CN108218346A - A kind of grouting material and preparation method thereof - Google Patents
A kind of grouting material and preparation method thereof Download PDFInfo
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- CN108218346A CN108218346A CN201810085164.7A CN201810085164A CN108218346A CN 108218346 A CN108218346 A CN 108218346A CN 201810085164 A CN201810085164 A CN 201810085164A CN 108218346 A CN108218346 A CN 108218346A
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- grouting material
- grouting
- mud jacking
- cement
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Classifications
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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
- 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
-
- 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
- C04B2201/52—High compression strength concretes, i.e. with a compression strength higher than about 55 N/mm2, e.g. reactive powder concrete [RPC]
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- 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
A kind of grouting material and preparation method thereof is related to a kind of additive of concrete, the filling for the stress beam pipeline that rises after particularly applying to, the anchor grouting of earth anchor system, the grouting of Equipment Foundations, a kind of grouting material in the fields such as concrete object pore grout and its preparation.Grouting agent product prepared by the present invention not only has the principal advantages of common grouting material but also does not contain villaumite in prepared grouting material, effectively concrete can be inhibited not to be corroded.The grouting material that the present invention designs mainly adds the auxiliary addition agents such as swelling agent, antifoaming agent, water-reducing agent, early strength agent as base-material using 525 type cement and is uniformly mixed using high-speed slurrying testing machine slurrying use.Being free of by grouting agent prepared by the present invention has corrosive chlorion, has micro-expansibility, the early strength of concrete is reinforced and the later strength of concrete will not be affected.This grouting material has many advantages, such as that intensity height, good fluidity, preparation process are simple.
Description
Technical field
The present invention relates to a kind of additive of concrete, the filling for the stress beam pipeline that rises after particularly applying to, earth anchor systems
A kind of grouting material in the fields such as the anchor grouting of system, the grouting of Equipment Foundations, concrete object pore grout and its preparation.
Background technology
Grouting material is mainly used in the post-stressed bridge duct mud jacking of different kinds of railways, highway, all kinds of earth anchor systems with
And the grouting of Equipment Foundations.The use of grouting material can be very good to solve it is certain can not manually be operated, can not be to concrete
The engineering shaken.Grouting material has excellent mobility, can voluntarily be filled that fullness degree is good, and grouting material makes
With the slurry of concrete is also made to stablize ungauged regions, this will not cause concrete strength and usability loss of energy.Therefore, for
The engineering constructed in special circumstances is very big for the use of grouting material and the space of demand.
China Patent Publication No. CN105000847A discloses a kind of post-stressed hole path pressure grouting material of corrosion-prevention rust-resistance type
And preparation method thereof.The preparation for the grouting material that the invention patent is related to mainly include cement, preservative, coagulant, water-reducing agent,
The material compositions such as miberal powder, the similary good flowing properties of this grouting material do not corrode Reinforced Concrete Materials etc., but in practical utilization
In its be more suitable for northwest or coastal area, this grouting material has a good practical performance, but during practical utilization
Requirement to environment and temperature is more stringent.
China Patent Publication No. CN104876496A disclose a kind of novel bridge back-tension prestressed channel mudjacking material and its
Preparation method.The preparation of the grouting material of this patent disclosure is mainly synthesized by substances such as clinker, miberal powder, grouting agents.It should
The preparation process of grouting material is simple, will not generate laitance during use, but need carry out two in the actual use process
Secondary to mend slurry, grouting material prepared by the invention is relatively narrow using field that is cumbersome and using in the actual use process.
Goal of the invention
The defects of purpose of the present invention is intended to overcome the prior art, it is extensive to provide a kind of operation strategies, prepares and operating procedure
Simply, and mobility is strong, and slurry is stablized, the high novel grouting material of concrete strength.The invention further relates to the systems of this grouting material
Preparation Method.
Grouting material of the present invention, the component of preparation is cement, micro- silicon ash, flyash, aluminium calcium sulfate, higher alcohols fat
Sour compound, sodium sulphate, polycarboxylic acids, polyacrylic acid sodium salt, aluminium powder, ammonium persulfate, which is characterized in that the parts by weight of its component
For：550-650 parts of cement, micro- silicic acid 8-12 parts, 2-4 parts of flyash, 1-2 parts of aluminium calcium sulfate, higher alcohols fat compound 0.2-
0.4 part, 0.4-0.6 parts of sodium sulphate, 1-2 parts of polycarboxylic acids, 0.2-0.4 parts of polyacrylic acid sodium salt, 0.4-0.6 parts of ammonium persulfate and aluminium
0.05 part of powder.
