CN110304855A - A kind of bridge duct grouting agent or grouting material - Google Patents
A kind of bridge duct grouting agent or grouting material Download PDFInfo
- Publication number
- CN110304855A CN110304855A CN201910591821.XA CN201910591821A CN110304855A CN 110304855 A CN110304855 A CN 110304855A CN 201910591821 A CN201910591821 A CN 201910591821A CN 110304855 A CN110304855 A CN 110304855A
- Authority
- CN
- China
- Prior art keywords
- agent
- parts
- carbon fiber
- grouting
- bridge duct
- 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.)
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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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
-
- 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
Abstract
The present invention provides a kind of bridge duct grouting agent, including following component and parts by weight: 5 ~ 15 parts of gas tracting subtractive agent；15 ~ 30 parts of ordinary water-reducing agent；50 ~ 75 parts of filament expansion agent；2 ~ 4 parts of polyester ethers defoaming agent；0.2 ~ 0.6 part of carbon fiber；Polypropylene fibre or 0.5 ~ 0.7 part of modified acrylic fibre；With a kind of bridge duct grouting material, grouting agent 10% as described above mixes cement consumption 90%, is configured to grouting material.Add a small amount of carbon fiber tensile strength of people, bending strength enhancing；Gas tracting subtractive agent has bleed, diminishing, humidification, improves concrete permeability resistance, freeze-thaw resistance and durability；The redispersible high molecular polymer of filament expansion agent plays the role of bonding hydrophobic；Polyester ethers defoaming agent high temperature resistant, be easily dispersed, surface tension is low, stability is good, lipophilic increase, hydrophily reduce, defoaming capacity enhancing.
Description
Technical field
The invention belongs to building material technical fields, especially grouting agent technology of preparing, and in particular to a kind of bridge duct
Grouting agent or grouting material.
Background technique
The steel strand wires of pre-stressed bridge will give full play to design effect, offset vehicle and pedestrian to the pressure of bridge floor, answer in advance
The grouting quality effect of hydraulic piping is one of most important factor.Presstressed reinforcing steel forms entirety by mortar and surrounding concrete, increases
The reliability for adding anchoring improves the crack resistance and bearing capacity of structure.The cement slurry for pouring into duct not only wraps up presstressed reinforcing steel, but also
Cell walls are contacted, presstressed reinforcing steel and cell walls bonding are got up, collective effect.Durability of its mud jacking density quality to bridge
With great influence, according to statistics, since mud jacking leakiness causes steel strand wires in prestress pipe to corrode, prestressing force is lost in advance,
Bridge actual life can be caused to foreshorten to 1/10th of projected life.
Premixing grouting material is that factory passes through experimental design in advance, is then made into uniform powder in factory, is packaged into bag,
Construction site illustratively adds water and stirs into slurry, and Grouting Technology can preferably protect prestress wire not exposed and be corroded,
It is well combined prestress wire with concrete, guarantees prestressed reinforced concrete construction safety.For bridge structure hole path pressure grouting
The characteristics of, grouting agent (material) need to have microdilatancy, ungauged regions, big flowing, self-compaction, extremely low bleeding rate, fullness degree height, air bag foam
The thin diameter of layer is small, intensity is high, antirust resistance rust, low alkali out of chloride, bond degree height, and pipeline pneumatic mortar material is by water-reducing agent, swelling agent, prevents
Heavy agent, defoaming agent, retarder, corrosion inhibitor, mineral admixture etc. are formulated.
Studies have shown that press mortar used below often occurs that bleeding is serious, cannot normally harden and strength reduction at 5 DEG C
Etc. disadvantages or even slurries frost heave cause beam body to generate growth crackle along bellows direction, immeasurable safety certainly will be brought
Hidden danger and economic loss.
Summary of the invention
Aiming at the problem that background technique proposes, it is an object of the present invention to provide a kind of bridge duct grouting agent or grouting material,
It is able to maintain good performance.
To achieve the above object, the present invention adopts the following technical scheme:
A kind of bridge duct grouting agent, including following component and parts by weight:
5 ~ 15 parts of gas tracting subtractive agent；
15 ~ 30 parts of ordinary water-reducing agent；
50 ~ 75 parts of filament expansion agent；
2 ~ 4 parts of polyester ethers defoaming agent；
0.2 ~ 0.6 part of carbon fiber；
Polypropylene fibre or 0.5 ~ 0.7 part of modified acrylic fibre.
Further, a kind of bridge duct grouting agent, also comprises the following components and parts by weight:
5 ~ 10 parts of antifreezing agent.
