Technical conditions. Anti-erosion geomat "RGK-GMT Geomats technical instructions

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3D MATS
(GEOMATS) MT BRANDS

Specifications

Ufa

2006

Dear Andrey Viktorovich!

Rosavtodor reviewed the materials presented by STEKLONIT OJSC according to the standards of the organization STO 00205009-003-2006 “Grids (geosets) polymer grade PS. Technical conditions" and STO 00205009-002-2006 "Three-dimensional mats (geomat) brand MT. Technical conditions" and coordinates the standards of the organization STO 00205009-003-2006 "Grids (geosets) polymer grade PS. Technical conditions" and STO 00205009-002-2006 "Three-dimensional mats (geomat) brand MT. Technical conditions" in the part relating to highways and structures on them in the presented edition.

Deputy Head S.E. Poleshchuk

The goals and principles of standardization in the Russian Federation are established by Federal Law No. 184-FZ of December 27, 2002 “On Technical Regulation”, and the rules for applying organization standards are GOST R 1.4-2004 “Standardization in the Russian Federation. Organization standards. General provisions"

Standard information

1 DEVELOPED AND INTRODUCED Open Joint Stock Company "STEKLONiT"

2 APPROVED AND PUT INTO EFFECT Open Joint Stock Company "STEKLONiT" by order dated November 2, 2006. No. 619

3 AGREED BY SOYUZDORNII OJSC

Content

STO 00205009-002-2006

3D MATS

(GEOMATS)

Specifications

Date of introduction 02.11.2006

1 area of ​​use

This standard applies to three-dimensional mats (geomats) of the MT brand (hereinafter referred to as geomats) produced by OJSC STEKLONiT. Geomats are used as reinforcing components to create stable vegetation cover in order to prevent erosion processes of earthen structures:

Slopes, embankments, excavations, ditches;

Bridge cones;

Slopes of reinforced soil retaining walls and noise barriers;

Landslide slopes of ravines and structures in landslide areas;

Coastlines and water edges;

Watercourses;

Vegetation layer on rocky slopes and smooth surfaces.

2 Normative references

This standard uses normative references to the following standards:

5.3 Geomats are produced in black with a nominal width of 300 cm and a length of 50 meters.

By agreement with the consumer, the length of the web in the roll can be changed.

5.4 Raw materials and materials used for the production of geomats must comply with the regulatory documentation of the manufacturer (STO, quality certificate, certificate of conformity).

5.5 Geomat sheets must be supplied tightly wound in rolls. The ends of the rolls must be even. Protrusions with a height of no more than 50 mm are allowed.

There must be one geomat panel per roll; multiple panels are not allowed.

5.6 In appearance, the geomat must correspond to its standard sample. Holes with an area of ​​more than 300 mm2, separations with a width of more than 10 mm and a length of more than 100 mm, leakage with an area of ​​more than 300 mm2, and foreign inclusions are not allowed on the geomat sheet.

Areas of defects are marked as conditional cuts and are not taken into account in the length of commercial products.

5.7 Geomats must be stable in environments with pH from 3 to 10 inclusive, and the residual breaking load must be at least 90%.

5.8 Geomats must be resistant to mold fungi, the fungal resistance index is not higher than PG 113 according to GOST 9.049.

5.9 Geomats must be flexible and withstand bending by 180° without visually observable destruction of fibers at a bending radius of 10 mm and a temperature of - 5°C.

5.10 Geomats must be frost-resistant and withstand 25 freeze-thaw cycles in distilled water (from -15 °C to +18 °C), while the reduction in breaking load should not exceed 10%.

5.11 Packaging and labeling

5.12 Rolls of geomats are packaged in polyethylene film GOST 10354, tied with GOST 17308 twine or packing tape or other dressing material. Rolls packed in film are installed vertically in a pallet bag or placed horizontally on a pallet, but no more than 7 pieces. in height. By agreement with the consumer, another packaging method that does not degrade the quality of geomats is allowed.

5.13 A label is attached to each roll of geomat indicating:

Name of the manufacturer and (or) its trademark;

Geomat brands;

Lot numbers;

Number of meters per roll;

Dates of manufacture;

Symbols of this standard.

5.14 The service life of geomats is 30 years, provided that the requirements set out in the “Operating Instructions” section of this standard are met.

6 Safety requirements

6.1 When manufacturing geomats, it is necessary to comply with the safety requirements specified in GOST 12.3.030, GOST 12.1.005, GOST 12.1.044.

6.2 Geomats under storage, installation and operation conditions do not emit toxic substances into the environment and do not have a harmful effect on the human body upon direct contact. Working with geomats does not require special precautions.

6.3 Geomats belong to the “combustible” (combustible) group according to GOST 12.1.044 and are characterized by the following indicators:

Flammability group - G4 according to GOST 30244;

Flammability group - B3 according to GOST 30402;

Flame propagation group - RP4 according to GOST 30444 (GOST R 51032).

The ignition temperature of geomat is not lower than 300 °C. Geomats are not explosive.

6.4 When extinguishing a fire, use fire extinguishers of any kind, water, fire extinguishing compounds, fire-extinguishing foams, inert gases, sand, asbestos blankets. It is necessary to extinguish a fire using gas masks of grade B or BKF with an aerosol filter in accordance with GOST 12.4.121.

7 Environmental protection

7.1 When interacting with the environment under natural operating conditions, geomats do not emit harmful substances into the environment.

7.2 Waste generated during the installation and operation of geomats must be disposed of in accordance with SanPiN 2.1.7.1322.

