WO2022186721A1 - Геокомпозит геотекстильный для армирования дорожных сооружений - Google Patents
Геокомпозит геотекстильный для армирования дорожных сооружений Download PDFInfo
- Publication number
- WO2022186721A1 WO2022186721A1 PCT/RU2021/000394 RU2021000394W WO2022186721A1 WO 2022186721 A1 WO2022186721 A1 WO 2022186721A1 RU 2021000394 W RU2021000394 W RU 2021000394W WO 2022186721 A1 WO2022186721 A1 WO 2022186721A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- geocomposite
- woven
- geotextile
- reinforcing
- layer
- Prior art date
Links
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 23
- 239000004746 geotextile Substances 0.000 title abstract description 35
- -1 polypropylene Polymers 0.000 claims abstract description 13
- 239000004743 Polypropylene Substances 0.000 claims abstract description 8
- 229920001155 polypropylene Polymers 0.000 claims abstract description 8
- 229920000642 polymer Polymers 0.000 claims abstract description 7
- 239000000853 adhesive Substances 0.000 claims abstract description 4
- 230000001070 adhesive effect Effects 0.000 claims abstract description 4
- 239000004744 fabric Substances 0.000 claims description 11
- 238000001914 filtration Methods 0.000 claims description 9
- 239000012963 UV stabilizer Substances 0.000 claims description 7
- 239000004698 Polyethylene Substances 0.000 claims description 5
- 229920000573 polyethylene Polymers 0.000 claims description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims description 2
- 239000003292 glue Substances 0.000 claims description 2
- 239000010410 layer Substances 0.000 abstract description 43
- 238000004078 waterproofing Methods 0.000 abstract description 10
- 239000011229 interlayer Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 29
- 239000002689 soil Substances 0.000 description 19
- 238000010276 construction Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 6
- 239000002131 composite material Substances 0.000 description 5
- 230000006378 damage Effects 0.000 description 5
- 230000002787 reinforcement Effects 0.000 description 5
- 239000004927 clay Substances 0.000 description 4
- 239000002861 polymer material Substances 0.000 description 4
- 208000018747 cerebellar ataxia with neuropathy and bilateral vestibular areflexia syndrome Diseases 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 238000003475 lamination Methods 0.000 description 3
- 239000003415 peat Substances 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 239000004566 building material Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010835 comparative analysis Methods 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000004611 light stabiliser Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 239000004747 spunlaid nonwoven Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J123/00—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
- C09J123/02—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
- C09J123/04—Homopolymers or copolymers of ethene
- C09J123/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J123/00—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
- C09J123/02—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
- C09J123/10—Homopolymers or copolymers of propene
- C09J123/12—Polypropene
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
- D03D15/283—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads synthetic polymer-based, e.g. polyamide or polyester fibres
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H13/00—Other non-woven fabrics
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/04—Foundations produced by soil stabilisation
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
Definitions
- the invention relates to the field of construction, namely to the construction of subgrade and pavement bases and can be used as a reinforcing multifunctional layer for: reinforcing pavement bases and embankments on soft soils in difficult soil and geological conditions, including peat bases, subsidence and plastic clay soils; planar drainage devices at the base of road cuts and low embankments with unsecured drainage; devices for waterproofing and capillary interruption of the subgrade in areas with the third type of terrain in terms of moisture and dusty, clay base soils without additional drainage layers; ensuring the stability of slopes of increased steepness or when using local soils with low strength characteristics.
- geotextiles in construction is widely known for its use, in particular, as drainage systems, reinforcing layers, geotubes.
- a reinforcing geocomposite material comprising a web of needle-punched non-woven material (geotextile) bonded to a polymeric material, while the material contains a base layer of geotextile, on which a woven polymeric material is applied by a needle-punched method, and in this form it has a water-permeable ability (see utility model patent EN 127382 U1,
- a geoplatform for reinforcing a road embankment, containing geogrid modules fastened together, the cells of which are filled with filler and on top of which an additional layer of filler is located, the geogrid modules are placed on canvases of woven geotextile, while the geotextile canvases are located in the transverse direction relative to the axis of the roadway, and the edges of the canvases wrapped on each side on the surface of an additional layer of filler (see utility model patent RU 122100 U1,
- Known high-strength composite fabric for earthworks containing the main layer of fabric in the form of woven geotextile, which is the top layer and non-woven material representing the bottom layer.
- the described nonwoven web uses a needle punching technique to combine with each other with a woven geotextile, placing a plurality of nonwoven reinforcement materials on the described base fabric layer on the top surface.
- the lower surface of the fabric is covered with a thin layer of polyethylene film (see utility model patent CN 203331508 U,
- the solution refers to a type of composite subgrade, and contains a main layer of fabric in the form of a woven geotextile, which is the top layer and a non-woven material, which is the bottom layer.
- the described nonwoven web uses a needle punching technique to combine with each other with a woven geotextile, placing a plurality of nonwoven reinforcement materials on the described base fabric layer on the top surface.
- gaps are formed to accommodate a plurality of non-woven reinforcing materials, and the lower surface is provided with a thin layer of plastic foil.
