CA2917067C - Method for manufacturing a protective concrete weight coating for pipelines - Google Patents
Method for manufacturing a protective concrete weight coating for pipelines Download PDFInfo
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- CA2917067C CA2917067C CA2917067A CA2917067A CA2917067C CA 2917067 C CA2917067 C CA 2917067C CA 2917067 A CA2917067 A CA 2917067A CA 2917067 A CA2917067 A CA 2917067A CA 2917067 C CA2917067 C CA 2917067C
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- 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
-
- 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
- C04B14/04—Silica-rich materials; Silicates
- C04B14/048—Granite
-
- 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
- C04B14/04—Silica-rich materials; Silicates
- C04B14/14—Minerals of vulcanic origin
-
- 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
- C04B14/30—Oxides other than silica
-
- 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
- C04B14/30—Oxides other than silica
- C04B14/308—Iron oxide
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- 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
-
- 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
- F16L9/153—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups comprising only layers of metal and concrete with or without reinforcement
-
- 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
- C04B2111/00034—Physico-chemical characteristics of the mixtures
- C04B2111/00146—Sprayable or pumpable mixtures
-
- 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
- C04B2111/00663—Uses not provided for elsewhere in C04B2111/00 as filling material for cavities or the like
- C04B2111/00706—Uses not provided for elsewhere in C04B2111/00 as filling material for cavities or the like around pipelines or the like
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
A Method for manufacturing a protective concrete weight coating for pipelines. The invention relates to materials for application to the outer surfaces of pipes as a protective negative buoyancy coating. It allows achieving accurately a desired density of the concrete protective weight coating of the pipeline in the range of 2600 to 3400 kg / m3 by claimed method of manufacturing a protective concrete weight coating for pipelines which includes mixing cement, aggregate, a plasticizing additive and water, pumping the resultant mixture into an annular space formed by the outer surface of a pipeline and a permanent form mounted with clearance thereon, and setting the resultant coating.
Description
A.dorney docket No, A.A0961 METHOD FOR MANUFACTURING A PROTECTIVE CONCRETE WEIGHT
COATING FOR PIPELINES
FIELD OF Tim INVENTION
100011 The invention relates to materials for application to the outer suitices of pipes as a protective negative buoyancy coating.
RACKGROUND OF THE INVENTION
100021 There is a known method of preparing a ballast material for underwater 1.0 pipelines, comprising mixing cement, aggregates, water, and plasticizer, wherein coarse aggregate from the group of barite, or iron-containing ore, or a mixture thereof is used as a aggregate. The mixing is carried out in two stages, as a first step the mentioned, coarse aggregate, cement, water and plasticizer are fed to a mixer in the amount of 10 wt. % to 20 wt.
% of its total amount, the mixing is peribtmcd of 10 to 15 seconds and as the second step, rest of the mentioned coarse aggregate is supplied in equal portions at intervals of 10 to 15 seconds while stirring and mixing of the cornponents is carried out until a homogeneous MiNtLITC (RU 2.412393, 20,02.2011).
100031 There is a known ballast material containing cement, barite ore, water and a plasticizer. The following fractional composition of barite ore wt. % is used in the manufacture of ballast material: coarse fraction (from 5 mm to 25 mm) - 8 wt.%
to 16 fine fraction (from 0, 6 Min 1:0 5 rum) - 70 wt.% to 84 WI:. %, a very small fraction (from 0,01 p.M to 160 itM) - 8 wt% to 14 wt% (R11 2399828, 20.09.2010).
100041 There is also known ballast material, comprising cement, aggregate, plastici.zer and water, The material has sulphate resistant Portland cement, polycarboxylate P(.7,E plasticizer, and barium product, barite and iron manganese ore aggregate concentrate.
The material has the following component ratio, wt.%: Portland cement - from 8,2 wt% to 10.5 wt.%, water - from 5,2 wt.% to 6,7 wt.%, plasticizer - from 0,1 wt.% to 0.15 wt.%, barite product - from 18 wt% to 28 wt.% with density of 3.78 kg / cm3 to 3,82 kg / cm and a.
humidity' of 0.9% to 2,1%, barite ore - from 18 wt,% to 28 wt,% with density of 3.9 kg / enf3 to 4.1 kg / cm3 and a moisture content of 2%, iron manganese concentrate -from 25 wt.% to 45 wt% with density of 4,2 kg / eni3 to 4.5 kg ir cm.3 and moisture content of 4%, 100051 The ratio of water to Portland cement is from 0,35 to 0.5. Aggregate components have the following particle size distribution: up to 0.16 cm - up to 5% from 0,16 Attorney docket No. AA0961 cm to 1,0 çtn - up to 25% from 1.0 cm to 2.5 cm - up to 35% from 2.5 cm to 5.0 cm - the rest (R1.5 2437020, 20,12.2011).
Disadvantages of the above-mentioned technical solutions, are insufficient viscosity of the solution and time of preserving the mobility of the concrete mixture, making it difficult to fill the annulus of "pipe in pipe" structure and making it necessary for the control. of the operational raw materials humidity in order to avoid rupture of the outer shell and the bundle of concrete solution within the fulfilled structure.
