CN113526924A - Special grouting material for offshore wind power suction type foundation and preparation method thereof - Google Patents
Special grouting material for offshore wind power suction type foundation and preparation method thereof Download PDFInfo
- Publication number
- CN113526924A CN113526924A CN202110647926.XA CN202110647926A CN113526924A CN 113526924 A CN113526924 A CN 113526924A CN 202110647926 A CN202110647926 A CN 202110647926A CN 113526924 A CN113526924 A CN 113526924A
- Authority
- CN
- China
- Prior art keywords
- grouting material
- parts
- agent
- wind power
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/70—Grouts, e.g. injection mixtures for cables for prestressed concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
The invention relates to the technical field of grouting materials, in particular to a special grouting material for offshore wind power suction foundation and a preparation method thereof.
Description
Technical Field
The invention relates to the technical field of grouting materials, in particular to a special grouting material for an offshore wind power suction type foundation and a preparation method thereof.
Background
With the rapid development of offshore wind power construction projects in China, the construction scale of offshore wind power plants is continuously enlarged, so that the construction area tends to a deeper sea area, and the requirements for the basic form of a fan are continuously improved and updated. In 2020, the suction foundation is successfully applied to domestic offshore wind power for the first time, so that foundation construction can be completed without external force such as piling, the offshore construction operation time is greatly saved, the engineering cost is greatly reduced, and the offshore construction risk is effectively controlled. Meanwhile, the application of the technology effectively reduces the pollution of offshore wind power engineering construction to the marine environment, and becomes the first choice foundation of offshore wind power in deep and distant sea areas in the future
The existing offshore wind turbine grouting material has the advantages that under the condition of the same volume, the dry powder consumption of unit volume of mixed slurry is large, the water consumption is small, and therefore the construction cost is relatively high. Therefore, the grouting material special for the offshore wind power suction foundation and the preparation method thereof are provided to solve the problems.
Disclosure of Invention
The invention aims to provide a special grouting material for offshore wind power suction type foundation and a preparation method thereof so as to solve the technical problems.
In order to achieve the purpose, the invention provides the following technical scheme: the grouting material special for the offshore wind power suction foundation comprises the following raw materials in parts by weight: 220 portions and 330 portions of fly ash; 100 portions and 180 portions of cement; 60-110 parts of mineral powder; 1-2 parts of an expanding agent; 1-2 parts of a water reducing agent; 1-2 parts of a fiber agent; 1-2 parts of an anti-dispersant; water 300-380 parts.
Preferably, the fly ash is one or more of primary fly ash and secondary fly ash.
Preferably, the cement is ordinary portland cement with the reference number of P.032.5.
Preferably, the mineral powder is micro mineral powder.
Preferably, the grouting material further comprises the following raw materials in parts by weight: 1-2 parts of flocculant and 1-2 parts of water-retaining agent.
Preferably, the water is seawater.
A preparation method of a special grouting material for offshore wind power suction type foundation comprises the following steps:
s1: accurately weighing cement, fly ash and mineral powder in proportion, and then uniformly mixing in a mixer;
s2: adding an expanding agent, a water reducing agent, a fiber agent, an anti-dispersing agent, a flocculating agent and a water-retaining agent into the product obtained in S1, continuously stirring for 10-60min,
s3: adding fresh water or seawater into the product obtained in S2, and continuously stirring for 3-10min to obtain low-strength grouting material
Compared with the prior art, the invention has the beneficial effects that:
the low-strength grouting material provided by the invention is prepared by taking cement, fly ash and mineral powder as main materials and adding additives with high fluidity, bleeding prevention, dispersion resistance, micro-expansion, segregation prevention and the like to mix and match, and the use amount of dry powder is reduced.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a technical scheme that: the grouting material special for the offshore wind power suction foundation comprises the following raw materials in parts by weight: 220 portions and 330 portions of fly ash; 100 portions and 180 portions of cement; 60-110 parts of mineral powder; 1-2 parts of an expanding agent; 1-2 parts of a water reducing agent; 1-2 parts of a fiber agent; 1-2 parts of an anti-dispersant; water 300-380 parts.
The main functions of the fly ash are as follows: the water absorption of the grouting material is improved, bleeding is reduced, and the fluidity and the water retention of the grouting material mixture can be improved to a certain extent; the fly ash is fine ash collected from flue gas generated after coal combustion, is main solid waste discharged by a coal-fired power plant, and can be recycled, such as being used as an admixture of concrete.
