WO2012078071A1 - Балластный материал для подводных магистральных трубопроводов - Google Patents
Балластный материал для подводных магистральных трубопроводов Download PDFInfo
- Publication number
- WO2012078071A1 WO2012078071A1 PCT/RU2011/000180 RU2011000180W WO2012078071A1 WO 2012078071 A1 WO2012078071 A1 WO 2012078071A1 RU 2011000180 W RU2011000180 W RU 2011000180W WO 2012078071 A1 WO2012078071 A1 WO 2012078071A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- density
- plasticizer
- ballast material
- water
- cement
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/12—Laying or reclaiming pipes on or under water
- F16L1/20—Accessories therefor, e.g. floats, weights
- F16L1/24—Floats; Weights
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/36—Inorganic materials not provided for in groups C04B14/022 and C04B14/04 - C04B14/34
- C04B14/368—Baryte
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
- F16L58/04—Coatings characterised by the materials used
- F16L58/06—Coatings characterised by the materials used by cement, concrete, or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/0076—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials characterised by the grain distribution
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/0031—Heavy materials, e.g. concrete used as ballast material
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/2015—Sulfate resistance
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/56—Compositions suited for fabrication of pipes, e.g. by centrifugal casting, or for coating concrete pipes
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/74—Underwater applications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/16—Sulfur-containing compounds
- C04B24/20—Sulfonated aromatic compounds
- C04B24/22—Condensation or polymerisation products thereof
- C04B24/223—Sulfonated melamine-formaldehyde condensation products
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B24/2641—Polyacrylates; Polymethacrylates
Definitions
- the invention relates to pipeline technology, namely, to ballast materials deposited on the outer surface of pipes of underwater trunk pipelines for their weighting.
- a known control system for buoyancy of a pipe including ballast material with a density equal to or greater than 2000 kg / m, containing the following components: binder component, an additive regulating the solidification time, aggregates - water-sand mixture and / or water-barite mixture (US patent 6663453, F16L 1/16, 01/03/2003). The description of this patent does not disclose the content of the components in the ballast material and the particle size distribution of the fillers.
- a disadvantage of the known system is that for modern pipelines, the acceptable density of the ballast material is significantly higher than 2000 kg / m 3 .
- Particularly heavy concretes are known, including barite concrete, the density of which exceeds 2500 kg / m 3 (http://betony.ru), but the composition of especially heavy concrete and the features of its use as ballast material for pipes in the indicated source are not given.
- the filler has a predetermined particle size distribution, in which 8 wt.% Barite is in the form of a very fine fraction with a particle size of from 0.0 ⁇ ⁇ to 1000 ⁇ , 4 wt.% in the form of a fine fraction with a grain size of 1 to 3 mm., 10 wt.% in the form of a large fraction with a grain size of 3 up to 7 mm .; fine quartz sand with a grain size of 0.1 mm to 3 mm; large gravel fractions from 3 mm to 75 mm.
- the ratio of water to cement by weight is set in the range from 0.30 to 0.35.
- This composition has two main drawbacks: the first is the inability to obtain ballast material with a guaranteed density in excess of 2800 kg / m 3 due to the absence of restrictions on the coarse and fine aggregate used for the materials and their density; the second is a small mass ratio of water to cement in the solution (from 0.30 to 0.35), which does not allow the use of a slow-moving solution with large fractions to fill the annular space between the conductive pipe and the shell by injection through openings in the covers.
- ballast material for underwater trunk pipelines which is the closest analogue to the claimed invention and containing cement, aggregate, plasticizer and water (RU 2257503, F16L 1/24, 07/27/2005).
- This material is used to create a layer of ballast material on a conductive pipe by filling the annular space between the conductive pipe and the shell of the main pipelines and is a cement-sand mortar with sufficient mobility to fill the annular space between the conductive pipe and the shell.
- the main disadvantage of the known material is its low density (up to 2400 kg / m 3 ), which necessitates an increase in the size of the annular layer of ballast material to impart negative buoyancy to the pipeline. Disclosure of invention
- the technical problem solved by this invention is the creation of a ballast material with a density exceeding 2800 kg / m 3 , which, after hardening and holding for 28 days, has a compressive strength of up to 50 MPa, which can significantly reduce the outer diameter of the pipes with ballast coating.
- ballast material for the underwater trunk pipelines contains cement, aggregate, plasticizer and water.
- Sulfate-resistant Portland cement is used as cement.
- a plasticizer based on polycarboxylate ether was used as a plasticizer.
- Barite industrial product, barite ore and ferromanganese concentrate were used as filler in the material.
