CN105948561A - Wet-mixed mortar additive - Google Patents
Wet-mixed mortar additive Download PDFInfo
- Publication number
- CN105948561A CN105948561A CN201610263642.XA CN201610263642A CN105948561A CN 105948561 A CN105948561 A CN 105948561A CN 201610263642 A CN201610263642 A CN 201610263642A CN 105948561 A CN105948561 A CN 105948561A
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- Prior art keywords
- sodium
- wet mixing
- mortar
- mortar additive
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention provides a wet-mixed mortar additive. The additive has low cost, can be added in an autoweighing manner, is used for wet-mixed mortar, and has good water-retaining property and delamination degree of mortar, less loss in the range of open time, high adhesive strength, and good construction workability. The wet-mixed mortar additive includes: by mass, sodium polyacrylate 5%-15%, air entraining agent 5%-15%, cellulose ethers thickening water-retaining agent 10%-20%, sodium alginate 5%-10%, polyoxyethylene 3%-10%, retarder 5%-20%, xanthan gum 3%-8%, and the balance maltodextrin, wherein the molecular weight of sodium polyacrylate is more than 30 million, and the molecular weight of polyoxyethylene is more than 2.5 million. The wet-mixed mortar additive is powder, and the mixing amount is 0.05%-0.10% of mortar gel material using amount. The wet-mixed mortar additive can be dissolved in water, and can be diluted to a liquid with concentration of 1.5%-2.0% at mixing plant site to be added in an autoweighing manner.
Description
Technical field
The present invention relates to a kind of wet mixing mortar additive, belong to building mortar material field.
Background technology
Building mortar includes masonry mortar and decorative mortar, and according to the mode of production of mortar, premixing mortar can quilt
It is divided into wet mixing mortar and the big class of dry-mixed mortar two.Wherein wet mixing mortar is by cement, mineral admixture, thin bone
Material, additive and water and according to the various components that workability determines, according to the difference of grade of mortar, press
Certain proportion, at mixing plant after metering, mixing, uses agitator truck to be transported to place to use, puts into specially
Store by container cell, and use complete mixture at the appointed time.
The topmost technical characteristic of construction requirement wet mixing mortar is good water-retaining property, higher bonding force and good
Good construction workability.The holding capacity of the workability (referring mainly to denseness, air content) of wet mixing mortar is the heaviest
Want, and the index characterizing this ability is referred to as the mortar open hour.
Wet mixing mortar has a following remarkable advantage: 1) wet mixing mortar is after Concrete Mixing Station is directly produced,
Transport to building site i.e. can be used directly, be not required to reprocessing, but mortar should be stored in airtight mortar container cell；2)
Wet mixing mortar has been prepared in professional production factory, beneficially the control of mortar quality and guarantee；3) former material
Material choice is relatively big, and the fine sand that gathers materials can use siccative, it is possible to uses wet feed, and is not required to dry, compares dry
Mortar not only decreases atmospheric pollution but also can reduce cost；The industry such as flyash, agstone can be mixed in a large number
Waste residue, and use the machine-made sand of the general industry solid waste such as slag, industrial tailings manufacture, i.e.
Can economize on resources, mortar cost can be reduced again；4) job site environment is good, does not has dust pollution.Just because of
The above-mentioned the most significantly advantage of wet mixing mortar, from the point of view of environmental angle, wet mixing mortar may replace most dry
Mixing cement mortar.
At present, what the additive of dry-mixed mortar and part wet mixing mortar was commonly used is polymer dispersion powder, each
The bodywoods such as class methyl cellulose ether, air entraining agent, polycarboxylic acid and naphthalene water reducer, organic-inorganic reinforcing agent
Material.There is cost height in known multiple wet mixing mortar additive, coursing degree of mortar damaged in the range of the open hour
Mistake is relatively big, mortar air content gradual loss causes greatly construction workability to decline.
Summary of the invention
Goal of the invention
It is an object of the invention to provide a kind of wet mixing mortar additive, cost is relatively low, for wet mixing mortar, tool
Have good water-retaining property, coursing degree of mortar lose in the range of the open hour little, bonding force is higher, construction workability
Good advantage.
Summary of the invention
The invention provides a kind of wet mixing mortar additive, mass percent composition is as follows: sodium polyacrylate
5%-15%, air entraining agent 5%-15%, cellulose ethers thickening water-retaining agent 10%-20%, sodium alginate 5%-10%,
Polyethylene glycol oxide 3%-10%, retarder 5%-20%, xanthan gum 3%-8%, surplus is maltodextrin, wherein,
Sodium polyacrylate molecular weight is more than 30,000,000, and the molecular weight of polyethylene glycol oxide is more than 2,500,000.
