CN109293274A - A kind of wet mixing mortar special additive and preparation method thereof - Google Patents
A kind of wet mixing mortar special additive and preparation method thereof Download PDFInfo
- Publication number
- CN109293274A CN109293274A CN201811143596.5A CN201811143596A CN109293274A CN 109293274 A CN109293274 A CN 109293274A CN 201811143596 A CN201811143596 A CN 201811143596A CN 109293274 A CN109293274 A CN 109293274A
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- parts
- agent
- wet mixing
- mixing mortar
- special additive
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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
Abstract
It is dedicated additional that the present invention provides a kind of wet mixing mortar, include following component: polycarboxylate water-reducer, polycarboxylic acid slump retaining agent adjust glutinous agent, thickener, air entraining agent, retarder, preservative and bio-modification agent, the present invention also provides a kind of production methods of wet mixing mortar special additive, compared with prior art, the present invention has the advantages that compounding wet mixing mortar additive using bio-modification technology for the first time, meet wet mixing mortar performance and environmentally protective construction requirement, it ensure that wet mixing mortar quality is stablized, improve the later strength and seepage-resistant grade of wet mixing mortar.
Description
Technical field
The present invention relates to the preparation fields of wet mixing mortar, more particularly to one kind for wet mixing mortar construction special additive
And preparation method thereof, obtained additive is suitable for the construction of wet mixing mortar.
Background technique
Wet mixing mortar is by being transported to after cement, fine aggregate, mineral admixture, additive and water by a certain percentage mix
Job location, and the mixture used within a certain period of time.And additive used in wet mixing mortar is to guarantee wet mixing mortar
The working performances such as workability, water-retaining property and durability with higher.
Wet mixing mortar special additive on the market has pulvis and aqua now, and pulvis needs now to mix at the construction field (site) now
With causing great energy consumption and cost of labor and increase, while also causing environmental pollution.Aqua additive overcomes pulvis
The disadvantages mentioned above of additive, still, there is also some disadvantages for aqua wet mixing mortar additive itself, such as: liquid additive
Storage time is short, apt to deteriorate, is also easy to produce precipitating etc..
The purpose of this product research and development is to develop a kind of wet mixing mortar special additive, widens the adaptation of wet mixing mortar special additive
Property.This product using bio-modification technology compound wet mixing mortar additive, ensure that wet mixing mortar additive storage time and
Quality is stablized, and the function of wet mixing mortar microcrack selfreparing has been reached, and improves the later strength of wet mixing mortar, crack resistance and anti-
Grade is seeped, wet mixing mortar working performance and environmentally protective construction requirement are met.
Summary of the invention
In order to overcome the problems of the prior art, the present invention provides a kind of wet mixing mortar special additive and its preparation sides
Method, the additive storage time is long, is unlikely to deteriorate, and precipitating will not be generated for a long time by placing；The additive is used for wet mixing mortar,
The workability, water-retaining property and durability that wet mixing mortar can be effectively improved guarantee the hardening strength of wet mixing mortar, easy for construction, peace
Loopful is protected.
In order to solve the above technical problems, the present invention provides a kind of wet mixing mortar special additive, it include following mass fraction
Component: polycarboxylate water-reducer and slump retaining agent: 5-12 parts, adjust glutinous agent: 5-10 parts, thickener: 0.5-1 parts, air entraining agent: 0.5-
1.5 parts, retarder: 5-10 parts, preservative: 0.02-0.06 parts, bio-modification agent: 0.002-0.006 parts, water: 65.4-83.9
Part.
Preferably, the wet mixing mortar special additive includes the component of following mass fraction: polycarboxylate water-reducer: 8-10
Part adjusts glutinous agent: 8-9 parts, thickener: 0.7-1 parts, air entraining agent: 0.8-1 parts, retarder: 7-8 parts, preservative: 0.03-0.05
Part, bio-modification agent: 0.003-0.005 parts, water: 70.95-75.47 parts.
It is further preferred that the wet mixing mortar special additive consists of the following components in percentage by weight: polycarboxylic acids
Water-reducing agent: 4.5 parts, slump retaining agent: 4.5 parts, the glutinous agent of tune: 9 parts, thickener: 0.8 part, air entraining agent: 0.8 part, retarder: 7.5 parts,
Preservative: 0.04 part, bio-modification agent: 0.004 part, water: 72.4 parts.
Preferably, the water-reducing agent is polycarboxylic acids dehydragent and slump retaining agent, mass ratio 1:1.
Preferably, the tune sticks agent the preparation method is as follows: polyether macromonomer (relative molecular mass is added in reaction kettle
2800-3300), A material and B material are added dropwise in reaction kettle by ammonium persulfate, mass ratio 12:1, each to be added dropwise 2-3 hours, A material
It is made of mercaptopropionic acid, vitamin C and water 4:1:8 in mass ratio, B expects by acrylic acid, acrylamide and water 4:1:3 in mass ratio
Composition, after being added dropwise to complete, keep the temperature 1 hour to get.
