CN108069635A - The steady modeling agent of mechanically spraying mortar - Google Patents
The steady modeling agent of mechanically spraying mortar Download PDFInfo
- Publication number
- CN108069635A CN108069635A CN201711303013.6A CN201711303013A CN108069635A CN 108069635 A CN108069635 A CN 108069635A CN 201711303013 A CN201711303013 A CN 201711303013A CN 108069635 A CN108069635 A CN 108069635A
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- China
- Prior art keywords
- mortar
- agent
- mechanically spraying
- parts
- steady modeling
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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
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
It is composed of the following components in parts by mass the invention discloses a kind of surely modeling agent of mechanically spraying mortar：20~22 parts of retarder, 20~22 parts of water-reducing agent, 12~14 parts of cellulose ether, 0.5~1 part of thixotropic agent, 25~30 parts of bentonite, 15~20 parts of attapulgite.Steady modeling agent of the invention, can be applied to mechanically spraying mortar, can improve thixotropy, water-retaining property, pumping, the storage characteristics of mortar.
Description
Technical field
The present invention relates to building material technical fields, and in particular to a kind of steady modeling agent of mechanically spraying mortar.
Background technology
China begins to the mechanized construction of research mortar from last century the seventies, is tried in multiple construction sites
It tests, but can not realize that mortar mechanization was applied due to the factors such as Site mortar particle is uneven, quality is unstable at that time
Work.In recent years with the promotion of the factors such as the development of premixing mortar, the introduction of external Mortar spraying machine construction equipment, premixing mortar
Mechanized construction start to be applied in architectural engineering in Beijing, Shanghai, Guangzhou, Jiangsu and zhejiang and other places, and achieve very much
Construction experience.
Machine-blasting mortar is in spraying process, and mortar storage period is short and stability is poor, pump-conveying property does not reach requirement, often blocks up
Pump, the bounce of mortar is bigger, metope dehydration than the factors such as very fast influence so that the progress and effect of mechanized construction
Rate does not reach requirement.
The content of the invention
It is an object of the invention to provide a kind of steady modeling agent, can be applied to mechanically spraying mortar, can improve touching for mortar
Denaturation, water-retaining property, pumping, storage characteristics.
To achieve the above object, the present invention provides a kind of mechanically spraying mortar steady modeling agent, in parts by mass by with the following group
It is grouped into：
20~22 parts of retarder,
20~22 parts of water-reducing agent,
12~14 parts of cellulose ether,
0.5~1 part of thixotropic agent,
25~30 parts of bentonite,
15~20 parts of attapulgite.
Preferably, the retarder is sodium citrate.
Preferably, the water-reducing agent is FOX-8HP polycarboxylate water-reducer pulvis.
Preferably, the cellulose ether is 40000 viscosity HPMC, one kind in 75000 viscosity HPMC or two kinds of mixing
Object.
Preferably, the thixotropic agent is starch ether.
Preferably, the bentonite is sodium bentonite.
The present invention also provides the applications of steady modeling agent of above-mentioned mechanically spraying mortar：Agent will surely be moulded used in common wet-mixing plastering sand
In slurry.
The present invention also provides the above-mentioned mechanically spraying mortar preparation methods of steady modeling agent：It is weighed respectively by above-mentioned proportion by weight
Component is added in Agravicmixer, is sufficiently mixed uniformly, you can obtains mechanically spraying mortar with steady modeling agent.
The advantages of the present invention are：A kind of steady modeling agent is provided, mechanically spraying mortar is can be applied to, can carry
Thixotropy, water-retaining property, pumping, the storage characteristics of high mortar.
Mechanically spraying plastering mortar of the present invention surely moulds agent with following features：
1) mechanically spraying plastering mortar of the present invention surely moulds influence of the agent to M15 plastering mortar performances：Addition mechanically spraying of the present invention
After plastering mortar surely moulds agent, the storage characteristics compared with, mortar are promoted with workability compared with the control group, and bleeding, water-retaining property do not improve,
Mortar workability is improved, and thixotropy is high, and pumping pressure is smaller, and whitewashing rebound is small, shows steady modeling agent of the invention to improving sand
The workability of slurry and water-retaining property effect are preferable.