8 Acceptance rules

8.1 Acceptance of geomats should be carried out in batches.

A batch is considered to be the number of rolls of geomats of the same brand, manufactured according to the same technological regulations, one recipe and accompanied by one quality document. Maximum batch size is 100 rolls.

The quality document states:

Name and (or) trademark of the manufacturer, legal address;

Symbol of geomat and designation of these service stations;

Batch number and date of manufacture;

Results of acceptance tests;

Number of rolls or square meters per batch;

Storage conditions and periods;

OTK stamp.

8.2 To control the quality of geomats for compliance with the requirements of this standard, acceptance tests are carried out. From each batch of geomats, 5% of rolls are selected by random sampling, but not less than 3 rolls. From each selected roll, a sample is cut along the entire width of the web in the roll and 1 m along its length for subsequent cutting of samples during testing.

8.3 Acceptance tests are carried out according to the following indicators:

Appearance of geomats, presence of defects;

Roll winding quality;

Thickness, width and length of the geomat sheet;

Surface density of geomat fabric;

Breaking load (in longitudinal and transverse directions);

Elongation at break (in longitudinal and transverse directions);

Marking;

Package.

8.4 If the test results are unsatisfactory for at least one indicator, a double number of rolls newly selected from the same batch should be checked for this indicator.

The results of repeated tests are final. If the results of repeated tests are unsatisfactory, the entire batch is rejected.

A rejected batch can be subjected to 100% control in all respects for sorting.

8.5 Periodic tests are carried out on every tenth batch in the scope of acceptance tests and additionally, in terms of flexibility at low temperatures.

8.6 When changing raw materials, recipes or manufacturing technology of geomats, type tests are carried out. The type test program includes the full scope of acceptance and periodic tests and, in addition, the following tests:

For chemical resistance;

For resistance to mold fungi;

For frost resistance.

9 Test methods

9.1 Control of the appearance of the geomat and the presence of defects is carried out visually during the production and winding of the geomat into a roll by comparison with a reference sample.

9.2 The width of the geomat is measured along the edges of the canvas with a metal tape measure according to GOST 7502. The length of the geomat is determined by a meter counter installed on the winding device with a measurement error of no more than 1%.

9.3 The thickness of the geomat is determined according to GOST R 50276 at a pressure on the sample of 2 kPa.

9.4 Determination of surface density is carried out according to GOST R 50277.

9.5 Breaking loads and elongations at break are determined according to ISO 10319 (specimen width not less than 200 mm, distance between clamps not less than 100 mm).

9.6 Loss of strength when testing for frost resistance is determined using the method described below.

From the sample selected for laboratory testing, 6 samples are cut to determine the breaking load in the initial state and after frost resistance tests.

Preliminary tensile load tests are carried out on the original samples in accordance with ISO 10319.

Three strips of geomat are cut in the longitudinal and transverse directions and placed on the bottom of a metal bath. Distilled water is poured into the bath so that the water level above the samples is not lower than 15 mm. The bath with samples is placed in a freezer, in which the temperature is set to (minus 15±2) °C, and kept under these conditions for 8 hours. After this, the sample bath is removed from the freezer and completely defrosted for 16 hours at room temperature (18-30) °C.

Carry out 25 cycles of freezing and thawing.

Then the samples are removed from the bath, dried in an oven at a temperature of (60±2)°C for 16 hours, and the samples are tested for tensile load according to ISO 10319.

The decrease in strength after defrosting in % is calculated using the formula:

where: R is the breaking load of the sample in the initial state;

R 1 - breaking load of the sample after frost resistance tests.

The value of strength loss when testing for frost resistance is taken as the arithmetic mean of the test results of all samples, with an accuracy of 1%.

9.7 Resistance to chemical media is determined according to GOST 12020 method 2 with exposure of samples for 7 days in a solution of sulfuric acid with pH 3 and in a solution of sodium hydroxide with pH 10.

9.8 Resistance to mold fungi is determined according to GOST 9.049.

9.9 Flexibility at negative temperatures is determined according to GOST 2678 (clause 3.9 at R=10 and temperature minus 5 °C).

9.10 Requirements for equipment and measuring instruments:

a tensile testing machine with vice clamps for samples with a width of at least 200 mm, with a constant rate of load increase, with a load measurement error of no more than ±1%;

drying cabinet with heating temperature up to 350 °C;

electronic scales with weighing accuracy ±0.3 mg according to GOST 29329;

metal measuring tape according to GOST 7502 with measurement error ±1 mm.

10 Transportation and storage

10.1 Geomats are transported by all types of covered transport in compliance with the transportation rules in force for this type of transport.

10.2 Transportation should be carried out at positive ambient temperatures.

It is allowed to transport geomat rolls in rigid containers (containers, wooden boxes) at an ambient temperature of at least minus 5 °C.

10.3 Geomats in rolls are stored under sheds or in warehouses in horizontal or vertical positions at a temperature not lower than minus 5 °C.

10.4 It is not allowed to store rolls of geomats in a horizontal position, when storing more than 7 rolls in height, and in a vertical position - more than 2 rolls in height, placing other loads and materials on top.

10.5 Transportation and storage of geomats in close proximity to flammable substances, heating devices and other fire hazardous sources is not allowed in accordance with GOST 12.1.004.

11 Operating instructions

11.1 Geomats are used in macroclimatic regions of temperate and cold climates (UCL), placement category - 5 (in soil) according to GOST 15150 at operating temperatures not lower than minus 10 ° C.

11.2 Geomats are not intended for use in technological operations where interaction of geomats with materials heated above 120 °C is possible.