The grouting material, the component of parts by weight are：525 600 parts of cement, micro- 10 parts of silicic acid, 3 parts of flyash, sulfuric acid
1.5 parts of aluminium calcium, 0.3 part of higher alcohols fatty acid complexes, 0.5 part of sodium sulphate, 1.5 parts of polycarboxylic acids, 0.3 part of polyacrylic acid sodium salt,
0.05 part of aluminium powder, 0.5 part of ammonium persulfate.
The cement is 525 portland cements.
The grouting material, the preparation method of this grouting material, preparation process are：
A, it is compound that 525 cement, SILICA FUME, flyash, aluminium calcium sulfate, higher alcohols aliphatic acid are separately added into pulvis reaction kettle
Object, sodium sulphate, polycarboxylic acids, polyacrylic acid sodium salt, aluminium powder；
B, pulvis blender is opened and stirred, the rotating speed of 10 minutes is 30 rpms before control；
C, after all powder mixtures stir evenly substantially, then the mixing speed of blender is adjusted, mixing speed is adjusted to
40 rpms, and continue stirring 30 minutes；
D, grouting material is moved in material storage kettle after all raw materials stir evenly and stored for future use.
A kind of grouting material, application method are：
Ith, the design of water-cement ratio finds the grouting material of the present invention according to the requirement of the standard of grouting material and repeatedly repetition test comparison
Each performance such as intensity and mobile performance of the ratio of mud when being designed as 0.26 it is best.Therefore it sets in the actual use process
The grouting material that 260 parts of water of addition are counted with 740 parts is used cooperatively；
IIth, it stirs：1. 250 parts of water is firstly added in blender and starts blender.2. uniformly add in 740 parts of mud jacking
Material, stirring add in water 10 parts remaining, then be stirred 2 minutes after 3-5 minutes.3. starting the stirring motor of storage tank, open
The slurry being stirred is discharged into storage tank by the valve of blender；
IIIth, mud jacking：1. the outlet of the inlet pipe of pneumatic mortar machine and slurry can is attached.2. starting pneumatic mortar machine, and exclude mud jacking
Remaining air and moisture in machine.3. adjusting the rotating speed of pneumatic mortar machine, the rotating speed for controlling pneumatic mortar machine is 1100 rpms.It 4. will pressure
The grout outlet of pulp grinder proceeds by mud jacking after being connect with the pipeline of required mud jacking.5. it should be noted that slowly uniform progress during mud jacking,
Mud jacking should disposably be carried out to prevent that mud jacking is repeated.
IVth, after mud jacking, the detection work of physical property is carried out to the part of carried out mud jacking.Physical property reaches finger
Terminate mud jacking after mark requirement and carry out later stage maintenance.
Grouting material of the present invention, the specific features of added component are as follows：
1st, 525 cement：Cement is inorganic gel materials, and the intensity after hardening of cement is high, and to the various materials of inside concrete
Material does not cause to corrode, and compares with other various types of cement, the intensity of grouting material that the cement of 525 types is prepared
With anti-folding than it is funny than other kinds of cement than it is good, therefore 525 type cement are selected in the preparation of the grouting material of this formula.
2nd, SILICA FUME：SILICA FUME is added in grouting material can make the intergranular hole of the effective filling concrete of grouting material,
SILICA FUME also generates gelinite with the hydrated product of cement simultaneously, and the formation of gelinite can be such that grouting material is rapidly filled out
It fills.In addition to this, SILICA FUME also has the advantages of other several additives are incomparable：1. SILICA FUME is unformed spherical
Grain, and its mean particle size is small, also has good filling effect while the mobile performance for improving concrete, it can
Rapid filling concrete void among particles are so as to improve the intensity of cement and durability.2. SILICA FUME also has good water conservation
Property, it can effectively prevent isolation bleeding and significantly reduce the resistance of concrete pumping.3. micro- silicon ash is used in grouting material can also
The use intensity of enough significant pressure-proof and snap-resistents for improving concrete, early strength and 28d are all relatively strong.
3rd, flyash：The calcium oxide of active silica, active alundum (Al2O3) and free property contained in flyash is all
It is the extremely strong component of activity, the addition of flyash is conducive to the formation of colloid in cement so as to the gap in filling concrete.And powder
Coal ash also has the later strength of cement concrete very strong enhancing effect.