100071 The closest to the proposed technical solution is a method for manufacturing of the ballast coating on the pipe, comprising: mixing the initial components, namely, sulphate resistant. Portland cement, barite ore and plasticizer based on polyearboxylate ether and water. The components fOr mixture are taken in the f011owing amounts (wt.%): sulphate resistant Portland cement of 12 wt,% to 17 wt.%, water of 4 wt.% to 10 wt.%, plasticizer based on polycarboxylate ether of 0.1 wt.% to 0.25 wt,%, barite ore - the rest, And different fractions of barite ore at the following content (wt.%) are served for the mixture: large 3 mm to 25 mm - 18 wt.%, fine 0,16 mm to 3 mm of 70 wt.% to 85 wt.%, very small 0.01 mm to 0.16 mm - of 7 wt.% to 16 wt,%.
100081 Water for concrete mixture is subject to pre-treatment by passing it:
through a magnetic field,, wherein the intensity is maintained at the value of 1.20 000 A / in to 140 000 A / in, at a. speed of 0,5 m ( sec to 3.0 m / see, the time of water treatment: is not less than 2 hours (Ali 2453515, 20.06.2012).
However, the known method is rather difficult to apply to mixtures that are prone to self..pa.cking, as the water treated in a magnetic field has a relatively small period of effective action, which imposes substantial limitations on the time of the solution feeding, and the behaviour cif such concrete mixes under external forces (lbr example feeding of the . 25 mix with a concrete pump) could change rapidly.
18UM.M.ARY OF THE INVENTION
1000101 'The invention relates to materials for application to the outer surfaces of pipes as a protective negative buoyancy coating. it allows achieving accurately a desired density of the concrete protective weight coating of the pipeline in the range of 2600 to 3400 kg / m3 by claimed method of manuthcturing a protective concrete weight coating for pipelines which includes mixing cement, aggregate, a plasticizing additive and water, pumping the resultant mixture into an annular space formed by the, outer surtac,e of a pipeline and a permanent limn mounted with clearance thereon, and setting the resultant coating. In
COATING FOR PIPELINES
FIELD OF Tim INVENTION
100011 The invention relates to materials for application to the outer suitices of pipes as a protective negative buoyancy coating.
RACKGROUND OF THE INVENTION
100021 There is a known method of preparing a ballast material for underwater 1.0 pipelines, comprising mixing cement, aggregates, water, and plasticizer, wherein coarse aggregate from the group of barite, or iron-containing ore, or a mixture thereof is used as a aggregate. The mixing is carried out in two stages, as a first step the mentioned, coarse aggregate, cement, water and plasticizer are fed to a mixer in the amount of 10 wt. % to 20 wt.
% of its total amount, the mixing is peribtmcd of 10 to 15 seconds and as the second step, rest of the mentioned coarse aggregate is supplied in equal portions at intervals of 10 to 15 seconds while stirring and mixing of the cornponents is carried out until a homogeneous MiNtLITC (RU 2.412393, 20,02.2011).
100031 There is a known ballast material containing cement, barite ore, water and a plasticizer. The following fractional composition of barite ore wt. % is used in the manufacture of ballast material: coarse fraction (from 5 mm to 25 mm) - 8 wt.%
to 16 fine fraction (from 0, 6 Min 1:0 5 rum) - 70 wt.% to 84 WI:. %, a very small fraction (from 0,01 p.M to 160 itM) - 8 wt% to 14 wt% (R11 2399828, 20.09.2010).
100041 There is also known ballast material, comprising cement, aggregate, plastici.zer and water, The material has sulphate resistant Portland cement, polycarboxylate P(.7,E plasticizer, and barium product, barite and iron manganese ore aggregate concentrate.
The material has the following component ratio, wt.%: Portland cement - from 8,2 wt% to 10.5 wt.%, water - from 5,2 wt.% to 6,7 wt.%, plasticizer - from 0,1 wt.% to 0.15 wt.%, barite product - from 18 wt% to 28 wt.% with density of 3.78 kg / cm3 to 3,82 kg / cm and a.
humidity' of 0.9% to 2,1%, barite ore - from 18 wt,% to 28 wt,% with density of 3.9 kg / enf3 to 4.1 kg / cm3 and a moisture content of 2%, iron manganese concentrate -from 25 wt.% to 45 wt% with density of 4,2 kg / eni3 to 4.5 kg ir cm.3 and moisture content of 4%, 100051 The ratio of water to Portland cement is from 0,35 to 0.5. Aggregate components have the following particle size distribution: up to 0.16 cm - up to 5% from 0,16 Attorney docket No. AA0961 cm to 1,0 çtn - up to 25% from 1.0 cm to 2.5 cm - up to 35% from 2.5 cm to 5.0 cm - the rest (R1.5 2437020, 20,12.2011).
Disadvantages of the above-mentioned technical solutions, are insufficient viscosity of the solution and time of preserving the mobility of the concrete mixture, making it difficult to fill the annulus of "pipe in pipe" structure and making it necessary for the control. of the operational raw materials humidity in order to avoid rupture of the outer shell and the bundle of concrete solution within the fulfilled structure.
100071 The closest to the proposed technical solution is a method for manufacturing of the ballast coating on the pipe, comprising: mixing the initial components, namely, sulphate resistant. Portland cement, barite ore and plasticizer based on polyearboxylate ether and water. The components fOr mixture are taken in the f011owing amounts (wt.%): sulphate resistant Portland cement of 12 wt,% to 17 wt.%, water of 4 wt.% to 10 wt.%, plasticizer based on polycarboxylate ether of 0.1 wt.% to 0.25 wt,%, barite ore - the rest, And different fractions of barite ore at the following content (wt.%) are served for the mixture: large 3 mm to 25 mm - 18 wt.%, fine 0,16 mm to 3 mm of 70 wt.% to 85 wt.%, very small 0.01 mm to 0.16 mm - of 7 wt.% to 16 wt,%.
