Application of geosynthetics in road construction. Geosynthetic materials for road construction. Transportation and storage of geogrid Armiset - AS

Road geogrid is one of the most demanded materials on the construction market, which is a geosynthetic fabric with a pronounced mesh structure. The honeycomb structure is formed from strong threads, fastened in knots with a stitching thread, by weaving, gluing and other methods. The geogrid is supplied in rolls. It is made from different polymers with a variety of technical capabilities.

Road geonets are used not only on unpaved surfaces, but also when reinforcing asphalt concrete. The main field of application of geogrids is road construction. This material can significantly increase the operational characteristics of the roadway. The use of geogrids in the construction of runways is especially important, since they have an increased load.

Performance characteristics

Road geogrid is being processed special composition, which increases the physical and mechanical characteristics, due to this it is characterized by the following positive properties:

• Flawless strength and good resistance to deformation;
• The road geogrid is resistant to environmental influences, that is, it does not collapse in high humidity, when exposed to ultraviolet rays and does not rot;
• The operational life of a road geogrid is half a century or more.

Varieties of road geonets

A road geogrid is made of various polymeric materials:

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

The properties and technical characteristics of a road geonet directly depend on the type of raw material used as a base. For example, polypropylene geogrid has high technical characteristics, but does not tolerate ultraviolet rays well. And polyester geonets are characterized by poor resistance to chemically aggressive components. Polyamide-based nets lose their strength at high humidity.

Depending on the technology of forming the cells, there are two types of geogrids: 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 complete.

1. In road construction:

• Asphalt and asphalt concrete pavements;
• Soils in the foundations of road embankments;
• Embankment layers on weak foundations;
• Ditch slopes, curbs.

2. To protect against erosion of weak areas when strengthening slopes.

3. For the reinforcement of asphalt concrete in road and civil construction.

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

5. For soil reinforcement and for bonding bearing supports in soft, loose soils to reduce loads in industrial and hydraulic engineering.

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

GEOSET FOR ASPHALT CONCRETE REINFORCEMENT

Geogrid for reinforcing asphalt concrete prolongs the operation of concrete highways, which are 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 reinforcing asphalt concrete also distributes the internal stresses that arise during the shrinkage process. concrete mortarhardening gradually.

Reinforcing concrete with a metal mesh is expensive and short-lived. An alternative to metal mesh is basalt mesh or fiberglass mesh, which has the necessary characteristics for this:

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

If we compare the geogrid for road construction with the geogrid of soil, then the first material is processed with bitumen (to improve its performance).

GEOGETS FOR ROAD CONSTRUCTION

The road surface is exposed to large traffic flows and is destroyed every day, showing 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. Geogrid for road construction helps to improve the tensile properties of an asphalt pavement and optimize its horizontal stress absorption. The road geogrid can be used both for the construction of new roads and for the repair of old ones.

Through the use of geogrid in road construction, the durability and performance of the road can be significantly improved. And if the geogrid is used with geotextiles, then this will allow using a much smaller volume of free-flowing fractions during the construction of the road, which will not change the quality of the structure, but will significantly affect its cost towards reducing the cost.

TYPES OF GEOS

According to the method of formation, geogrids are subdivided into biaxial (biaxial or dual orientation) and uniaxial (monoaxial or mono-oriented).

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

Uniaxial geogrids made of long elongated cells have high tensile strength in one direction and serve to strengthen the soil during the construction of terrace walls, backfill abutments, slopes and landslide areas.

The types of geogrids determine their features and application.

GEOGETS 20 20

Geogrid 20 20 is used both on the ground and in 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 GEOSET 20 20

The name of indicators		Units		Test results
1) Surface density, not less
2) Maximum load during tensile tests, not less	along
	across
3) Tensile load at a relative elongation of 2%, not less	along
	across
4) Tensile load at a relative elongation of 5%, not less	along
	across
5) Elongation at maximum load, no more:	along
	across
6) Cell size	by lenght
	in width
7) Skewed cells
8) Roll width
9) Roll length
10) Resistance to the action of chemical environments (load from the initial), not less

GEOSET 40 40

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

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

TECHNICAL CHARACTERISTICS OF THE GEOSET 40 40

	Indicator name	Geogrid 40 40
	Cell dimensions
		20, 25, 37, 40, 50
		20, 25, 37, 40, 50
	Roll dimensions
	- roll width, m
	- winding, m
	Raw materials
	- the foundation	polyester
	- impregnation	polymer

GEOSET 50 50

Geogrid with cell parameters 50 50 has properties that make it possible to use it for road construction, as well as for the construction of a covering of air terminal sites.