4th, aluminium calcium sulfate：Aluminium calcium sulfate is added in grouting material and mainly plays the role of swelling agent, aluminium calcium sulfate can
The effective contraction for reducing concrete is dry and cracked, improves the cracking resistance of concrete.And the addition of aluminium calcium sulfate can be improved and be connect
The caking property of contacting surface is so as to strengthen filling effect of the grouting material for hole in concrete system.
5th, aluminium powder：It is also to play the role of bulking promoter that aluminium powder is added in grouting material, and aluminium powder has microdilatancy,
Aluminium can have an effect a small amount of bubble of generation so as to achieve the effect that microdilatancy with the calcium hydroxide in cement, this expansion effect
Be conducive to grouting material and effect is rapidly filled to micropore.
6th, higher alcohols fatty acid complexes：Higher alcohols fatty acid complexes have certain defoaming effect, as defoaming
Auxiliary agent, which is added in grouting material system, can effectively control the generation of foam so as to mitigate the loss of the early strength of concrete.
7th, sodium sulphate：Sodium sulphate has certain early strong effect, and can react life with the calcium hydroxide in cement
The loss of strength caused by make up concrete when adding additive that enhances the early strength of concrete into entringite.
8th, polycarboxylic acids：Polycarboxylic acids is pulvis.Polycarboxylic acids has good water-reducing property, adds during the use of grouting material
Entering certain polycarboxylic acids with water-reducing property being capable of grouting material that effectively prepared by the diminishing present invention water during use
In addition to this use of amount, is added to the grouting material with water-reducing property and also is able to effectively reduce concrete when in use
Bleeding, so as to ensure that the early strength of concrete is without damage.
9th, polyacrylic acid sodium salt：Polyacrylic acid sodium salt is good dispersant, since grouting material is the coagulation that belongs to pulvis
The additive of soil, although can ensure that the cost that convenient transportation transports during transport is relatively low, in making for its reality
With similarly there are problems that being difficult to be uniformly mixed, therefore add during grouting material is prepared in the present invention in the process
As dispersant, the addition of dispersant is mutually mixed Sodium Polyacrylate between being effectively promoted each component of grouting material,
Accelerate effect of the grouting material among concrete.
10th, ammonium persulfate：Ammonium persulfate is good exciting agent, and during the use of grouting material, ammonium persulfate adds
The activity of the minerals such as SILICA FUME in grouting material, flyash can effectively be excited by entering, and be shortened so as to accelerate the effect of grouting material
The time of reaction, and the addition of ammonium persulfate also be able to it is mixed so as to enhance with one same-action of minerals such as SILICA FUME and flyash
Coagulate the workability and intensity of soil.525 type cement are used as the base-material of reaction and add swelling agent, stabilizer, water-reducing agent, exciting agent
Auxiliary agents participation is waited to be stirred to obtain this grouting material.
Grouting agent product prepared by the present invention not only has the principal advantages of common grouting material but also in prepared mud jacking
Villaumite is not contained in material, effectively concrete can be inhibited not to be corroded.The grouting material that the present invention designs is mainly with 525 type water
Mud adds the auxiliary addition agents such as swelling agent, antifoaming agent, water-reducing agent, early strength agent and is uniformly mixed and tested using high-speed slurrying for base-material
Mechanism slurry uses.Being free of by grouting agent prepared by the present invention has corrosive chlorion, there is micro-expansibility, the early stage of concrete
Intensity is reinforced and the later strength of concrete will not be affected.This grouting material has intensity height, good fluidity, prepares work
The advantages that skill is simple.
And the detection of physical property carried out during the preparation use of grouting material prepared for the present invention is as follows
Shown in table：
The property indices of grouting material prepared by the present invention can be seen that for the result detected and be satisfied by practical property
Can requirement, and have the grouting material for preparing of the present invention produce prepare during production cost simple for process it is low.
Specific embodiment
With reference to embodiment, the present invention will be further described, but not limited to the examples.
Embodiment 1
A kind of grouting material, the component of preparation is 525 cement, micro- silicon ash, flyash, aluminium calcium sulfate, higher alcohols fatty acid complexes,
Sodium sulphate, polycarboxylic acids, polyacrylic acid sodium salt, aluminium powder, ammonium persulfate, which is characterized in that the parts by weight of its component are：525 cement
550 parts, micro- 8 parts of silicic acid, 2 parts of flyash, 1 part of aluminium calcium sulfate, 0.2 part of higher alcohols fat compound, 0.4 part of sodium sulphate, poly- carboxylic
0.05 part of 1 part of acid, 0.2 part of polyacrylic acid sodium salt, 0.4 part of ammonium persulfate and aluminium powder.
