CN110510912A - A kind of wet mixing mortar additive and preparation method thereof - Google Patents
A kind of wet mixing mortar additive and preparation method thereof Download PDFInfo
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- CN110510912A CN110510912A CN201910938211.2A CN201910938211A CN110510912A CN 110510912 A CN110510912 A CN 110510912A CN 201910938211 A CN201910938211 A CN 201910938211A CN 110510912 A CN110510912 A CN 110510912A
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- parts
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- wet mixing
- mixing mortar
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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
Abstract
The present invention discloses a kind of wet mixing mortar additive, the additive includes component A and B component, component A by weight ratio includes: 30-50 parts of mother liquor, 50-70 parts of water and 0.1-0.2 parts of water-retaining agent, and wherein mother liquor includes: 42-54 parts of bottom water, 6-10 parts of water-reducing agent monomer, 24-30 parts of sodium gluconate, 2.4-3.6 parts of lauryl sodium sulfate, 0.08-0.12 parts of vitamin C, 0.4-0.6 parts of ammonium persulfate, 4-6 parts of acrylic acid, 1.5-2.5 parts of hydrogen peroxide and 5.5-8.5 parts of water by weight ratio；B component includes 62-:82 parts of liquid glucose acid sodium, 4-8 parts of pulvis sodium gluconate, the water of 4-8 parts of white sugar and 10-22 part.Additive preparation of the invention is simple, easy to use, is added in wet mixing mortar, can stablize the quality of wet mixing mortar, there are good workability and sag resistance, while freeze proof impervious effect is good, improves the durability and compression strength of mortar, and the waste of reduction mortar, energy-saving and emission-reduction.The present invention also provides the preparation methods of above-mentioned additive.
Description
Technical field
The invention belongs to grout additive technical fields more particularly to a kind of wet mixing mortar additive and preparation method thereof.
Background technique
Currently, in national related industry policy, it is in all parts of the country big-and-middle especially under environmental protection, the requirement of energy policy, guidance
Small city all starts to forbid Site mortar, widelys popularize premixing mortar, and premixing mortar has dry-mixed mortar and wet mixing mortar two
Kind form.Dry-mixed mortar is to be composed of solid materials such as cementitious material, mineral admixture, fine aggregate, additives, according to
Certain proportion carries out a kind of dry powder construction material made of premixing by dry mixing process, since dry-mixed mortar holds during transport
Easily isolation, and raw sand needs to carry out multi-stage screening after drying, energy consumption is high, and produced dust is to environment dirt in dry mixing process
Dye is big.Wet mixing mortar refers to that various raw material (including water) through reasonable preparation, after carrying out the factorial production, (are led to by means of transport
Commonly use closed tank car) it is transported to building site, proportion and performance are protected.Therefore, national policy is also from " featured dry mixing " to " dry and wet
Develop simultaneously ", as a member important in premixing mortar, wet mixing mortar welcomes the opportunity of development.
Grout additive is mainly used in masonry and plastering mortar.It, can be according to the behaviour of worker after grout additive is added
Make habit and working time to arrange marching into the arena the time for mortar, is not required to worry mortar solidification in the short time, also without the concern for surplus
The waste problem of remaining mortar.Wet mixing mortar is transported to scene from production and is used, to the more demanding of its working performance, Ye Jiyao
Ask mortar after adding water mix, initial set be previously required to have workability good enough, can be carried out normal construction, operation, and firmly
To meet requirement of the engineering structure to mechanical property and durability etc. after change.Therefore, it is generally used in engineering and has both guarantor
The additive of the performances such as water, slow setting guarantees the good water-retaining property of wet mixing mortar and application property.
