CN109665780A - A kind of high flowability reinforcing steel bar connecting sleeve tube grouting material and preparation method thereof - Google Patents
A kind of high flowability reinforcing steel bar connecting sleeve tube grouting material and preparation method thereof Download PDFInfo
- Publication number
- CN109665780A CN109665780A CN201910078175.7A CN201910078175A CN109665780A CN 109665780 A CN109665780 A CN 109665780A CN 201910078175 A CN201910078175 A CN 201910078175A CN 109665780 A CN109665780 A CN 109665780A
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- CN
- China
- Prior art keywords
- grouting material
- steel bar
- reinforcing steel
- connecting sleeve
- bar connecting
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- 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
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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
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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
The present invention provides a kind of high flowability reinforcing steel bar connecting sleeve tube grouting material and preparation method thereof, the weight percentage of each component are as follows: 45%~55% cement, 35%~50% fine aggregate, 2%~15% mineral admixture, 0.25%~0.4% swelling agent, 0.1%~0.3% water-reducing agent, 0.1%~0.2% defoaming agent, 0.2%~0.3% aromatic naphtha, 5%~8% additive.Reinforcing bar sleeve for connection grouting material fluidity prepared by the present invention is high, and overcoming the problems, such as existing reinforcing bar sleeve for connection grouting material, initial flow degree is insufficient in practical engineering applications or has more than needed that initial flow degree is not high, fluidity holding capacity is poor with Standard heading；When guaranteeing the certain mobility of grouting material, at the same improve because grouting material mobility is too strong be not suitable with production and construction the problem of, improve grouting material fluidity, to improve grouting material service performance.
Description
Technical field
The present invention relates to cement-based grout technical fields, in particular it relates to which a kind of high flowability reinforcing bar connects
Sleeve grouting material and preparation method thereof.
Background technique
In recent years, as the construction scale of assembled architecture gradually expands, connect prefabricated components between or prefabricated components with
Connecting material usage amount mainly uses straight screw sleeve connection connector, wherein steel in the trend increased at this stage between site concrete
The quality of muscle sleeve connection connector grouting material is to guarantee one of the key factor of structural reliability.The grouting of existing market upper bush
Material it is many kinds of, quality is irregular, and the overall flow for being mainly manifested in grouting material is poor, intensity is insufficient, product quality
The problems such as stability is poor, simultaneously because formula is complicated, raw material quality stability is poor, production technology is immature causes production cost
It is higher, cause sale price of market generally more expensive.To solve the above problems, the present invention provides a kind of high flowability reinforced bar jointing sleeves
Cylinder grouting material and preparation method thereof, improves the overall flow and stable product quality of grouting material, improves preparation process, reduces
Production cost.
Summary of the invention
In order to solve problems in the prior art, the present invention provides a kind of high flowability reinforcing steel bar connecting sleeve tube grouting material and its
Preparation method improves the overall flow and stable product quality of grouting material, improves preparation process, reduces production cost.
The invention patent provides a kind of high flowability reinforcing steel bar connecting sleeve tube grouting material, and the grouting material is mainly by such as the following group
At: cement, fine aggregate, mineral admixture, swelling agent, water-reducing agent, defoaming agent, aromatic naphtha and additive；Wherein, each component
Weight percentage are as follows:
Preferably, the weight percentage of each component are as follows:
Preferably, the cement portland cement is the portland cement of 42.5 labels or more.
Preferably, the mineral admixture is compounded obtained by a certain percentage by flyash, activated grammite, polycrystalline silicon powder,
Middle flyash, activated grammite, polycrystalline silicon powder mass ratio be (35-45): (20-35): (15-25).
Mineral admixture in the present invention is compounded obtained by a certain percentage by flyash, activated grammite, polycrystalline silicon powder, be because
Cementitious material water requirement is advantageously reduced for the incorporation of flyash, while being conducive to improve the later period mechanics of grouting material slurry aquation
Performance；Activated grammite is the micro/nano level particle with pozzolanic activity, can significantly improve the microcosmic of grouting material hardened paste
Structure promotes the density of grouting material microstructure；Polycrystalline silicon powder can be effectively reduced grouting material water requirement, greatly improve
Its fluidity.
Preferably, the water-reducing agent is slow-setting polycarboxylic acid water reducing agent, solid content 17%.