11.3 Installation and operation of geomats is carried out in accordance with the requirements of the design documentation, taking into account the requirements,.

11.4 Installation of geomats is not allowed at ambient temperatures below 0 °C.

12 Manufacturer's warranty

12.1 The manufacturer guarantees that the geomats produced comply with this STO.

12.2 The guaranteed shelf life of geomats is 2 years from the date of manufacture, subject to compliance with transportation and storage requirements.

12.3 After the expiration of the storage period, geomats can be used for their intended purpose after testing for compliance with the requirements of this standard.

Appendix A
(required)

Table A.1 - Main dimensions and physical and mechanical properties of geomats

This standard applies to three-dimensional mats (geomat) of the MT brand produced by OJSC STEKLONiT. Geomats are used as reinforcing components to create stable vegetation cover in order to prevent erosion processes of earthen structures: - slopes, embankments, excavations, ditches; - bridge cones; - slopes of reinforced soil retaining walls and noise barriers; - landslide slopes of ravines and structures in landslide areas; - coastlines and water edges; - watercourses; - plant layer on rocky slopes and smooth surfaces

public corporation
"STEKLONiT"

3D MATS
(GEOMATS) MT BRANDS

Specifications

Ufa

2006

The goals and principles of standardization in the Russian Federation are established by Federal Law of December 27, 2002 No.184-FZ “On Technical Regulation”, and the rules for applying the organization’s standards are GOST R 1.4-2004 “Standardization in the Russian Federation. Organization standards. General provisions"

Standard information

1 DEVELOPED AND INTRODUCED by Open Joint Stock Company "STEKLONiT"

2 APPROVED AND ENTERED INTO EFFECT by the Open Joint-Stock Company "STEKLONiT" by order dated November 2, 2006 No. 619

3 AGREED with Rosavtodor 04.09.2007 No. 01-29/8220

4 Information about changes To present standard annually placed on official website OJSC "STEKLONiT" www. steklonit. ruV networks Internet, A text changes And amendments - monthly. IN case revision (replacements) or cancellations present standard notification will posted on above website

STO 00205009-002-2006

ORGANIZATION STANDARD

MATS 3D
(GEOMATS)

Specifications

Date of introduction 02.11.2006

1 area of ​​use

This standard applies to three-dimensional mats (geomats) of the MT brand (hereinafter referred to as geomats) produced by OJSC STEKLONiT. Geomats are used as reinforcing components to createsustainable vegetation cover in order to prevent erosion processes of earthen structures:

Slopes, embankments, excavations, ditches;

Bridge cones;

Slopes of reinforced soil retaining walls and noise barriers;

Landslide slopes of ravines and structures in landslide areas;

Coastlines and water edges;

Watercourses;

Vegetation layer on rocky slopes and smooth surfaces.

2 Normative references

This standard uses normative references to the following standards:

GOST 9.049-91 Polymer materials and their components. Laboratory test methods for resistance to mold fungi

GOST 12.1.004-91 SSBT. Fire safety. General requirements

GOST 12.1.005-88 General sanitary and hygienic requirements for working air zones

GOST 12.1.044-89 Fire and explosion hazard of substances and materials. Nomenclature of indicators and methods for their determination

GOST 12.3.030-83 SSBT. Plastics processing. Safety requirements.

GOST 12.4.121-83 SSBT. Industrial filter gas masks. Specifications

GOST 2678-94 Roll materials, roofing and waterproofing. Test methods

GOST 7502-98 Metal measuring tapes. Specifications

GOST 10354-82 Polyethylene film. Specifications

GOST 12020-72 Plastics. Method for determining resistance to chemical media

GOST 15150 Machines, instruments and other technical products. Versions for different climatic regions. Categories, operating, storage and transportation conditions regarding the impact of environmental climatic factors

GOST 17308-88 Twines. Specifications

GOST 29329-92 Scales for static weighing. General technical requirements

GOST R 50276-92 Geotextile materials. Method for determining thickness at certain pressures

GOST R 50277-92 Geotextile materials. Method for determining surface density

GOST 30244-94 Construction materials. Flammability test methods

GOST 30402 Construction materials. Flammability test method

GOST 30444 (GOST R 51032) Construction materials. Flame propagation test method

SanPiN 2.1.7.1322-03 Hygienic requirements for the disposal and disposal of production and consumption waste

ISO 10319-93 Geotextiles. Tensile tests using wide tape.

Note - When using this standard, it is advisable to check the validity of the reference standards - on the official website of the national body of the Russian Federation for standardization on the Internet or the annually published information index “National Standards”, which was published as of January 1 of the current year, and according to the corresponding monthly information indexes , published this year. If the reference document is replaced (changed), then when using this standard you should be guided by the replaced (changed) document. If the reference document is canceled without replacement, then the provision in which a reference to it is given applies to the part that does not affect this reference.

3 Terms and definitions

The following terms with corresponding definitions are used in this standard.

3.1 geomats: Three-dimensional permeable structures made of polymeric materials and/or other synthetic or natural elements, interconnected by thermal, mechanical or other means, which are used to secure soil parts, grass roots or small plants, and are also used in geotechnics or other areas of construction. Geomats are manufactured in the form of regular or chaotic three-dimensional fiber structures, either in the form of honeycomb or other types of structures and strips of geotextiles or polymer sheets.

3.2 hole: Local displacement of the geomat structure as a result of disturbancetechnological process, mechanical impact.

3.3 sliding: Lobar stripes in the form of a slit.

3.4 conditional cut: Areas of geomat with unacceptable defects.