100081 Water for concrete mixture is subject to pre-treatment by passing it:
through a magnetic field,, wherein the intensity is maintained at the value of 1.20 000 A / in to 140 000 A / in, at a. speed of 0,5 m ( sec to 3.0 m / see, the time of water treatment: is not less than 2 hours (Ali 2453515, 20.06.2012).
However, the known method is rather difficult to apply to mixtures that are prone to self..pa.cking, as the water treated in a magnetic field has a relatively small period of effective action, which imposes substantial limitations on the time of the solution feeding, and the behaviour cif such concrete mixes under external forces (lbr example feeding of the . 25 mix with a concrete pump) could change rapidly.
18UM.M.ARY OF THE INVENTION
1000101 'The invention relates to materials for application to the outer surfaces of pipes as a protective negative buoyancy coating. it allows achieving accurately a desired density of the concrete protective weight coating of the pipeline in the range of 2600 to 3400 kg / m3 by claimed method of manuthcturing a protective concrete weight coating for pipelines which includes mixing cement, aggregate, a plasticizing additive and water, pumping the resultant mixture into an annular space formed by the, outer surtac,e of a pipeline and a permanent limn mounted with clearance thereon, and setting the resultant coating. In
2 Attorney docket No, AA0961 the method. Portland cement is supplied .for mixing in an amount such that the 'mixture contains from 8.8 wt,% to 20,0 wt.% Portland cement, and water is added in an amount such that the ratio of water to cement is from 0.31 to 0.63. The plasticizing additive, in the .form of a plasticizer and a defoamer, is supplied for mixing in an amount of from 1.0 kglinl to 3,0 kglar), The aggregate supplied fbr mixing is selected from barium ore or an iron-bearing ore, or gabbro-dutbase, or granite with particle size not exceeding 10 min. The resultant concrete .inixture has a flow behaviour index, measured by the slump of a cone, which is equal to from 55 cm to 75 cm, and an air content of from 1% to 4% of the volume.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[000 I 1) The technical advantage of the claim is a method for manufacturing a protective concrete weight coating of the pipeline with high set density and with a high compressive strength after curing and aging. This in turn allows improving the technical result, namely reducing or the outer diameter of the pipe with a protective ballast coating tor underwater, underground and ground use.
11100121 The claimed technical advantage is achieved by the claimed method of manufacturing a protective concrete weight coating of the pipeline, which comprises mixing cement, aggregate, plasticizing additive and. water, The resulting mixture is injected into the annular space formed by the outer surface of the pipe and mounted thereon with a gap of permanent shimming. The coat is left to age. Portland cement is supplied for mixing in an amount such that the mixture contains from 8,8 wt. % to 20.0 wt. %, water is added in an amount such that the ratio of water to cement is from 0,31 to 0.63. The plasticizing additive, in the form of a plasticizer and a defoan1Ct, is supplied for mixing in an amount of from 1.0 kg/m3 to 3.0 The aggregate supplied for mixing- should contain grain size not exceeding 1() mm, The aggregate is selected, front barium ore or an iron-bearing ore, or gabbro-diabase, or granite. The resultant concrete mixture has a flow behaviour index, measured by the slump of a cone, which is equal to from 55 cm to 75 cm. and an air content of from 1% to 4% of the volume, For the best resulting density of the protective concrete weight coating it is pretrable that the aggregate supplied for mixture has the following particle size distribution: up to Or 16 mm - up to 8%, from 0.16 mm to 1.25 mm - up to 35%, from 1,25 turn to 2,5 min - up to 37%, from. 2.5 mm to 10,0 inm - the rest.
[00013) As a plasticizer for mixture it is preferable to use ltgnosulfonates, naphthalene sulfonates and melamine sultanates separately or in a mixture in any
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[000 I 1) The technical advantage of the claim is a method for manufacturing a protective concrete weight coating of the pipeline with high set density and with a high compressive strength after curing and aging. This in turn allows improving the technical result, namely reducing or the outer diameter of the pipe with a protective ballast coating tor underwater, underground and ground use.
11100121 The claimed technical advantage is achieved by the claimed method of manufacturing a protective concrete weight coating of the pipeline, which comprises mixing cement, aggregate, plasticizing additive and. water, The resulting mixture is injected into the annular space formed by the outer surface of the pipe and mounted thereon with a gap of permanent shimming. The coat is left to age. Portland cement is supplied for mixing in an amount such that the mixture contains from 8,8 wt. % to 20.0 wt. %, water is added in an amount such that the ratio of water to cement is from 0,31 to 0.63. The plasticizing additive, in the form of a plasticizer and a defoan1Ct, is supplied for mixing in an amount of from 1.0 kg/m3 to 3.0 The aggregate supplied for mixing- should contain grain size not exceeding 1() mm, The aggregate is selected, front barium ore or an iron-bearing ore, or gabbro-diabase, or granite. The resultant concrete mixture has a flow behaviour index, measured by the slump of a cone, which is equal to from 55 cm to 75 cm. and an air content of from 1% to 4% of the volume, For the best resulting density of the protective concrete weight coating it is pretrable that the aggregate supplied for mixture has the following particle size distribution: up to Or 16 mm - up to 8%, from 0.16 mm to 1.25 mm - up to 35%, from 1,25 turn to 2,5 min - up to 37%, from. 2.5 mm to 10,0 inm - the rest.