Preferably, the thickener is at least one of cellulose ether, maltodextrin, starch and pectin.
Preferably, the retarder is one of white sugar, sodium citrate, sodium gluconate.
Preferably, the air entraining agent is one in dodecyl sodium sulfate, neopelex and triterpenoid saponin
Kind.
Preferably, the preservative is at least one of sodium benzoate, Kathon CG and tri-potassium phosphate；The biology changes
Property agent be at least one of glucoamylase, phosphatase, urase.
It, can fine fisssure to be generated in repairing mortar tests prove that bio-modification agent has the function of micro-crack selfreparing
Line.Calcium ion in bio-modification agent energy chelating hardened mortar, the carbon dioxide absorbed in air form calcium carbonate, insert fine fisssure
In seam, reach the multiple effect that micro-crack is reviewed one's lessons by oneself.
The present invention also provides a kind of preparation methods of wet mixing mortar special additive, comprising the following steps:
(1) first certain water is added in reaction kettle, polycarboxylate water-reducer, polycarboxylic acid slump retaining agent is added and glutinous agent is adjusted sufficiently to dissolve
Uniformly；
(2) thickener and retarder are added, stirring 2 hours is to uniform；
(3) preservative and bio-modification agent is then added, stirs 1 hour；
(4) finally, air entraining agent is added, it is uniform to solution to continue stirring.
The beneficial effects of the present invention are:
(1) a kind of wet mixing mortar special additive of the invention compounds wet mixing mortar additive using bio-modification technology for the first time,
Additive is placed not generate to precipitate for a long time and is also unlikely to deteriorate, and ensure that the storage time of wet mixing mortar additive and quality are steady
It is fixed, while bio-modification agent also has the function of repairing the micro-crack of concrete；
(2) adjust glutinous agent and the incorporation of thickener that the water retention of wet mixing mortar is made to reach 95 parts or more, and the open hour of mortar prolong
Length improved the later strength and seepage-resistant grade of wet mixing mortar, and met wet mixing mortar working performance and green to 46-48 hours
The construction requirement of environmental protection.
Specific embodiment
The following examples can make professional and technical personnel that the present invention be more fully understood, but therefore not send out this
It is bright to be limited among the embodiment described range.
Embodiment 1
The present embodiment wet mixing mortar special additive, the wet mixing mortar special additive are grouped by the group of following mass parts
At: polycarboxylate water-reducer: 6 parts, slump retaining agent: 6 parts, the glutinous agent of tune: 10 parts, thickener: 1 part, air entraining agent: 1.5 parts, retarder: 10
Part, preservative: 0.06 part, bio-modification agent: 0.006 part, water: 65.4 parts.
Embodiment 2
The present embodiment wet mixing mortar special additive, the wet mixing mortar special additive are grouped by the group of following mass parts
At: polycarboxylate water-reducer: 2.5 parts, slump retaining agent: 2.5 parts, the glutinous agent of tune: 5 parts, thickener: 0.5 part, air entraining agent: 0.5 part, slow setting
Agent: 5 parts, preservative: 0.02 part, bio-modification agent: 0.002 part, water: 83.9 parts.
Embodiment 3
The present embodiment wet mixing mortar special additive, the wet mixing mortar special additive are grouped by the group of following mass parts
At: polycarboxylate water-reducer: 4 parts, slump retaining agent: 4 parts, the glutinous agent of tune: 8 parts, thickener: 0.7 part, air entraining agent: 0.8 part, retarder: 7
Part, preservative: 0.03 part, bio-modification agent: 0.003 part, water: 75.47 parts.
Embodiment 4
The present embodiment wet mixing mortar special additive, the wet mixing mortar special additive are grouped by the group of following mass parts
At polycarboxylate water-reducer: 5 parts, slump retaining agent: 5 parts, adjust glutinous agent: 9 parts, thickener: 1 part, air entraining agent: 1 part, retarder: 8 parts, anti-
Rotten agent: 0.05 part, bio-modification agent: 0.005 part, water: 70.95 parts.
Embodiment 5
The present embodiment wet mixing mortar special additive, the wet mixing mortar special additive are grouped by the group of following mass parts
At: polycarboxylate water-reducer: 4.5 parts, slump retaining agent: 4.5 parts, the glutinous agent of tune: 9 parts, thickener: 0.8 part, air entraining agent: 0.8 part, slow setting
Agent: 7.5 parts, preservative: 0.04 part, bio-modification agent: 0.004 part, water: 72.4 parts.