In the prior art, wet mixing mortar additive is usually to be made of A material and B material, wherein existing water conservation group in component A
Point, and there is slow setting component, if necessary to adjust the operating time of wet mixing mortar, is necessarily required to change adding for each substance in A material material
The additive amount of dosage, such water-retaining component also changes correspondingly, and the water-retaining property and density of wet mixing mortar will be affected, if needed
Solve the problems, such as this, it is necessary to for the component A of different operating time configuration different ratios, produce in this way and using not square
Just.The Chinese patent of existing Patent No. CN106746891B provides a kind of wet mixing mortar additive, and component A is as water conservation
Component, for B component as slow setting component, the wet mixing mortar for meeting the different operation time is can be obtained in the volume that need to only adjust B component,
And using the methyl hydroxyethyl cellulose ether with particular viscosity as water-retaining agent has higher gelling temp, has very well
Water-retaining property, but the wet mixing mortar additive cannot control the wet mixing mortar open hour very well, and open hour range is smaller, no
It can be instant dry.In addition, the addition of existing wet mixing mortar additive, when the temperature such as summer sand, cement, water are higher, water conservation
Performance can be decreased obviously, poor storage stability；Performance has institute's difference, different wet-mixing sand in transport, storage, work progress
It is also different to the freeze proof, impervious of mortar, durability and other effects to starch additive.
To solve the above-mentioned problems, overcome the problems of in the prior art, the present invention provides it is a kind of prepare it is simple,
Wet mixing mortar additive easy to use can stablize the quality of wet mixing mortar, there is good workability and sag resistance, resist simultaneously
Freeze that impervious effect is good, improve the durability and compression strength of mortar, and the waste of reduction mortar, energy-saving and emission-reduction.
Summary of the invention
Wet mixing mortar additive provided by the invention solve in the prior art production and it is inconvenient to use, in summer temp
The problems such as when higher, water retention property is bad, and storage stability effect is bad, and the present invention can stablize the product of wet mixing mortar
Matter makes wet mixing mortar have preferably freeze proof, impervious etc. performances.
In order to solve the above-mentioned technical problems, the present invention provides a kind of wet mixing mortar additive, including component A and B component,
Component A by weight ratio includes: 30-50 parts of mother liquor, 50-70 parts of water and 0.1-0.2 parts of water-retaining agent, and wherein mother liquor is pressed
Weight proportion includes: 42-54 parts of bottom water, 6-10 parts of water-reducing agent monomer, 24-30 parts of sodium gluconate, 2.4-3.6 parts
Lauryl sodium sulfate, 0.08-0.12 parts of vitamin C, 0.4-0.6 parts of ammonium persulfate, 4-6 parts of acrylic acid, 1.5-2.5
The hydrogen peroxide and 5.5-8.5 parts of water of part；B component includes 62-:82 parts of liquid glucose acid sodium, 4-8 parts of pulvis glucose
Sour sodium, the water of 4-8 parts of white sugar and 10-22 part.
Further, the water-reducing agent monomer is methyl allyl polyoxyethylene ether.
Further, the water-retaining agent is hydroxypropyl methyl cellulose.
The present invention also provides the preparation method of above-mentioned wet mixing mortar additive, the preparation method of component A the following steps are included:
(1) raw material is weighed by weight ratio；
(2) bottom water is first heated to 30 DEG C under stiring, then be added water-reducing agent monomer, continuously add sodium gluconate and
0.4-0.6 parts of lauryl sodium sulfate, stirs evenly；
(3) a material, b material and c material are prepared:
A material: vitamin C is dissolved into 1.5-2.5 parts of water and obtains a material；
B material: it dilutes ammonium persulfate and acrylic acid to obtain b material with 4-6 parts of water；
C material: 1.5-2.5 parts of hydrogen peroxide is weighed stand-by.
(4) when the mixed liquor that step (2) are prepared being heated to 55 DEG C, prepared c material is added, temperature is then risen to 60
DEG C when be added a material, added after adding b material；
(5) the mixed liquor reaction temperature that step (4) is prepared is controlled at 70 DEG C hereinafter, simultaneously keeping the temperature 3 hours at this temperature；
(6) mixed liquor that step (5) configure is cooled to 30 DEG C, 2-3 parts of lauryl sodium sulfate, stirring is then added
Uniformly to get mother liquor；
(7) 30-50 parts of mother liquor is added in 50-70 parts of water, then adds 0.1-0.2 parts of hydroxypropyl methyl
Cellulose stirs evenly to get component A；
B component the preparation method comprises the following steps: first water is added in agitator tank, then sequentially add liquid glucose acid sodium, pulvis
Sodium gluconate and white sugar, stirring is to being completely dissolved to get B component.