[00013) As a plasticizer for mixture it is preferable to use ltgnosulfonates, naphthalene sulfonates and melamine sultanates separately or in a mixture in any
3 Attorney docket No..A.A0961 combination. The plasticizer is used in an amount of up to 1% of dry matter by weight of cement.
1000141 It is preferable that in the plasticizing additive the defoamer does not comprise more than 50% of the insertion pla.sticizer.
1000151 in order to obtain the necessary mobility and sufficient viscosity of mixtures, and to avoid its separation, plasticizer 18 chosen so that the resulting material on one hand is sufficiently fluid, namely slump flow should be between .55 cm to 75 cm, and on the other hand the content of air should be in the range from 1% to 4% of volume.
Thus, in the claimed method the plasticizing additive supplied for -mixture consists of a plasticizer and a defoamer in the amount of 1.0 kg ni.2' to 3.0 kg / rn3 which allows obtaining a plastic concrete mass which fills the entire space between the pipes and also after hardening concrete coating will have a high density_ In. the plasticizing additive defoamer content shall not exceed 50%.
The increase of the defoamer volume leads to a sharp decrease of fluidity of the concrete mix and the appearance of voids in the concrete coating, which hinders the.
characteristics of the compressive strength of the concrete coating. Smaller volumes of the defoamer of less than 1% increases the air content of the concrete mix resulting in reduced concrete coating density.
The ratio of water to cement, selected in the range of 0.31 to 0,63 is necessary to achieve the desired mobility and strength of the concrete material, The decrease of water volumes leads to the reduction of mobility of the concrete and the appearance of air voids after solidification, and the increase of water volumes leads to the delamination and loss of compressive strength of concrete pavement, 10001.6,1 Below is the example of the application of the claimed method of pipeline protective concrete weight coating manufacturing by using barite ore as aggregate which does not limit the scope of the present claim, 1000171 An example of the method application. At first the preparation, of the starting components of the mixture shall be carried out. The process of preparing the components of the concrete mix comprises grinding of inert aggregate, such as barite ore to a size not exceeding 10 mm. The use of larger .fractiorts of a aggregate leads to decrease in density of the coating. If necessary, barite ore is heated to 5'(:: (max), while closely observing the melting of the pieces of rock stuck together (frozen together) to prevent separation of the ballast mixture during transportation. Then the, moisture content of ba.ritc ore is measured.. As a result of the humidity measurement the content of' barite ore in the composition of ballast material is calculated according to the formula.:
10001.81 in ¨ / - W/ 100)
1000141 It is preferable that in the plasticizing additive the defoamer does not comprise more than 50% of the insertion pla.sticizer.
1000151 in order to obtain the necessary mobility and sufficient viscosity of mixtures, and to avoid its separation, plasticizer 18 chosen so that the resulting material on one hand is sufficiently fluid, namely slump flow should be between .55 cm to 75 cm, and on the other hand the content of air should be in the range from 1% to 4% of volume.
Thus, in the claimed method the plasticizing additive supplied for -mixture consists of a plasticizer and a defoamer in the amount of 1.0 kg ni.2' to 3.0 kg / rn3 which allows obtaining a plastic concrete mass which fills the entire space between the pipes and also after hardening concrete coating will have a high density_ In. the plasticizing additive defoamer content shall not exceed 50%.
The increase of the defoamer volume leads to a sharp decrease of fluidity of the concrete mix and the appearance of voids in the concrete coating, which hinders the.
characteristics of the compressive strength of the concrete coating. Smaller volumes of the defoamer of less than 1% increases the air content of the concrete mix resulting in reduced concrete coating density.
The ratio of water to cement, selected in the range of 0.31 to 0,63 is necessary to achieve the desired mobility and strength of the concrete material, The decrease of water volumes leads to the reduction of mobility of the concrete and the appearance of air voids after solidification, and the increase of water volumes leads to the delamination and loss of compressive strength of concrete pavement, 10001.6,1 Below is the example of the application of the claimed method of pipeline protective concrete weight coating manufacturing by using barite ore as aggregate which does not limit the scope of the present claim, 1000171 An example of the method application. At first the preparation, of the starting components of the mixture shall be carried out. The process of preparing the components of the concrete mix comprises grinding of inert aggregate, such as barite ore to a size not exceeding 10 mm. The use of larger .fractiorts of a aggregate leads to decrease in density of the coating. If necessary, barite ore is heated to 5'(:: (max), while closely observing the melting of the pieces of rock stuck together (frozen together) to prevent separation of the ballast mixture during transportation. Then the, moisture content of ba.ritc ore is measured.. As a result of the humidity measurement the content of' barite ore in the composition of ballast material is calculated according to the formula.:
10001.81 in ¨ / - W/ 100)
4 Attorney docket No. A.A.0961 10001.91 where jnj is the weight of barite ore accounting air humidity, 1000201 - weight of barite ore in nominal recipe, 1000211 W - moisture content expressed as a percentage.
1000221 Barite ore is sifted through dresser to separate coarse fraction impurities. Then the barite ore and Portland cement in the amount of its content in the mixture of 8,8% to 20.0% is supplied to the scales through a conveyor system., where the components are weighed according to the specification of the structure. Particle size distribution of the aggregate is shown in Table 1, the selection of ratios is due to the production of ballast coating with a given density.