- a drainage geocomposite is known according to the utility model patent RU 98428 W, 10/20/2010, containing a geogrid with a two-level structure for placing its elements forming cells, and two layers of geotextile, used as an alternative to traditional drainage systems made of crushed stone.
- This geocomposite due to its low strength, it does not provide a reinforcing function under conditions of high traffic loads during the construction of embankments on a weak foundation. As a result, construction in conditions of weak and waterlogged soils requires more material-intensive and labor-intensive ways to strengthen the foundation and ensure the operational reliability of road structures.
- Known reinforcing geotextile material including a cloth of needle-punched non-woven material (geotextile) bonded to a polymer material, characterized in that it contains the main layer of geotextile, on which a woven polymer material is applied by a needle-punched method, and in such form is water permeable.
- the disadvantage of this technical solution is that the proposed material does not have reinforcing properties in soil structures under high loads for the following reasons: the connection of a woven polymer material is made by a needle-punched method, in which the threads of the woven structure are pierced with needles and its strength characteristics are significantly lost by 40-70%.
- Polyester woven polymer material is short-lived and decomposes under conditions of use in swamps and peat soils, which are characterized by an acid reaction of the environment (pH value 3, 0-5.0).
- a polymer waterproof film is added from the side of the woven layer with fixation by thermal bonding. In this case, the composite is subjected to heating, which can reduce its strength characteristics.
- film materials for waterproofing requires the use of special protective technological layers to prevent damage by coarse inclusions along the contact boundary. For these reasons, the material cannot be used as a reinforcing layer for reinforcing road embankments built on weak, unstable, acidic bases subject to high loads, without a protective layer of fine sand.
- This source can be taken as the closest analogue.
- the technical problem to be solved by this solution is to increase the service life and operational reliability of road structures built on weak, waterlogged bases, as well as to reduce construction time and cost by reducing the consumption of building materials and the installation of pavement on the subgrade until the completion of its stabilization.
- the multilayer geocomposite is made of three interconnected layers: the upper one, which is a woven geotextile with a filtration coefficient of 20 m/day, made of tape and multifilament polypropylene threads intertwined with each other, and impregnated with hydrophilic a solution based on organosilicone, the bottom layer, which was used as a non-woven needle-punched fabric with a density of 300-500 g/m 2 , and the middle layer, which is a glue adhesive based on a polymer melt, which is dotted on the surfaces of the upper and lower layers facing each other for the possibility of their gluing with the formation of a geocomposite, while the ratio of the thickness of the upper layer to the lower one lies in the range of 1:3-1:4.
- the technical result is the creation of a geotextile geotextile for reinforcing embankments, which, due to the woven structure of the geofabric, provides high strength for strengthening road bases and embankments, as well as effective redistribution of the load on a weak base when simultaneous performance of draining, waterproofing and capillary interrupting functions.
- Geotextile geotextile consists of a high-strength woven geotextile impregnated with a hydrophilic solution of permanent action based on organosilicone to increase its culvert capacity and filtration, and non-woven geotextiles, interconnected, for example, by lamination or adhesive composition.
- the geotextile geocomposite performs the combined function of reinforcement, waterproofing and drainage in the road structure under traffic load.
- an increase in the elasticity modulus of soil layers and a uniform distribution of static and dynamic transport loads on a weak base are achieved, which leads to the possibility of reducing the requirements for the calculated degree of its consolidation.
- the reinforcing effect depending on the soil conditions, can be increased by 15-50% when installing a closed-type reinforced soil clip or a geoplatform at the base of the road embankment to limit lateral movement of the soil.
- the filtration coefficient must be at least 20 m/day in accordance with the requirements of road standards for geosynthetic materials that perform a draining (drainage) function. At lower values of the coefficient, the geomaterial cannot be used as a drainage layer.
- connection of geotextile layers is carried out by lamination or adhesive bonding, which ensures the preservation of the high strength of the woven structure of the geotextile and provides high resistance to damage by coarse inclusions of structural layers.
- Multifilament threads provide filtering ability of the geocomposite, ribbon threads are necessary to ensure the strength of the geocomposite.
- Impregnation based on organosilicone is designed to increase the water permeability of woven geotextiles.
- the choice of a needle-punched fabric with a density of 300-500g/m 2 is due to the provision of drainage through the thickness - across the material. Tests were carried out, material with different density options.
- materials with a density of 150 g/m 2 , 250 g/m 2 , 300 g/m 2 , 450 g/m 2 , 500 g/m 2 were taken. Tests have shown that at a density of less than 300 g/m 2 the required filtration is not provided (the material, in fact, does not fulfill its filtering function). Material in the range of 300-500 g/m 2 met the normative requirements of filtration, and more than 500 g/m 2 - gives excess thickness and material consumption.
- the choice of the ratio of the thickness of the upper layer to the lower lies in the range of 1:2-1:4 is associated with the use of needle-punched geotextile with a density of 300-500 g/m 2 , the thickness of which exceeds the thickness of the woven material by 2-4 times.
- An indication of the ratio of thicknesses emphasizes the structure of the material, since at the same density, needle-punched geotextiles can have different thicknesses. Reducing the thickness at equal density leads to a decrease in the filtration coefficient - the fibers of the material are placed too close to each other; with an increase in thickness, the culvert capacity increases, but at the same time the resistance to cyclic loads decreases - such materials, as a rule, are not used in road construction.
- Geotextile geocomposite when connected by lamination has a ratio of components of the polymer melt: wt.%: high-flow polypropylene 60-70 low-pressure polyethylene 15-20
- the woven geotextile is impregnated with a permanent hydrophilic solution based on organosilicone, for example, 1BQ d600.
- organosilicone for example, 1BQ d600.
- UV stabilizer for example, Tosaf 65 UV6639PP or Lightform 120601SB are used.
- UV stabilizers for copolymers are used to protect the surface from damaging light exposure. Being under the sun's 25 rays, polyethylene, polypropylene, PVC fade, turn yellow, paint. Cracks appear on the product, in which moisture and dust can penetrate. They are added to the original mixture or applied to the surface of the product. They include: sterically hindered organic compounds that have a complex branched structure, slow down the movement of radicals, as well as antioxidants that prevent the destruction of the material under the action of released oxygen.
- the use of light stabilizers allows you to absorb light, dissipating heat, slow down the decomposition process and react with already formed products. The service life of a high-quality UV stabilizer is up to 10 seasons.
- the proposed geotextile composite has high-strength reinforcing properties and versatility, since, depending on the conditions of use, it can be produced with drainage and waterproofing properties.
- the composite material has a high rate of resistance to damage by large-fraction inclusions under the action of the loads of construction equipment and the weight of the subgrade. Table 1.
- the claimed multilayer geocomposite with the above characteristics has, in comparison with the existing state of the art, high reinforcing strength when strengthening road bases and embankments, as well as effective redistribution of the load on a weak base while simultaneously performing draining, waterproofing and capillary-breaking function.
- the invention is applicable in the field of construction and can be used as a reinforcing multifunctional layer for: reinforcing bases of pavements and embankments on soft soils in difficult soil and geological conditions, including peat bases, subsidence and plastic clay soils; planar drainage devices at the base of road cuts and low embankments with unsecured drainage; devices for waterproofing and capillary interruption of the subgrade in areas with the third type of terrain in terms of moisture and dusty, clay base soils without additional drainage layers; ensuring the stability of slopes of increased steepness or when using local soils with low strength characteristics.
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Organic Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Civil Engineering (AREA)
- Textile Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Architecture (AREA)
- General Engineering & Computer Science (AREA)
- Paleontology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Road Paving Structures (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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RU2021105176 | 2021-03-01 | ||
RU2021105176 | 2021-03-01 |
Publications (1)
Publication Number | Publication Date |
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WO2022186721A1 true WO2022186721A1 (ru) | 2022-09-09 |
Family
ID=83154323
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/RU2021/000394 WO2022186721A1 (ru) | 2021-03-01 | 2021-09-14 | Геокомпозит геотекстильный для армирования дорожных сооружений |
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WO (1) | WO2022186721A1 (ru) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU59074U1 (ru) * | 2006-07-07 | 2006-12-10 | Общество с ограниченной ответственностью производственно-торговая фирма "Втор-Ком" | Полотно гидроизоляционное |
RU127382U1 (ru) * | 2012-08-13 | 2013-04-27 | Общество с ограниченной ответственностью "НПО "Промкомпозит" | Армирующий геокомпозитный материал |
CN203449688U (zh) * | 2013-07-27 | 2014-02-26 | 江阴市璜塘水利工程有限公司 | 复合土工布 |
RU172516U1 (ru) * | 2016-02-18 | 2017-07-11 | Акционерное общество "Втор-Ком" | Полотно гидроизоляционное трехслойное |
RU2743826C2 (ru) * | 2015-06-16 | 2021-02-26 | Атарфиль, С.Л. | Самонесущая синтетическая полимерная водонепроницаемая мембрана со свойствами самовосстановления |
-
2021
- 2021-09-14 WO PCT/RU2021/000394 patent/WO2022186721A1/ru active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU59074U1 (ru) * | 2006-07-07 | 2006-12-10 | Общество с ограниченной ответственностью производственно-торговая фирма "Втор-Ком" | Полотно гидроизоляционное |
RU127382U1 (ru) * | 2012-08-13 | 2013-04-27 | Общество с ограниченной ответственностью "НПО "Промкомпозит" | Армирующий геокомпозитный материал |
CN203449688U (zh) * | 2013-07-27 | 2014-02-26 | 江阴市璜塘水利工程有限公司 | 复合土工布 |
RU2743826C2 (ru) * | 2015-06-16 | 2021-02-26 | Атарфиль, С.Л. | Самонесущая синтетическая полимерная водонепроницаемая мембрана со свойствами самовосстановления |
RU172516U1 (ru) * | 2016-02-18 | 2017-07-11 | Акционерное общество "Втор-Ком" | Полотно гидроизоляционное трехслойное |
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