- the inventive material has the following ratio of components in wt.%: Portland cement from 8.2 to 10.5, water from 5.2 to 6.7, plasticizer from 0.1 to 0.15, barite intermediate from 15 to 20 with a density of 3.78 to 3.82 kg / cm 3 , barite ore from 15 to 20 with a density of 3.9 to 4.1 kg / cm 3 , ferromanganese concentrate from 50 to 60 with a density of 4.2 to 4.5 kg / cm 3 .
- the ratio of water to Portland cement ranges from 0.35 to 0.5.
- the particle size distribution of the components in the claimed aggregate material is: up to 0.16 mm - up to 5%, from 0.16 to 1, 0 mm - up to 25%, from 1.0 to 2.5 mm - up to 35%, from 2 , 5 to 5.0 mm - the rest.
- the ratio of the components of the claimed material was obtained in the course of numerous field experiments. Some results are shown in table 1. Adding barite industrial product to barite ore can significantly reduce the cost of ballast material. The ratio of water to cement, selected in the range from 0.35 to 0.5 is necessary to achieve the required mobility of the ballast material.
- the inventive ballast material allows with high accuracy to obtain the required density of particularly heavy ballast materials in the range from 3350 to 3450 kg / m 3 .
- the technical result is achieved in that the high-density ballast material for underwater trunk pipelines contains cement, aggregate, plasticizer and water.
- sulfate-resistant Portland cement was used as cement.
- Barite ore and ferromanganese concentrate were used as filler in the material.
- the inventive material has the following ratio of components in wt.% Portland cement from 9.2 to 10.5, water from 4.0 to 5.5, plasticizer from 0.05 to 0.18, barite ore from 3 to 17 with a density of 3 , 9 to 4.1 kg / cm 3 , ferromanganese concentrate from 69 to 82 with a density of 4.2 to 4.5 kg / cm.
- the ratio of water to Portland cement ranges from 0.35 to 0.5.
- the particle size distribution of the aggregate components is
- plasticizer in the claimed material used a complex additive consisting of all types of plasticizers in the following ratios,% volume: a plasticizer based on polycarboxylates and polyacrylates from 72 to 82, a plasticizer based on sulfonated naphthalene-formaldehyde polycondensates from 4 to 10,
- plasticizer based on sulfonated melamine-formaldehyde polycondensates from 6 to 10,
- plasticizer based on purified lignosulfonates from 3 to 8.
- the particle size distribution is shown in table 4.
- the choice of ratios is due to the need to obtain ballast material with a given increased density.
- the same table shows the density and compressive strength of the proposed ballast material with high density.
- the proposed ballast material allows with high accuracy to obtain the required density of particularly heavy ballast materials in the range from 3500 to 3700 kg / m 3 .
- the ferromanganese concentrate contains a significant amount of oxide and hydroxide compounds of manganese, iron and other metals. Such compounds are a good sulfur sorbent (sorbents are made on their basis for purification of associated petroleum gas from hydrogen sulfide). Sulfur binds to complex compounds and, as a result, does not adversely affect the reinforcing cage of the ballast layer and the body of the pipe itself if the latter does not have insulation.
- high the density of the ferromanganese concentrate makes it possible to obtain particularly heavy ballast coatings, which, in turn, can reduce the cost of the main pipe due to some decrease in wall thickness.
- FIG. 1 - pipe in section with a ballast coating made of ballast material with a layer of polyurethane foam;
- FIG. 2 sectional tube with a ballast coating made of high density ballast material.
- FIG. 1 An embodiment of a pipe coated with ballast material for underwater trunk pipelines is shown in FIG.
- the presented embodiment comprises a central pipe 1 and a support-guide device consisting of centralizers 2.
- a protective layer of polyethylene can be applied to the central pipe 1 (not indicated in FIG.).
- a layer 4 of polyurethane foam is applied between the central tube 1 and the ballast material 3.
- Centralizers 2 are distributed and fixed on a layer 4 of polyurethane foam.
- the reinforcing cage 5 is mounted on the layer 4 of polyurethane foam using clamps 6 and is located inside the ballast material 3, the outer surface of which is formed by the sheath 7.
- the reinforcing cage 5 consists of longitudinal reinforcement 8, onto which the transverse reinforcement 9 is wound with an equal pitch.
- a three-layer polyethylene coating is applied to its surface, which is peeled off from the ends of the central pipe. Then, a layer 4 of polyurethane foam is applied to the central pipe 1.
- Polyurethane foam has a very low coefficient of thermal conductivity - 0.05 W / (m * K), which with a layer thickness of 80 mm, gives a heat transfer resistance of 1.6 (m * K) / W.