1000231 To ensure the fluidity of the concrete mix during filling the plasticizing additive is added in an amount of 1,0 kg / m to 3.0 kg / m3. Plasticizing additive is a mixture of pla.sticizer and defoamen Moreover, the amount of the delOamer in plasticizing additive should be. not more than. 50%. Tributyl phosphate or self-dispersing,, anhydrous Penta.-46041m silicone defoamer can be used as a d.efoamer, Any known plasticizers, such as 1.5 lignosulfonatcs, naphthalene sulfonates and melamine stdfonates can be used as a plasticizer.
These plasticizers can be used separately or in any combination with no influence on the claimed technical result The amount of plasticizer should be no more than 1%
on dry matter by weight of cement.
1000241 The resulting mixture is added by water at the water to cement ratio from 0.31 to 0,63, and mixed thoroughly. Stirring is continued until a uniform homogeneous mixture with thee breaking tapering from 55 cm to 75 cm. The resulting concrete mixture is pumped by concrete pump into the space between the carrier pipe and mounted thereon.
permanent shuttering. This tubular structure i.s assembled on the stand, set at a certain angle.
The injection solution is mode through a special removable plug at the end of the pipe. This design is inclined to fill in (one end lower than the other) and the tilling is done through the end located below. Pumping con.crete mix is carried out till the concrete pump fulfilled the structure - to yield a mixture from the nozzle of cover located above and.
opposite site. After completion of the filling the structure it is displayed for a soaking time until curing is not less than 51v1Pa, and then stored to a set to achieve of transport strength of not less than 22 M.Pa.
1000251 Depending on process requirements various types of external.
permanent shuttering may be used during the filling of the pipe .construction, for example, spiral steel shuttering, locks may be performed inside and outside the construction and can be painted or coated with various polymeric materials, which allows to obtain different characteristics of products.
$
Attorney docket No. A.A.0961.
1000261 To reinforce the structure the arrangement of the reinforcement (steel or plastic) in the form of rods or mesh connected by welding or linked) is possible in the space between the pipe and the permanent shuttering, and to enhance the strength of the concrete it is possible to use fibers (steel or plastic).
1000271 The claimed method allows achieving accurately a desired density of the concrete protective weight coating of the pipeline in the range of 2600 to 3400 kg / m.
Determination of the average density of the mixture is made in accordance with GOST 12730.1-78. The compressive strength is determined in accordance with GosT lot80-90.
1000291 A.ggregates can be used to have coating with different characteristics in density and strength not only barite, but iron ore, gabbro-diabase, granite.
These aggregates can be used separately and in various combinations_ Examples of compounds used in the process and the resulting protected densities and compressive strength of the obtained coating are shown in Table 2. When used as part of a combination of different aggregates fractional content is crushed (in reparation) for each component separately. Thus, tine aggregate and coarse fractions are composed of the same components and in the proportions shown in Table 1_ 1000301 The stated quantities of submitted Mitial components and the main.
characteristics of the resulting mixture have been identified in numerous field experiments, the results of which are shown in Table 1 and Table 2. Table 1 shows the particle size distribution of aggregates. The presence of the tines in the aggregate creates conditions that reduce stratification of the protective concrete weight of the material in the process of fuifiliing 1000311 Table 2 shows examples of various formulations of the protective weight coating of the pipeline components with different densities and provides compressive strength obtained for each ballast material composition, as well as data on the resulting coating according to the prototype.
1000321 Table 1 Title of the component 7 Density kg / ern3 (irram size, tam.
Barite, ore from 3.7 to 4.1 1.1p to 0.16 up to 8%.
. , from 0.16 to 1.25 up to 35%
from 1.25 to 2.5 up to 37%
from 2.5 to 10,0 rest Attorney docket No. AA.0961 Iron-ore from 3.8 to 4.5 lip to 0.16 up to 8%; 1 from 0.16 to 1.25 up to 35% 1 from 1.25 to 2.5 up to 37%
from 2.5 to 10.0 rest _____________ -Gabbro-diabase from 3.01 to 3.06 Up to 0,16 up to 8%;
from 0.16 to 1.25 up to 35%
from 1.25 to 2.5 up to 37%
from. 2.5 to 10.0 rest ____________________ , - ....
Granite from 2.56 to 2.62 Up to 0.16 up to 8%;
from 0.16 to 1.25 up to :35%
from 1.25 to 2.5 up to 37%
from 2.5 to 10.0 rest ..a.
1000331 - Table 2.
Components 1 2 3 l 4 5 6 7T8 -Cement, kg / rn"* 470 480 450 i 450 340 350 486t Water, kg / in3 210 172.8 194 210 150 150 210 Plasticizing additive, 1.2 1.92 1.2 1.3 2.6 2.6 1.24 1.2 kg / IT13 Gravel* - .
Barite ore, kg / m3* .. - - 700 800 600 - 2560 ____________________ .... ..
Iron-Containing ores, - - - 750 2060 2100 -kg I, rni*
Ga.bbro-diabase, : 650 - 2230 950 2300 --kg / tn34 !
! _,..õõ,.,, Granite, kg / tn3 * 990 1979 - . I- i --Sand* - - - - .
