CN110183160A - A kind of dry-mixed mortar and its preparation process - Google Patents
A kind of dry-mixed mortar and its preparation process Download PDFInfo
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- CN110183160A CN110183160A CN201910547143.7A CN201910547143A CN110183160A CN 110183160 A CN110183160 A CN 110183160A CN 201910547143 A CN201910547143 A CN 201910547143A CN 110183160 A CN110183160 A CN 110183160A
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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
-
- 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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- 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 invention discloses a kind of dry-mixed mortar and its preparation processes, are made of the raw material comprising following weight: 180~240 parts of cement, 560~620 parts husky, 92~111 parts of powder of recycling, 75~92 parts of composite powder, 0.1~0.5 part of starch ether, 0.8~2.3 part of rubber powder, 0.5~0.8 part of water-retaining agent and 30~50 parts of cementitious matter;It has the advantages of being able to achieve resource maximum utilizationization, saving production cost, while can improve the performance of dry-mixed mortar.Preparation method are as follows: sand is dried, is then uniformly mixed with remaining raw material components, can be prepared by dry-mixed mortar;Preparation method of the invention has simple process, easy to implement, professional factory production, batch jobs and the stable advantage of dry-mixed mortar quality obtained.
Description
Technical field
The present invention relates to construction engineering technical fields, more specifically, it relates to a kind of dry-mixed mortar and its preparation process.
Background technique
Mortar is the huge a kind of construction material of architectural engineering dosage, and traditional is that mortar configures at the scene, mortar it is each
Raw material is deposited in construction site, takes up space, there is metering inaccuracy, stirrings unevenly, the workability of mortar is not easy to control,
The disadvantages of quality is difficult to ensure, and environment is polluted, construction efficiency is relatively low.
Dry-mixed mortar is also known as dry-mixed mortar, dry powder and mortar or dry mortar, is by cement, sand, mineral admixture and function items
By a certain percentage, the uniform mixing under professional production factory and drying regime is mixed into the mixed of a kind of graininess or powdery to additive
Close object.Dry-mixed mortar is usually to be transported to building site with dry powder package or form in bulk, after adding water to mix and stir in defined ratio just
It can be used directly.Dry-mixed mortar is with its stay in grade, effect raising, great variety of goods, workability are good, easy to use etc. excellent
Point is widelyd popularize and is used.
Dry-mixed mortar production when, the various siccatives such as the drying of sand, cement, flyash transport arrangement mistake
Cheng Zhonghui generates a large amount of dust, and a large amount of dust drifts in workshop, will affect the air quality of workshop, endangers
The health that vehicle produces staff is produced, therefore, these dust must recycle, and dust after the recovery generally understands centralized collection,
Then it abandons or fills, cause the waste of resource, increase the cost of production dry-mixed mortar.
Summary of the invention
In view of the deficienciess of the prior art, the purpose of the present invention one is to provide a kind of dry-mixed mortar, having can be real
Existing resource maximum utilizationization, the advantages of saving production cost, while the performance of dry-mixed mortar can be improved.
Second object of the present invention is to provide a kind of preparation process of dry-mixed mortar, simple with preparation process,
It is easy to implement, professional factory production, batch jobs and the stable advantage of dry-mixed mortar quality obtained.
Third object of the present invention is to provide a kind of dry-mixed mortar mixture, with good performance, and applies
The wider advantage of range.
To realize above-mentioned first purpose, the present invention provides the following technical scheme that a kind of dry-mixed mortar, the dry mixing sand
Slurry is made of the raw material comprising following weight:
180~240 parts of cement, 560~620 parts husky, recycling 92~111 parts of powder, 75~92 parts of composite powder, starch ether 0.1~0.5
Part, 0.8~2.3 part of rubber powder, 0.5~0.8 part of water-retaining agent and 30~50 parts of cementitious matter;
The recycling powder includes recycling husky powder, recycling cement powder, recycling fine coal ashes and recycling any in mineral admixture powder
It is one or more of;
The composite powder includes at least one in calcium powder, slag powders, wollastonite powder, agstone, steel-making slag powder, phosphorus slag powder and zeolite powder
Kind;The cementitious matter includes at least one of gangue, lime, gypsum, diatomite, starch and dextrin.
By using above-mentioned technical proposal, in the present invention, workshop recycling is utilized in the selection of mortar raw material
Powder is recycled, recycling powder includes any in recycling husky powder, recycling cement powder, recycle fine coal ashes and recycle mineral admixture powder etc.