3.5 wicking: Area of ​​continuous fusion of geomat structure.

4 Classification, symbols, description of geomats

4.1 MT brand geomats are made from polypropylene using the extrusion method. Carbon black and black pigments can be used as light-stabilizing and coloring additives in an amount of no more than 3% of the total mass of raw materials.

4.2 Structure of the symbol for geomats type MT:

4.3 Designation example:

MT 10-450(300) - three-dimensional mats, material thickness 10 mm, surface density of the material 450 g/m2, web width 300 cm.

5 Technical requirements

5.1 Geomats must comply with the requirements of this standard and be manufactured according to technological regulations approved in the prescribed manner.

5.2 The main dimensions and physical and mechanical characteristics of geomats must correspond to those indicated in the table.

5.3 Geomats are produced in black with a nominal width of 300cm and 50 meters long.

By agreement with the consumer, the length of the web in the roll can be changed.

5.4 Raw materials and materials used for the production of geomats must comply with the regulatory documentation of the manufacturer (STO, quality certificate, certificate of conformity).

5.5 Geomat sheets must be supplied tightly wound in rolls. The ends of the rolls must be even. Protrusions with a height of no more than 50 mm are allowed.

There must be one geomat panel per roll; multiple panels are not allowed.

5.6 In appearance, the geomat must correspond to its standard sample. Holes with an area of ​​more than 300 mm2, separations with a width of more than 10 mm and a length of more than 100 mm, leakage with an area of ​​more than 300 mm2, and foreign inclusions are not allowed on the geomat sheet.

Areas of defects are marked as conditional cuts and are not taken into account in the length of commercial products.

5.7 Geomats must be stable in environments with pH from 3 to 10 inclusive, and the residual breaking load must be at least 90%.

5.8 Geomats must be resistant to mold fungi, fungi indexThe capacity is not higher than PG 113 according to GOST 9.049.

5.9 Geomats must be flexible and withstand bending through 180° without visually observable destruction of fibers at a bending radius of 10 mm and a temperature of -5 °C.

5.10 Geomats must be frost-resistant and withstand 25 freeze-thaw cycles in distilled water (from -15 °C to +18 °C), while the reduction in breaking load should not exceed 10%.

5.11 Packaging and labeling

5.12 Rolls of geomats are packaged in polyethylene film GOST 10354, tied with GOST 17308 twine or packing tape or other dressing material. Rolls packed in film are installed vertically in a pallet bag or placed horizontally on a pallet, but no more than 7 pieces. in height. By agreement with the consumer, another packaging method that does not degrade the quality of geomats is allowed.

5. 13 A label is attached to each roll of geomat indicating:

Name of the manufacturer and (or) its trademark;

Geomat brands;

Lot numbers;

Number of meters per roll;

Dates of manufacture;

Symbols of this standard.

5.14 The service life of geomats is 30 years, provided that the requirements set out in the “Operating Instructions” section of this standard are met.

6 Safety requirements

6.1 When manufacturing geomats, it is necessary to comply with the safety requirements specified in GOST 12.3.030, GOST 12.1.005, GOST 12.1.044.

6.2 Geomats under storage, installation and operation conditions do not emit toxic substances into the environment and do not have a harmful effect on the human body upon direct contact. Working with geomats does not require special precautions.

6.3 Geomats belong to the “combustible” (combustible) group according to GOST 12.1.044 and are characterized by the following indicators:

Flammability group - G4 according to GOST 30244;

Flammability group - B3 according to GOST 30402;

Flame propagation group - RP4 according to GOST 30444 (GOST R 51032).

The ignition temperature of geomat is not lower than 300 °C. Geomats are not explosive.

6.4 When extinguishing a fire, use fire extinguishers of any kind, water, fire extinguishing compounds, fire-extinguishing foams, inert gases, sand, asbestos blankets. It is necessary to extinguish a fire using gas masks of grade B or BKF with an aerosol filter in accordance with GOST 12.4.121.

7 Environmental protection

7.1 When interacting with the environment under natural operating conditions, geomats do not emit harmful substances into the environment.

7.2 Waste generated during the installation and operation of geomats must be disposed of in accordance with SanPiN 2.1.7.1322.

8 Acceptance rules

8.1 Acceptance of geomats should be carried out in batches.

A batch is considered to be the number of rolls of geomats of the same brand, manufactured according to the same technological regulations, one recipe and accompanied by one quality document. Maximum batch size is 100 rolls.

The quality document states:

Name and (or) trademark of the manufacturer, legal address;

Symbol of geomat and designation of these service stations;

Batch number and date of manufacture;

Results of acceptance tests;

Number of rolls or square meters per batch;

Storage conditions and periods;

OTK stamp.

8.2 To control the quality of geomats for compliance with the requirements of this standard, acceptance tests are carried out. From each batch of geomats, 5% of rolls are selected by random sampling, but not less than 3 rolls. From each selected roll, a sample is cut along the entire width of the web in the roll and 1 m along its length for subsequent cutting of samples during testing.

8.3 Acceptance tests are carried out according to the following indicators:

Appearance of geomats, presence of defects;

Roll winding quality;

Thickness, width and length of the geomat sheet;

Surface density of geomat fabric;

Breaking load (in longitudinal and transverse directions);

Elongation at break (in longitudinal and transverse directions);

Marking;

Package.

8.4 If the test results are unsatisfactory for at least one indicator, a double number of rolls newly selected from the same batch should be checked for this indicator.

The results of repeated tests are final. If the results of repeated tests are unsatisfactory, the entire batch is rejected. A rejected batch can be subjected to 100% control for all criteria for sorting.