Preferably, the fine aggregate includes one or both of yellow ground or quartz sand of 30-100 mesh of 16-40 mesh.
The present invention increase 30-100 mesh quartz sand main lift mortar mechanical property, but can sacrifice mortar fluidity and
Workability；The yellow ground for increasing 16-40 mesh mainly improves the fluidity and workability of mortar, but can sacrifice the mechanical property of mortar；
Meanwhile keeping the continuity of sand particle size distribution extremely important to mortar overall performance.It therefore, can using the sand compounding of different meshes
Mortar is set to obtain better comprehensive performance.
Preferably, the additive include water reducing type additive, research work of air entrained type additive, early-strength admixture, outside retardation setting type
Add agent, functional form additive.
The present invention improves the consistency of entire slurry, so that aggregate is in grouting material by the way that aromatic naphtha and additive is added
Middle presentation suspended state, reduces inner frictional resistance while improving grouting material homogenieity, embodies good mobility and pumping
Performance.
The present invention also provides a kind of preparation method of high flowability reinforcing steel bar connecting sleeve tube grouting material, production method include with
Lower step:
Step S1, cement and mineral admixture, water-reducing agent, defoaming agent and swelling agent are added together by weight percentage
It is sufficiently mixed uniformly in mixing grinding machine；
Step S2, corresponding fine aggregate, aromatic naphtha and additive are added to be stirred, mixing time 900S, is passed through
Sleeve grouting material is made after homogenizing processing.
The present invention can significantly reduce grouting material water requirement, increase slurry volume, so as to improve grouting by introducing aromatic naphtha
Expect fluidity.Meanwhile the present invention also improves the gradual loss of grouting material fluidity by preparing mineral admixture, utilizes sustained release
Type polycarboxylate water-reducer gradually discharges the characteristics of water-reducing rate, the characteristics of according to cement initial stage aquation, it can be ensured that composite water-reducing agent pair
The lasting inhibitory effect of cement initial stage hydration rate in grouting material.In addition, the additive in the present invention can produce grouting slurry body
Outside raw retarding effect, its initial flow degree can also be improved.
Technical solution provided by the invention has the benefit that reinforcing bar sleeve for connection grouting material prepared by the present invention
Fluidity is high, overcome existing reinforcing bar sleeve for connection grouting material in practical engineering applications initial flow degree it is insufficient or with specification ratio
The problem relatively more than needed that initial flow degree is not high, fluidity holding capacity is poor；In the certain mobility of guarantee grouting material,
Simultaneously improve because grouting material mobility is too strong be not suitable with production and construction the problem of, reconcile grouting material mobility and intensity it
Between balance, discharge each component gradually, slowly, each component made to play one's part to the full, improve grouting material fluidity, thus
Improve grouting material service performance.
Specific embodiment
The following detailed description of a specific embodiment of the invention, as part of this specification, by embodiment come
Illustrate that the principle of the present invention, other aspects of the present invention, feature and its advantage will become apparent by the detailed description.
Embodiment one
The present invention provides a kind of high flowability reinforcing steel bar connecting sleeve tube grouting material, and the grouting material mainly by forming as follows: water
Mud, fine aggregate, mineral admixture, swelling agent, water-reducing agent, defoaming agent, aromatic naphtha and additive；Wherein, the weight of each component
Percentage composition are as follows: 45% cement, 42% fine aggregate, 4% mineral admixture, 0.35% swelling agent, 0.25% diminishing
Agent, 0.15% defoaming agent, 0.25% aromatic naphtha, 8% additive.
Mineral admixture is compounded obtained by a certain percentage by flyash, activated grammite, polycrystalline silicon powder, wherein flyash, work
Property silicon ash, polycrystalline silicon powder mass ratio be (35-45): (20-35): (15-25).
Mineral admixture in the present invention is compounded obtained by a certain percentage by flyash, activated grammite, polycrystalline silicon powder, be because
Cementitious material water requirement is advantageously reduced for the incorporation of flyash, while being conducive to improve the later period mechanics of grouting material slurry aquation
Performance；Activated grammite is the micro/nano level particle with pozzolanic activity, can significantly improve the microcosmic of grouting material hardened paste
Structure promotes the density of grouting material microstructure；Polycrystalline silicon powder can be effectively reduced grouting material water requirement, greatly improve
Its fluidity.