One or more rationally utilize resource, realize that resource maximum utilizes, reduce mortar production cost.It is added back in mortar raw material
After receiving powder, mortar increases containing mud, reduces the performance of mortar, at this point, composite powder and cementitious matter etc. are added in mortar raw material,
Come ill effect caused by improving mortar due to clay content increases.In the present invention, the ingredient in dry-mixed mortar cooperates, mutually
Effect, under realization resource maximum utilizationization, the precursor for saving production cost, dry-mixed mortar performance obtained has good property
Energy.
The hole of dry-mixed mortar energy closed substrate produced by the present invention, the absorption for reducing wall reach and hinder slow, reduction lightweight
Masonry aspirates moisture in clad can mortar, guarantees that covering mortar material is bonded gel under the conditions of more preferably;Water-retaining property is strong, shrinking percentage
It is low, it is easy to construct;The problems such as mortar quality is stablized, no dusting.
It does in invention, the recycling powder includes recycling husky powder, recycling cement powder, recycling fine coal ashes and recycling mineral to blend
Any one or a few in feed powder;Further, the recycling powder includes recycling husky powder, recycling cement powder, recycling flyash
Powder and recycling mineral admixture powder;Still further, the recycling powder include recycle husky 36~42 parts of powder, recycling cement powder 13~
19~23 parts of mineral admixture powder of 15 parts, 24~27 parts of fine coal ashes of recycling and recycling.
By using above-mentioned technical proposal, recycling mortar is that dry-mixed mortar drifts when production in the powder of workshop
Dirt can including but not limited to generate during the various siccatives such as the drying of sand, cement, flyash are in transport arrangement a large amount of
Dust., it can be achieved that waste utilization, is utmostly reasonable in the preparation that the dust to drift in workshop is used mortar
Using resource, and it can be reduced the process for abandoning or filling up dust, time saving and energy saving, harm of the reduction dust to environment and air, one
Determine the cost that can also reduce production mortar in degree, can also push the development of mortar industry to a certain extent.
In the present invention, the composite powder includes calcium powder, slag powders, wollastonite powder, agstone, steel-making slag powder, phosphorus slag powder and boiling
At least one of mountain flour;Further, the composite powder is calcium powder.
By using above-mentioned technical proposal, in the present invention, when producing mortar or concrete, various mix will use
Material is closed, selects at least to select in calcium powder, slag powders, wollastonite powder, agstone, steel-making slag powder, phosphorus slag powder and zeolite powder in admixture
One kind can improve the performance of mortar, reinforce the intensity and water retention property of mortar, and be able to achieve waste utilization, reduce production
Cost.Preferably, a certain amount of miberal powder is added in mortar raw material, miberal powder and other raw materials cooperate, and can not only reduce life
Cost is produced, the intensity and water-retaining property of mortar are improved, the toughness of mortar can also be increased and reduces its shrinking percentage.
In the present invention, the cementitious matter includes at least one in gangue, lime, gypsum, diatomite, starch and dextrin
Kind;Further, the cementitious matter includes gangue, lime, gypsum and diatomite.
By using above-mentioned technical proposal, recycling powder is added in the feed, contains more soil in recycling powder, mortar
Clay content increases, and can reduce the cohesive force of aggregate and cement slurry, reduce the tensile bond strength of mortar, and with clay content
It increases, what is be stepped up, mortar performance is reduced for mass loss rate and loss of strength rate.Cementitious matter is also known as cementitious material, refers to
In the case where physically or chemically acting on, firm Shi Zhuanti, and the cementing unclassified stores of energy can be become from slurry, there is certain mechanical strength
Substance.The gangue that gangue can be crossed partly or entirely instead of clay composition production ordinary cement, spontaneous combustion or hand-firing,
With certain activity, in the present invention, gangue, lime, gypsum and diatomite cooperate according to a certain percentage, can be made a kind of cementing
Material, and this cementitious matter obtained can cooperate with cement, can enhance the bonding force between each raw material very well, guarantee covering
Mortar material is bonded gel under the conditions of more preferably, and adhesion strength is stretched in enhancing, reduces mass loss rate and loss of strength rate, enhances sand
Durability, intensity and the density of slurry, and diatomite and recycling powder and miberal powder etc. cooperate, the hole of energy closed substrate is reduced
The absorption of wall reaches and hinders moisture in slow, reduction the light block suction clad can mortar;Dry-mixed mortar water-retaining property obtained is strong, receives
The problems such as shrinkage is low, is easy to construct, and quality is stablized, no dusting.