Embodiment 2
A kind of grouting material, the component of preparation is 525 cement, micro- silicon ash, flyash, aluminium calcium sulfate, higher alcohols fatty acid complexes,
Sodium sulphate, polycarboxylic acids, polyacrylic acid sodium salt, aluminium powder, ammonium persulfate, which is characterized in that the parts by weight of its component are：525 cement
650 parts, micro- 12 parts of silicic acid, 4 parts of flyash, 2 parts of aluminium calcium sulfate, 0.4 part of higher alcohols fat compound, 0.6 part of sodium sulphate, poly- carboxylic
0.05 part of 2 parts of acid, 0.4 part of polyacrylic acid sodium salt, 0.6 part of ammonium persulfate and aluminium powder.
Embodiment 3
Grouting material of the present invention, which is characterized in that 600 parts of 525 cement, micro- 10 parts of silicic acid, 3 parts of flyash, sulphur
Sour 1.5 parts of aluminium calcium, 0.3 part of higher alcohols fatty acid complexes, 0.5 part of sodium sulphate, 1.5 parts of polycarboxylic acids, polyacrylic acid sodium salt 0.3
Part, 0.05 part of aluminium powder, 0.5 part of ammonium persulfate.
Embodiment 4
The preparation method of grouting material of the present invention, the preparation method of this grouting material, preparation process are：
A, it is compound that 525 cement, SILICA FUME, flyash, aluminium calcium sulfate, higher alcohols aliphatic acid are separately added into pulvis reaction kettle
Object, sodium sulphate, polycarboxylic acids, polyacrylic acid sodium salt, aluminium powder；
B, pulvis blender is opened and stirred, the rotating speed of 10 minutes is 30 rpms before control；
C, after all powder mixtures stir evenly substantially, then the mixing speed of blender is adjusted, mixing speed is adjusted to
40 rpms, and continue stirring 30 minutes；
D, grouting material is moved in material storage kettle after all raw materials stir evenly and stored for future use.
A kind of grouting material, which is characterized in that the application method is：
Ith, the design of water-cement ratio finds the grouting material of the present invention according to the requirement of the standard of grouting material and repeatedly repetition test comparison
Each performance such as intensity and mobile performance of the ratio of mud when being designed as 0.26 it is best.Therefore it sets in the actual use process
The grouting material that 260 parts of water of addition are counted with 740 parts is used cooperatively；
IIth, it stirs：1. 250 parts of water is firstly added in blender and starts blender.2. uniformly add in 740 parts of mud jacking
Material, stirring add in water 10 parts remaining, then be stirred 2 minutes after 3-5 minutes.3. starting the stirring motor of storage tank, open
The slurry being stirred is discharged into storage tank by the valve of blender；
IIIth, mud jacking：1. the outlet of the inlet pipe of pneumatic mortar machine and slurry can is attached.2. starting pneumatic mortar machine, and exclude mud jacking
Remaining air and moisture in machine.3. adjusting the rotating speed of pneumatic mortar machine, the rotating speed for controlling pneumatic mortar machine is 1100 rpms.It 4. will pressure
The grout outlet of pulp grinder proceeds by mud jacking after being connect with the pipeline of required mud jacking.5. it should be noted that slowly uniform progress during mud jacking,
Mud jacking should disposably be carried out to prevent that mud jacking is repeated.
IVth, after mud jacking, the detection work of physical property is carried out to the part of carried out mud jacking.Physical property reaches finger
Terminate mud jacking after mark requirement and carry out later stage maintenance.
Claims (5)
1. a kind of grouting material, the component of preparation is cement, micro- silicon ash, flyash, aluminium calcium sulfate, higher alcohols fatty acid complexes,
Sodium sulphate, polycarboxylic acids, polyacrylic acid sodium salt, aluminium powder, ammonium persulfate, which is characterized in that the parts by weight of its component are：Cement 550-
650 parts, micro- silicic acid 8-12 parts, 2-4 parts of flyash, 1-2 parts of aluminium calcium sulfate, 0.2-0.4 parts of higher alcohols fat compound, sodium sulphate
0.4-0.6 parts, 1-2 parts of polycarboxylic acids, 0.2-0.4 parts of polyacrylic acid sodium salt, 0.05 part of 0.4-0.6 parts of ammonium persulfate and aluminium powder.