Performance test:
According to embodiment 1-5 preparation for preparing the special additive of wet mixing mortar, according to GB/T25181-2010 " pre- sand cutting
Slurry " experiment condition carry out mortar initial consistency, delamination degree, compression strength, the test of setting time and air content.
Slurry component used in this test are as follows: cement, sand, wet mixing mortar special additive and water.Wet mixing mortar ingredient
Table is as shown in table 1.Five examples and benchmark example of the invention are used for the performance test of live wet mixing mortar match ratio, as shown in table 2.
1 benchmark example of table, the proportion of embodiment and comparative example wet mixing mortar
The performance test of table 2 benchmark example, embodiment and comparative example wet mixing mortar
Note: comparative example * is is sold wet mixing mortar additive on the market.
Five embodiment storage time tests of the present invention, as shown in table 3:
Table 3:
| Test method | Comparative example * | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 |
| Whether storage is layered for 1 month | It is no | It is no | It is no | It is no | It is no | It is no |
| Whether storage is layered for 3 months | Slight layering | It is no | It is no | It is no | It is no | It is no |
| Whether storage is layered for 6 months | Severe delamination | It is no | It is no | It is no | It is no | It is no |
For 6 months correlation datas, embodiment 1-4 suggestion was all changed to "No", if the ratio of bio-modification agent is " 0.004 "
Shi Xiaoguo is best, to provide reasonable reason.
Table 2 is it can be seen that be significantly better than that base mixed with every Testing index of the mortar of wet mixing mortar additive of the present invention
Quasi- example and comparative example, the water retention of gained mortar is high, the open hour are long, caking property is good, and excellent combination property, easy for construction,
Safety and environmental protection is suitable for popularization and application.
Table 3 can be obviously improved the storage of wet mixing mortar special additive it can be seen that addition bio-modification agent and preservative
Sustainability energy improves the crack resistance and seepage-resistant grade of mortar.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to be said using the present invention
Equivalent structure or equivalent flow shift made by bright book content is applied directly or indirectly in other relevant technical fields,
Similarly it is included within the scope of the present invention.
Claims (10)
1. a kind of wet mixing mortar special additive, it is characterised in that: the component comprising following mass fraction: polycarboxylate water-reducer and
Slump retaining agent: 5-12 parts, adjust glutinous agent: 5-10 part, thickener: 0.5-1 parts, air entraining agent: 0.5-1.5 parts, retarder: 5-10 parts, prevent
Rotten agent: 0.02-0.06 parts, bio-modification agent: 0.002-0.006 parts, water: 65.4-83.9 parts.
2. wet mixing mortar special additive according to claim 1, it is characterised in that: the wet mixing mortar special additive packet
Component containing following mass fraction: polycarboxylate water-reducer: 8-10 parts, the glutinous agent of tune: 8-9 parts, thickener: 0.7-1 parts, air entraining agent:
0.8-1 parts, retarder: 7-8 parts, preservative: 0.03-0.05 parts, bio-modification agent: 0.003-0.005 parts, water: 70.95-
75.47 parts.
3. wet mixing mortar special additive according to claim 2, it is characterised in that: the wet mixing mortar special additive by
Following components in percentage by weight composition: polycarboxylate water-reducer: 4.5 parts, slump retaining agent: 4.5 parts, the glutinous agent of tune: 9 parts, thickener:
0.8 part, air entraining agent: 0.8 part, retarder: 7.5 parts, preservative: 0.04 part, bio-modification agent: 0.004 part, water: 72.4 parts.
4. any one of -3 wet mixing mortar special additive according to claim 1, it is characterised in that: the water-reducing agent is poly-
Carboxylic acid type water reducing agent and slump retaining agent, mass ratio 1:1.
5. any one of -3 wet mixing mortar special additive according to claim 1, it is characterised in that: the tune sticks agent preparation
Method is as follows: polyether macromonomer, ammonium persulfate being added in reaction kettle, A material and B material are added dropwise to anti-by mass ratio 12:1
Answer in kettle, each to be added dropwise 2-3 hour, A material is made of mercaptopropionic acid, vitamin C and water 4:1:8 in mass ratio, B expect by acrylic acid,
Acrylamide and water 4:1:3 in mass ratio composition, after being added dropwise to complete, keep the temperature 1 hour to get.
6. any one of -3 wet mixing mortar special additive according to claim 1, it is characterised in that: the thickener is fibre
Tie up at least one of plain ether, maltodextrin, starch and pectin.
7. any one of -3 wet mixing mortar special additive according to claim 1, it is characterised in that: the retarder is white
One of sugar, sodium citrate, sodium gluconate.
8. any one of -3 wet mixing mortar special additive according to claim 1, it is characterised in that: the air entraining agent is ten
One of dialkyl sulfonates, neopelex and triterpenoid saponin.
