CN104556848B - Polymer spraying mortar and preparation method thereof - Google Patents
Polymer spraying mortar and preparation method thereof Download PDFInfo
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- CN104556848B CN104556848B CN201310474044.3A CN201310474044A CN104556848B CN 104556848 B CN104556848 B CN 104556848B CN 201310474044 A CN201310474044 A CN 201310474044A CN 104556848 B CN104556848 B CN 104556848B
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Abstract
The invention provides a polymer spraying mortar and its preparation method. The polymer spraying mortar contains a premixed powder and water, wherein water accounts for 14-17% of the premixed powder. The premixed powder comprises the following ingredients, by weight, 15-25% of cement, 30-55% of coarse aggregate, 0.1-2% of rubber powder, 5-10% of fine aggregate, 1-5% of an active lightweight object and 1-3% of a premixed additive, wherein the premixed additive contains a corrosion inhibitor which enables the polymer spraying mortar to delay steel corrosion time; and by adding components such as flaky mica, powdered steatile and the like into the active lightweight object, the polymer spraying mortar has good shielding property and thixotropy.
Description
【Technical field】
The present invention relates to a kind of man scape Material Field, particularly a kind of polymer plastic-blasting mortar and preparation method thereof.
【Background technology】
At present the man scape of most domestic and building major part are all still carried out by the way of manually plastering, but people
The form of construction work that work is plastered often because mortar it is not enough with the adhesion of wall or uneven, cause metope Jing often occur hollowing or
The phenomenon such as come off so that very big problem occurs in construction quality；Simultaneously as manually there is very big problem, the construction party plastered
Formula needs substantial amounts of human input, causes the raising of engineering cost, therefore starts the machine that someone introduces foreign countries in building field
The plastering technique of tool spraying, compared to manually plastering, mechanically spraying has fast speed, good stability and reduces artificial advantage,
But due to the problem of various reality, the technology for causing mechanically spraying there is no at home method to carry out on a large scale.
Additionally, mechanical spraying technology is used mostly at present in building field, in the construction technology of man-made tourist site almost not
Once met and constructed using the mode of mechanically spraying, because large-scale man-made tourist site is mostly steel structure framework winding steel wire net
First carry out basic styling, then again with mortar carry out be covered with it is moulding, finally complete man scape.Because large-sized artificial makes scape and one
As building it is different, existing construction technology can not meet the demand in construction time limit, at the same existing mortar there is also it is right
Steel skeleton structure corrosion protection is not good, pump the problems such as not high enough, adhesive strength is not enough, crack resistance is not enough.Therefore, being badly in need of will one kind
The mortar for being suitable for spraying technology is above-mentioned to solve the problems, such as.
【The content of the invention】
To solve the above problems, the present invention provides a kind of polymer plastic-blasting mortar, and comprising premix powders and water, wherein water is accounted for
Than for the 14%～17% of relatively described premix powders；The composition of premix powders is included according to weight ratio：
Further, aforesaid coarse aggregate is little river sand.
Further, aforesaid fine aggregate is flaky mica powder and talcum powder.
Further, aforesaid flaky mica powder accounting is 4% weight portion, and talcum powder accounting is 4% weight portion.
Further, aforesaid flaky mica powder and talcous granularity are 350～420 mesh.
Further, aforesaid active light thing is silicon ash and flyash.
Further, aforesaid silicon ash accounting is 2% weight portion, and flyash accounting is 2% weight portion.
Further, aforesaid active metal powder includes zinc powder or aluminium powder.
Further, aforesaid premix additive is constituted according to following weight percents：The fiber of 12mm～22mm length
25%～35%, water-loss reducer 3%～5%, corrosion inhibitor 20%～30%, lignocellulosic 12%～20%, air entraining agent 0.1%～3%, water reducer
3%～18%.
The present invention provides again a kind of preparation method of aforementioned polymer plastic-blasting mortar simultaneously, comprises the steps of：
(1) modulation premix additive：By fiber, water-loss reducer, corrosion inhibitor, lignocellulosic, air entraining agent and water reducer press than
In example addition mixer, disperse 5～10 minutes, obtain premixing additive；
(2) premix powders are modulated：The premix additive is proportionally added into into cement, coarse aggregate, rubber powder, active light
Material, fine aggregate, active metal powder, disperse 5～10 minutes in the mixer, obtain premix powders；
(3) polymer plastic-blasting mortar is prepared：To add in aforementioned premix powders relative to aforementioned premix powders 14%～17%
Water, polymer plastic-blasting mortar is obtained after mixing and stirring.