._ Water-cement ratio 0.45 0.36 0.43 ' 0.47 0.44 0,43 0.44 0.6 , ---, The 'air content before 2.8 1.7 2.7 2.0 1.9 1.8 1..8 2.5 structure fulfilling, %
_. .. -Blurred cone, cm 57 68 58 ' 60 62 64 55 62 DaLsity, kg / m3 2600 2450 2800 3000 Compressive strength, 48 74 48 Si 49 48 42 47 N4Pa [QM 41 Continued Table 2 -- -Attorney docket No. .AA 096I
F-63Triponents 9 1 12 13 T 14 13 7 14 15 Prototype I
I content 7.,--Cement, kg / m3* 430 430 430 i 450 460 460 420 __________________________________ -i 420 Water, kg / r&210 210 200 , 200 210 210 210 190 I ¨
Plasticizing additive, :1.3 2.1 cis-r-L, 2.1. L4 2.6 -, , kg / tri3* i ..- - --.--Gravel* 1140 ....L...... ¨
Barite ore, kg / m3* 600 ' 500 500 500 -,-Iron-containing ores, 2050 2000 r-900 900 1500 -kg / irt3* 1 ,---Ga.bbro-diabase, 560 I 650 1230 500 i kg/mu 1 Granite, kg / rn3* 1.30U r 520 I 300 __ 800 300 370 H,¨ ________________________________________________ - ¨
Sand* 1 --I-----Water-cement ratio 0,49 0,45 ...... --, The air content before 2,5 2.5 275-4- 2.5 2.5 2.5 2.5 , structure fulfilling, % i , -r-Blurred cone, cm 55 56 54 65 60 56 55 .
Density, kg / m3 Compressive strength, 47 47 48 --jr 60 55 56 40 45 IVI.Pa ..µ.... . .... ... 1 ...1 ..,.
[000351 * The presented data are shown in the table on a dry matter basis, , 1000361 . While the invention has been described with reference to an exemplary embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention, in addition, many modifications ma.y be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof_ Therefore, it is intended that the invention not be limited to the particular embodiment disclosed. as the best mode contemplated for carrying out this invention, but that the invention will include all embodiments falling within the scope of the appended claims.
1000221 Barite ore is sifted through dresser to separate coarse fraction impurities. Then the barite ore and Portland cement in the amount of its content in the mixture of 8,8% to 20.0% is supplied to the scales through a conveyor system., where the components are weighed according to the specification of the structure. Particle size distribution of the aggregate is shown in Table 1, the selection of ratios is due to the production of ballast coating with a given density.
1000231 To ensure the fluidity of the concrete mix during filling the plasticizing additive is added in an amount of 1,0 kg / m to 3.0 kg / m3. Plasticizing additive is a mixture of pla.sticizer and defoamen Moreover, the amount of the delOamer in plasticizing additive should be. not more than. 50%. Tributyl phosphate or self-dispersing,, anhydrous Penta.-46041m silicone defoamer can be used as a d.efoamer, Any known plasticizers, such as 1.5 lignosulfonatcs, naphthalene sulfonates and melamine stdfonates can be used as a plasticizer.
These plasticizers can be used separately or in any combination with no influence on the claimed technical result The amount of plasticizer should be no more than 1%
on dry matter by weight of cement.
1000241 The resulting mixture is added by water at the water to cement ratio from 0.31 to 0,63, and mixed thoroughly. Stirring is continued until a uniform homogeneous mixture with thee breaking tapering from 55 cm to 75 cm. The resulting concrete mixture is pumped by concrete pump into the space between the carrier pipe and mounted thereon.
permanent shuttering. This tubular structure i.s assembled on the stand, set at a certain angle.
The injection solution is mode through a special removable plug at the end of the pipe. This design is inclined to fill in (one end lower than the other) and the tilling is done through the end located below. Pumping con.crete mix is carried out till the concrete pump fulfilled the structure - to yield a mixture from the nozzle of cover located above and.
opposite site. After completion of the filling the structure it is displayed for a soaking time until curing is not less than 51v1Pa, and then stored to a set to achieve of transport strength of not less than 22 M.Pa.
1000251 Depending on process requirements various types of external.
permanent shuttering may be used during the filling of the pipe .construction, for example, spiral steel shuttering, locks may be performed inside and outside the construction and can be painted or coated with various polymeric materials, which allows to obtain different characteristics of products.
$
Attorney docket No. A.A.0961.
1000261 To reinforce the structure the arrangement of the reinforcement (steel or plastic) in the form of rods or mesh connected by welding or linked) is possible in the space between the pipe and the permanent shuttering, and to enhance the strength of the concrete it is possible to use fibers (steel or plastic).
1000271 The claimed method allows achieving accurately a desired density of the concrete protective weight coating of the pipeline in the range of 2600 to 3400 kg / m.
Determination of the average density of the mixture is made in accordance with GOST 12730.1-78. The compressive strength is determined in accordance with GosT lot80-90.
1000291 A.ggregates can be used to have coating with different characteristics in density and strength not only barite, but iron ore, gabbro-diabase, granite.
These aggregates can be used separately and in various combinations_ Examples of compounds used in the process and the resulting protected densities and compressive strength of the obtained coating are shown in Table 2. When used as part of a combination of different aggregates fractional content is crushed (in reparation) for each component separately. Thus, tine aggregate and coarse fractions are composed of the same components and in the proportions shown in Table 1_ 1000301 The stated quantities of submitted Mitial components and the main.
characteristics of the resulting mixture have been identified in numerous field experiments, the results of which are shown in Table 1 and Table 2. Table 1 shows the particle size distribution of aggregates. The presence of the tines in the aggregate creates conditions that reduce stratification of the protective concrete weight of the material in the process of fuifiliing 1000311 Table 2 shows examples of various formulations of the protective weight coating of the pipeline components with different densities and provides compressive strength obtained for each ballast material composition, as well as data on the resulting coating according to the prototype.