2. grouting material according to claim 1, which is characterized in that 600 parts of 525 cement, micro- 10 parts of silicic acid, fine coal
3 parts of ash, 1.5 parts of aluminium calcium sulfate, 0.3 part of higher alcohols fatty acid complexes, 0.5 part of sodium sulphate, 1.5 parts of polycarboxylic acids, polyacrylic acid
0.3 part of sodium salt, 0.05 part of aluminium powder, 0.5 part of ammonium persulfate.
3. grouting material according to claim 1, which is characterized in that the cement is 525 portland cements.
4. grouting material according to claim 1, which is characterized in that the preparation method of this grouting material, preparation process are：
A, it is compound that 525 cement, SILICA FUME, flyash, aluminium calcium sulfate, higher alcohols aliphatic acid are separately added into pulvis reaction kettle
Object, sodium sulphate, polycarboxylic acids, polyacrylic acid sodium salt, aluminium powder；
B, pulvis blender is opened and stirred, the rotating speed of 10 minutes is 30 rpms before control；
C, after all powder mixtures stir evenly substantially, then the mixing speed of blender is adjusted, mixing speed is adjusted to
40 rpms, and continue stirring 30 minutes；
D, grouting material is moved in material storage kettle after all raw materials stir evenly and stored for future use.
5. a kind of grouting material according to claim 4, which is characterized in that the application method is：
Ith, the design of water-cement ratio finds the grouting material of the present invention according to the requirement of the standard of grouting material and repeatedly repetition test comparison
Each performance such as intensity and mobile performance of the ratio of mud when being designed as 0.26 it is best；
Therefore the grouting material for designing 260 parts of water of addition in the actual use process with 740 parts is used cooperatively；
IIth, it stirs：1. 250 parts of water is firstly added in blender and starts blender；
2. uniformly adding in 740 parts of grouting material, stirring adds in water 10 parts remaining, then be stirred 2 minutes after 3-5 minutes；
3. starting the stirring motor of storage tank, the valve of blender is opened, the slurry being stirred is discharged into storage tank；
IIIth, mud jacking：1. the outlet of the inlet pipe of pneumatic mortar machine and slurry can is attached；
2. starting pneumatic mortar machine, and exclude remaining air and moisture in pneumatic mortar machine；
3. adjusting the rotating speed of pneumatic mortar machine, the rotating speed for controlling pneumatic mortar machine is 1100 rpms；
4. proceed by mud jacking after the grout outlet of pneumatic mortar machine is connect with the pipeline of required mud jacking；
5. should be noted that slowly uniform progress during mud jacking, it should disposably carry out mud jacking and prevent that mud jacking is repeated；
IVth, after mud jacking, the detection work of physical property is carried out to the part of carried out mud jacking；
Physical property, which touches the mark, to be terminated mud jacking after requirement and carries out later stage maintenance.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810085164.7A CN108218346A (en) | 2018-01-29 | 2018-01-29 | A kind of grouting material and preparation method thereof |
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| CN201810085164.7A CN108218346A (en) | 2018-01-29 | 2018-01-29 | A kind of grouting material and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112456838A (en) * | 2019-09-09 | 2021-03-09 | 罗定市宏泰建材有限公司 | Composite admixture for concrete and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103073217A (en) * | 2013-01-07 | 2013-05-01 | 乌鲁木齐市建宝天化新材料科技有限公司 | Special porelike grouting agent for bridge concrete |
| CN103570307A (en) * | 2012-07-25 | 2014-02-12 | 陕西通宇新材料有限公司 | Anticorrosion rust-proof pre-stressed duct grouting material |
| CN106986609A (en) * | 2017-04-25 | 2017-07-28 | 浙江华鼎市政建设有限公司 | Bridge inherent stress mud-jacking and its construction technology |
-
2018
- 2018-01-29 CN CN201810085164.7A patent/CN108218346A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103570307A (en) * | 2012-07-25 | 2014-02-12 | 陕西通宇新材料有限公司 | Anticorrosion rust-proof pre-stressed duct grouting material |
| CN103073217A (en) * | 2013-01-07 | 2013-05-01 | 乌鲁木齐市建宝天化新材料科技有限公司 | Special porelike grouting agent for bridge concrete |
| CN106986609A (en) * | 2017-04-25 | 2017-07-28 | 浙江华鼎市政建设有限公司 | Bridge inherent stress mud-jacking and its construction technology |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112456838A (en) * | 2019-09-09 | 2021-03-09 | 罗定市宏泰建材有限公司 | Composite admixture for concrete and preparation method thereof |
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Application publication date: 20180629 |