Geogrid 50 50 is two strands of fiberglass strands connected by a third strand called tufted. 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 THE GEOSHETER 50 50

	Indicator name	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,%
	Raw materials
	- the foundation	polyester
	- impregnation	polymer

GEOSET 100

Geogrid 100 is a road polymer mesh created on the basis of polymer strands interconnected with one more strand - binding.

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

TECHNICAL CHARACTERISTICS OF THE GEOSHETER 100

	Indicator name	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,%
	Surface density, g / m2
	Raw materials
	- the foundation	polyester
	- impregnation	polymer

PRODUCTION OF THE GEOSET

Geoflax geogrid is produced on three different technological lines.
The following types of geogrids can be produced:

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

The productivity of the lines is up to 5 tons per day. Equipment of European and Asian origin has high performance, automated software control for monitoring and promptly making changes to the production process.
Due to the variability of production methods, geonets are obtained not only with different properties, but also from different types of raw materials, with different bonding at the nodes of the geonet. The main requirements for geogrids are:

• Resistant to contaminated waters;
• Resistance to natural factors;
• Resistance to aggressive environments possible under operating conditions;
• UV resistance;
• Strength and stability of the geogrid properties.

WHICH GEOGETS TO CHOOSE?

The question arises from the variety of types and sizes of geonets. Which 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 forming the cells. As a rule, geonets, regardless of the type, are used in construction, landscaping, and ground leveling. Geonets are used to reinforce, separate and combat erosion processes. Having decided on the purpose of use, you need to select a specific type of geogrid - road geogrid, ground geogrid.

When choosing geogrids based on the initial properties of raw materials, one should focus on the characteristics of the resistance of a given material to hydro, bio, chemical and thermal effects.

MAIN PROPERTIES OF SYNTHETIC FIBERS

Fiberglass geonets are certainly cheaper than PE geonets, although their low elasticity significantly undermines the position. Polyester geonets are strong, do not rot, elastic (tensile strength up to 25%), and are technologically advanced.
For best road construction results, polyester geonets have low tensile to break, and fiberglass meshes with their comparatively high performance are optimal. Due to these differences in properties, technologies for the production of geogrids from multifilament glass rovings with PE fibers in the weft direction have spread.

COMPARATIVE PARAMETERS OF POLYESTER AND FIBERGLASS GEOSETS

Glass geonets are less exploited under negative natural factors and are destroyed much faster than polyester geonets, which potentially operate for more than 100 years.
Fiberglass, with all their high strength characteristics, break down and age intensively during prolonged interaction with groundwater and negative temperatures inherent in Russian conditions, therefore, they require additional protection.
But polyester geonets 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. Geonets are usually impregnated with polymers, plastisols or bituminous dispersions. To work in the ground, the geogrid is impregnated with polyvinyl chloride, in the structure of the pavement - with bitumen.

The low level of creep of polyester and polyester in the threads of the geogrid sets it apart from the 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 as an unobstructed binder, the geogrid is supplemented with non-woven geotextiles.

Geosynthetic materials in road construction are obligatory for use when laying roads in permafrost regions, deserts, peat bogs, swamps, in other difficult geological conditions, as well as in soils of technogenic origin. At the same time, the use of geo-synthetic materials significantly reduces the cost of preparing the area for the construction of roads for vehicles, since there is no need to carry out some work that is quite laborious and expensive, for example, lowering the groundwater level or strengthening slopes.

Geosynthetics in road construction

Geotextile mesh, geogrids, as well as non-woven geotextile fabrics are mainly used to reinforce the road bed, as they are made from very strong polymers with excellent performance. These materials can perform separation and reinforcing functions, while taking in a point load and distributing it over the widest area of \u200b\u200btheir surface. This ability makes it possible to reduce the occurrence of potholes, cracks, pits and ruts on the surface of the roadway itself. In cross-section, the roadbed device is a multi-layer "pie" in which the duration of the road operation will also depend on the stability and strength of each layer. The use of geosynthetics for their use as interlayers between fill 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, preventing the pushing of crushed stone into soft soil, thereby reducing material consumption and increasing the overall stability of the base, while fractions of crushed stone are fixed in the cells of the geonet and form a composite layer, a composite layer that is well resistant to loads.