1000321 Table 1 Title of the component 7 Density kg / ern3 (irram size, tam.
Barite, ore from 3.7 to 4.1 1.1p to 0.16 up to 8%.
. , from 0.16 to 1.25 up to 35%
from 1.25 to 2.5 up to 37%
from 2.5 to 10,0 rest Attorney docket No. AA.0961 Iron-ore from 3.8 to 4.5 lip to 0.16 up to 8%; 1 from 0.16 to 1.25 up to 35% 1 from 1.25 to 2.5 up to 37%
from 2.5 to 10.0 rest _____________ -Gabbro-diabase from 3.01 to 3.06 Up to 0,16 up to 8%;
from 0.16 to 1.25 up to 35%
from 1.25 to 2.5 up to 37%
from. 2.5 to 10.0 rest ____________________ , - ....
Granite from 2.56 to 2.62 Up to 0.16 up to 8%;
from 0.16 to 1.25 up to :35%
from 1.25 to 2.5 up to 37%
from 2.5 to 10.0 rest ..a.
1000331 - Table 2.
Components 1 2 3 l 4 5 6 7T8 -Cement, kg / rn"* 470 480 450 i 450 340 350 486t Water, kg / in3 210 172.8 194 210 150 150 210 Plasticizing additive, 1.2 1.92 1.2 1.3 2.6 2.6 1.24 1.2 kg / IT13 Gravel* - .
Barite ore, kg / m3* .. - - 700 800 600 - 2560 ____________________ .... ..
Iron-Containing ores, - - - 750 2060 2100 -kg I, rni*
Ga.bbro-diabase, : 650 - 2230 950 2300 --kg / tn34 !
! _,..õõ,.,, Granite, kg / tn3 * 990 1979 - . I- i --Sand* - - - - .
._ Water-cement ratio 0.45 0.36 0.43 ' 0.47 0.44 0,43 0.44 0.6 , ---, The 'air content before 2.8 1.7 2.7 2.0 1.9 1.8 1..8 2.5 structure fulfilling, %
_. .. -Blurred cone, cm 57 68 58 ' 60 62 64 55 62 DaLsity, kg / m3 2600 2450 2800 3000 Compressive strength, 48 74 48 Si 49 48 42 47 N4Pa [QM 41 Continued Table 2 -- -Attorney docket No. .AA 096I
F-63Triponents 9 1 12 13 T 14 13 7 14 15 Prototype I
I content 7.,--Cement, kg / m3* 430 430 430 i 450 460 460 420 __________________________________ -i 420 Water, kg / r&210 210 200 , 200 210 210 210 190 I ¨
Plasticizing additive, :1.3 2.1 cis-r-L, 2.1. L4 2.6 -, , kg / tri3* i ..- - --.--Gravel* 1140 ....L...... ¨
Barite ore, kg / m3* 600 ' 500 500 500 -,-Iron-containing ores, 2050 2000 r-900 900 1500 -kg / irt3* 1 ,---Ga.bbro-diabase, 560 I 650 1230 500 i kg/mu 1 Granite, kg / rn3* 1.30U r 520 I 300 __ 800 300 370 H,¨ ________________________________________________ - ¨
Sand* 1 --I-----Water-cement ratio 0,49 0,45 ...... --, The air content before 2,5 2.5 275-4- 2.5 2.5 2.5 2.5 , structure fulfilling, % i , -r-Blurred cone, cm 55 56 54 65 60 56 55 .
Density, kg / m3 Compressive strength, 47 47 48 --jr 60 55 56 40 45 IVI.Pa ..µ.... . .... ... 1 ...1 ..,.
[000351 * The presented data are shown in the table on a dry matter basis, , 1000361 . While the invention has been described with reference to an exemplary embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention, in addition, many modifications ma.y be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof_ Therefore, it is intended that the invention not be limited to the particular embodiment disclosed. as the best mode contemplated for carrying out this invention, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (4)
1. A method for manufacturing a protective concrete weight coating for pipelines said method comprising the steps of:
mixing cement, aggregate, a plasticizing additive and water, pumping the resultant mixture comprising the cement, aggregate, the plasticizing additive and the water into an annular space formed by the outer surface of a pipeline and a permanent form mounted with clearance thereon, and setting the resultant:
coating, wherein a portland cement is supplied for mixing in an amount such that the mixture contains from 8.8 wt,% to 20.0 wt.%, water is added in an amount such that the ratio of water to cement is from 0.31 to 0.63, the plasticizing additive, in the form of a plasticizer and a defoamer, is supplied for mixing in an amount of from 1,0 kg/m3 to 3.0 kg/m3 , the aggregate supplied for mixing is selected from barium ore or an iron-bearing ore, or gabbro-diabase, or granite, with particle size not exceeding 10 mm, the resultant concrete mixture has a flow behaviour index, measured by the slump of a cone, which is equal to from 55 cm to 75 cm, and an air content of from 1% to 4% of the volume, and the aggregate of mixture has the following particle size distribution:
up toØ16 mm - up to 8%, from 0,16 mm to 1.25 mm - up to 35%, from 1,25 mm to 2,5 - up to 37%, from 2.5 mm to 10.0 mm - the rest.