8.5 Periodic tests are carried out on every tenth batch in the scope of acceptance tests and additionally, in terms of flexibility at low temperatures.

8.6 When changing raw materials, recipes or manufacturing technology of geomats, type tests are carried out. The type test program includes the full scope of acceptance and periodic tests and, in addition, the following tests:

For chemical resistance;

For resistance to mold fungi;

For frost resistance.

9 Test methods

9.1 Control of the appearance of the geomat and the presence of defects is carried out visually during the production and winding of the geomat into a roll by comparison with a reference sample.

9.2 The width of the geomat is measured along the edges of the canvas with a metal tape measure according to GOST 7502. The length of the geomat is determined by a meter counter installed on the winding device with a measurement error of no more than 1%.

9.3 The thickness of the geomat is determined according to GOST R 50276 at a pressure on the sample of 2 kPa.

Determination of surface density is carried out according to GOST R 50277.

9.5 Breaking loadsand and elongation at break is determined by ISO 10319 (sample width not less than 200 mm, distance between clamps not less than 100 mm).

9.6 Loss of strength when testing for frost resistance is determined using the method described below.

From the sample taken for laboratory tests, cut out 6 samples to determine the breaking load in the initial state and after testing for frost resistance.

Preliminary tests for breaking load are carried out for the initial samples according to ISO 10319.

Three strips of geomat are cut in the longitudinal and transverse directions and placed on the bottom of a metal bath. Distilled water is poured into the bath so that the water level above the samples is not lower than 15 mm. The bath with samples is placed in a freezer, in which the temperature is set to (minus 15 ± 2) °C, and kept under these conditions for 8 hours. After this, the sample bath is removed from the freezer and completely defrosted for 16 hours at room temperature (18 - 30) °C.

Carry out 25 cycles of freezing and thawing. Then the samples are removed from the bath, dried in an oven at a temperature of (30 ± 2) °C for 16 hours, and the samples are tested for tensile load according to ISO 10319.

The decrease in strength after defrosting in % is calculated using the formula:

Where: R- breaking load of the sample in the initial state;

R 1 - breaking load of the sample after frost resistance tests.

The value of strength loss when testing for frost resistance is taken as the arithmetic mean of the test results of all samples, with an accuracy up to 1%.

9.7 Resistance to chemical media is determined according to GOST 12020 method 2 with exposure of samples for 7 days in a solution of sulfuric acid with pH 3 and in a solution of sodium hydroxide with pH 10.

9.8 Resistance to mold fungi is determined according to GOST 9.049.

9.9 Flexibility at negative temperatures is determined according to GOST 2678 (clause 3.9 atR = 10 and temperature minus 5 °C).

9.10 Requirements for equipment and measuring instruments:

tensile testing machine with vice clamps for samples with a width of at least 200 mm, with a constant rate of load increase, with a load measurement error of no more than ± 1%;

drying cabinet with heating temperature up to 350°C;

electronic scales with weighing accuracy ± 0.3 mg according to GOST 29239;

metal measuring tape according to GOST 7502 with measurement error ± 1 mm.

10 Transportation and storage

10.1 Geomats are transported by all types of covered transport in compliance with the transportation rules in force for this type of transport.

10.2 Transportation should be carried out at positive ambient temperatures.

It is allowed to transport geomat rolls in rigid containers (containers, wooden boxes) at an ambient temperature of at least minus 5 °C.

10.3 Geomats in rolls are stored under sheds or in warehouses in horizontal or vertical positions at a temperature not lower than minus 5°C.

10.4 It is not allowed to store rolls of geomats in a horizontal position, when storing more than 7 rolls in height, and in a vertical position - more than 2 rolls in height, placing other loads and materials on top.

10.5 Transportation and storage of geomats in close proximity to flammable substances, heating devices and other fire hazardous sources is not allowed in accordance with GOST 12.1.004.

11 Operating instructions

11.1 Geomats are used in macroclimatic regions of temperate and cold climates (CCL), placement category - 5 (in soil) according to GOST 15150 at operating temperatures not lower than minus 10 ° C.

11.2 Geomats are not intended for use in technological operations where interaction of geomats with materials heated above 120 °C is possible.

11.3 Installation and operation of geomats is carried out in accordance with the requirements of the design documentation, taking into account the requirements,.

11.4 Installation of geomats is not allowed at ambient temperatures below 0 °C.

12 Manufacturer's warranty

12.1 The manufacturer guarantees that the geomats produced comply with this STO.

12.2 The guaranteed shelf life of geomats is 2 years from the date of manufacture, subject to compliance with transportation and storage requirements.

12.3 After the expiration of the storage period, geomats can be used for their intended purpose after testing for compliance with the requirements of this standard.

Appendix A
(required)

Table A.1 - Main dimensions and physical and mechanical properties of geomats

/ Laying geomats

Instructions for laying geomat

In order for building structures to gain greater strength and reliability, construction companies widely use geosynthetic materials, which contain one or more polymers of natural or artificial origin. The main advantages of these materials are high durability, resistance to adverse environmental conditions, as well as microbes and fungi, increased adhesion and many others.

In order to effectively strengthen banks and slopes, eliminating the possibility of landslides, a material such as geomat is widely used. With its help, you can protect the soil from exposure to large amounts of moisture, preventing erosion and deformation. In order for the use of geomat to be as effective as possible, it is necessary to adhere to a certain technology that contributes to the creation of a reliable and durable reinforcing structure.

All work on laying geomat is divided into three main stages - preparatory, main and final.