2) mechanically spraying plastering mortar of the present invention surely moulds influence of the agent to M15 plastering mortar denseness：Addition present invention machinery
After spray plaster mortar surely moulds agent, mortar goes out machine denseness for 100~105mm, and denseness loss is little after 4h, the storage characteristics of mortar
Energy, pump-conveying property are significantly improved, and are more advantageous to the requirement for meeting live machine spray.
3) mechanically spraying plastering mortar of the present invention surely moulds influence of the agent to M15 plastering mortar water retentions：Addition machine of the present invention
After tool spray plaster mortar surely moulds agent, the water retention of mortar is maintained at 94%~96%, shows mechanically spraying plastering sand of the present invention
The steady modeling agent of slurry is preferable to the water-retaining property effect for improving mortar.
4) mechanically spraying plastering mortar of the present invention surely moulds influence of the agent to M15 plastering mortar pump-conveying properties：The addition present invention
After mechanically spraying plastering mortar surely moulds agent, mortar by small stone pump convey it is not stratified, not within bleeding, mortar fed distance 100m
Not stifled pump, the mortar state sprayed by lance head are uniform, stable quality.
5) mechanically spraying plastering mortar of the present invention surely moulds influence of the agent to M15 plastering mortar 28d compression strength：Add this hair
After bright mechanically spraying plastering mortar surely moulds agent, 28d compression strength is 19~22MPa, and the compression strength of mortar is obviously improved.
As it can be seen that workability and the construction that mortar can be obviously improved after agent are surely moulded using mechanically spraying plastering mortar of the present invention
Property, no to isolate bleeding, the mortar state for do not block up pump within mortar fed distance 100m, spraying by lance head is uniform, and quality is steady
It is fixed；The working performance of mortar is fully able to meet site operation requirement, and construction efficiency, postmenstruation calibrating, all walls are greatly improved
It cracks without hollowing in face.
Specific embodiment
With reference to embodiment, the specific embodiment of the present invention is further described.Following embodiment is only used for more
Add and clearly demonstrate technical scheme, and be not intended to limit the protection scope of the present invention and limit the scope of the invention.
Embodiment 1
A kind of steady modeling agent of mechanically spraying mortar, the proportioning of each component are as shown in table 1：
Table 1
| Component | It matches (mass parts) |
| Sodium citrate | 20 |
| FOX-8HP polycarboxylate water-reducer pulvis | 20 |
| 40000 viscosity HPMC | 13 |
| Starch ether | 1 |
| Sodium bentonite | 26 |
| Attapulgite | 20 |
Preparation method：Each component is weighed according to the proportion by weight in such as table 1, is added in Agravicmixer, is sufficiently mixed
It is even, you can to obtain mechanically spraying mortar with steady modeling agent.
Embodiment 2
A kind of steady modeling agent of mechanically spraying mortar, the proportioning of each component are as shown in table 2：
Table 2
| Component | It matches (mass parts) |
| Sodium citrate | 21 |
| FOX-8HP polycarboxylate water-reducer pulvis | 21 |
| 75000 viscosity HPMC | 14 |
| Starch ether | 1 |
| Sodium bentonite | 26 |
| Attapulgite | 17 |
Preparation method：Each component is weighed according to the proportion by weight in such as table 2, is added in Agravicmixer, is sufficiently mixed
It is even, you can to obtain mechanically spraying mortar with steady modeling agent.
Embodiment 3
A kind of steady modeling agent of mechanically spraying mortar, the proportioning of each component are as shown in table 3：
Table 3
| Component | It matches (mass parts) |
| Sodium citrate | 22 |
| FOX-8HP polycarboxylate water-reducer pulvis | 22 |
| 40000 viscosity HPMC | 6 |
| 75000 viscosity HPMC | 6 |
| Starch ether | 0.5 |
| Sodium bentonite | 25 |
| Attapulgite | 18.5 |
Preparation method：Each component is weighed according to the proportion by weight in such as table 3, is added in Agravicmixer, is sufficiently mixed
It is even, you can to obtain mechanically spraying mortar with steady modeling agent.