mixing cement, aggregate, a plasticizing additive and water, pumping the resultant mixture comprising the cement, aggregate, the plasticizing additive and the water into an annular space formed by the outer surface of a pipeline and a permanent form mounted with clearance thereon, and setting the resultant:
coating, wherein a portland cement is supplied for mixing in an amount such that the mixture contains from 8.8 wt,% to 20.0 wt.%, water is added in an amount such that the ratio of water to cement is from 0.31 to 0.63, the plasticizing additive, in the form of a plasticizer and a defoamer, is supplied for mixing in an amount of from 1,0 kg/m3 to 3.0 kg/m3 , the aggregate supplied for mixing is selected from barium ore or an iron-bearing ore, or gabbro-diabase, or granite, with particle size not exceeding 10 mm, the resultant concrete mixture has a flow behaviour index, measured by the slump of a cone, which is equal to from 55 cm to 75 cm, and an air content of from 1% to 4% of the volume, and the aggregate of mixture has the following particle size distribution:
up toØ16 mm - up to 8%, from 0,16 mm to 1.25 mm - up to 35%, from 1,25 mm to 2,5 - up to 37%, from 2.5 mm to 10.0 mm - the rest.
2. The method as set forth in claim 1 wherein lignosulfonates, melamine sulfonates and naphthalene sulfonates are applied as the mixture plasticizer separately or in admixture.
3. The method as set. forth in claim 1 wherein the plasticizer is used in an amount of up to 1% of dry matter by weight of cement.
4. The method as set forth in claim 1 wherein the amount of defoamer in the plasticizing additive is less than 50% by weight of the plasticizing additive.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2013129182 | 2013-06-27 | ||
| RU2013129182/03A RU2546699C2 (en) | 2013-06-27 | 2013-06-27 | Method to manufacture protective weighting concrete coating of pipeline |
| PCT/RU2014/000456 WO2014209171A1 (en) | 2013-06-27 | 2014-06-26 | Method for manufacturing a protective concrete weight coating for pipelines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2917067A1 CA2917067A1 (en) | 2014-12-31 |
| CA2917067C true CA2917067C (en) | 2018-04-24 |
Family
ID=52142363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2917067A Expired - Fee Related CA2917067C (en) | 2013-06-27 | 2014-06-26 | Method for manufacturing a protective concrete weight coating for pipelines |
Country Status (6)
| Country | Link |
|---|---|
| CA (1) | CA2917067C (en) |
| EA (1) | EA030349B1 (en) |
| IL (1) | IL242975A0 (en) |
| NO (1) | NO20160074A1 (en) |
| RU (1) | RU2546699C2 (en) |
| WO (1) | WO2014209171A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2647257C2 (en) * | 2016-06-17 | 2018-03-15 | Общество с ограниченной ответственностью "СВАП ИНЖИНИРИНГ" | Method for production of encased pipe with cable-conduit |
| RU2657381C2 (en) * | 2016-11-17 | 2018-06-13 | Общество с ограниченной ответственностью "СВАП ИНЖИНИРИНГ" | Method for production of concrete weight coated pipe with cable trunking |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2288393A (en) * | 1994-04-07 | 1995-10-18 | Orr Adams Francis Alfred | Cementitious coatings |
| FR2784048B1 (en) * | 1998-10-05 | 2000-12-15 | Lafarge Aluminates | TUBE INTERIORLY COATED WITH A CEMENTING COMPOSITION AND PROCESS FOR PRODUCING THE SAME |
| RU2399828C2 (en) * | 2008-07-07 | 2010-09-20 | Общество с ограниченной ответственностью "Балластные трубопроводы СВАП" | Ballast material |
| RU2412393C1 (en) * | 2009-11-11 | 2011-02-20 | Общество с ограниченной ответственностью "Балластные трубопроводы СВАП" | Procedure for preparing ballast material for underwater pipeline |
| RU2453515C1 (en) * | 2010-12-03 | 2012-06-20 | Общество с ограниченной ответственностью "Балластные трубопроводы СВАП" | Method to prepare concrete mixture to manufacture ballast pipe and device for previous preparation of concrete mixture tempering water |
| RU2437020C1 (en) * | 2010-12-08 | 2011-12-20 | Общество с ограниченной ответственностью "Балластные трубопроводы СВАП" | Ballast material for under water mains |
-
2013
- 2013-06-27 RU RU2013129182/03A patent/RU2546699C2/en active
-
2014
- 2014-06-26 EA EA201501155A patent/EA030349B1/en not_active IP Right Cessation
- 2014-06-26 CA CA2917067A patent/CA2917067C/en not_active Expired - Fee Related
- 2014-06-26 WO PCT/RU2014/000456 patent/WO2014209171A1/en active Application Filing
-
2015
- 2015-12-20 IL IL242975A patent/IL242975A0/en unknown
-
2016
- 2016-01-14 NO NO20160074A patent/NO20160074A1/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014209171A1 (en) | 2014-12-31 |
| CA2917067A1 (en) | 2014-12-31 |
| EA201501155A1 (en) | 2016-05-31 |
| IL242975A0 (en) | 2016-02-29 |
| RU2546699C2 (en) | 2015-04-10 |
| NO20160074A1 (en) | 2016-01-14 |
| EA030349B1 (en) | 2018-07-31 |
| RU2013129182A (en) | 2015-01-10 |
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