Preparatory work involves leveling and cleaning the working surface, as well as strengthening the soil. To install fasteners, anchor trenches are created along the edges.

The main stage is to lay the geomat over the entire required surface of the slope. The laid material is reinforced with anchors at a distance of one meter. If you subsequently plan to plant shrubs, willow spears are used for fastening. Geomat sheets are laid in such a way that each subsequent one overlaps the previous one. These areas must be secured every half meter. After installation is completed, additional fastening is carried out at the rate of two anchors per square meter. The anchor trenches are then backfilled and drainage systems are installed.

The final stage is planting. The sown seeds are covered with a fertile layer of soil five centimeters thick. When strengthening the banks of a body of water, it is more advisable to use crushed stone to fill the mats.

Thus, the use of geomats makes it possible to effectively strengthen slopes and banks without disturbing the ecology and natural landscape. The widespread use of this method is due to the possibility of its use in any conditions and high efficiency.

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1 Three-dimensional mats (geomat) brand MT. Technical conditions Open joint-stock company "STEKLONiT" ORGANIZATION STANDARD 3D MATS (GEOMATS) MT BRANDS Technical conditions Ufa 2006 MINISTRY OF TRANSPORT OF THE RUSSIAN FEDERATION FEDERAL ROAD AGENCY (ROSAVTODOR), Moscow, st. Bochkova, house 4 Telephone: , fax: /8220 General Director of OJSC "STKLONIT" A.V. Kodintsevu st. Tramway, building 15, Ufa, Dear Andrey Viktorovich! Rosavtodor reviewed the materials presented by STEKLONIT OJSC according to the standards of the organization STO “Grids (geosets) polymer grade PS. Technical conditions" and STO "Three-dimensional mats (geomat) brand MT. Technical conditions" and coordinates the standards of the organization STO "Grids (geosets) polymer grade PS. Technical conditions" and STO "Three-dimensional mats (geomat) brand MT. Technical conditions" in the part relating to highways and structures on them in the presented edition. Deputy Head S.E. Poleshchuk The goals and principles of standardization in the Russian Federation are established by Federal Law of December 27, 2002 184-FZ “On Technical Regulation”, and the rules for applying the organization’s standards are GOST R “Standardization in the Russian Federation. Organization standards. General provisions" Information about the standard 1 DEVELOPED AND INTRODUCED by the Open Joint Stock Company "STEKLONiT" 2 APPROVED AND ENTERED INTO EFFECT by the Open Joint Stock Company "STEKLONiT" by order of November 2, 2006 AGREED BY JSC "SOYUZDORNII" Contents 1 Scope 2 Regulatory references 3 Terms and definitions 4 Classification, symbols, description of geomats 5 Technical requirements 6 Safety requirements 7 Environmental protection 8 Acceptance rules 9 Test methods 10 Transportation and storage 11 Operating instructions

2 11 Operating instructions 12 Manufacturer's guarantees Appendix A (mandatory) Table A.1 - Main dimensions and physical and mechanical characteristics of geomats Bibliography ORGANIZATIONAL STANDARD THREE-DIMENSIONAL MATS Technical specifications Date of introduction Scope of application (GEOMATS) STO This standard applies to three-dimensional mats (geomat) brand MT (hereinafter referred to as geomats) produced by OJSC STEKLONiT. Geomats are used as reinforcing components to create stable vegetation cover in order to prevent erosion processes of earthen structures: - slopes, embankments, excavations, ditches; - bridge cones; - slopes of reinforced soil retaining walls and noise barriers; - landslide slopes of ravines and structures in landslide areas; - coastlines and water edges; - watercourses; - plant layer on rocky slopes and smooth surfaces. 2 Normative references This standard uses normative references to the following standards: GOST Polymer materials and their components. Methods of laboratory testing for resistance to mold fungi GOST SSBT. Fire safety. General requirements GOST General sanitary and hygienic requirements for the air in the working area GOST Fire and explosion hazard of substances and materials. Nomenclature of indicators and methods for their determination GOST SSBT. Plastics processing. Safety requirements. GOST SSBT. Industrial filter gas masks. Technical specifications GOST Roll, roofing and waterproofing materials. Test methods GOST Metal measuring tapes. Technical specifications GOST Polyethylene film. Technical specifications GOST Plastics. Method for determining resistance to chemical media GOST Machines, instruments and other technical products. Versions for different climatic regions. Categories, conditions of operation, storage and transportation in terms of the impact of climatic factors of the external environment GOST Twines. Technical specifications GOST Scales for static weighing. General technical requirements GOST R Geotextile materials. Method for determining thickness at certain pressures GOST R Geotextile materials. Method for determining surface density GOST Construction materials. Methods of testing for flammability GOST Construction materials. Test method for flammability GOST (GOST R 51032) Construction materials. Test method for flame propagation SanPiN Hygienic requirements for the disposal and disposal of production and consumption waste ISO Geotextiles. Tensile tests using wide tape. Note - When using this standard, it is advisable to check the validity of the reference standards - on the official website of the national body of the Russian Federation for standardization on the Internet or the annually published information index "National Standards", which was published as of January 1 of the current year, and according to the corresponding monthly published information indexes published in the current