Further, the type of cooling in above-mentioned steps (6) can be natural cooling or circulating cooling.
The application method of wet mixing mortar additive of the present invention are as follows: the volume of component A is 4Kg/m3-8Kg/m3, B component mixes
Amount is 4Kg/m3-10Kg/m3。
Compared with prior art, the beneficial effects of the present invention are: wet mixing mortar additive provided by the invention, component A master
It to be water-retaining component, B component is slow setting component, it is only necessary to which the addition content of simple adjustment B component, which can be obtained, meets different operation
The wet mixing mortar of time, easy to use, production operation is simple；Component A is mainly used for adjusting the bulk density of mortar, has wet mixing mortar
There are good workability, sag resistance, durability, freeze proof, anti-permeability performance, keep the plasticity of mortar, it is easier to which upper wall is smeared
It is flat；B component can control the hydration time of wet mixing mortar well, that is, be retained and be delayed, in the wet mixing mortar newly mixed, B component
It can be adsorbed on silicate granules surface, inhibit the digestion reaction of cement, when slurry gradually dries out, OH ion concentration liter therein
Height, B component are decomposed, and portland cement restores normal hydration reaction, B component can by the stable control of hydration time in 6-72h,
The quality for stablizing mortar, it is consistent to be allowed to the performance in transport, storage, work progress, and still keeping good in 12-24h makes
With performance, and mortar normal freezing after upper wall of constructing is hardened, and can accomplish not having to not do, instant hard；Preparation side of the invention
Method is simple, easy to use, it can be achieved that specialized, mechanization, large-scale production, and can be reduced mortar waste, and energy-saving and emission-reduction are green
Colour circle is protected.
Specific embodiment
The following is a clear and complete description of the technical scheme in the embodiments of the invention, it is clear that described embodiment
Only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
Art personnel all other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
Wet mixing mortar additive and preparation method thereof of the invention is explained combined with specific embodiments below.
Embodiment 1:
1, it is formulated (by weight ratio)
Mother liquor:
48 parts of bottom water；
8 parts of methyl allyl polyoxyethylene ether；
27 parts of sodium gluconate；
3 parts of lauryl sodium sulfate；
A material: 0.1 part of vitamin C, 2 parts of water；
B material: 0.5 part of ammonium persulfate, 5 parts of acrylic acid, 5 parts of water；
C material: 2 parts of hydrogen peroxide.
Component A:
40 parts of mother liquor, 60 parts of water and 0.15 part of hydroxypropyl methyl cellulose.
B component:
70 parts of liquid glucose acid sodium；6 parts of pulvis sodium gluconate；6 parts of white sugar；18 parts of water.
2, preparation method
The preparation method of component A:
(1) bottom water is first heated to 30 DEG C under stiring, then be added water-reducing agent monomer, continuously add sodium gluconate and
0.4-0.6 parts of lauryl sodium sulfate, stirs evenly；
(2) a material, b material and c material are prepared:
A material: vitamin C is dissolved into water and obtains a material；
B material: ammonium persulfate and acrylic acid are diluted with water to obtain b material；
C material: hydrogen peroxide is weighed stand-by.