Embodiment 4
A kind of steady modeling agent of mechanically spraying mortar, the proportioning of each component are as shown in table 4：
Table 4
Preparation method：Each component is weighed according to the proportion by weight in such as table 4, is added in Agravicmixer, is sufficiently mixed
It is even, you can to obtain mechanically spraying mortar with steady modeling agent.
The steady modeling agent of the various embodiments described above is applied in common wet-mixing plastering mortar.
Used raw material have cement, yellow ground, high thixotropic Machine-blasting mortar surely to mould agent, water in plastering mortar.
1) cement：P.O.42.5 Portland cements.
2) yellow ground：Grain size≤4.75mm, modulus of fineness 2.3, clay content ＜ 0.3%.
3) additive：Machine-blasting mortar prepared by embodiment 1-4 surely moulds agent.
4) water：Tap water should meet the regulation of JGJ 63.
Experimental comparison's method is as shown in table 5 (each data are mass parts dosage in table 5).
Table 5
| Number | Cement | Yellow ground | Water | Steady modeling agent |
| Control group | 200 | 800 | 110 | —— |
| Embodiment 1 | 200 | 800 | 110 | 2 |
| Embodiment 2 | 200 | 800 | 110 | 2 |
| Embodiment 3 | 200 | 800 | 110 | 2 |
| Embodiment 4 | 200 | 800 | 110 | 2 |
Plastering mortar performance test mainly includes denseness, water-retaining property, workability, compression strength etc., it is required that meeting GB/
T25181- 2010《Premixing mortar》.
Testing result is as shown in table 6：
Table 6
It is shown by above-described embodiment and its mechanical experimental results, after control group goes out machine, the water-retaining property of mortar is poor, bleeding
More, pumping is poor, serious bleeding after 4h, and the separation of sand material can not carry out mechanically spraying.Embodiment 1 to 4 is with the addition of machine sandblasting
After the steady modeling agent of slurry, water retentivity of mortar is good, mortar conveys not stratified, not bleeding by small stone pump, passes through the mortar that lance head sprays
State is uniform, the mortar within single spin 2cm, not sagging, do not slide, and the metope sprayed is easy to worker and receives face, receives light, shows
It is preferable to the workability and water-retaining property effect for improving mortar that mechanically spraying plastering mortar of the present invention surely moulds agent.
After addition mechanically spraying plastering mortar of the present invention surely moulds agent, mortar goes out machine denseness for 100~105mm, is after 4h
95~100mm, denseness loss is small, and the storge quality of mortar, pump-conveying property is significantly improved, and is more advantageous to meeting live machine
The requirement of spray.It is relatively good to illustrate that steady modeling agent of the invention has the denseness retentivity of mortar for control group denseness loss up to 40%
Effect.
After addition mechanically spraying plastering mortar of the present invention surely moulds agent, the water retention of mortar is maintained at 94%~96%, shows
High thixotropic mechanically spraying plastering mortar of the present invention surely moulds that agent is preferable to the water-retaining property effect for improving mortar, and the workability of mortar is protected
The ability of holding is significantly improved, and is more advantageous to meeting site operation requirement.
After addition mechanically spraying plastering mortar of the present invention surely moulds agent, mortar conveys not stratified, not bleeding, sand by small stone pump
It is uniform to starch not stifled pump within fed distance 100m, the mortar state sprayed by lance head, stable quality.
After addition mechanically spraying plastering mortar of the present invention surely moulds agent, 28d compression strength is 20~22MPa, and mortar is resisted
Compressive Strength is obviously improved.Compared with control group (compression strength 15.9MPa), the steady modeling agent of the present invention has the compression strength of mortar aobvious
The raising effect of work.
Claims (7)
1. the steady modeling agent of mechanically spraying mortar, which is characterized in that composed of the following components in parts by mass：
20~22 parts of retarder,
20~22 parts of water-reducing agent,
12~14 parts of cellulose ether,
0.5~1 part of thixotropic agent,
25~30 parts of bentonite,
15~20 parts of attapulgite.