- Polyurethane foam is very resistant to external factors, it does not collapse under the influence of ultraviolet radiation, salts, acids up to 10% and alkalis.
- the reinforcing cage 5 is mounted on a separate stand of longitudinal reinforcement 8, onto which the transverse reinforcement 9 is helically wound with equal pitch.
- the longitudinal 8 and transverse 9 reinforcement are connected using a knitting wire and / or welding.
- the mounted reinforcing cage 5 is fixed to the polyurethane foam layer 4 using clamps 6.
- centralizers are assembled 2.
- a shell 7 is formed on top of the reinforcing cage 5.
- the shell 7 can have a different configuration, that is, depending on the device of the centralizers 2, the cross section of the shell 7 can be made in the form of a square, rectangle, circle or in the form of an ellipse.
- the shell 7 can be made of various materials (metal, metal polymer, polymer).
- the shell material 7 is selected from the conditions in which the ballast-coated pipe will be operated.
- Ballast material 3 for underwater pipelines is pumped into the space formed between the outer surface of the layer 4 of polyurethane foam and the shell 7 using a concrete pump.
- An example of a pipe coated with a high density ballast material for underwater trunk pipelines is shown in FIG.
- the presented embodiment comprises a central pipe 1 and a supporting-guide device consisting of centralizers 2.
- the grid 10 is fixed with clamps 6 and is located inside the ballast material 3, the surface of which is formed by the shell 7.
- the grid 10 is mounted on the central pipe 1 and secured using clamps 6 and centralizers 2 are assembled.
- a sheath 7 is formed around the grid 10 (metal, metal polymer, polymer).
- the shell 7 can have a different configuration, that is, depending on the device of the centralizers 2, the cross section of the shell 7 can be made in the form of a square, rectangle, circle or in the form of an ellipse.
- the shell material 7 is selected from the conditions in which the ballast-coated pipe will be operated.
- Ballast material 3 of high density is pumped into the space formed between the outer surface of the Central pipe 1 and the shell 7.
- Plasticizer plays an important function for especially heavy concrete.
- 4 main types of plasticizers are used: based on sulfonated naphthalene-formaldehyde polycondensates, based on sulfonated melamine-formaldehyde polycondensates, based on purified lignosulfonates and based on polycarboxylates and polyacrylates.
- the essence of the action of the plasticizer is reduced to the interaction functional groups of a plasticizer with calcium hydroxide, leading to the neutralization of molecules and their removal from the surface of cement grains.
- plasticizers based on polycarboxylates and polyacrylates show that the effectiveness of a plasticizer based on polycarboxylates and polyacrylates is approximately twice as high as for plasticizers based on sulfonated naphthalene-formaldehyde polycondensates and based on sulfonated melamine-formaldehyde polycondensates and almost three times on the basis of purified lignosulfates.
- plasticizer in the form of a complex additive consisting of all types of plasticizers in the following ratios (% by volume): a plasticizer based on polycarboxylates and polyacrylates from 72 to 82%, a plasticizer based on sulfonated naphthalene-formaldehyde polycondensates from 4 to 10%, a plasticizer based on sulfonated melamine-formaldehyde polycondensates from 6 to 10% and a plasticizer based on purified lignosulfonates from 3 to 8%.
- ballast material 3 has sufficient mobility to fill the entire space regardless of the cross-sectional shape of the shell.
- the setting of the ballast material 3 occurs in 3-3.5 hours. Then the structure is left for 10-12 hours at a temperature of +15 ... + 20 ° C to set the strength of the ballast material 3 to 5 MPa. Set the strength of the ballast material 3 to 20 MPa is carried out after laying the pipe with a ballast coating on a sand cushion.
- ballast material for underwater trunk pipelines and high-density ballast material for submarine trunk pipelines allows the production of ballast-coated pipes to be more durable, heat-resistant and with a long service life.
- Pipes with the claimed coating have increased bending strength and can be used in the construction of underwater pipelines for laying them in various climatic conditions.