Water-reducing agent is slow-setting polycarboxylic acid water reducing agent, solid content 17%.
Fine aggregate includes one or both of yellow ground or quartz sand of 30-100 mesh of 16-40 mesh.The present invention increases 30-
The quartz sand main lift mortar mechanical property of 100 mesh, but the fluidity and workability of mortar can be sacrificed；Increase 16-40 purpose
Yellow ground mainly improves the fluidity and workability of mortar, but can sacrifice the mechanical property of mortar；Meanwhile keeping sand particle size distribution
Continuity is extremely important to mortar overall performance.Therefore, mortar can be made to obtain preferably synthesis using the sand compounding of different meshes
Performance.
In addition, additive includes water reducing type additive, research work of air entrained type additive, early-strength admixture, retarding additive, function
It can type additive.The present invention improves the consistency of entire slurry, hangs so that aggregate is presented in grouting material by the way that additive is added
Floating state, reduces inner frictional resistance while improving grouting material homogenieity, embodies good mobility and pump-conveying property.
Embodiment two
The present invention provides a kind of high flowability reinforcing steel bar connecting sleeve tube grouting material, and the grouting material mainly by forming as follows: water
Mud, fine aggregate, mineral admixture, swelling agent, water-reducing agent, defoaming agent, aromatic naphtha and additive；Wherein, the weight of each component
Percentage composition are as follows: 50% cement, 38% fine aggregate, 7% mineral admixture, 0.35% swelling agent, 0.25% diminishing
Agent, 0.15% defoaming agent, 0.25% aromatic naphtha, 5% additive.
Mineral admixture is compounded obtained by a certain percentage by flyash, activated grammite, polycrystalline silicon powder, wherein flyash, work
Property silicon ash, polycrystalline silicon powder mass ratio be (35-45): (20-35): (15-25).
Mineral admixture in the present invention is compounded obtained by a certain percentage by flyash, activated grammite, polycrystalline silicon powder, be because
Cementitious material water requirement is advantageously reduced for the incorporation of flyash, while being conducive to improve the later period mechanics of grouting material slurry aquation
Performance；Activated grammite is the micro/nano level particle with pozzolanic activity, can significantly improve the microcosmic of grouting material hardened paste
Structure promotes the density of grouting material microstructure；Polycrystalline silicon powder can be effectively reduced grouting material water requirement, greatly improve
Its fluidity.
Water-reducing agent is slow-setting polycarboxylic acid water reducing agent, solid content 17%.
Fine aggregate includes one or both of yellow ground or quartz sand of 30-100 mesh of 16-40 mesh.The present invention increases 30-
The quartz sand main lift mortar mechanical property of 100 mesh, but the fluidity and workability of mortar can be sacrificed；Increase 16-40 purpose
Yellow ground mainly improves the fluidity and workability of mortar, but can sacrifice the mechanical property of mortar；Meanwhile keeping sand particle size distribution
Continuity is extremely important to mortar overall performance.Therefore, mortar can be made to obtain preferably synthesis using the sand compounding of different meshes
Performance.
In addition, additive includes water reducing type additive, research work of air entrained type additive, early-strength admixture, retarding additive, function
It can type additive.The present invention improves the consistency of entire slurry, hangs so that aggregate is presented in grouting material by the way that additive is added
Floating state, reduces inner frictional resistance while improving grouting material homogenieity, embodies good mobility and pump-conveying property.
Embodiment three
The present invention provides a kind of high flowability reinforcing steel bar connecting sleeve tube grouting material, and the grouting material mainly by forming as follows: water
Mud, fine aggregate, mineral admixture, swelling agent, water-reducing agent, defoaming agent, aromatic naphtha and additive；Wherein, the weight of each component
Percentage composition are as follows: 48% cement, 40% fine aggregate, 6% mineral admixture, 0.35% swelling agent, 0.2% diminishing
Agent, 0.2% defoaming agent, 0.25% aromatic naphtha, 6% additive.
Test result:
The present invention also provides a kind of preparation method of high flowability reinforcing steel bar connecting sleeve tube grouting material, production method include with
Lower step:
Step S1, cement and mineral admixture, water-reducing agent, defoaming agent and swelling agent are added together by weight percentage
It is sufficiently mixed uniformly in mixing grinding machine；
Step S2, corresponding fine aggregate, aromatic naphtha and additive are added to be stirred, mixing time 900S, is passed through
Sleeve grouting material is made after homogenizing processing.