Therefore, present invention is primarily targeted at providing a kind of polymer plastic-blasting mortar and preparation method thereof, due to pre-
Corrosion inhibitor is added in mixed additive, corrosion inhibitor can form passivating film in rebar surface, reduce mortar and chlorion to steel construction
Destruction, therefore can effectively delay the corrosion time of steel construction.
Further object is that a kind of polymer plastic-blasting mortar and preparation method thereof is provided, due in fine aggregate
Middle addition flaky mica powder, improves the shielding of mortar, extends the time of penetration of chlorion, reduces chlorion to mortar sheet
The corrosion of body, effectively extends the durability of steel construction.
A further object of the present invention is to provide a kind of polymer plastic-blasting mortar and preparation method thereof, due in fine aggregate
In contain talcum powder again, further increase the thixotropy and pumping of mortar.
A further object of the present invention is to provide a kind of polymer plastic-blasting mortar and preparation method thereof, due to active metal
The presence of powder, after the several years, even if just metallic surface passivating film is etched, active metal powder can serve as anode, to bar construction
Protected, therefore substantially increased the service life of polymer plastic-blasting mortar.
【Specific embodiment】
The present invention mainly discloses a kind of polymer plastic-blasting mortar and preparation method thereof, wherein stock used and preparation
Method unless otherwise indicated should for known to those skilled in the technology concerned, therefore with following description, no longer to sand
Slurry composition makees complete description, formerly explanation.
The present invention provides a kind of polymer plastic-blasting mortar, and comprising premix powders and water, wherein water accounting is relatively described pre-
The 14%～17% of mixed powder；The composition of premix powders is included according to weight ratio：Cement 15%～25%, coarse aggregate 30%～
55%th, rubber powder 0.1～2%, fine aggregate 5%～10%, active light thing 1%～5%, premix additive 1%～3%, active metal powder 0.5
～2%.
Aforementioned cement has polymer plastic-blasting mortar preferably solid in the present invention as a kind of main coagulated material
Change performance, in the cement for adopting of the invention for conventional portland cement, preferably 32.5 grades or 42.5 grades, further
52.5 grades of portland cements can be adopted.
Aforesaid premix additive is included according to following weight percents composition：The fiber 25% of 12mm～22mm length～
35%th, water-loss reducer 3%～5%, corrosion inhibitor 20%～30%, lignocellulosic 12%～20%, air entraining agent 0.1%～3%, water reducer 3%～
18%；Wherein water-loss reducer can be cellulose ether, and air entraining agent can be dodecane machine benzene sulfonic acid sodium salt, add 12mm～22mm length
Fiber can significantly improve the toughness and splitting resistance of Inventive polymers plastic-blasting mortar；Do after being mixed according to aforementioned proportion
To premix additive, can dramatically improves the pump-conveying property and workability of polymer plastic-blasting mortar.Additionally, importantly,
In the formula of Inventive polymers plastic-blasting mortar, in premix additive corrosion inhibitor is added, corrosion inhibitor can be calcium nitrite or
The composition of effectively resistance rust effect is can reach, here is not any limitation as, when can effectively delay the corrosion of steel construction after addition corrosion inhibitor
Between, can make to make scape and there is more preferable durability using the man scape or building of Inventive polymers plastic-blasting mortar.
Aforesaid coarse aggregate is little river sand, and the granularity of little river sand is 40～70 mesh, and the too big coarse aggregate of particle diameter is unfavorable for spray
Apply construction, and to the abrasion of spraying equipment than more serious, the moulding that institute's sculpture goes out is relatively rough coarse；And if particle diameter is too little thick
Aggregate, in the case of same cement-sand ratio, it is more to reach working viscosity water requirement, and is unfavorable for that cement fills to coarse aggregate
Subpackage is wrapped up in, and the intensity for making overall mortar declines.
