foundations of road structures ARMISET-RU (road geogrid), designed to improve the transport and operational characteristics of the road and increase its bearing capacity, thereby increasing its service life, eliminating and also slowing down the process of the appearance of defects associated with insufficient bearing capacity of the bases (cracks, potholes, swelling, ruts). SETKA also produces a composite material under the brand name ARMISET-RU - a geocomposite with a non-woven substrate made of polypropylene or polyester (Dornite type). The main features of this material is the possibility of its use as a reinforcing-draining layer, which will remove excess moisture from the construction of road layers, as well as perform the function of reinforcing the base. Depending on the thickness of the non-woven substrate (100g/m2, 400g/m2, 800g/m2, etc.), the throughput degree and water filtration coefficient in the road structure depend.

Transportation and storage of the geogrid Armiset-RU

Woven geogrid Armiset-RU is supplied in a roll with a width of 4.20 to 5.40 m. The weight of the rolls - depending on the type of material. Each roll is wrapped in plastic wrap.

Acceptance and unloading

The delivered goods must be checked for identification and possible damage in transit. Damaged cargo should be put aside. The responsible party must sign an act to confirm receipt of Armiset-RU in good condition. The following devices can be used for unloading:

• automatic unloader on the delivery truck with load straps attached to a steel tubular core (when unloading this way, the recipient must carefully check the rolls for damage)
• forklift with appropriate steel support (> 2/3 roll length)
• construction equipment with a paver or pipe of adequate force to push through the steel core.

Lifting straps, ropes, etc. must not rub the rolls and protective packaging. Unloading by simply picking up rolls or using simple belts may damage the material and is therefore not permitted. SETKA is not responsible for damages resulting from such cases.

Storage and transport at the construction site

Rolls should be stacked away from traffic on a level, dry and clean surface. Rolls can be placed in parallel, on top of each other, but not more than 4 rolls. Further overloads should be avoided. It is recommended to cover the rolls with a tarpaulin to protect them from UV rays. The packaging can only be removed immediately before laying. To move the rolls from the storage area to the laying place, use the transport system described above. Check the protective packaging of each roll for damage before shipping.

Geosynthetic materials (geosynthetics) contain at least one part made of synthetic or natural polymers. Used to enhance specifications soils and elements of building structures. The main source polymers for most geosynthetics are polyester (PET), polyethylene (PE), polypropylene (PP), polyamide (PA), polyaramid. The materials we offer for road construction and other applications include: geotextiles, geogrids, gabions, geomats, lawn grids, geomembrane.

GEOTEXTILE

In the world practice of modern construction, the whole variety of so-called geosynthetics is actively used, the main share of which is geotextiles in the form of woven or non-woven material based on synthetic polymer threads. Such a geosynthetic fabric has high physical and mechanical properties (in particular, isotropy), as well as resistance to various chemical compounds (acids, alkalis). Geotextiles are not affected by mold and fungi, rotting, root germination. This material is successfully used in the following areas: road construction, construction of tunnels, hydraulic structures, railways, etc.

VOLUME GEOGRID

it is a geosynthetic material with a cellular structure, based on a flexible frame in the form of a honeycomb. During operation, it can be filled with concrete, crushed stone or soil with plant seeds. In road construction, this material is used to protect cones, protect slopes from erosion, reinforce foundations, etc. The geogrid is most widely used in the construction of railways, airfields, and in the construction of roads in permafrost soils. With the help of a volumetric geogrid, the issue of protection of overpass cones, anti-erosion protection of slopes, reinforcement of weak foundations, construction of retaining walls, construction of temporary roads is solved.

FLAT GEOGRID

used in many areas of construction. This mesh product with square cells makes any coating more reliable and durable. This material is produced by extrusion, in the form of rolls with a width of 2 to 4 m. The flat geogrid itself is very convenient to transport, it is light and flexible. The geogrid has rather high strength characteristics, cell size and its structure in the best possible way suitable for splitting crushed stone fraction 40-70, which allows it to be used at the base of the roadway.

GEOGRID

A geogrid or fiberglass (as it is often called otherwise) is a thread-piercing material consisting of heavy-duty synthetic threads fastened together. The production of such geosynthetics can be carried out with impregnation from a bitumen emulsion. The advantage of the geogrid is its resistance to destruction and corrosion, which significantly increases its service life. This geosynthetic material is successfully used in road construction and reconstruction (strengthening slopes, foundations, slopes).

GEOMEMBRANES

Polymeric geomembrane is produced from high quality polyethylene and carbon stabilizer. The elasticity of this geomaterial even at low temperatures allows its active use in waterproofing. industrial facilities. Also, the geomembrane is successfully used for construction artificial reservoirs and irrigation canals. The most stable type of this geosynthetic material can last up to 50 years.

GABIONS

Gabions are three-dimensional mesh structures, which are made of double-twisted galvanized metal mesh. They have hexagonal cells with a polymer, zinc or galfan coating, which are filled with stone or other filler. Such material is widely used in the formation of channels, strengthening the banks, for protection against floods and landslides, as well as in landscape design.

GEOTEXTILE

Geofabrics are a separate class of materials used in road construction in contact with the ground. The special structure obtained by weaving or mechanically fastening the fibers results in special characteristics. Traditionally, geofabrics are made from polyester and polypropylene, but there are also materials made from recycled polymers. The third type is much cheaper, but at the same time it loses in terms of its physical and technical properties. The inclusion of natural materials in the canvas reduces moisture resistance, makes the material vulnerable to organics, aggressive chemical environments.