Geogrid

Non-woven geotextiles, with which you can even strengthen the shore of a reservoir, are usually laid between sand and gravel. This material does not allow sand particles to penetrate between the larger fractions of crushed stone, preventing this mixing of bulk materials, which significantly reduces their consumption and increases the overall stability of the bulk layers, while performing separation and reinforcing functions. Microscopic holes in the geotextile fabric also give it drainage and filtering properties. Because of them, it is not clogged with the smallest particles of soil, freely passing air and moisture. By its design, a geogrid is a volumetric canvas with cells filled with various bulk materials, depending on the purpose of their use in the construction of certain construction works... Such a lattice gives the roadbed additional rigidity and contributes to an even distribution of the load falling on it. Gesynthetics in construction significantly reduce transport costs, the cost of 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 packed in plastic wrap.

Geogrid Armiset-AS

Application of geogrid Armiset-AS

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

Geogrid advantages:

• Increase of turnaround time of road and airfield pavement
• Reducing the formation of ruts, potholes, ridges, shears and other deformations of the roadway by increasing the tensile strength of the asphalt pavement and ensuring a more even distribution of stress over a larger area.
• Prevention of the reappearance of reflected and fatigue cracks from old to new layers of asphalt concrete pavement
• Reducing the thickness of the layer of asphalt concrete pavement
• The presence of a thin technological substrate that facilitates the unimpeded movement of people and equipment on the surface of the laid material
• The ability to manufacture material according to individual requirements of order

Geogrid types - AS

The problem of durability and crack resistance of asphalt concrete pavements is currently relevant for the majority of automobile and airfield pavements of various categories. With an annual increase in automobile and air traffic, dynamic loads that destroy the road structure are constantly increasing, and therefore the requirements for the strength characteristics of rigid and non-rigid road pavements are constantly becoming more stringent.

When through cracks appear in the asphalt concrete layers, the integrity of the entire pavement is disturbed, the uniform distribution of incoming loads and their redistribution into the underlying layers of the base. As a result, deformations of road pavements and irreversible structural destruction of pavements appear. When reinforcing asphalt concrete pavements, in order to prevent these negative consequences, it is recommended to use a woven polyester geogrid ARMISET-AS in order to increase the transport and operational characteristics of the road, thereby increasing the service life, excluding and also slowing down the process of the appearance of road surface defects (cracks, potholes, ruts). Geogrid ARMISET-AS increases the elastic properties of asphalt concrete, increasing its resistance to tensile forces under prolonged and repeatedly applied loads.

Transportation and storage of geogrid Armiset - AS

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

Receiving and unloading

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

• forklift truck with matching steel support (\u003e 2/3 bale length)

Geotextile woven Armistab

Armistab is a woven polyester geotextile. Geotextile production is carried out using the latest high-tech German equipment.

Armistab - woven polyester geotextile

Application of geotextile Armistab

• Construction of reinforced soil 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 of roads and railways, arrangement of parking lots, taxiways and runways of airfield surfaces
• 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 dissimilar 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;
• The ability to perform work in the winter;
• High resistance to damage during installation;
• High tensile strength at low elongation.
• High level of resistance to microbiological and chemical effects pH 2.0-9.5;
• The ability to manufacture material according to individual customer requirements;

Geotextile laying Armistab

Geotextile ARMISTAB, due to its ability to absorb high tensile loads, as well as when adhering to the ground, when laid in earthen structures, together with compacted soil layers, forms a rather complex and durable structure. Having highest performance tensile strength, woven geotextile ARMISTAB is an indispensable component for reinforcing the subgrade. With a high speed of erection of embankments on heaving and weak soils (clay, peat) and insufficient shear strength of the foundation soil, the risk of a decrease in the bearing capacity of the entire structure increases. Placed between the soil and the 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 earth support structures, woven geotextile AMISTAB greatly facilitates the erection of embankments on weak foundations. Unique characteristics ARMISTAB geofabrics make it possible to multiply the bearing capacity of the soil when erecting breakwaters, dams, piers, and other port facilities for various purposes. In the design and construction of landfill sites, it is believed that excessive stress can lead to cracks in mineral insulating coatings. ARMISTAB geotextile, laid under such a coating, prevents critical deformations of the coating arising from the settling of poured debris or underlying soil. Landfills often have very steep slopes, in which ARMISTAB can also be used as a reinforcing element. Often the reinforcement of very steep slopes or retaining elements is limited by the shear strength of the soil. ARMISTAB allows you to achieve the required stability by reinforcing horizontal layers of geotextile according to the "pie" principle. If it is required to ensure the bending of the landscape and the ARMISTAB acts as an external facing of the structure, a layer of soil is filled with the subsequent sowing of grasses. Summarizing the above, it can be noted that woven geotextile ARMISTAB is indispensable for reinforcing soils with a low bearing capacity, it avoids stopping construction associated with the replacement and long-term consolidation of the soil. There is also an obvious decrease in material costs for the above works. For laying ARMISTAB, no special equipment or special climatic conditions are required.