Further, the cementitious matter prepare it is as follows:
Gangue, lime and gypsum are crushed respectively, then clayed into power, by 19~30 parts of coal gangue powder, 5~7 parts of pulverized limestone,
1~3 part and 5~10 parts of diatomite of land plaster is uniformly mixed, and can be prepared by cementitious matter.
By using above-mentioned technical proposal, cementitious matter gangue, lime, gypsum and diatomite are matched in the ratio being bound to
It closes, each component interaction, the bonding force and intensity of the fine reinforced mortar of energy, the water retention property of reinforced mortar.And cementitious matter
Preparation process is simple, easy to implement.
Further, the water-retaining agent is cellulose ether;Still further, the cellulose ether includes hydroxyethyl methyl fibre
Plain ether and hydroxypropyl methyl cellulose ether are tieed up,
By using above-mentioned technical proposal, cellulose ether has the high-molecular compound of ether structure made of cellulose, through ether
Water can be dissolved in after change.Cellulose ether preferentially selects ethoxyl methyl cellulose ether and hydroxypropyl methyl cellulose ether, ethoxy first
Base cellulose is to introduce ethylene oxide substituent group in methylcellulose to be made, and salt tolerance is better than unmodified polymer, gel
Temperature is also higher.Hydroxypropyl methyl cellulose also has simplification to make hydroxypropyl methylcellulose, is to belong to nonionic cellulose compound ether
In a kind, it is a kind of semi-synthetic, sluggish, viscoelasticity polymer.Ethoxyl methyl cellulose ether and hydroxyl
Propyl methocel ether cooperate, cement-sand body system dispersibility can be improved, significantly improve mortar plasticity and
Water-retaining property prevents crackle, can enhance strength of cement, can enhance the adhesiveness with masonry surface, the intensity of reinforced mortar, and can increase
Strong water-retaining property improves workability, is easy to construct, saves the time.
Rubber powder preferentially selects redispersable latex powder in the present invention, and redispersable latex powder is a kind of water-soluble organic poly-
Object powder is closed, be polymer emulsion by spray drying and additive appropriate is selected to be formed, it is redispersible at cream to meet water
Liquid has preferable cementability to inorganic and organic materials.In the present invention, redisperse latex powder and other raw material phase interworkings
It closes, bending strength, tensile strength, adhesive strength, crack resistance, elasticity and the toughness of dry-mixed mortar can be improved, it also can be in certain journey
Dry-mixed mortar shrinkage cracking is avoided on degree, and the workability constructed is preferable.
Further, the dry-mixed mortar is made of the raw material comprising following weight:
180~210 parts of cement, 570~600 parts husky, recycling 92~107 parts of powder, 75~92 parts of calcium powder, starch ether 0.2~0.4
Part, 1.0~1.7 parts of rubber powder, 0.5~0.8 part of cellulose ether and 30~50 parts of cementitious matter;
Cementitious matter includes 1~3 part of 19~30 parts of coal gangue powder, 5~7 parts of pulverized limestone and land plaster and 5~10 parts of diatomite.
By using above-mentioned technical proposal, each raw material component cooperates according to a certain percentage, dry-mixed mortar obtained
Can be high-quality, can closed substrate hole, reduce wall absorption, reach that resistance is slow, reduces water in the light block suction clad can mortar
Point, guarantee that covering mortar material is bonded gel under the conditions of more preferably;Water retentivity of mortar is strong, and shrinking percentage is low, is easy to construct, quality is steady
Calmly, the problems such as no dusting.And while not influencing performance or even certain performances obtain improving, the utilization of resource maximum is realized
Change, protect environment, save production cost, be conducive to sustainable development, pushes the progress of mortar industry.
To realize above-mentioned second purpose, the present invention provides the following technical scheme that
A kind of preparation method of dry-mixed mortar, the preparation method of the dry-mixed mortar include the following steps:
Sand is dried so that the moisture content of sand is less than 8%, by after drying sand and cement, recycling powder, composite powder, starch ether,
Rubber powder, water-retaining agent part and cementitious matter mixing, stir evenly, can be prepared by dry-mixed mortar.