Further, a kind of bridge duct grouting agent, including following component and parts by weight:
8 parts of gas tracting subtractive agent；
20 parts of ordinary water-reducing agent；
60 parts of filament expansion agent；
3 parts of polyester ethers defoaming agent；
0.4 part of carbon fiber；
Polypropylene fibre or 0.6 part of modified acrylic fibre；
8 parts of antifreezing agent.
Further, a kind of bridge duct grouting agent, the carbon fiber use chopped carbon fiber.
Further, a kind of bridge duct grouting agent, the chopped carbon fiber are asphalt base carbon fiber.
Further, a kind of bridge duct grouting agent, the gas tracting subtractive agent and ordinary water-reducing agent are pulvis.
Further, a kind of bridge duct grouting agent, the swelling agent are MPC polymer fiber swelling agents.
Further, a kind of bridge duct grouting agent, the antifreezing agent are sodium nitrite, calcium chloride, calcium nitrite
With the mixing of one or more of urea.
Further, a kind of bridge duct grouting material is also provided, grouting agent 10% as described above is mixed cement consumption 90%, matched
Grouting material is made.
Further, the production method of a kind of bridge duct grouting agent, it is characterised in that: by gas tracting subtractive agent, general
Logical water-reducing agent, filament expansion agent, polyester ethers defoaming agent, carbon fiber, polypropylene fibre or modified acrylic fibre, antifreezing agent
It after weighing in parts by weight, is put into mortar mixer, low whipping speed is that 1000r/min is stirred mixing, obtains mixture
Enter in finished product packing tank afterwards, test package obtains a kind of bridge duct grouting agent.
Further, the production method of a kind of bridge duct grouting material, it is characterised in that: by gas tracting subtractive agent, general
Logical water-reducing agent, filament expansion agent, polyester ethers defoaming agent, carbon fiber, polypropylene fibre or modified acrylic fibre, antifreezing agent
It after weighing in parts by weight, is put into mortar mixer, low whipping speed is that 1000r/min is stirred mixing, is then mixed
90% cement is stirred in mortar mixer, is entered in finished product packing tank after obtaining mixture, test package obtains one kind
Bridge duct grouting material.
Inventive principle: if adding a small amount of carbon fiber of people in cement concrete, tensile strength can be significantly improved, bending strength
Also it is ramped with the increase of carbon fiber additional amount, chopped carbon fiber price is low, especially asphalt base carbon fiber, is easy to be built
Material market receives.Carbon fiber also has excellent acidproof, alkaline-resisting and weatherability characteristics, will not even with strong basicity cement
Corrode.In addition, carbon fiber has electromagnetic wave shielding and electric conductivity, it is the attached of functional architecture material and intelligent building material
Add characteristic, short carbon fiber, polyacrylonitrile fibre are added in novel concrete, high-performance fiber concrete new construction is made.
Gas tracting subtractive agent is the slow setting bleed high efficiency water reducing agent being formulated using a variety of surface-actives, has bleed, subtracts
Water, humidification, it will be apparent that reduce concrete surface tension, improve the workability of concrete, improve concrete mobility, can
Plasticity and flexural strength reduce bleeding and isolation, improve concrete permeability resistance, freeze-thaw resistance and durability etc., gas tracting subtractive agent
Being added in concrete can produce uniform and stable and survivable minute bubbles, is suitable for harbour, harbour, hydraulic engineering, resists
The requirements such as freeze thawing, anti-corrosion, seepage control project have the concrete of certain air content.
Filament expansion agent random distribution in concrete forms space network, and expansion component compensation is shunk, can be divided again
High molecular polymer is dissipated, plays the role of bonding hydrophobic.MPC polymer fiber swelling agent is the domestic multi-functional crack resistance type of a new generation
Polymer fiber swelling agent, it is the polypropylene fibre of ternary expansion component and high intensity with redispersible high molecular polymer,
It is compounded through science, has the function of early strong, expansion, compensates contraction and improve concrete anticracking and is impervious.Due to polymer fibre
Monfil in dimension swelling agent is distributed in inside concrete with uniform amount biggish in unit volume, therefore microcrack is developing
During necessarily suffer from the blocking of fiber, consume most of energy, tetra- kinds of components of CaO-MgO-Al2O3-SO3 form three
The speed of a different expansion sources, their aquations simultaneously is different, during concrete formation, it is established that early stage, mid-term, after
Phase different microdilatancy power, resists the convergent force of concrete different times in forming process, so crack is difficult to further send out
Exhibition, to block the development in crack, has the function that cracking resistance.