3 years old. If the reference document is replaced (changed), then when using this standard you should be guided by the replaced (changed) document. If the reference document is canceled without replacement, then the provision in which a reference to it is given applies to the part that does not affect this reference. 3 Terms and definitions The following terms with their corresponding definitions are used in this standard. 3.1 geomats: Three-dimensional permeable structures made of polymeric materials and/or other synthetic or natural elements, interconnected by thermal, mechanical or other means, which are used to secure soil parts, grass roots or small plants, and are also used in geotechnics or other fields construction. Geomats are made in the form of regular or chaotic three-dimensional fiber structures, or in the form of honeycombs, or other types of structures from geotextile strips or polymer sheets. 3.2 hole: Local displacement of the geomat structure as a result of a disruption in the technological process or mechanical impact. 3.3 sliding: Lobe strips in the form of a slit. 3.4 conditional cut: Areas of geomat with unacceptable defects. 3.5 wicking: Area of ​​continuous fusion of the geomat structure. 4 Classification, symbols, description of geomats 4.1 MT brand geomats are made from polypropylene using the extrusion method. Carbon black and black pigments can be used as light-stabilizing and coloring additives in an amount of no more than 3% of the total mass of raw materials. 4.2 Structure of the symbol for geomats type MT: 4.3 Designation example: MT (300) - three-dimensional mats, material thickness 10 mm, surface density of the material 450 g/m2, web width 300 cm. 5 Technical requirements 5.1 Geomats must comply with the requirements of this standard and be manufactured according to technological regulations approved in the prescribed manner. The main dimensions and physical and mechanical characteristics of geomats must correspond to those indicated in table A Geomats are produced in black with a nominal width of the web of 300 cm and a length of 50 meters. By agreement with the consumer, the length of the web in the roll can be changed. 5.4 Raw materials and materials used for the production of geomats must comply with the regulatory documentation of the manufacturer (STO, quality certificate, certificate of conformity). 5.5 Geomat sheets must be supplied tightly wound in rolls. The ends of the rolls must be even. Protrusions with a height of no more than 50 mm are allowed. There must be one geomat panel per roll; multiple panels are not allowed. 5.6 In appearance, the geomat must correspond to its standard sample. Holes with an area of ​​more than 300 mm2, separations with a width of more than 10 mm and a length of more than 100 mm, leakage with an area of ​​more than 300 mm2, and foreign inclusions are not allowed on the geomat sheet. Areas of defects are marked as conditional cuts and are not taken into account in the length of commercial products. 5.7 Geomats must be stable in environments with pH from 3 to 10 inclusive, and the residual breaking load must be at least 90%. 5.8 Geomats must be resistant to mold fungi, the fungal resistance index is not higher than PG 113 according to GOST Geomats must be flexible and withstand bending by 180 without visually observable destruction of fibers at a bending radius of 10 mm and a temperature of - 5 C Geomats must be frost-resistant and withstand 25 cycles freezing - thawing in distilled water (from -15 C to +18 C), while the reduction in breaking load should not exceed 10% Packaging and labeling 5.12 Rolls of geomats are packed in polyethylene film GOST 10354, tied with GOST twine or packing tape, other dressing material . Rolls packed in film are installed vertically in a pallet bag or placed horizontally on a pallet, but no more than 7 pieces. in height. By agreement with the consumer, another packaging method that does not degrade the quality of geomats is allowed.

4 5.13 A label is attached to each roll of geomat indicating: - the name of the manufacturer and (or) its trademark; - grades of geomat; - batch number; - number of meters per roll; - date of manufacture; - designations of this standard The service life of geomats is 30 years, provided that the requirements set out in the section “Operating Instructions” of this standard are met. 6 Safety requirements 6.1 When manufacturing geomats, it is necessary to comply with the safety requirements specified in GOST, GOST, GOST Geomats under storage, installation and operation conditions do not emit toxic substances into the environment and do not have a harmful effect on the human body upon direct contact. Working with geomats does not require special precautions. 6.3 Geomats belong to the “flammable” (combustible) group according to GOST and are characterized by the following indicators: - flammability group - G4 according to GOST 30244; - flammability group - B3 according to GOST 30402; - flame propagation group - RP4 according to GOST (GOST R 51032). The ignition temperature of geomat is not lower than 300 C. Geomats are not explosive. 6.4 When extinguishing a fire, use fire extinguishers of any kind, water, fire extinguishing compounds, fire-extinguishing foams, inert gases, sand, asbestos blankets. It is necessary to extinguish a fire in gas masks of grade B or BKF with an aerosol filter in accordance with GOST Environmental protection 7.1 Geomats, when interacting with the environment under natural operating conditions, do not emit harmful substances into the environment. 7.2 Waste generated during the installation and operation of geomats must be disposed of in accordance with SanPiN Acceptance Rules 8.1 Acceptance of geomats should be carried out in batches. A batch is considered to be the number of rolls of geomats of the same brand, manufactured according to the same technological regulations, one recipe and accompanied by one quality document. Maximum batch size is 100 rolls. The quality document indicates: - name and (or) trademark of the manufacturer, legal address; - symbol of geomat and designation of real service stations; - batch number and date of manufacture; - results of acceptance tests; - number of rolls or square meters in a batch; - storage conditions and periods; - OTK stamp. 8.2 To control the quality of geomats for compliance with the requirements of this standard, acceptance tests are carried out. From each batch of geomats, 5% of rolls are selected by random sampling, but not less than 3 rolls. From each selected roll, a sample is cut along the entire width of the web in the roll and 1 m along its length for subsequent cutting of samples during testing. 8.3 Acceptance tests are carried out according to the following indicators: - appearance of geomats, presence of defects; - quality of winding rolls; - thickness, width and length of the geomat sheet; - surface density of the geomat fabric; - breaking load (in longitudinal and transverse directions); - relative elongation at break (in longitudinal and transverse directions);