The main functions of the mineral powder are as follows: improve the segregation and bleeding performance of the grouting material, reduce the density and reduce the bleeding of the grouting material mixture. "powdered ore" refers to stone powder and its substitute meeting the engineering requirements. The method is a product obtained by crushing and processing ore, is a first step of ore processing and smelting and the like, and is one of the most important steps. The hydrophilic coefficient of the mineral powder is the ratio of the volume of the unit mineral powder expanded in the same volume of water (polar molecules) and kerosene (non-polar molecules); .
The main functions of the expanding agent are as follows: can make the grout material have compensation shrink performance, can effectual restriction grout material shrink, improve the water retention of grout material nevertheless can cause the decline of mobility. The "expanding agent" refers to a material which can cause volume expansion through a physical and chemical reaction, and the volume expansion can be applied to a plurality of fields such as material production, silent blasting and the like. The common concrete expanding agent and the common refractory material expanding agent are mainly used for compensating the shrinkage of the material in the hardening process and preventing cracking. In recent years, static blasting agents have also been developed, based on the material properties, which destroy the structural structure mainly by volume expansion of the material.
The water reducing agent mainly has the following functions: after the grouting material is mixed with water, cement particles attract each other to form a plurality of floccules in water. In the flocculent structure, a plurality of mixing water is wrapped, so that the water cannot play a role in increasing the fluidity of the slurry. When the water reducing agent is added, the water reducing agent can break up the flocculent structures and liberate the wrapped free water, so that the fluidity of the mixture is improved, and the water reducing agent is a concrete admixture capable of reducing the water consumption for mixing under the condition of maintaining the slump constant of the concrete.
The main functions of the fiber agent are as follows: the right amount of cellulose has better water retention, thickening and bleeding improving effects on the grouting material. When the fiber agent is excessive, the fluidity of the grouting material mixture is reduced, and when the fiber agent is too little, the grouting material mixture bleeds.
The main functions of the anti-dispersant are: improve the anti dispersibility of grouting material mixture in aqueous, reduce grouting material component and disperse in aqueous, the quantity can lead to grouting material mixture in aqueous dispersion too little, and the quantity can lead to grouting material mixture mobility to reduce too much.
Specifically, the fly ash is one or more of primary fly ash and secondary fly ash.
Specifically, the cement is ordinary portland cement with the reference number of P.032.5.
Specifically, the mineral powder is micro mineral powder.
Specifically, the grouting material also comprises the following raw materials in parts by weight: 0-2 parts of flocculant and 0-1 part of water-retaining agent.
Specifically, the water is seawater.
A preparation method of a special grouting material for offshore wind power suction type foundation comprises the following steps:
s1: accurately weighing cement, fly ash and mineral powder in proportion, uniformly mixing in a mixer, crushing and filtering the cement, the fly ash and the mineral powder in advance before adding the cement, the fly ash and the mineral powder, namely avoiding non-uniform mixing caused by agglomeration of the cement, the fly ash and the mineral powder, and stirring the cement, the fly ash and the mineral powder in a stirring and feeding manner at a stirring speed of 500r/min for 20 minutes;
s2: adding an expanding agent, a water reducing agent, a fiber agent, an anti-dispersing agent, a flocculating agent and a water-retaining agent into the product obtained in the step S1, continuously stirring for 10-60min, sequentially adding various additives into the mixture, finishing the feeding of the additives for not less than 2 min, continuously stirring for 40min after all the additives are fed, and keeping the stirring speed at 350 r/min;
s3: and (4) adding seawater into the product obtained in the step (S2), and continuously stirring for 3-10min to obtain the low-strength grouting material. And meanwhile, sampling to perform a grouting material test after obtaining the low-strength grouting material, and detecting whether the product performance of the produced sample can achieve the expected effect.
The first embodiment is as follows:
the grouting material comprises the following raw materials in percentage by weight: 220 parts of fly ash; 100 parts of cement; 60 parts of mineral powder; 1 part of an expanding agent; 1 part of a water reducing agent; 1 part of a fiber agent; 1 part of anti-dispersant; 1 part of a flocculating agent; 1 part of water-retaining agent; 340 parts of water.
S1: crushing and filtering the fly ash, the cement and the mineral powder according to the preset weight part, and then adding the fly ash, the cement and the mineral powder into a mixer to mix in a manner of adding materials and stirring at the same time, wherein the stirring speed is 500r/min, and the stirring time is 20 minutes;
s2: sequentially adding an expanding agent, a water reducing agent, a fiber agent, an anti-dispersing agent, a flocculating agent and a water-retaining agent into the product obtained in the step S1, finishing the feeding time of each additive for not less than 2 minutes, and continuously stirring for 40 minutes after all the additives are fed, wherein the stirring speed is 350 r/min;
s3: and (4) adding seawater into the product obtained in the step (S2), continuously stirring for 7min to obtain low-strength grouting material, sampling for grouting material test, and detecting whether the product performance of the produced sample can achieve the expected effect.