By using above-mentioned technical proposal, when preparing dry-mixed mortar, first sand is baked, removes extra water
Point, husky moisture content is controlled, avoids the moisture content in dry-mixed mortar excessive and agglomerates, influences the uniformity of stirring;Then it will dry
Sand after dry is stirred evenly with remaining raw material components, can be prepared by dry-mixed mortar, and the preparation process of mortar is simple, is suitable for batch
Operation, and produced in professional factory, convenient for recycling recycling powder, realize maximally utilizing for resource, and dry-mixed mortar matter obtained
Amount is stablized.
Further, the cementitious matter prepare it is as follows:
Gangue, lime and gypsum are crushed respectively, then clayed into power respectively, the partial size of each powder is 0.9mm~1.2mm,
By 19~30 parts of coal gangue powder, 5~7 parts of pulverized limestone, 1~3 part of land plaster and 5~10 parts of diatomite mixing, stir evenly
Cementitious matter is made.
To realize above-mentioned third purpose, the present invention provides the following technical scheme that
A kind of dry-mixed mortar mixture, including dry-mixed mortar described in claim 1.
By using above-mentioned technical proposal, the dry-mixed mortar mixture containing dry-mixed mortar produced by the present invention, easy property
Preferably, not doing interface processing when can directly scrape construction, and construct can directly construct, and can reduce working procedure, improve working efficiency.
Mortar mixture obtained can be widely applied to various basal planes, fired brick, concrete, light partition wall and all kinds of building blocks etc., answer
It is wide with range.
In conclusion the invention has the following advantages:
The first, it is realizing resource maximum utilizationization, the performance of dry-mixed mortar can be improved while saving production cost, each component is former
Material cooperates, and can improve the performances such as intensity, water-retaining property, tensile bond intensity and the shrinking percentage of mortar;
The second, the preparation process of dry-mixed mortar is simple, easy to implement, professional factory production, batch jobs and dry mixing sand obtained
Starch the stable advantage of quality;
Third, a kind of dry-mixed mortar mixture, it is with good performance, and the advantage that application range is wider.
Specific embodiment
Invention is further described in detail with reference to embodiments.
Embodiment
Preparation example
Preparation example 1
Preparing for cementitious matter is as follows:
Gangue, lime and gypsum are crushed respectively, then clayed into power respectively, the partial size of each powder is 0.9mm, by 19kg coal
Spoil powder, 5kg pulverized limestone, 1kg land plaster and the mixing of 5kg diatomite, stir evenly, can be prepared by cementitious matter.
Preparation example 2
Preparing for cementitious matter is as follows:
Gangue, lime and gypsum are crushed respectively, then clayed into power respectively, the partial size of each powder is 1.0mm, by 30kg coal
Spoil powder, 7kg pulverized limestone, 3kg land plaster and the mixing of 10kg diatomite, stir evenly, can be prepared by cementitious matter.
Preparation example 3
Preparing for cementitious matter is as follows:
Gangue, lime and gypsum are crushed respectively, then clayed into power respectively, the partial size of each powder is 1.2mm, by 25kg coal
Spoil powder, 6kg pulverized limestone, 2kg land plaster and the mixing of 7kg diatomite, stir evenly, can be prepared by cementitious matter.
Preparation example 4
Preparing for cementitious matter is as follows:
30kg gangue is crushed, wearing into partial size is 1.0mm powder, can be prepared by cementitious matter.
Preparation example 5
15kg starch and 15kg dextrin soil are mixed, stirs evenly, can be prepared by cementitious matter.
Embodiment 1
A kind of preparing for dry-mixed mortar is as follows:
Sand is dried, so that husky moisture content is 7.9%, husky 560kg, 240kg cement, 46kg recycling after then weighing drying
Sha Fen, 15kg recycle cement powder, 27kg recycling fine coal ashes, 23kg and recycle mineral admixture powder, 75kg calcium powder, 500g starch
Ether, 800g rubber powder, 500g cellulose ether and 30kg cementitious matter (preparation example 1 is made) mixing, stir evenly, can be prepared by dry mixing sand
Slurry.
Embodiment 2
A kind of preparing for dry-mixed mortar is as follows:
Sand is dried, so that husky moisture content is 7%, husky 620kg, 210kg cement, 36kg recycling after then weighing drying are husky
Powder, 13kg recycling cement powder, 24kg recycling fine coal ashes, 19kg recycling mineral admixture powder, 92kg calcium powder, 100g starch ether,
1kg rubber powder, 800g cellulose ether and 30kg cementitious matter (preparation example 1 is made) mixing, stir evenly, can be prepared by dry-mixed mortar.