5 - marking; - package. 8.4 If the test results are unsatisfactory for at least one indicator, a double number of rolls newly selected from the same batch should be checked for this indicator. The results of repeated tests are final. If the results of repeated tests are unsatisfactory, the entire batch is rejected. A rejected batch can be subjected to 100% control in all respects for sorting. 8.5 Periodic tests are carried out on every tenth batch in the scope of acceptance tests and additionally, in terms of flexibility at low temperatures. 8.6 When changing raw materials, recipes or manufacturing technology of geomats, type tests are carried out. The type testing program includes the full scope of acceptance and periodic tests and, additionally, the following tests: - for chemical resistance; - resistance to mold fungi; - for frost resistance. 9 Test methods 9.1 Control of the appearance of the geomat and the presence of defects is carried out visually during the production and winding of the geomat into a roll by comparison with a reference sample. 9.2 The width of the geomat is measured along the edges of the web with a metal tape measure in accordance with GOST. The length of the geomat is determined using a meter counter installed on the winding device with a measurement error of no more than 1%. 9.3 The thickness of the geomat is determined according to GOST R at a pressure on the sample of 2 kPa. 9.4 Determination of surface density is carried out according to GOST R. Breaking loads and elongations at break are determined according to ISO (sample width is at least 200 mm, distance between clamps is at least 100 mm). 9.6 Loss of strength when testing for frost resistance is determined using the method described below. From the sample selected for laboratory testing, 6 samples are cut to determine the breaking load in the initial state and after frost resistance tests. Preliminary tensile load tests are carried out for the initial samples according to ISO. Three strips of geomat are cut in the longitudinal and transverse directions and laid on the bottom of the metal bath. Distilled water is poured into the bath so that the water level above the samples is not lower than 15 mm. The bath with samples is placed in a freezer in which the temperature is set to (minus 15 ± 2) C, and kept under these conditions for 8 hours. After this, the bath with samples is removed from the freezer and completely defrosted for 16 hours at room temperature (18-30) C. 25 cycles of freezing and thawing are carried out. Then the samples are removed from the bath, dried in a drying cabinet at a temperature of (60±2) C for 16 hours, and the samples are tested for breaking load according to ISO. The reduction in strength after defrosting in % is calculated by the formula: where: R is the breaking load of the sample in the original condition; R1 is the breaking load of the sample after frost resistance testing. The value of strength loss when testing for frost resistance is taken as the arithmetic mean of the test results of all samples, with an accuracy of 1%. 9.7 Resistance to chemical media is determined according to GOST method 2 with exposure of samples for 7 days in a solution of sulfuric acid with pH 3 and in a solution of sodium hydroxide with pH Resistance to mold fungi is determined according to GOST Flexibility at negative temperatures is determined according to GOST 2678 (p 3.9 at R=10 and temperature minus 5 C) Requirements for equipment and measuring instruments: tensile testing machine with vice clamps for samples with a width of at least 200 mm, with a constant rate of load increase, with a load measurement error of no more than ±1%; drying cabinet with heating temperature up to 350 C; electronic scales with weighing accuracy ±0.3 mg according to GOST 29329; metal measuring tape according to GOST 7502 with measurement error ±1 mm.

6 10 Transportation and storage 10.1 Geomats are transported by all types of covered transport in compliance with the transportation rules in force for this type of transport. Transportation should be carried out at positive ambient temperatures. It is allowed to transport rolls of geomats in rigid containers (containers, wooden boxes) at an ambient temperature of not lower than minus 5 C. Geomat rolls are stored under canopies or in warehouses in horizontal or vertical positions at a temperature not lower than minus 5 C. It is not allowed to store rolls of geomats in horizontal position, when storing more than 7 rolls in height, and in a vertical position - more than 2 rolls in height, placing other loads and materials on top. Transportation and storage of geomats in close proximity to flammable substances, heating devices and other fire hazardous sources is not allowed in accordance with GOST Instructions for use 11.1 Geomats are used in macroclimatic regions of temperate and cold climates (UCL), placement category - 5 (in soil) according to GOST at operating temperatures not lower than minus 10 C Geomats are not intended for use in technological operations where interaction of geomats with materials heated above 120 C. Installation and operation of geomats is carried out in accordance with the requirements of the design documentation, taking into account the requirements. Installation of geomats at ambient temperatures below 0 C is not allowed. 12 Manufacturer's guarantees 12.1 The manufacturer guarantees the compliance of the produced geomats with this STO. The guaranteed shelf life of geomats is 2 years. from the date of manufacture, subject to the requirements of transportation and storage. After the expiration of the storage period, geomats can be used for their intended purpose after testing for compliance with the requirements of this standard. Appendix A (mandatory) Table A.1 - Main dimensions and physical and mechanical properties of geomats Geomat grade Surface density, g/m2, not less Geomat thickness (at a pressure of 2 kpa), mm Tensile Tensile Elongation load geomat load in geomat at rupture in the longitudinal longitudinal transverse direction, direction, and transverse kn/m, not less than kn/m, not less than direction, e e %, not less Width of the geomat sheet, cm Length of the geomat sheet, m Allowable loss of tensile strength after 25 freeze-thaw cycles , %, no more than MT (300) ± 2 1.2 0, ±5 50 ± 0.5 10 MT (300) ± 2 1.2 0, ± 5 50 ± 0.5 10 Bibliography ODM. “Recommendations for the use of geosynthetic materials in the construction and repair of highways.” ROSAVTODOR. Moscow SP Code of rules for design and construction. Design of the subgrade of 1520 mm gauge railways. Gosstroy of Russia. Moscow 1998 Key words: geomats, three-dimensional mats.

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