Aforementioned fine aggregate is flaky mica powder and talcum powder, and flaky mica powder and talcous granularity are 350～420 mesh,
Preferred flaky mica powder and talcous granularity are 400 mesh, additionally, flaky mica powder is added in the formula of the present invention,
Tiny laminated structure is can be uniformly dispersed in mortar voids, forms labyrinth effect, extends the permeation pathway of corrosive medium, is risen
To good shielding action, the shielding of mortar can be effectively improved, extend the time of penetration of chlorion, effectively extend polymer
The durability of plastic-blasting mortar and steel construction, makes the polymer plastic-blasting mortar of the present invention using the man scape in ocean park, or
The building of neighbouring ocean makes scape can effectively improve durability and corrosion resistance；Furthermore, it is of the invention for the ease of spraying application
Talcum powder is added in formula, talcum powder can replace part of cement, delay mortar coagulation time, it is easy to smear smooth after spraying
Sense.Flaky mica powder accounts for the weight portion of overall premix powders 4% in specific implementation process, and talcum powder accounts for the weight of overall premix powders 4%
Amount part.
Aforesaid active light thing can be silicon ash, flyash or slag, and silicon ash, flyash or slag belong to solid waste
Thing, adds such components that the performance of polymer plastic-blasting mortar can be effectively improved as active light thing, especially silicon ash plus
Enter to improve the overall thixotropy of mortar, also to develop a circular economy, promote green culture industry development to contribute.Concrete
In implementation process, from silicon ash, flyash as active light thing, flyash preferably adopts second patent flour to the formula of the present invention
Coal ash, and silicon ash and flyash account for respectively the weight portion of overall premix powders 2%.
Aforesaid active metal powder can be zinc powder or aluminium powder etc., put metal dust of the position less than iron, chloride permeability
After can serve as sacrificial anode steel construction is protected, so as to extend the service life of steel construction.In specific implementation process,
Zinc powder or aluminium powder account for the weight portion of overall premix powders 1%.
Additionally, the present invention provides again a kind of preparation method of aforementioned polymer plastic-blasting mortar simultaneously, comprise the steps of：
(1) modulation premix additive：First by fiber, water-loss reducer, corrosion inhibitor, lignocellulosic, air entraining agent and water reducer
Add in mixer by aforementioned ratio, after being stirred dispersion 5～10 minutes, obtain premixing additive.
(2) premix powders are modulated：Then the premix additive obtained in step 1 is added into cement, thick bone by aforementioned ratio
Material, rubber powder, active light material, fine aggregate and active metal powder, dispersion is stirred in mixer can be obtained for 5～10 minutes
Premix powders.
(3) the polymer plastic-blasting mortar is prepared：Finally, then will add in premix powders relative to the premix powders
14%～17% water, obtains the polymer plastic-blasting mortar after mixing and stirring.
According to aforesaid explanation, applicant proposes lower section specific embodiment：
First by the fiber of 12mm～22mm length of relative premix additive 35%, the water conservation of relative premix additive overall 5%
Agent, the corrosion inhibitor of relative premix additive overall 30%, the lignocellulosic of relative premix additive 15%, relative premix additive
The water reducer of the air entraining agent of overall 0.5% and relative premix additive overall 14.5% adds stirring premix in mixer, Jing to stir
Obtain premixing additive after mixing dispersion 5～10 minutes.
Again by the aforementioned premix weight portion of additive 1.5%, the weight portion of silicon ash 2%, the weight portion of flyash 2%, flaky mica powder 4%
Weight portion, the weight portion of talcum powder 4%, the weight portion of cement 22%, the weight portion of little river sand 50%, the weight portion of rubber powder 0.5%, active metal powder
1% weight portion, in being added to mortar mixer, dispersed with stirring is obtained premix powders in 5～10 minutes.
The water relative to premix powders 16% is initially charged in Mortar spraying machine, to be started and add aforesaid premix after stirring
Powder, completes the polymer plastic-blasting mortar of the present invention after being well mixed.According to polymer plastic-blasting prepared by above-mentioned embodiment
Its performance characteristic parameter of mortar is as follows：
The present invention preferably embodiment is the foregoing is only, the interest field of the present invention is not limited to；While with
On description, for the special personage of correlative technology field should understand and implement, therefore other are without departing from disclosed
The lower equivalent change for being completed of spirit or modification, in should be included in claim.