Embodiment 3
A kind of preparing for dry-mixed mortar is as follows:
Sand is dried, so that husky moisture content is 6%, husky 570kg, 180kg cement, 42kg recycling after then weighing drying are husky
Powder, 15kg recycling cement powder, 27kg recycling fine coal ashes, 23kg recycling mineral admixture powder, 83kg calcium powder, 200g starch ether,
1.7kg rubber powder, 600g cellulose ether and 30kg cementitious matter (preparation example 1 is made) mixing, stir evenly, can be prepared by dry mixing sand
Slurry.
Embodiment 4
A kind of preparing for dry-mixed mortar is as follows:
Sand is dried, so that husky moisture content is 5%, husky 600kg, 200kg cement, 39kg recycling after then weighing drying are husky
Powder, 14kg recycling cement powder, 25kg recycling fine coal ashes, 21kg recycling mineral admixture powder, 83kg calcium powder, 400g starch ether,
2.3kg rubber powder, 600g cellulose ether and 30kg cementitious matter (preparation example 1 is made) mixing, stir evenly, can be prepared by dry mixing sand
Slurry.
Embodiment 5
A kind of preparing for dry-mixed mortar is as follows:
Sand is dried, so that husky moisture content is 5%, husky 585kg, 200kg cement, 39kg recycling after then weighing drying are husky
Powder, 14kg recycling cement powder, 25kg recycling fine coal ashes, 21kg recycling mineral admixture powder, 83kg calcium powder, 300g starch ether,
1.4kg rubber powder, 600g cellulose ether and 30kg cementitious matter (preparation example 1 is made) mixing, stir evenly, can be prepared by dry mixing sand
Slurry.
Embodiment 6
Embodiment 6 and the difference of embodiment 5 are that the middle cementitious matter of embodiment 6 takes cementitious matter obtained in 50kg preparation example 2,
Remaining is consistent with embodiment 5.
Embodiment 7
Embodiment 7 and the difference of embodiment 5 are that the middle cementitious matter of embodiment 7 takes cementitious matter obtained in 40kg preparation example 3,
Remaining is consistent with embodiment 5.
Embodiment 8
Embodiment 8 and the difference of embodiment 5 are that the middle cementitious matter of embodiment 7 takes cementitious matter obtained in 30kg preparation example 4,
Remaining is consistent with embodiment 5.
Embodiment 9
Embodiment 9 and the difference of embodiment 5 are that the middle cementitious matter of embodiment 9 takes cementitious matter obtained in 30kg preparation example 5,
Remaining is consistent with embodiment 5.
Embodiment 10
Embodiment 10 and the difference of embodiment 5 be, the recycling powder of embodiment 10 include 49.5kg recycling fine coal ashes and
49.5kg recycles mineral admixture powder, remaining is consistent with embodiment 5.
Embodiment 11
Embodiment 11 and the difference of embodiment 5 be, the composite powder of embodiment 11 include 13kg slag powders, 13kg wollastonite powder,
13kg agstone, 13kg steel-making slag powder, 13kg phosphorus slag powder and 18kg zeolite powder, remaining is consistent with embodiment 5.
Comparative example
Using embodiment 5 as reference group
Comparative example 1
The difference of comparative example 1 and implementation 5 is in comparative example 1 that cementitious matter is not added, other to be consistent with embodiment 6.
Comparative example 2
The difference of comparative example 2 and implementation 5 is in comparative example 2 that composite powder is not added, other to be consistent with embodiment 6.
Comparative example 3
The difference of comparative example 3 and implementation 5 is in comparative example 3 that water-retaining agent is not added, other to be consistent with embodiment 6.
Performance detection test
According to GB/T29756~2013 " dry-mixed mortar physical property test method ", embodiment 1~11 and comparative example 1~3 are detected
The physical property of the modified plastering mortar of obtained dry mixing, shown in testing result table 1.
According to GB6566 " radioactive material radionuclides limitation ", detection is obtained, 1~3 institute of embodiment 1~11 and comparative example
The radioactivity External Exposure Index and radioactivity Outreach services of the modified plastering mortar of dry mixing obtained are respectively less than 1.0, and nothing is waved
It is volatile material, "dead" substance, nontoxic.