In conclusion the present invention can significantly reduce grouting material water requirement, increase slurry volume by introducing aromatic naphtha, from
And improve grouting material fluidity.Meanwhile the present invention also by prepare mineral admixture come improve grouting material fluidity through when damage
It loses, the characteristics of water-reducing rate is gradually discharged using sustained-release polycarboxylic water reducer, the characteristics of according to cement initial stage aquation, it can be ensured that subtract
Lasting inhibitory effect of the aqua to cement initial stage hydration rate in grouting material.
Although the present invention essentially describes above embodiments, example is intended only as to be described, and the present invention is simultaneously
It is without being limited thereto.Those of ordinary skill in the art can make the essential characteristics of a variety of modifications and application without departing from embodiment.For example,
Each component that embodiment is shown in detail can be modified and be run, be believed that and be included in the modification and the relevant difference of application
In protection scope of the present invention as defined in the appended claims.
Embodiment involved in this specification is meant that specially feature, structure or the spy described in conjunction with the embodiment
Property is included at least one embodiment of the present invention.These terms for coming across everywhere in specification are not necessarily directed to same
Embodiment.In addition, it is common all to think that it falls into this field when describing a particular feature, structure, or characteristic in conjunction with any embodiment
In the range of these a particular feature, structure, or characteristics that technical staff combines other embodiments that can realize.
Claims (8)
1. a kind of high flowability reinforcing steel bar connecting sleeve tube grouting material, which is characterized in that the grouting material mainly by forming as follows: water
Mud, fine aggregate, mineral admixture, swelling agent, water-reducing agent, defoaming agent, aromatic naphtha and additive；Wherein, the weight of each component
Percentage composition are as follows:
2. high flowability reinforcing steel bar connecting sleeve tube grouting material according to claim 1, which is characterized in that the weight of each component
Measure percentage composition are as follows:
3. high flowability reinforcing steel bar connecting sleeve tube grouting material according to claim 1, which is characterized in that the cement silicate
Cement is the portland cement of 42.5 labels or more.
4. high flowability reinforcing steel bar connecting sleeve tube grouting material according to claim 1, which is characterized in that the mineral admixture
It is compounded obtained by a certain percentage by flyash, activated grammite, polycrystalline silicon powder, wherein the matter of flyash, activated grammite, polycrystalline silicon powder
Amount is than being (35-45): (20-35): (15-25).
5. high flowability reinforcing steel bar connecting sleeve tube grouting material according to claim 1, which is characterized in that the water-reducing agent is slow
Solidifying type polycarboxylate water-reducer, solid content 17%.
6. high flowability reinforcing steel bar connecting sleeve tube grouting material according to claim 1, which is characterized in that the fine aggregate includes
One or both of yellow ground or the quartz sand of 30-100 mesh of 16-40 mesh.
7. high flowability reinforcing steel bar connecting sleeve tube grouting material according to claim 1, which is characterized in that the additive includes
Water reducing type additive, research work of air entrained type additive, early-strength admixture, retarding additive, functional form additive.
8. a kind of preparation method of high flowability reinforcing steel bar connecting sleeve tube grouting material, which is characterized in that its production method includes following
Step:
Step S1, mixing is added together by weight percentage by cement and mineral admixture, water-reducing agent, defoaming agent and swelling agent
It is sufficiently mixed in grinding machine uniformly；
Step S2, it adds corresponding fine aggregate, aromatic naphtha and additive to be stirred, mixing time 900S, by homogenizing
Sleeve grouting material is made after processing.