Example two:
the grouting material comprises the following raw materials in percentage by weight: 310 parts of fly ash; 110 parts of cement; 80 parts of mineral powder; 2 parts of an expanding agent; 2 parts of a water reducing agent; 2 parts of a fiber agent; 2 parts of an anti-dispersant; 2 parts of a flocculating agent; 2 parts of a water-retaining agent; and 360 parts of water.
The performance of the low-strength grouting material prepared in the embodiment is tested, and the specific performances are as follows: the grouting material has no caking in appearance, the density of the grouting material is 1300-: the initial fluidity is more than or equal to 290mm, 30min is more than or equal to 260mm, 240min is more than or equal to 230mm, and 480min is more than or equal to 150 mm; the bleeding rate is 0% in 24 h; compressive strength: the 7d compressive strength is more than or equal to 0.2MPa, and the 0.5MPa is less than or equal to 28d compressive strength is less than or equal to 5 MPa;
the low-strength grouting material provided by the invention is prepared by taking cement, fly ash and mineral powder as main materials and adding additives with high fluidity, bleeding prevention, dispersion resistance, micro-expansion, segregation prevention and the like to mix and match, and the use amount of dry powder is reduced.
Although embodiments of the present invention have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the claims and their equivalents.
Claims (6)
1. The utility model provides a special grouting material of offshore wind power suction formula basis which characterized in that: the grouting material comprises the following raw materials in parts by weight: 220 portions and 330 portions of fly ash; 100 portions and 180 portions of cement; 60-110 parts of mineral powder; 1-2 parts of an expanding agent; 1-2 parts of a water reducing agent; 1-2 parts of a fiber agent; 1-2 parts of an anti-dispersant; water 300-; 1-2 parts of a flocculating agent; 1-2 parts of a water-retaining agent.
2. The grouting material special for offshore wind power suction foundation according to claim 1, characterized in that: the fly ash is one or more of first-grade fly ash and second-grade fly ash.
3. The grouting material special for offshore wind power suction foundation according to claim 1, characterized in that: the cement is ordinary Portland cement with the label P.032.5.
4. The grouting material special for offshore wind power suction foundation according to claim 1, characterized in that: the mineral powder is micro mineral powder.
5. The grouting material special for offshore wind power suction foundation according to claim 1, characterized in that: the water is seawater.
6. The preparation method of the grouting material special for the offshore wind power suction foundation according to any one of claims 1 to 5, wherein the grouting material comprises the following components in percentage by weight: the preparation method comprises the following steps:
s1: accurately weighing cement, fly ash and mineral powder in proportion, and then uniformly mixing in a mixer;
s2: adding an expanding agent, a water reducing agent, a fiber agent, an anti-dispersing agent, a flocculating agent and a water-retaining agent into the product obtained in S1, continuously stirring for 10-60min,
s3: adding fresh water or seawater into the product obtained in S2, and continuously stirring for 3-10min to obtain the low-strength grouting material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110647926.XA CN113526924A (en) | 2021-06-10 | 2021-06-10 | Special grouting material for offshore wind power suction type foundation and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110647926.XA CN113526924A (en) | 2021-06-10 | 2021-06-10 | Special grouting material for offshore wind power suction type foundation and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113526924A true CN113526924A (en) | 2021-10-22 |
Family
ID=78124774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110647926.XA Pending CN113526924A (en) | 2021-06-10 | 2021-06-10 | Special grouting material for offshore wind power suction type foundation and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113526924A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115819049A (en) * | 2023-02-20 | 2023-03-21 | 呼和浩特市巨日特种化工建材有限公司 | Cement-based grouting material for mounting wind power foundation tower barrel base and preparation method thereof |
| CN117550870A (en) * | 2024-01-12 | 2024-02-13 | 中建材中岩科技有限公司 | Low-density grouting material for offshore wind power suction barrel and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106747128A (en) * | 2017-03-10 | 2017-05-31 | 中建商品混凝土有限公司 | A kind of big fluidised form High Strength Non-shrinking Filling Material and preparation method thereof |