(3) when the mixed liquor that step (1) is prepared being heated to 55 DEG C, prepared c material is added, temperature is then risen to 60
DEG C when be added a material, added after adding b material；
(4) step (3) prepare mixed liquor reaction temperature control at 70 DEG C hereinafter, simultaneously at this temperature keep the temperature 3 hours, protect
Circulating cooling or natural cooling can be taken after temperature, but must must ensure that insulating process is no less than 3 hours；
(5) by step (4) configuration mixed liquor circulating cooling or naturally cool to 30 DEG C, then be added 2-3 parts 12
Sodium alkyl sulfate stirs evenly to get mother liquor；
(6) in the water for being added to mother liquor, hydroxypropyl methyl cellulose is then added, is stirred evenly to get component A；
It is worth noting that: in above-mentioned insulating process, it not can be carried out circulating cooling in reaction kettle whipping process.Heat preservation
Afterwards if wanting moisturizing, moisturizing temperature must be controlled at 30 DEG C hereinafter, otherwise will cause gel, and entire product can be scrapped, and nothing
Method is got out from reaction kettle, causes serious quality accident.
It is also noteworthy that: it tries not to add water again after the completion of mother liquor, direct use is preferred.
The preparation method of B component: water is first added in agitator tank, then sequentially adds liquid glucose acid sodium, pulvis Portugal
Grape sodium saccharate and white sugar, stirring is to being completely dissolved to get B component.
Embodiment 2:
1, it is formulated (by weight ratio)
Mother liquor:
42 parts of bottom water；
6 parts of methyl allyl polyoxyethylene ether；
24 parts of sodium gluconate；
2.4 parts of lauryl sodium sulfate；
A material: 0.08 part of vitamin C, 1.5 parts of water；
B material: 0.4 part of ammonium persulfate, 4 parts of acrylic acid, 4 parts of water；
C material: 1.5 parts of hydrogen peroxide.
Component A:
30 parts of mother liquor, 50 parts of water and 0.1 part of hydroxypropyl methyl cellulose.
B component:
62 parts of liquid glucose acid sodium；8 parts of pulvis sodium gluconate；8 parts of white sugar；22 parts of water.
2, preparation method
A, the preparation method of B component is same as Example 1.
Embodiment 3:
1, it is formulated (by weight ratio)
Mother liquor:
54 parts of bottom water；
10 parts of methyl allyl polyoxyethylene ether；
30 parts of sodium gluconate；
3.6 parts of lauryl sodium sulfate；
A material: 0.12 part of vitamin C, 2.5 parts of water；
B material: 0.6 part of ammonium persulfate, 6 parts of acrylic acid, 6 parts of water；
C material: 2.5 parts of hydrogen peroxide.
Component A:
50 parts of mother liquor, 70 parts of water and 0.2 part of hydroxypropyl methyl cellulose.
B component:
82 parts of liquid glucose acid sodium；4 parts of pulvis sodium gluconate；4 parts of white sugar；10 parts of water.
2, preparation method
A, the preparation method of B component is same as Example 1.
Embodiment 4: the application of wet mixing mortar additive
Component A mainly adjusts the bulk density of mortar, and the component A of embodiment 1-3 is added in the production process of wet mixing mortar,
The performances such as workability, water-retaining property, caking property and splitting resistance for improving wet mixing mortar, B component are adjusted as wet mixing mortar
Agent is added in the production process of wet mixing mortar, for adjusting the open hour (wet mixing mortar presetting period) of wet mixing mortar.A,B
Component is formulated as follows wet mixing mortar respectively, while testing the properties of wet mixing mortar, the formula of wet mixing mortar and performance test
It the results are shown in Table 1.
The performance table of comparisons in wet mixing mortar is added in 1 difference A of table, B component
Show from the test result of table 1 compared to blank test and other company's additives (i.e. comparative test), the present invention
A, the addition of B component is remarkably improved the operating time of wet mixing mortar, and the operating time is stably controlled the range at 6-72 hours,
And it can ensure that and start to harden in 3-5 hours after wall dehydration on mortar；
The addition of A, B component of the present invention are remarkably improved the water retention of wet mixing mortar, and room temperature and water retention at 45 DEG C are equal
Reach 90% or more；
The bulk density of wet mixing mortar is adjusted in the addition of A, B component of the present invention, and in contrast, bulk density is lower, and with the time
Increase, changing bulk density trend of the invention do not have the big of comparative test；
The addition of A, B component of the present invention make wet mixing mortar have good toughness, and anti-current hung type is good, with comparative test phase
Than, 2h, 18h, significantly higher with the consistency of 48h for 24 hours, the consistency loss late of 2h is smaller；
The addition of A, B component of the present invention are remarkably improved the compression strength of wet mixing mortar, compared with comparative test, 7d, 28d
Compression strength increase significantly；
The addition of A, B component of the present invention can improve the frost resistance of wet mixing mortar, compared with comparative test, loss of strength rate
It is varied less with mass loss rate；The present invention can also be obviously improved the impermeability of wet mixing mortar, improve the durability of mortar.