Polyester ethers defoaming agent is that the modified of polyethers defoaming agent both saves polyethers after the esterification of polyether antifoam agent
Defoaming agent high temperature resistant is easily dispersed, the advantages that surface tension is low, stability is good, and because of hydrone and polyoxyethylene chain after esterification
Between hydrogen bond be weakened so that its lipophilicity increases, hydrophily further decreased, and advantageously reduces surface tension, makes its activity
It gets higher, defoaming capacity enhancing.
The advantages of the present invention are: this grouting agent is mainly used for bridge, and grouting agent mixes the 10% of cement consumption,
It is configured to grouting material, can easily make satisfaction " highway bridge and culvert construction technique normalizing " (JTG/T F 50-2011) requirement
, qualified hole path pressure grouting mixed liquor, reduce the trouble of contractor's replacement cement, rationally using ground material, save transportation cost, drop
Low project cost.
Specific embodiment
The embodiment made of the present invention is described in detail below, in order to those skilled in the art understand that the present invention,
But the multitude of different ways that the present invention can be limited and be covered according to claim is implemented.
A kind of bridge duct grouting agent of embodiment 1, including following component and parts by weight: 8 parts of pulvis gas tracting subtractive agent；Powder
20 parts of agent ordinary water-reducing agent；60 parts of MPC polymer fiber swelling agent；3 parts of polyester ethers defoaming agent；Asphalt base carbon fiber carbon fiber
0.4 part；0.6 part of modified acrylic fibre；8 parts of sodium nitrite antifreezing agent.
By 8 parts of pulvis gas tracting subtractive agent；20 parts of pulvis ordinary water-reducing agent；60 parts of MPC polymer fiber swelling agent；Polyester ether
3 parts of class defoaming agent；0.4 part of asphalt base carbon fiber carbon fiber；0.6 part of modified acrylic fibre；8 parts of sodium nitrite antifreezing agent；
It after weighing in parts by weight, is put into mortar mixer, low whipping speed is that 1000r/min is stirred mixing, obtains a kind of bridge
Beam hole path pressure grouting agent mixture.
A kind of bridge duct grouting material of embodiment 2, including following component and parts by weight: 8 parts of pulvis gas tracting subtractive agent；Powder
20 parts of agent ordinary water-reducing agent；60 parts of MPC polymer fiber swelling agent；3 parts of polyester ethers defoaming agent；Asphalt base carbon fiber carbon fiber
0.4 part；0.6 part of modified acrylic fibre；8 parts of sodium nitrite antifreezing agent；900 parts of ordinary portland cement.
By 8 parts of pulvis gas tracting subtractive agent；20 parts of pulvis ordinary water-reducing agent；60 parts of MPC polymer fiber swelling agent；Polyester ether
3 parts of class defoaming agent；0.4 part of asphalt base carbon fiber carbon fiber；0.6 part of modified acrylic fibre；8 parts of sodium nitrite antifreezing agent；
It after weighing in parts by weight, is put into mortar mixer, low whipping speed is that 1000r/min is stirred mixing, is then mixed
900 parts of ordinary portland cement are stirred in mortar mixer, obtain a kind of bridge duct grouting material mixture.
A kind of bridge duct grouting agent of the invention and a kind of bridge duct grouting material add a small amount of carbon fiber of people to stretch strong
Degree, bending strength enhancing；Gas tracting subtractive agent have bleed, diminishing, humidification, improve concrete permeability resistance, freeze-thaw resistance and
Durability；The redispersible high molecular polymer of filament expansion agent plays the role of bonding hydrophobic；The resistance to height of polyester ethers defoaming agent
Temperature, be easily dispersed, surface tension is low, stability is good, lipophilic increase, hydrophily reduce, defoaming capacity enhancing；Antifreezing agent makes
Press mortar can be used at 5 DEG C or less.
The key technical indexes of the present invention:
As can be seen from the above table, under formula and preparation method of the invention, technical indicator of the invention be all satisfied national standard or
Professional standard.
Above embodiments are merely to illustrate a specific embodiment of the invention, rather than for limiting the present invention, the present invention
Range claimed is subject to described in claims.
Claims (10)
1. a kind of bridge duct grouting agent, which is characterized in that including following component and parts by weight:
5 ~ 15 parts of gas tracting subtractive agent；
15 ~ 30 parts of ordinary water-reducing agent；
50 ~ 75 parts of filament expansion agent；
2 ~ 4 parts of polyester ethers defoaming agent；
0.2 ~ 0.6 part of carbon fiber
Polypropylene fibre or 0.5 ~ 0.7 part of modified acrylic fibre.