2. the steady modeling agent of mechanically spraying mortar according to claim 1, which is characterized in that the retarder is citric acid
Sodium.
3. the steady modeling agent of mechanically spraying mortar according to claim 2, which is characterized in that the water-reducing agent is FOX-8HP
Polycarboxylate water-reducer pulvis.
4. the steady modeling agent of mechanically spraying mortar according to claim 3, which is characterized in that the cellulose ether is 40000
Viscosity HPMC, one kind in 75000 viscosity HPMC or two kinds of mixture.
5. the steady modeling agent of mechanically spraying mortar according to claim 4, which is characterized in that the thixotropic agent is starch ether.
6. the steady modeling agent of mechanically spraying mortar according to claim 5, which is characterized in that the bentonite is Na-bentonite
Soil.
7. the application of steady modeling agent of mechanically spraying mortar any one of claim 1 to 6, which is characterized in that will surely mould agent
In common wet-mixing plastering mortar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711303013.6A CN108069635A (en) | 2017-12-11 | 2017-12-11 | The steady modeling agent of mechanically spraying mortar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711303013.6A CN108069635A (en) | 2017-12-11 | 2017-12-11 | The steady modeling agent of mechanically spraying mortar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108069635A true CN108069635A (en) | 2018-05-25 |
Family
ID=62157826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711303013.6A Pending CN108069635A (en) | 2017-12-11 | 2017-12-11 | The steady modeling agent of mechanically spraying mortar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108069635A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108609933A (en) * | 2018-06-26 | 2018-10-02 | 常州市众华建材科技有限公司 | High-performance dry-powder mortar for machinery plastering |
| CN108911571A (en) * | 2018-08-27 | 2018-11-30 | 四川聚力建材科技有限公司 | A kind of additional agent prescription and preparation method for Machine-blasting mortar |
| CN110342875A (en) * | 2019-07-12 | 2019-10-18 | 江苏澄筑建筑科技有限公司 | A kind of spary coating type very-high performance decorative coagulation soil material and preparation method thereof |
| CN111153620A (en) * | 2020-01-17 | 2020-05-15 | 张家港弗克新型建材有限公司 | Special plastic stabilizer for super-retarded plastering mortar |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103693888A (en) * | 2013-12-10 | 2014-04-02 | 同济大学 | Water retaining thickener taking bentonite as main raw material and preparation method |
| CN106365555A (en) * | 2016-08-29 | 2017-02-01 | 中建商品混凝土（福建）有限公司 | Mechanical injection wet-mixing plastering mortar and preparing method thereof |
-
2017
- 2017-12-11 CN CN201711303013.6A patent/CN108069635A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103693888A (en) * | 2013-12-10 | 2014-04-02 | 同济大学 | Water retaining thickener taking bentonite as main raw material and preparation method |
| CN106365555A (en) * | 2016-08-29 | 2017-02-01 | 中建商品混凝土（福建）有限公司 | Mechanical injection wet-mixing plastering mortar and preparing method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 张巨松: "《混凝土学（第2版）》", 30 June 2017, 哈尔滨工业大学出版社 * |
| 赵云龙等: "《石膏干混建材生产及应用技术》", 30 November 2016, 中国建材工业出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108609933A (en) * | 2018-06-26 | 2018-10-02 | 常州市众华建材科技有限公司 | High-performance dry-powder mortar for machinery plastering |
| CN108911571A (en) * | 2018-08-27 | 2018-11-30 | 四川聚力建材科技有限公司 | A kind of additional agent prescription and preparation method for Machine-blasting mortar |
| CN110342875A (en) * | 2019-07-12 | 2019-10-18 | 江苏澄筑建筑科技有限公司 | A kind of spary coating type very-high performance decorative coagulation soil material and preparation method thereof |
| CN111153620A (en) * | 2020-01-17 | 2020-05-15 | 张家港弗克新型建材有限公司 | Special plastic stabilizer for super-retarded plastering mortar |
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Application publication date: 20180525 |