The physical property of 1 dry-mixed mortar of table detects table
As it can be seen from table 1 each component raw material cooperates, resource maximum utilizationization is being realized, while saving production cost
The performance of dry-mixed mortar can be improved, the performances such as intensity, water-retaining property, tensile bond intensity and the shrinking percentage of mortar can be improved.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art
Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this
All by the protection of Patent Law in the scope of the claims of invention.
Claims (10)
1. a kind of dry-mixed mortar, which is characterized in that the dry-mixed mortar is made of the raw material comprising following weight:
180~240 parts of cement, 560~620 parts husky, recycling 92~111 parts of powder, 75~92 parts of composite powder, starch ether 0.1~0.5
Part, 0.8~2.3 part of rubber powder, 0.5~0.8 part of water-retaining agent and 30~50 parts of cementitious matter;
The recycling powder includes recycling husky powder, recycling cement powder, recycling fine coal ashes and recycling any in mineral admixture powder
It is one or more of;
The composite powder includes at least one in calcium powder, slag powders, wollastonite powder, agstone, steel-making slag powder, phosphorus slag powder and zeolite powder
Kind;
The cementitious matter includes at least one of gangue, lime, gypsum, diatomite, starch and dextrin.
2. a kind of dry-mixed mortar according to claim 1, which is characterized in that the recycling powder includes recycling husky powder, recycling
Cement powder, recycling fine coal ashes and recycling mineral admixture powder.
3. a kind of dry-mixed mortar according to claim 1, which is characterized in that the composite powder is calcium powder.
4. a kind of dry-mixed mortar according to claim 1, which is characterized in that the cementitious matter includes gangue, lime, stone
Cream and diatomite.
5. a kind of dry-mixed mortar according to claim 4, which is characterized in that preparing for the cementitious matter is as follows:
Gangue, lime and gypsum are crushed respectively, then clayed into power, by 19~30 parts of coal gangue powder, 5~7 parts of pulverized limestone,
1~3 part and 5~10 parts of diatomite of land plaster is uniformly mixed, and can be prepared by cementitious matter.
6. a kind of dry-mixed mortar according to claim 1, which is characterized in that the water-retaining agent is cellulose ether.
7. described in any item a kind of dry-mixed mortars according to claim 1~6, which is characterized in that the dry-mixed mortar by comprising
The raw material of following weight is made:
180~210 parts of cement, 570~600 parts husky, recycling 92~107 parts of powder, 75~92 parts of calcium powder, starch ether 0.2~0.4
Part, 1.0~1.7 parts of rubber powder, 0.5~0.8 part of cellulose ether and 30~50 parts of cementitious matter;
The recycling powder include recycle husky 36~42 parts of powder, 13~15 parts of cement powder of recycling, 24~27 parts of fine coal ashes of recycling and
19~23 parts of mineral admixture powder of recycling;
Cementitious matter includes 1~3 part of 19~30 parts of coal gangue powder, 5~7 parts of pulverized limestone and land plaster and 5~10 parts of diatomite.
8. the preparation method of described in any item a kind of dry-mixed mortars according to claim 1~7, which is characterized in that the dry mixing
The preparation method of mortar includes the following steps:
Sand is dried, so that husky moisture content is less than 8%, by the sand and cement, recycling powder, composite powder, starch ether, glue after drying
Powder, water-retaining agent part and cementitious matter mixing, stir evenly, can be prepared by dry-mixed mortar.
9. a kind of dry-mixed mortar according to claim 8, which is characterized in that preparing for the cementitious matter is as follows:
Gangue, lime and gypsum are crushed respectively, then clayed into power respectively, the partial size of each powder is 0.9mm~1.2mm,
By 19~30 parts of coal gangue powder, 5~7 parts of pulverized limestone, 1~3 part of land plaster and 5~10 parts of diatomite mixing, stir evenly
Cementitious matter is made.
10. a kind of dry-mixed mortar mixture, which is characterized in that including dry-mixed mortar described in claim 1.
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Cited By (1)
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CN113601701A (en) * | 2021-08-10 | 2021-11-05 | 山东望意阳海绵城市建设有限公司 | Preparation method of dry-mixed mortar |
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CN113601701A (en) * | 2021-08-10 | 2021-11-05 | 山东望意阳海绵城市建设有限公司 | Preparation method of dry-mixed mortar |
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Application publication date: 20190830 |