From the above test results, it can be seen that each component content of A in embodiment 1, B component is optimum proportioning, it is added
It is best to each performance obtained in wet mixing mortar.It is adjusted according to sand gradation situation, component A, which is added in wet mixing mortar, mixes
Amount can be 4Kg/m3-8Kg/m3；Synthetic operation performance required according to the weather temperature at wet mixing mortar scene and construction site etc. because
Element is adjusted, and it can be 4Kg/m that B component, which is added to volume in wet mixing mortar,3-10Kg/m3。
By above specific embodiment and test data, wet mixing mortar additive of the invention has technology below excellent
Gesture:
(1) hydration time of wet mixing mortar, i.e. water conservation time and delay time are controlled.
(2) improve the workability, viscosity, the later strength for improving wet mixing mortar of wet mixing mortar.
(3) plasticity of wet mixing mortar is kept, it is easier to which upper wall smoothes out.
(4) stablize the quality of wet mixing mortar, it is consistent to be allowed to the performance in transport, storage, work progress, can be in 12-24h
Still keep good service performance.
(5) workability is good, and sag resistance is good, and normal freezing is hardened after the upper wall of mortar construction, instant hard without not doing.
(6) frost resistance, the anti-permeability performance that can improve wet mixing mortar, improve the durability of mortar.
(7) specialization, mechanization, large-scale production, closed dust-free handling storage and application can be achieved, greatly reduce mortar
Waste, energy-saving and emission-reduction are environmentally protective, improve the economic benefit of enterprise.
Each technical characteristic of embodiment described above can carry out any combination, for simplicity of description, not to above-mentioned implementation
The all possible combination of each technical characteristic in example is all described, as long as however, the combination of these technical characteristics is not present
Contradiction all should be considered as described in this specification.
Claims (9)
1. a kind of wet mixing mortar additive, including component A and B component, which is characterized in that component A by weight ratio includes:
30-50 parts of mother liquor, 50-70 parts of water and 0.1-0.2 parts of water-retaining agent, wherein mother liquor includes: 42-54 parts by weight ratio
Bottom water, 6-10 parts of water-reducing agent monomer, 24-30 parts of sodium gluconate, 2.4-3.6 parts of lauryl sodium sulfate, 0.08-
0.12 part of vitamin C, 0.4-0.6 parts of ammonium persulfate, 4-6 parts of acrylic acid, 1.5-2.5 parts of hydrogen peroxide and 5.5-8.5
The water of part；B component includes 62-:82 parts of liquid glucose acid sodium, 4-8 parts of pulvis sodium gluconate, 4-8 parts of white sugar and
10-22 parts of water.
2. wet mixing mortar additive according to claim 1, which is characterized in that the water-reducing agent monomer is methacrylic
Polyoxyethylene ether.
3. wet mixing mortar additive according to claim 1, which is characterized in that the water-retaining agent is hydroxypropyl methyl fiber
Element.