9. any one of -3 wet mixing mortar special additive according to claim 1, it is characterised in that: the preservative is benzene
At least one of sodium formate, Kathon CG and tri-potassium phosphate；The bio-modification agent is glucoamy-lases, in phosphatase, urase
At least one.
10. any one of -3 wet mixing mortar special additive according to claim 1, it is characterised in that: preparation method includes
Following steps:
(1) first certain water is added in reaction kettle, polycarboxylate water-reducer, polycarboxylic acid slump retaining agent is added and glutinous agent is adjusted sufficiently to dissolve
Uniformly；
(2) thickener and retarder are added, stirring 2 hours is to uniform；
(3) preservative and bio-modification agent is then added, stirs 1 hour；
(4) finally, air entraining agent is added, it is uniform to solution to continue stirring.
Priority Applications (1)
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| CN201811143596.5A CN109293274A (en) | 2018-09-29 | 2018-09-29 | A kind of wet mixing mortar special additive and preparation method thereof |
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| CN201811143596.5A CN109293274A (en) | 2018-09-29 | 2018-09-29 | A kind of wet mixing mortar special additive and preparation method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110066136A (en) * | 2019-05-05 | 2019-07-30 | 杭州临安引力外加剂有限公司 | A kind of preparation method of environment-friendly type aqueous wet mixing mortar modifying agent |
| CN110510912A (en) * | 2019-09-30 | 2019-11-29 | 湖南格林朗科技有限公司 | A kind of wet mixing mortar additive and preparation method thereof |
| 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 |
| CN111943622A (en) * | 2020-08-12 | 2020-11-17 | 重庆富皇建筑工业化制品有限公司 | Full-machine-made sand wet-mixed mortar and processing method thereof |
| CN112521048A (en) * | 2020-12-07 | 2021-03-19 | 安徽瑞和新材料有限公司 | Formaldehyde-free anti-corrosion and sterilization composition for polycarboxylic acid water reducing agent and preparation method thereof |
| CN115321872A (en) * | 2022-06-22 | 2022-11-11 | 桂林理工大学 | Wet-mixed mortar additive and preparation method and application thereof |
| CN115872659A (en) * | 2022-12-27 | 2023-03-31 | 沈阳泰丰特种混凝土有限公司 | Additive for prolonging opening time of ready-mixed mortar and mortar preparation method |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110066136A (en) * | 2019-05-05 | 2019-07-30 | 杭州临安引力外加剂有限公司 | A kind of preparation method of environment-friendly type aqueous wet mixing mortar modifying agent |
| CN110510912A (en) * | 2019-09-30 | 2019-11-29 | 湖南格林朗科技有限公司 | A kind of wet mixing mortar additive and preparation method thereof |
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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 |
| CN111943622A (en) * | 2020-08-12 | 2020-11-17 | 重庆富皇建筑工业化制品有限公司 | Full-machine-made sand wet-mixed mortar and processing method thereof |
| CN112521048A (en) * | 2020-12-07 | 2021-03-19 | 安徽瑞和新材料有限公司 | Formaldehyde-free anti-corrosion and sterilization composition for polycarboxylic acid water reducing agent and preparation method thereof |
| CN112521048B (en) * | 2020-12-07 | 2022-03-08 | 安徽瑞和新材料有限公司 | Formaldehyde-free anti-corrosion and sterilization composition for polycarboxylic acid water reducing agent and preparation method thereof |
| CN115321872A (en) * | 2022-06-22 | 2022-11-11 | 桂林理工大学 | Wet-mixed mortar additive and preparation method and application thereof |
| CN115872659A (en) * | 2022-12-27 | 2023-03-31 | 沈阳泰丰特种混凝土有限公司 | Additive for prolonging opening time of ready-mixed mortar and mortar preparation method |
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Address after: West Grange village 271100 Shandong province Laiwu steel Lixin Street Office Applicant after: Shandong Yihe Environmental Protection Technology Co.,Ltd. Address before: West Grange village 271100 Shandong province Laiwu steel Lixin Street Office Applicant before: LAIWU YIHE ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. |
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Inventor after: Liu Yongheng Inventor after: Li Deliang Inventor after: Zhao Hui Inventor after: Liu Ruhai Inventor after: Zhang Siqiang Inventor after: Lu Zhen Tao Inventor after: Zheng Fengsheng Inventor after: Cao Jikang Inventor after: Gao Shuxing Inventor before: Li Deliang Inventor before: Zhao Hui Inventor before: Liu Ruhai Inventor before: Liu Yongheng Inventor before: Zhang Siqiang Inventor before: Lu Zhen Tao Inventor before: Zheng Fengsheng Inventor before: Cao Jikang Inventor before: Gao Shuxing |
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Application publication date: 20190201 |