Geogrid Armiset-SL

Geogrid Armiset-SL

Application of geogrid Armiset-SL:

• Strengthening the coastlines of water bodies, cones of bridges and overpasses.
• Protection of slopes from landslides, wind and rain erosion.
• Strengthening of rock dumps in the process of working out of mines, factories, followed by giving an aesthetic look by sowing grasses.
• Strengthening the slopes of the embankment of the excavation foundation.
• Landscape design (reinforced soil structures, artificial reservoirs etc)
• Strengthening the slopes of embankments and excavations during the construction of roads and railways.

Advantages of the Armiset-SL geogrid:

• Ease of installation: thanks to the elasticity and low weight of the material, it accepts any unevenness of the slope without requiring 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 vegetation layer.
• Resistance to chemical and biological effects pH 2.0-9.5.
• The ability to operate in different temperature ranges (from -60 to +60 degrees), resistance to ultraviolet radiation.
• The large roll width (up to 5.4 m and up to 200 m long) facilitates laying the material along the entire length of the slope without horizontal seams, which forms a single structure.
• The ability to manufacture material according to individual customer requirements.

Laying the geogrid Armiset-SL

When creating disconnected structural layers, slopes or supporting structures, the first step is to level the base layer and then compact it. The subgrade must be cleaned of the remnants of previous structures, trees and stumps after uprooting, sharp objects and large stones. In some cases, it makes sense to additionally lay a geotextile layer as a separator between the base and the bearing layer (or embankment layer).

Cutting the material to length and laying it

Rolls are rolled over the entire area intended for reinforcement and cut to the required length with a knife or scissors. The cut off 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 support structures, the load direction is always perpendicular to the structure axis. This generally also applies to the reinforcement of disconnected structural layers in road construction. Wrinkles should be avoided when laying the material. The material is laid vertically, the maximum permissible deviation is from +/- 1 cm to 1 m. Before applying the bulk material, the canvases should be stretched using stakes or tensioning devices and slightly tightened. In supporting structures or in the construction of slopes, joints of material webs in the direction of reinforcement are not allowed. If joints cannot be avoided, then 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. in cases, for example, in weak ground, - about 50 cm. The overlap can be reduced by using seams. For any type of construction, overlap spots should be covered with a layer of granular non-cohesive material with a thickness of 2 to 7 cm.

Laying bulk material

The movement of vehicles is not allowed on the rolled material sheets not covered from above. The movement of vehicles is allowed only after creating a fill layer with a thickness of at least 0.15 m. The thickness of the fill layer depends on the fill material and the used compaction device, but it should not exceed the maximum value of 0.50 m. Compaction should be carried out carefully and evenly, observing required minimum values \u200b\u200bof the degree of compaction or modulus of deformation.

Geogrid types-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: this is the absence of lightweight types of slope reinforcement, which would occupy a niche between anti-erosion protection by sowing grasses, as well as massive fortifications in the form of slabs or rockfills. The second reason is caused by the need to industrialize structures and fortifications, thereby reducing the volume and labor costs for performing work on the slopes. Since work on the slopes of people and machines is extremely difficult, and sometimes even extremely difficult, for example, slopes with a setting reaching 1: 1.5-1: 2 will serve. In these cases, a flexible structure such as the ARMISET-SL polyester geogrid may be more effective, which is more stable due to its better ability to accept various slope deformations, thereby ensuring better work of the ARMISET-SL material with the ground. ARMISET-SL performs the functions of reinforcement, drainage during the development of the sod layer in the slope parts of embankments and excavations, 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 effective in terms of technical and economic benefits.

Armiset-SL geogrid transportation and storage

Armiset-SL woven geogrid is supplied in widths from 4.20 to 5.40 m per roll. Roll weight - depending on the type of material. Each roll is packed in plastic wrap.