4. a kind of preparation method of wet mixing mortar additive described in claim 1, which is characterized in that the preparation method of component A
The following steps are included:
(1) raw material is weighed by weight ratio；
(2) bottom water is first heated to 30 DEG C under stiring, water-reducing agent monomer is then added, continuously adds sodium gluconate and 0.4-
0.6 part of lauryl sodium sulfate, stirs evenly；
(3) a material, b material and c material are prepared；
(4) when the mixed liquor that step (2) are prepared being heated to 55 DEG C, prepared c material is added, when temperature then being risen to 60 DEG C
A material is added, b material is added after adding；
(5) the mixed liquor reaction temperature that step (4) is prepared is controlled at 70 DEG C hereinafter, simultaneously keeping the temperature 3h at this temperature；
(6) mixed liquor that step (5) configure is cooled to 30 DEG C, 2-3 parts of lauryl sodium sulfate is then added, stirring is equal
It is even to get mother liquor；
(7) 30-50 parts of mother liquor is added in 50-70 parts of water, then adds 0.1-0.2 parts of hydroxypropyl methyl fiber
Element stirs evenly to get component A；
B component the preparation method comprises the following steps: first water is added in agitator tank, then sequentially add liquid glucose acid sodium, pulvis grape
Sodium saccharate and white sugar, stirring is to being completely dissolved to get B component.
5. the preparation method of wet mixing mortar additive according to claim 4, which is characterized in that a in the step (3)
Material obtains a material the preparation method comprises the following steps: vitamin C is dissolved into 1.5-2.5 parts of water.
6. the preparation method of wet mixing mortar additive according to claim 4, which is characterized in that b expects in the step (3)
Expect the preparation method comprises the following steps: ammonium persulfate and acrylic acid are diluted to obtain b with 4-6 parts of water.
7. the preparation method of wet mixing mortar additive according to claim 4, which is characterized in that c expects in the step (3)
The preparation method comprises the following steps: 1.5-2.5 parts of hydrogen peroxide is weighed stand-by.
8. the preparation method of wet mixing mortar additive according to claim 4, which is characterized in that in the step (6)
The type of cooling can be natural cooling or circulating cooling.
9. a kind of application method using wet mixing mortar additive made from any method of claim 1-8, the wet-mixing sand
The volume for starching additive A component is 4Kg/m3-8Kg/m3, the volume of B component is 4Kg/m3-10Kg/m3。
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111348860A (en) * | 2020-03-11 | 2020-06-30 | 四川津宏康泰新材料有限公司 | Preparation method of wet-mixed mortar additive |
| CN115838255A (en) * | 2023-02-15 | 2023-03-24 | 山东大元实业股份有限公司 | High-performance plastic-retaining mortar additive and preparation method thereof |
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| CN106348638A (en) * | 2016-08-23 | 2017-01-25 | 中建西部建设西南有限公司 | Additive for maintaining construction performance of wet mixing mortar and preparation method thereof |
| CN108328959A (en) * | 2018-02-11 | 2018-07-27 | 张玉广 | A kind of three high mother liquor of polycarboxylic acids and its manufacturing method |
| CN109293274A (en) * | 2018-09-29 | 2019-02-01 | 莱芜市易和环保科技有限公司 | A kind of wet mixing mortar special additive and preparation method thereof |
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| CN105601158A (en) * | 2015-12-24 | 2016-05-25 | 湖南中岩建材科技有限公司 | Mortar additive |
| CN106348638A (en) * | 2016-08-23 | 2017-01-25 | 中建西部建设西南有限公司 | Additive for maintaining construction performance of wet mixing mortar and preparation method thereof |
| CN108328959A (en) * | 2018-02-11 | 2018-07-27 | 张玉广 | A kind of three high mother liquor of polycarboxylic acids and its manufacturing method |
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| CN111348860A (en) * | 2020-03-11 | 2020-06-30 | 四川津宏康泰新材料有限公司 | Preparation method of wet-mixed mortar additive |
| CN115838255A (en) * | 2023-02-15 | 2023-03-24 | 山东大元实业股份有限公司 | High-performance plastic-retaining mortar additive and preparation method thereof |
| CN115838255B (en) * | 2023-02-15 | 2023-04-28 | 山东大元实业股份有限公司 | High-performance plastic-retaining mortar additive and preparation method thereof |
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| CN110510912B (en) | 2021-12-14 |
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