2. a kind of bridge duct grouting agent according to claim 1, which is characterized in that also comprise the following components and parts by weight
Number:
5 ~ 10 parts of antifreezing agent.
3. a kind of bridge duct grouting agent according to claim 2, which is characterized in that including following component and parts by weight:
8 parts of gas tracting subtractive agent；
20 parts of ordinary water-reducing agent；
60 parts of filament expansion agent；
3 parts of polyester ethers defoaming agent；
0.4 part of carbon fiber；
Polypropylene fibre or 0.6 part of modified acrylic fibre；
8 parts of antifreezing agent.
4. any a kind of bridge duct grouting agent according to claim 1 ~ 3, which is characterized in that the carbon fiber is using chopped
Carbon fiber.
5. any a kind of bridge duct grouting agent according to claim 1 ~ 3, which is characterized in that the chopped carbon fiber is drip
Green base carbon fibre.
6. any a kind of bridge duct grouting agent according to claim 1 ~ 3, which is characterized in that the gas tracting subtractive agent and general
Logical water-reducing agent is pulvis.
7. any a kind of bridge duct grouting agent according to claim 1 ~ 3, which is characterized in that the filament expansion agent is
MPC polymer fiber swelling agent.
8. according to a kind of any bridge duct grouting agent of claim 2 ~ 3, which is characterized in that the antifreezing agent is nitrous acid
The mixing of one or more of sodium, calcium chloride, calcium nitrite and urea.
9. a kind of bridge duct grouting material, which is characterized in that the grouting agent 10% as described in claim 1 ~ 8 is any, water mixing mud are used
Amount 90%, is configured to grouting material.
10. a kind of production method of bridge duct grouting agent/material, which is characterized in that by gas tracting subtractive agent, ordinary water-reducing agent, fibre
Dimension swelling agent, polyester ethers defoaming agent, carbon fiber, polypropylene fibre or modified acrylic fibre, antifreezing agent are in parts by weight
It after weighing, is put into mortar mixer, low whipping speed is that 1000r/min is stirred mixing, enters finished product after obtaining mixture
In packing jar, test package obtains a kind of bridge duct grouting agent as described in claim 1 ~ 8 is any；Or bleed is subtracted
Aqua, ordinary water-reducing agent, filament expansion agent, polyester ethers defoaming agent, carbon fiber, polypropylene fibre or modified polyacrylonitrile are fine
After dimension, antifreezing agent weigh in parts by weight, it is put into mortar mixer, low whipping speed is that 1000r/min is stirred mixing,
90% cement is mixed again to be stirred in mortar mixer with the speed of 1000r/min, enters finished product packing after obtaining mixture
In tank, test package obtains a kind of bridge duct grouting material as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910591821.XA CN110304855A (en) | 2019-07-03 | 2019-07-03 | A kind of bridge duct grouting agent or grouting material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910591821.XA CN110304855A (en) | 2019-07-03 | 2019-07-03 | A kind of bridge duct grouting agent or grouting material |
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| CN110304855A true CN110304855A (en) | 2019-10-08 |
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| CN201910591821.XA Pending CN110304855A (en) | 2019-07-03 | 2019-07-03 | A kind of bridge duct grouting agent or grouting material |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112936504A (en) * | 2021-02-24 | 2021-06-11 | 上海城建预制构件有限公司 | Bridge member and manufacturing method |
| CN114772999A (en) * | 2022-04-14 | 2022-07-22 | 河南拓通交通科技有限公司 | High polymer pore canal grouting material and preparation method thereof |
| CN114804762A (en) * | 2022-04-12 | 2022-07-29 | 湖北福嘉利建材科技有限公司 | Novel prestressed duct grouting material and preparation method thereof |
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2019
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| CN101462861A (en) * | 2008-12-17 | 2009-06-24 | 同济大学 | Grouting material for post-stressed concrete pore passage and preparation thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112936504A (en) * | 2021-02-24 | 2021-06-11 | 上海城建预制构件有限公司 | Bridge member and manufacturing method |
| CN114804762A (en) * | 2022-04-12 | 2022-07-29 | 湖北福嘉利建材科技有限公司 | Novel prestressed duct grouting material and preparation method thereof |
| CN114772999A (en) * | 2022-04-14 | 2022-07-22 | 河南拓通交通科技有限公司 | High polymer pore canal grouting material and preparation method thereof |
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Application publication date: 20191008 |