| CN107176812A (en) * | 2017-07-19 | 2017-09-19 | 张聪聪 | High intensity contraction-free grouting concrete and its production method |
| CN108947360A (en) * | 2018-09-12 | 2018-12-07 | 十堰市郧阳区成林工贸有限责任公司 | High Strength Non-shrinking Filling Material and preparation method thereof |
| CN111620589A (en) * | 2020-04-24 | 2020-09-04 | 佳固士(浙江)新材料有限公司 | Cement grouting material additive capable of adapting to various working conditions and improving performance of grouting material and preparation method and application thereof |
| CN112759320A (en) * | 2020-12-21 | 2021-05-07 | 中国石油大学(华东) | High-fluidity low-density grouting material for offshore wind power suction pile foundation |
-
2021
- 2021-06-10 CN CN202110647926.XA patent/CN113526924A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106747128A (en) * | 2017-03-10 | 2017-05-31 | 中建商品混凝土有限公司 | A kind of big fluidised form High Strength Non-shrinking Filling Material and preparation method thereof |
| CN107176812A (en) * | 2017-07-19 | 2017-09-19 | 张聪聪 | High intensity contraction-free grouting concrete and its production method |
| CN108947360A (en) * | 2018-09-12 | 2018-12-07 | 十堰市郧阳区成林工贸有限责任公司 | High Strength Non-shrinking Filling Material and preparation method thereof |
| CN111620589A (en) * | 2020-04-24 | 2020-09-04 | 佳固士(浙江)新材料有限公司 | Cement grouting material additive capable of adapting to various working conditions and improving performance of grouting material and preparation method and application thereof |
| CN112759320A (en) * | 2020-12-21 | 2021-05-07 | 中国石油大学(华东) | High-fluidity low-density grouting material for offshore wind power suction pile foundation |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115819049A (en) * | 2023-02-20 | 2023-03-21 | 呼和浩特市巨日特种化工建材有限公司 | Cement-based grouting material for mounting wind power foundation tower barrel base and preparation method thereof |
| CN117550870A (en) * | 2024-01-12 | 2024-02-13 | 中建材中岩科技有限公司 | Low-density grouting material for offshore wind power suction barrel and preparation method thereof |
| CN117550870B (en) * | 2024-01-12 | 2024-04-02 | 中建材中岩科技有限公司 | Low-density grouting material for offshore wind power suction barrel and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Chatveera et al. | Evaluation of nitric and acetic acid resistance of cement mortars containing high-volume black rice husk ash | |
| CN103387412B (en) | Method for producing aerated concrete with refuse incinerator slag and sulfur fixation ash | |
| CN103113062B (en) | Metamorphite machine-made sand concrete capable of inhibiting alkali activity of metamorphite aggregate and preparation method thereof | |
| CN103332892A (en) | Industrial waste residue dry-mixed mortar | |
| CN105541138B (en) | A kind of geopolymer for handling brining ground foundation and preparation method and application | |
| CN104803619B (en) | Geopolymer composition and geopolymer material | |
| CN105439485A (en) | Lithionite slag admixture and its preparation method and use | |
| CN105601135A (en) | Method for preparing geopolymer materials from red mud and coal ash | |
| CN105016675B (en) | A kind of preparation method of the high additive scrap glass powder self-compacting mortar with good volume stability | |
| CN112441792A (en) | Regenerated thermal insulation mortar utilizing biomass ash and preparation method thereof | |
| CN113636767A (en) | Low-carbon cement and preparation method thereof | |
| CN113526924A (en) | Special grouting material for offshore wind power suction type foundation and preparation method thereof | |
| CN111320436A (en) | A kind of carbon nanotube panel concrete mix ratio design and preparation method thereof | |
| CN114180914A (en) | High-strength concrete prepared by applying cobbles | |
| CN116535126B (en) | Transmission tower conductive concrete foundation with natural grounding | |
| CN107382112A (en) | A kind of composite gelled material | |
| CN110183210B (en) | A kind of silt fired brick and preparation method thereof | |
| CN117383892A (en) | Steel slag-based solid waste cementing material containing fluidized bed fly ash, and preparation method and application thereof | |
| CN114180864B (en) | Controllable low-strength material and preparation method thereof | |
| CN112062486B (en) | Low-temperature cement and preparation method thereof | |
| Sunarno et al. | Effect of Accelerators on High Early Strength Concrete (HESC) Using High Volume Fly Ash | |
| Feng et al. | Study on flocculant for underwater non-dispersible concrete | |
| CN111548031B (en) | Mineral powder prepared from industrial waste residues and neutralized residues and preparation method thereof | |
| CN115448655A (en) | Pavement base material based on construction waste and preparation method thereof | |
| WO2023134148A1 (en) | Oil shale semicoke adsorption inhibitor and application thereof in concrete preparation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |