CN113072349A - Good-durability support mud for shield machine - Google Patents
Good-durability support mud for shield machine Download PDFInfo
- Publication number
- CN113072349A CN113072349A CN202110295445.7A CN202110295445A CN113072349A CN 113072349 A CN113072349 A CN 113072349A CN 202110295445 A CN202110295445 A CN 202110295445A CN 113072349 A CN113072349 A CN 113072349A
- Authority
- CN
- China
- Prior art keywords
- parts
- hydroxide
- mud
- weight
- following components
- 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
- C04B28/14—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 calcium sulfate 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
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00724—Uses not provided for elsewhere in C04B2111/00 in mining operations, e.g. for backfilling; in making tunnels or galleries
-
- 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
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)
Abstract
The invention discloses support mud with good durability for a shield machine, which comprises the following components in parts by weight: 55-85 parts of silicate supporting mud clinker, 12-32 parts of carbide slag, 12-32 parts of gypsum, 6-16 parts of fine sand, 5-10 parts of slag, 11-31 parts of ash, 12-15 parts of manganese slag and 5-10 parts of modifying agent, wherein the modifying agent comprises the following components in parts by weight: 2-11 parts of alkali metal hydroxide, 12-32 parts of soluble carbonate, 17-42 parts of aluminate, 2-7 parts of citric acid, 22-37 parts of fly ash, 20-35 parts of gangue and 1-2 parts of a reinforcer. In the modifier, the hydroxide of alkali metal reacts with the gypsum in the support mud to generate soluble sulfate and calcium hydroxide, so that the gypsum loses the delayed coagulation effect, and the C3A quickly enters the solution to precipitate hydrate due to the reduction of the concentration of the gypsum in the solution, so that the support mud is quickly solidified.
Description
Technical Field
The invention relates to the technical field of cement, in particular to support mud with good durability for a shield tunneling machine.
Background
The silicate supporting mud clinker is prepared by using calcium and siliceous materials as main raw materials, preparing raw materials according to a proper proportion, calcining until partial melting, and cooling to obtain a product which is mainly composed of calcium silicate. The calcareous raw material mainly provides CaO, and comprises limestone, chalk, shells, marl, carbide slag, sugar filter mud and the like. The clayey raw materials mainly provide SiO2, Al2O3 and a small amount of Fe2O3, and comprise clay, loess, shale, phyllite, river mud and the like. The correction stock supplements some of the deficient components.
The shield machine is a tunnel boring machine using a shield method, and is called a shield tunnel boring machine or a full-face tunnel boring machine. The construction method of shield constructs is that the entry driving machine lays the support nature section of jurisdiction in the tunnel when tunnelling, and this in-process needs to use the support mud to fix the section of jurisdiction, and current support mud solidifies consuming time longer under high temperature state, leads to the supporting effect relatively poor, consequently, makes corresponding improvement to this problem.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides the support mud for the shield tunneling machine, which is good in durability.
The technical scheme of the invention is as follows: a support mud comprising the following components by weight: 55-85 parts of silicate supporting mud clinker, 12-32 parts of carbide slag, 12-32 parts of gypsum, 6-16 parts of fine sand, 5-10 parts of slag, 11-31 parts of ash and 12-15 parts of manganese slag.
Further, the support mud also comprises 5-10 parts by weight of an improver, wherein the improver comprises the following components in parts by weight: 2-11 parts of alkali metal hydroxide, 12-32 parts of soluble carbonate, 17-42 parts of aluminate, 2-7 parts of citric acid, 22-37 parts of fly ash and 20-35 parts of gangue.
Further, the support mud also comprises 5-10 parts by weight of an improver, wherein the improver comprises the following components in parts by weight: 1 part of potassium hydroxide, 30 parts of sodium carbonate, 15 parts of sodium aluminate, 7 parts of citric acid, 20 parts of fly ash and 27 parts of gangue.
Further, the support mud also comprises 5-10 parts by weight of an improver, wherein the improver comprises the following components in parts by weight: 10 parts of potassium hydroxide, 10 parts of potassium carbonate, 23 parts of sodium aluminate, 2 parts of citric acid, 35 parts of fly ash and 20 parts of gangue.
Further, the support mud also comprises 5-10 parts by weight of an improver, wherein the improver comprises the following components in parts by weight: 5 parts of sodium hydroxide, 10 parts of potassium carbonate, 35 parts of potassium aluminate, 5 parts of citric acid, 25 parts of fly ash and 20 parts of gangue.
Further, the support mud also comprises 1-2 parts of a reinforcing agent, wherein the reinforcing agent comprises the following components in parts by weight: 44-64 parts of fly ash, 6.5-10.5 parts of sodium dodecyl sulfate, 8-12 parts of ethoxylated alkyl sodium sulfate, 5-7.5 parts of sodium carbonate, 8-12 parts of anhydrous sodium sulfate, 5-8 parts of sodium hydroxide, 3-4.5 parts of triethanolamine, 1.5-2.5 parts of aluminum hydroxide and 2-4 parts of ferric hydroxide.
Further, the support mud also comprises 1-2 parts of a reinforcing agent, and the reinforcing agent comprises the following components in parts by weight: 40 parts of fly ash, 7.5 parts of lauryl sodium sulfate, 8 parts of ethoxylated alkyl sodium sulfate, 5 parts of sodium carbonate, 8 parts of anhydrous sodium sulfate, 5 parts of sodium hydroxide, 3 parts of triethanolamine, 1.5 parts of aluminum hydroxide and 2 parts of ferric hydroxide.
Further, the support mud also comprises 1-2 parts of a reinforcing agent, and the reinforcing agent comprises the following components in parts by weight: 60 parts of fly ash, 11.5 parts of lauryl sodium sulfate, 12 parts of ethoxylated alkyl sodium sulfate, 7.5 parts of sodium carbonate, 12 parts of anhydrous sodium sulfate, 8 parts of sodium hydroxide, 4.5 parts of triethanolamine, 2.5 parts of aluminum hydroxide and 4 parts of ferric hydroxide.
Further, the support mud also comprises 1-2 parts of a reinforcing agent, and the reinforcing agent comprises the following components in parts by weight: 50 parts of fly ash, 9.5 parts of lauryl sodium sulfate, 10 parts of ethoxylated alkyl sodium sulfate, 6 parts of sodium carbonate, 10 parts of anhydrous sodium sulfate, 6.5 parts of sodium hydroxide, 3.5 parts of triethanolamine, 2 parts of aluminum hydroxide and 2.5 parts of ferric hydroxide.
Further, the preparation process of the enhancer is as follows: grinding all solid materials to be less than 0.09mm, feeding the solid materials and the residual liquid materials into a mixer together, uniformly stirring, feeding the mixture into drying equipment, and heating to 35-85 ℃ for drying.
Further, the preparation method of the modifying agent comprises the following steps: all the raw materials are mixed and ground by a ball mill, and are sieved by a filter sieve with the diameter of 90 mu m.
In the invention, the alkali metal hydroxide in the modifying agent reacts with the gypsum in the supporting mud to generate soluble sulfate and calcium hydroxide, so that the gypsum loses the delayed coagulation effect, and the C3A rapidly enters the solution to precipitate hydrate due to the reduction of the concentration of the gypsum in the solution, so that the supporting mud is rapidly solidified.
The soluble carbonate can react with calcium hydroxide discharged when the support mud is hydrated to generate insoluble calcium carbonate and calcium bicarbonate, so that the setting time of the support mud concrete is greatly shortened.
When the support mud is hydrated, the aluminate reacts with 3 CaO. Al2O3 and 4 CaO. Al2O 3. Fe2O3 in the support mud to accelerate hydration.
When the support mud is hydrated, a proper amount of citric acid can accelerate hydration of 3 CaO. SiO2 and 3 CaO. Al2O3 to improve early strength of the concrete, accelerate dissolution of CaO, accelerate ion diffusion speed by neutralization of strong base in the formula of the citric acid and the modifier, and improve activation function.
The rainwater is sticky after the pulverized fly ash and the gangue in a proper proportion are ground, so that the cohesiveness of the sprayed concrete slurry can be improved, and the transportability can be improved.
The supporting mud added with the enhancer can reduce the water consumption by 6 to 11 percent, enhance the strength, compactness and workability of the supporting mud and improve the fracture resistance and pressure resistance of the supporting mud.
Detailed Description
Example 1
The supporting mud for the shield machine with good durability comprises the following components in parts by weight: 81 parts of silicate supporting mud clinker, 31 parts of carbide slag, 31 parts of gypsum, 16 parts of fine sand, 10 parts of slag, 31 parts of ash and 15 parts of manganese slag.
The main technical indexes of the support mud are as follows: the fineness is less than or equal to 2.0, the specific surface area is more than or equal to 350, the sulfur trioxide is 2.2 +/-0.2, the three-day compressive strength is more than or equal to 17, and the twenty-eight-day compressive strength is more than or equal to 46. The clinker should be made of raw materials with light color and low aluminum content, so that the adaptability of the support mud is improved.
Example 2
Different from the embodiment 1, the supporting mud of the scheme is composed of 50 parts of silicate supporting mud clinker, 11 parts of carbide slag, 11 parts of gypsum, 5 parts of fine sand, 5 parts of slag, 10 parts of ash and 12 parts of manganese slag.
Example 3
Different from the embodiment 1, the supporting mud of the scheme is 60 parts of silicate supporting mud clinker, 21 parts of carbide slag, 21 parts of gypsum, 8 parts of fine sand, 7 parts of slag, 18 parts of ash and 13 parts of manganese slag.
Example 4
The support mud of the scheme is 60 parts of silicate support mud clinker, 21 parts of carbide slag, 21 parts of gypsum, 8 parts of fine sand, 7 parts of slag, 18 parts of ash slag, 13 parts of manganese slag and 5 parts of modifying agent, wherein the modifying agent comprises the following components in parts by weight:
1 part of potassium hydroxide, 30 parts of sodium carbonate, 15 parts of sodium aluminate, 7 parts of citric acid, 20 parts of fly ash and 27 parts of gangue.
Example 5
The support mud of the scheme is 60 parts of silicate support mud clinker, 21 parts of carbide slag, 21 parts of gypsum, 8 parts of fine sand, 7 parts of slag, 18 parts of ash slag, 13 parts of manganese slag and 10 parts of modifying agent, wherein the modifying agent comprises the following components in parts by weight:
10 parts of potassium hydroxide, 10 parts of potassium carbonate, 23 parts of sodium aluminate, 2 parts of citric acid, 35 parts of fly ash and 20 parts of gangue.
Example 6
The support mud of the scheme is 60 parts of silicate support mud clinker, 21 parts of carbide slag, 21 parts of gypsum, 8 parts of fine sand, 7 parts of slag, 18 parts of ash, 13 parts of manganese slag, 8 parts of modifying agent and 2 parts of reinforcing agent. The modifier comprises the following components in parts by weight: 5 parts of sodium hydroxide, 10 parts of potassium carbonate, 35 parts of potassium aluminate, 5 parts of citric acid, 25 parts of fly ash and 20 parts of gangue. The enhancer comprises the following components in parts by weight:
50 parts of fly ash, 9.5 parts of lauryl sodium sulfate, 10 parts of ethoxylated alkyl sodium sulfate, 6 parts of sodium carbonate, 10 parts of anhydrous sodium sulfate, 6.5 parts of sodium hydroxide, 3.5 parts of triethanolamine, 2 parts of aluminum hydroxide and 2.5 parts of ferric hydroxide.
Example 7
The support mud silicate support mud clinker comprises 60 parts of support mud silicate support mud clinker, 21 parts of carbide slag, 21 parts of gypsum, 8 parts of fine sand, 7 parts of slag, 18 parts of ash, 13 parts of manganese slag, 8 parts of modifying agent and 1 part of reinforcing agent. The modifier comprises the following components in parts by weight:
8 parts of potassium hydroxide, 40 parts of potassium aluminate, 10 parts of sodium carbonate, 2 parts of citric acid, 20 parts of fly ash and 20 parts of gangue.
The enhancer comprises the following components in parts by weight:
40 parts of fly ash, 7.5 parts of lauryl sodium sulfate, 8 parts of ethoxylated alkyl sodium sulfate, 5 parts of sodium carbonate, 8 parts of anhydrous sodium sulfate, 5 parts of sodium hydroxide, 3 parts of triethanolamine, 1.5 parts of aluminum hydroxide and 2 parts of ferric hydroxide.
Example 8
The support mud of the scheme is 60 parts of silicate support mud clinker, 21 parts of carbide slag, 21 parts of gypsum, 8 parts of fine sand, 7 parts of slag, 18 parts of ash slag, 13 parts of manganese slag, 6 parts of modifying agent and 1 part of reinforcing agent, wherein the modifying agent comprises the following components in parts by weight:
10 parts of sodium hydroxide, 13 parts of potassium carbonate, 15 parts of potassium aluminate, 7 parts of citric acid, 20 parts of fly ash and 35 parts of gangue.
The enhancer comprises the following components in parts by weight:
40 parts of fly ash, 7.5 parts of lauryl sodium sulfate, 8 parts of ethoxylated alkyl sodium sulfate, 5 parts of sodium carbonate, 8 parts of anhydrous sodium sulfate, 5 parts of sodium hydroxide, 3 parts of triethanolamine, 1.5 parts of aluminum hydroxide and 2 parts of ferric hydroxide.
When raw materials are mixed in the production process, the water consumption can be reduced by 5% -10%, the strength of the scheme can reach 100% in 5-6 days, and the strength of the scheme exceeds 120% in 24-26 days.
The following table is a comparison table of initial setting and final setting time:
Claims (8)
1. the support mud for the shield machine with good durability is characterized by comprising the following components in parts by weight: 55-85 parts of silicate supporting mud clinker, 12-32 parts of carbide slag, 12-32 parts of gypsum, 6-16 parts of fine sand, 5-10 parts of slag, 11-31 parts of ash, 12-15 parts of manganese slag and 5-10 parts of modifying agent, wherein the modifying agent comprises the following components in parts by weight: 2-11 parts of alkali metal hydroxide, 12-32 parts of soluble carbonate, 17-42 parts of aluminate, 2-7 parts of citric acid, 22-37 parts of fly ash, 20-35 parts of gangue and 1-2 parts of a reinforcing agent, wherein the reinforcing agent comprises the following components in parts by weight: 44-64 parts of fly ash, 6.5-10.5 parts of sodium dodecyl sulfate, 8-12 parts of ethoxylated alkyl sodium sulfate, 5-7.5 parts of sodium carbonate, 8-12 parts of anhydrous sodium sulfate, 5-8 parts of sodium hydroxide, 3-4.5 parts of triethanolamine, 1.5-2.5 parts of aluminum hydroxide and 2-4 parts of ferric hydroxide.
2. The supporting mud as claimed in claim 1, wherein the modifier comprises the following components in parts by weight: 1 part of potassium hydroxide, 30 parts of sodium carbonate, 15 parts of sodium aluminate, 7 parts of citric acid, 20 parts of fly ash and 27 parts of gangue.
3. The supporting mud of claim 1, wherein the supporting mud further comprises 10 parts of an improver, and the improver comprises the following components in parts by weight: 10 parts of potassium hydroxide, 10 parts of potassium carbonate, 23 parts of sodium aluminate, 2 parts of citric acid, 35 parts of fly ash and 20 parts of gangue.
4. The supporting mud of claim 1, further comprising 8 parts by weight of an improver, wherein the improver comprises the following components in parts by weight: 5 parts of sodium hydroxide, 10 parts of potassium carbonate, 35 parts of potassium aluminate, 5 parts of citric acid, 25 parts of fly ash and 20 parts of gangue.
5. The support mud of claim 1, wherein the reinforcing agent comprises the following components in parts by weight: 40 parts of fly ash, 7.5 parts of lauryl sodium sulfate, 8 parts of ethoxylated alkyl sodium sulfate, 5 parts of sodium carbonate, 8 parts of anhydrous sodium sulfate, 5 parts of sodium hydroxide, 3 parts of triethanolamine, 1.5 parts of aluminum hydroxide and 2 parts of ferric hydroxide.
6. The support mud of claim 1, wherein the reinforcing agent comprises the following components in parts by weight: 60 parts of fly ash, 11.5 parts of lauryl sodium sulfate, 12 parts of ethoxylated alkyl sodium sulfate, 7.5 parts of sodium carbonate, 12 parts of anhydrous sodium sulfate, 8 parts of sodium hydroxide, 4.5 parts of triethanolamine, 2.5 parts of aluminum hydroxide and 4 parts of ferric hydroxide.