- composition N2 1 Composition N2 2
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Civil Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EA201201469A EA028923B1 (ru) | 2010-12-08 | 2011-03-24 | Балластный материал для подводных магистральных трубопроводов и балластный материал повышенной плотности для подводных магистральных трубопроводов |
CA2847171A CA2847171C (en) | 2010-12-08 | 2011-03-24 | Buoyancy control material for subsea main pipelines and high-density buoyancy control material for subsea main pipelines |
US13/817,139 US8895642B2 (en) | 2010-12-08 | 2011-03-24 | Buoyancy control material for subsea main pipelines and high-density buoyancy control material for subsea main pipelines |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2010150259/06A RU2437020C1 (ru) | 2010-12-08 | 2010-12-08 | Балластный материал для подводных магистральных трубопроводов |
RU2010150259 | 2010-12-08 | ||
RU2011101633/06A RU2455553C1 (ru) | 2011-01-18 | 2011-01-18 | Балластный материал повышенной плотности для подводных магистральных трубопроводов |
RU2011101633 | 2011-01-18 |
Publications (1)
Publication Number | Publication Date |
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WO2012078071A1 true WO2012078071A1 (ru) | 2012-06-14 |
Family
ID=46207378
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/RU2011/000180 WO2012078071A1 (ru) | 2010-12-08 | 2011-03-24 | Балластный материал для подводных магистральных трубопроводов |
Country Status (4)
Country | Link |
---|---|
US (1) | US8895642B2 (ru) |
CA (1) | CA2847171C (ru) |
EA (1) | EA028923B1 (ru) |
WO (1) | WO2012078071A1 (ru) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104214469A (zh) * | 2014-09-22 | 2014-12-17 | 新兴铸管股份有限公司 | 球墨铸铁管外表面防腐蚀处理工艺 |
AT17850U1 (de) * | 2022-02-14 | 2023-05-15 | Hallingplast As | Rohr und Verfahren zum Einstellen des Gewichts eines Rohres |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9667935B2 (en) * | 2013-05-07 | 2017-05-30 | Endochoice, Inc. | White balance enclosure for use with a multi-viewing elements endoscope |
KR20160032587A (ko) * | 2014-09-16 | 2016-03-24 | 삼성전자주식회사 | 영상 촬영 장치 및 이의 촬영 방법 |
US10689046B1 (en) * | 2019-04-19 | 2020-06-23 | Lyft, Inc. | Apparatus, systems, and methods for single-sided locks |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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SU1316995A1 (ru) * | 1984-11-27 | 1987-06-15 | Киевский технологический институт легкой промышленности | Теплоизол ционна масса дл покрыти трубопроводов |
SU1717580A1 (ru) * | 1990-05-14 | 1992-03-07 | Уфимский Нефтяной Институт | Композици дл защитного покрыти стальных поверхностей |
WO1998001402A1 (fr) * | 1996-07-08 | 1998-01-15 | 3055515 Canada Inc. | Preparation de beton projete |
WO2000020183A1 (fr) * | 1998-10-05 | 2000-04-13 | Lafarge Aluminates | Tube interieurement recouvert d'une composition cimenteuse et son procede de fabrication |
RU2257503C1 (ru) * | 2003-10-22 | 2005-07-27 | Свечкопалов Анатолий Петрович | Способ нанесения балластного покрытия на поверхность трубы для подводного трубопровода |
-
2011
- 2011-03-24 EA EA201201469A patent/EA028923B1/ru not_active IP Right Cessation
- 2011-03-24 WO PCT/RU2011/000180 patent/WO2012078071A1/ru active Application Filing
- 2011-03-24 CA CA2847171A patent/CA2847171C/en not_active Expired - Fee Related
- 2011-03-24 US US13/817,139 patent/US8895642B2/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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SU1316995A1 (ru) * | 1984-11-27 | 1987-06-15 | Киевский технологический институт легкой промышленности | Теплоизол ционна масса дл покрыти трубопроводов |
SU1717580A1 (ru) * | 1990-05-14 | 1992-03-07 | Уфимский Нефтяной Институт | Композици дл защитного покрыти стальных поверхностей |
WO1998001402A1 (fr) * | 1996-07-08 | 1998-01-15 | 3055515 Canada Inc. | Preparation de beton projete |
WO2000020183A1 (fr) * | 1998-10-05 | 2000-04-13 | Lafarge Aluminates | Tube interieurement recouvert d'une composition cimenteuse et son procede de fabrication |
RU2257503C1 (ru) * | 2003-10-22 | 2005-07-27 | Свечкопалов Анатолий Петрович | Способ нанесения балластного покрытия на поверхность трубы для подводного трубопровода |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104214469A (zh) * | 2014-09-22 | 2014-12-17 | 新兴铸管股份有限公司 | 球墨铸铁管外表面防腐蚀处理工艺 |
AT17850U1 (de) * | 2022-02-14 | 2023-05-15 | Hallingplast As | Rohr und Verfahren zum Einstellen des Gewichts eines Rohres |
Also Published As
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EA201201469A1 (ru) | 2013-06-28 |
CA2847171C (en) | 2018-08-21 |
CA2847171A1 (en) | 2012-06-14 |
US20140018476A1 (en) | 2014-01-16 |
EA028923B1 (ru) | 2018-01-31 |
US8895642B2 (en) | 2014-11-25 |
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