Receiving and unloading

The delivered goods must be checked for identification and possible damage in transit. Place damaged goods aside. The responsible party must sign a deed to confirm receipt of Armiset-SL in good condition. The following attachments can be used for unloading:

• an automatic unloading device on a delivery truck with load belts attached to a steel tubular core (when unloading this, the recipient must carefully check the rolls for damage)
• forklift truck with matching steel support (\u003e 2/3 bale length)
• construction equipment with a stacker or pipe of adequate force to push through the steel core.

Lifting belts, ropes, etc. must not fray rolls and protective packaging. Unloading by simply gripping bales or using simple belts can damage the material and is therefore not permitted. SETTKA is not responsible for damage arising in such cases.

Storage and transportation 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 overloading should be avoided. It is recommended to cover the rolls with tarpaulin to protect them from UV rays. The packaging can only be removed immediately before packing. Use the transport system described above to move the rolls from the storage area to the stacking site. Before shipping, check the protective packaging of each roll for damage.

Geogrid Armiset -RU

Prevention of soil deformation and subsidence.

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

Advantages of geogrid-Armiset-RU:

• Reducing layer thickness inert materials road construction.
• Prevents mixing of components of dissimilar materials of construction.
• Increase in the service life of facilities, increase in the turnaround time of roads and airfields.

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

Types of geogrid-Armiset-RU:

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

To prevent these negative consequences, it is recommended to use the material for reinforcing the bases 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 occurrence of related defects. with insufficient bearing capacity of the bases (cracks, potholes, heaving, ruts). The SETTKA company also produces a composite material under the ARMISET-RU brand - a geocomposite with a non-woven polypropylene or polyester backing (Dornit type). The main features of this material is the possibility of its use as a reinforcing - drainage layer, which will remove excess moisture from the construction of road layers, and also perform the function of reinforcing the base. Depending on the thickness of the non-woven backing (100g / m2, 400g / m2, 800g / m2, etc.), the flow rate and filtration coefficient of water in the road structure depend.

Transportation and storage of geogrid armiset-RU

The Armiset-RU woven geogrid is supplied in widths from 4.20 to 5.40 m per roll. Roll weight - depending on the type of material. Each roll is packed in plastic wrap.

Receiving and unloading

The delivered goods must be checked for identification and possible damage in transit. Place damaged goods aside. The responsible party must sign an act in order to confirm receipt of Armiset-RU in good condition. The following attachments can be used for unloading:

• an automatic unloading device on a delivery truck with load belts attached to a steel tubular core (when unloading this, the recipient must carefully check the rolls for damage)
• forklift truck with matching steel support (\u003e 2/3 bale length)
• construction equipment with a stacker or pipe of adequate force to push through the steel core.

Lifting belts, ropes, etc. must not fray rolls and protective packaging. Unloading by simply gripping bales or using simple belts can damage the material and is therefore not permitted. SETTKA is not responsible for damage arising in such cases.

Storage and transportation 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 overloading should be avoided. It is recommended to cover the rolls with tarpaulin to protect them from UV rays. The packaging can only be removed immediately before packing. Use the transport system described above to move the rolls from the storage area to the stacking site. Before shipping, check the protective packaging of each roll for damage.

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

GEOTEXTILE

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

VOLUME GEORETTE

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 protecting the cones of overpasses, anti-erosion protection of slopes, reinforcing weak foundations, building retaining walls, and arranging temporary roads is solved.

PLANE GEORETTE

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

GEOSET

A geogrid or fiberglass mesh (as it is often called otherwise) is a thread-stitching material consisting of heavy-duty synthetic threads fastened together. The production of such geosynthetics can be carried out with impregnation from bitumen emulsion. The advantage of a 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 of slopes, foundations, slopes).

GEOMEMBRANES

Polymer geomembrane production is made from high quality polyethylene and carbon stabilizer. The elasticity of this geomaterial even at low temperatures allows it to be actively used in waterproofing industrial facilities... Also, 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 volumetric mesh structures that are made of double-twisted galvanized metal mesh. They have hexagonal cells with 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 from floods and avalanches, as well as in landscape design.

GEOTEXTILE

Geotextile refers to a separate class of materials used in road construction in contact with the ground. The special structure, obtained by weaving or mechanically attaching the fibers, gives rise to special characteristics. Traditionally geotextile is made from polyester and polypropylene, there are also materials made from recovered polymers. The third type is much cheaper, but at the same time it loses in its physical and technical properties. The inclusion of natural materials in the canvas reduces moisture resistance, makes the material vulnerable to the effects of organic matter, aggressive chemical environments.