7. The support mud of claim 1, wherein the reinforcing agent comprises the following components in parts by weight: 50 parts of fly ash, 9.5 parts of lauryl sodium sulfate, 10 parts of ethoxylated alkyl sodium sulfate, 6 parts of sodium carbonate, 10 parts of anhydrous sodium sulfate, 6.5 parts of sodium hydroxide, 3.5 parts of triethanolamine, 2 parts of aluminum hydroxide and 2.5 parts of ferric hydroxide.
8. The support mud of claim 1, wherein the fortifier is prepared by the following process: grinding all solid materials to be less than 0.09mm, feeding the solid materials and the residual liquid materials into a mixer together, uniformly stirring, feeding the mixture into drying equipment, and heating to 35-85 ℃ for drying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110295445.7A CN113072349A (en) | 2021-03-19 | 2021-03-19 | Good-durability support mud for shield machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110295445.7A CN113072349A (en) | 2021-03-19 | 2021-03-19 | Good-durability support mud for shield machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113072349A true CN113072349A (en) | 2021-07-06 |
Family
ID=76613481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110295445.7A Pending CN113072349A (en) | 2021-03-19 | 2021-03-19 | Good-durability support mud for shield machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113072349A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1919771A (en) * | 2006-08-18 | 2007-02-28 | 查银贵 | Intensifier for cement masonry product |
| CN1962524A (en) * | 2006-11-24 | 2007-05-16 | 张洪伟 | Cement calcine-free quick coagulator and its production process |
| CN107021653A (en) * | 2017-04-19 | 2017-08-08 | 平湖南方水泥有限公司 | A kind of cement formula |
-
2021
- 2021-03-19 CN CN202110295445.7A patent/CN113072349A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1919771A (en) * | 2006-08-18 | 2007-02-28 | 查银贵 | Intensifier for cement masonry product |
| CN1962524A (en) * | 2006-11-24 | 2007-05-16 | 张洪伟 | Cement calcine-free quick coagulator and its production process |
| CN107021653A (en) * | 2017-04-19 | 2017-08-08 | 平湖南方水泥有限公司 | A kind of cement formula |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110526628B (en) | Preparation method of high-doping-amount wet-grinding phosphorus-solid waste super-retarding cementing material | |
| KR100880930B1 (en) | Cement composition for rapid hardening | |
| CN110615627B (en) | Early-strength low-heat cement for railway engineering and preparation method thereof | |
| CN109912243B (en) | Cement produced by utilizing industrial solid wastes | |
| JP4837161B2 (en) | Cement quick setting agent, cement composition, and spray material using the same | |
| CA1061808A (en) | Process for producing low porosity cement | |
| CN106082812A (en) | A kind of anti-crack concrete | |
| CN108191273A (en) | A kind of preparation method of ferrous aluminate cement clinker | |
| CN108249849B (en) | High-limestone-powder-mixing-amount green concrete | |
| CN110330304B (en) | High-water-content rapid-setting gob-side entry retaining material and preparation and use methods thereof | |
| JP3162758B2 (en) | Cement composition and quick-setting method | |
| CN108147687A (en) | A kind of preparation method of sulphate aluminium cement | |
| CN112209692A (en) | Phosphogypsum anti-cracking plastering mortar and preparation method thereof | |
| CN113072349A (en) | Good-durability support mud for shield machine | |
| CN111689702B (en) | Early-strength sulfate-resistant cement | |
| JP3199454B2 (en) | Cement admixture and cement composition | |
| CN110981257B (en) | Alkali-free and chlorine-free concrete accelerator based on magnesium carbonate trihydrate | |
| CN113185172A (en) | Bi-component accelerator, wet-spraying concrete and preparation method thereof | |
| JP2003081664A (en) | Quick setting agent, quick setting agent slurry, spraying material, and spraying method using the same | |
| CN108164167A (en) | A kind of preparation method of portland cement | |
| CN113121179A (en) | High-fluidity quick-setting filling cementing material under low-temperature condition | |
| CN111377673A (en) | Corrosion-resistant concrete material and preparation method thereof | |
| JP3124578B2 (en) | Cement admixture and cement composition | |
| CN108147686A (en) | A kind of preparation method of sulphoaluminate cement clinker | |
| JP4832659B2 (en) | Construction method of quick setting cement concrete |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210706 |