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| CN201910078175.7A CN109665780A (en) | 2019-01-28 | 2019-01-28 | A kind of high flowability reinforcing steel bar connecting sleeve tube grouting material and preparation method thereof |
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| CN201910078175.7A CN109665780A (en) | 2019-01-28 | 2019-01-28 | A kind of high flowability reinforcing steel bar connecting sleeve tube grouting material and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111646758A (en) * | 2020-05-15 | 2020-09-11 | 湖南武源建材有限责任公司 | Sleeve grouting material for connecting reinforcing steel bars and preparation process thereof |
| CN112794689A (en) * | 2020-12-31 | 2021-05-14 | 上海三瑞高分子材料股份有限公司 | Sleeve grouting material for connecting assembled construction steel bars |
| CN115385633A (en) * | 2022-08-31 | 2022-11-25 | 南京兴佑交通科技有限公司 | Special grouting material for crack-resistant composite grouting pavement based on polymer modification and preparation method thereof |
| CN115477512A (en) * | 2022-08-31 | 2022-12-16 | 南京兴佑交通科技有限公司 | Anti-rutting composite grouting material special for pavement and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102531457A (en) * | 2012-01-12 | 2012-07-04 | 四川路加四通科技发展有限公司 | Subway shield segment-dedicated admixture, and preparation method and usage thereof |
| CN106699077A (en) * | 2016-12-19 | 2017-05-24 | 重庆市建筑科学研究院 | Sleeve grouting material for assembly type building steel bar connection |
| CN106830856A (en) * | 2017-02-13 | 2017-06-13 | 武汉源锦建材科技有限公司 | A kind of ungauged regions reinforcing bar sleeve for connection grouting material and preparation method thereof |
| CN107572978A (en) * | 2017-09-27 | 2018-01-12 | 中建材中岩科技有限公司 | Bar connecting sleeve grouting material and preparation method thereof |
| CN107935504A (en) * | 2017-11-27 | 2018-04-20 | 江西省萍乡市联友建材有限公司 | Early strengthening and high strengthening, microdilatancy, the bar connecting sleeve grouting material of since conservation function |
| CN108947423A (en) * | 2018-08-30 | 2018-12-07 | 成都宏基建材股份有限公司 | A kind of reinforcing bar sleeve for connection grouting material of high fluidity and preparation method thereof |
-
2019
- 2019-01-28 CN CN201910078175.7A patent/CN109665780A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102531457A (en) * | 2012-01-12 | 2012-07-04 | 四川路加四通科技发展有限公司 | Subway shield segment-dedicated admixture, and preparation method and usage thereof |
| CN106699077A (en) * | 2016-12-19 | 2017-05-24 | 重庆市建筑科学研究院 | Sleeve grouting material for assembly type building steel bar connection |
| CN108947422A (en) * | 2016-12-19 | 2018-12-07 | 重庆市建筑科学研究院 | A kind of dry powder blend material suitable for the grouting of assembled architecture reinforcing bar sleeve for connection |
| CN106830856A (en) * | 2017-02-13 | 2017-06-13 | 武汉源锦建材科技有限公司 | A kind of ungauged regions reinforcing bar sleeve for connection grouting material and preparation method thereof |
| CN107572978A (en) * | 2017-09-27 | 2018-01-12 | 中建材中岩科技有限公司 | Bar connecting sleeve grouting material and preparation method thereof |
| CN107935504A (en) * | 2017-11-27 | 2018-04-20 | 江西省萍乡市联友建材有限公司 | Early strengthening and high strengthening, microdilatancy, the bar connecting sleeve grouting material of since conservation function |
| CN108947423A (en) * | 2018-08-30 | 2018-12-07 | 成都宏基建材股份有限公司 | A kind of reinforcing bar sleeve for connection grouting material of high fluidity and preparation method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111646758A (en) * | 2020-05-15 | 2020-09-11 | 湖南武源建材有限责任公司 | Sleeve grouting material for connecting reinforcing steel bars and preparation process thereof |
| CN112794689A (en) * | 2020-12-31 | 2021-05-14 | 上海三瑞高分子材料股份有限公司 | Sleeve grouting material for connecting assembled construction steel bars |
| CN115385633A (en) * | 2022-08-31 | 2022-11-25 | 南京兴佑交通科技有限公司 | Special grouting material for crack-resistant composite grouting pavement based on polymer modification and preparation method thereof |
| CN115477512A (en) * | 2022-08-31 | 2022-12-16 | 南京兴佑交通科技有限公司 | Anti-rutting composite grouting material special for pavement and preparation method thereof |
| CN115385633B (en) * | 2022-08-31 | 2023-09-19 | 南京兴佑交通科技有限公司 | Special grouting material for anti-crack composite grouting pavement based on polymer modification and preparation method thereof |
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Application publication date: 20190423 |
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