Claims (7)
1. a kind of polymer plastic-blasting mortar, comprising premix powders and water, it is characterised in that：The water accounting is relatively described premix
The 14%～17% of powder；
The composition of the premix powders is included according to weight ratio：
The premix additive is constituted according to following weight percents：The fiber 25%～35%, water-loss reducer of 12mm～22mm length
3%～5%, corrosion inhibitor 20%～30%, lignocellulosic 12%～20%, air entraining agent 0.1%～3%, water reducer 3%～
18%, each component content sum of above-mentioned premix additive is 100%；
The fine aggregate is flaky mica powder and talcum powder that granularity is 350～420 mesh.
2. polymer plastic-blasting mortar according to claim 1, it is characterised in that：The coarse aggregate is little river sand.
3. polymer plastic-blasting mortar according to claim 1, it is characterised in that：The flaky mica powder accounting is 4% weight
Amount part, the talcum powder accounting is 4% weight portion.
4. polymer plastic-blasting mortar according to claim 1, it is characterised in that：The active light thing is silicon ash and fine coal
Ash.
5. polymer plastic-blasting mortar according to claim 4, it is characterised in that：The silicon ash accounting be 2% weight portion, institute
Flyash accounting is stated for 2% weight portion.
6. polymer plastic-blasting mortar according to claim 1, it is characterised in that：Described active metal powder comprising zinc powder or
Aluminium powder.
7. a kind of preparation method of the polymer plastic-blasting mortar as any one of claim 1～6, it is characterised in that：Bag
Containing the following steps：
(1) modulation premix additive：Fiber, water-loss reducer, corrosion inhibitor, lignocellulosic, air entraining agent and water reducer are added in proportion
In entering mixer, disperse 5～10 minutes, obtain the premix additive；
(2) premix powders are modulated：The premix additive is proportionally added into into cement, coarse aggregate, rubber powder, active light material, thin
Aggregate, active metal powder, disperse 5～10 minutes in the mixer, obtain the premix powders；
(3) the polymer plastic-blasting mortar is prepared：To add in the premix powders relative to the premix powders 14%～
17% water, obtains the polymer plastic-blasting mortar after mixing and stirring.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310474044.3A CN104556848B (en) | 2013-10-11 | 2013-10-11 | Polymer spraying mortar and preparation method thereof |
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| CN104556848A CN104556848A (en) | 2015-04-29 |
| CN104556848B true CN104556848B (en) | 2017-04-26 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110157228A (en) * | 2019-05-10 | 2019-08-23 | 江西服装学院 | A kind of powdery textured coating and its construction method |
| CN112011207B (en) * | 2020-10-12 | 2022-02-25 | 深圳广田高科新材料有限公司 | Machine-sprayed putty powder for external wall and preparation method and use method thereof |
| CN113620663B (en) * | 2021-08-13 | 2022-11-11 | 上海二十冶建设有限公司 | High-performance self-cleaning cement-based water-facing artistic high relief mortar and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1724437A (en) * | 2004-07-21 | 2006-01-25 | 柳州欧维姆机械股份有限公司 | High-strength cement mortar and construction process for pouring said mortar thereof |
| CN101058493A (en) * | 2006-04-23 | 2007-10-24 | 柳州欧维姆机械股份有限公司 | CA mortar for plate-type slag-free orbit and preparation method thereof |
| CN101412609A (en) * | 2008-10-21 | 2009-04-22 | 中冶集团建筑研究总院 | Cement polymer mortar for reinforcing and repairing concrete |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101691288A (en) * | 2009-09-30 | 2010-04-07 | 谢日清 | Lightweight leveling mortar |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1724437A (en) * | 2004-07-21 | 2006-01-25 | 柳州欧维姆机械股份有限公司 | High-strength cement mortar and construction process for pouring said mortar thereof |
| CN101058493A (en) * | 2006-04-23 | 2007-10-24 | 柳州欧维姆机械股份有限公司 | CA mortar for plate-type slag-free orbit and preparation method thereof |
| CN101412609A (en) * | 2008-10-21 | 2009-04-22 | 中冶集团建筑研究总院 | Cement polymer mortar for reinforcing and repairing concrete |
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