Preferably, the mass percent of described wet mixing mortar additive consists of: sodium polyacrylate 10%-15%,
Air entraining agent 10%-15%, cellulose ethers thickening water-retaining agent 12%-20%, sodium alginate 5%-10%, polyoxygenated
Ethylene 5%-10%, retarder 10%-20%, xanthan gum 5%-8%, surplus is maltodextrin.
Described air entraining agent selects the routine material as air entraining agent of this area.Preferably, described air entraining agent
For at least one in sodium abietate or triterpenoid saponin or sodium lauryl sulfate, more preferably sodium abietate, triterpene
The mass ratio of Saponin and sodium lauryl sulfate is (1-2): (1-2): the mixture of 1.
Preferably, described cellulose ethers thickening water-retaining agent is methylcellulose, carboxymethyl cellulose, ethoxy
At least one in cellulose or modified hydroxypropyl methyl cellulose.It is furthermore preferred that described cellulose ethers thickening
Water-retaining agent be methoxyl content be the modified hydroxypropyl methyl cellulose of 10%-30%, to improve hydrophilic, cold water
Rate of dissolution.
The conventional material as retarder in this area selected by described retarder, does not include having deferred action
Other additives, as having some kind water reducer etc. of certain deferred action.Preferably, described retarder is
The quality of at least one in white sugar, sodium citrate or sodium gluconate, more preferably white sugar and sodium gluconate
Than being (1-3): the mixture of 1.
Wherein, sodium polyacrylate has an effect of dispersion, water-keeping thickening, and sodium alginate, polyethylene glycol oxide,
Xanthan gum supplies good water-retaining property for mortar lifting together with maltodextrin, and maltodextrin is easily soluble in water to be had necessarily
Complementary slow setting and water retention, simultaneously as the compounding carrier of mortar additive product；Air entraining agent can carry
The workability of high mortar, also has certain effect to water-retaining property；Retarder is used for ensureing enough mortar open hour,
Being easy to construction and ensure quality, concrete kind and consumption can be determined according to the requirement of mortar open hour and adjust
Whole.
Described wet mixing mortar additive preparation method is simple, by each component mix homogeneously according to a conventional method.
Wet mixing mortar additive of the present invention is powder body, and volume is mortar gel material consumption
0.05%-0.10%, cost is relatively low, and it is dissolvable in water water, and mixing plant scene can be diluted to 1.5%-2.0% concentration
Liquid carries out automatic gauge interpolation, singly mixes, it is not necessary to secondary adds, safe and reliable, easy to use.Use described
The mortar of additive have good water-retaining property, coursing degree of mortar lose in the range of the open hour little, bonding force is higher,
The advantage that construction workability is good.
Detailed description of the invention
Explain below in conjunction with the embodiments.
Raw material used by following example is as follows:
Sodium polyacrylate, molecular weight is more than 30,000,000, and powder body, Shandong Taihe Water Treatment Co., Ltd. produces.
Sodium abietate, powder body, Zhengzhou three chemical building material company limited produces.
Triterpenoid saponin, powder body, Zhejiang Jiu Sheng Folium Camelliae sinensis Development Co., Ltd produces.
Sodium lauryl sulfate, powder body, Sinolight Chemical Co., Ltd. produces.
Modified hydroxypropyl methyl cellulose MK60, powder body, Henan Tian He new material company limited produces, methoxy
Base content (27%-30%).
Sodium alginate, powder body, Lianyun Harbour global Sargassum auxiliary agent company limited produces.
Polyethylene glycol oxide (PEO), molecular weight is more than 2,500,000, and powder body, Shanghai Hui Jin Chemical Co., Ltd. is raw
Produce.
White sugar, powder body, Guangxi land reclamation and cultivation candy companies produces.
Sodium gluconate, powder body, Shanggao County, Jiangxi Province Jin Yang food science and technology company limited produces.
Xanthan gum, powder body, Fu Feng group of Junan, Shandong Province county produces.
Maltodextrin, powder body, Zhucheng Dongxiao Biotechnology Co., Ltd. of Shandong Province produces.
The mass percent composition of wet mixing mortar additive described in embodiment 1-6 is as shown in table 1.Wherein: fiber
Element ether is modified hydroxypropyl methyl cellulose；Air entraining agent is sodium abietate, triterpenoid saponin and sodium lauryl sulfate etc.
Mass ratio is the mixture of 1: 1: 1；Retarder be the mass ratio such as white sugar and sodium gluconate be the mixture of 2: 1.
Table 1
Remarks: in embodiment retarder content number, according to local mean temperature, can be suitable according to season
Adjusting, in general suitably add summer, winter suitably reduces, and spring and autumn, season, volume was moderate.Mortar is opened
Putting the time (or time of available operation construction) can be concrete according to construction technology at that time, weather, temperature etc.
Situation, meets construction requirement by the suitably increase and decrease of the volume of wet mixing mortar additive.
The mortar mix ratio of following Application Example 1-3 is shown in Table 2.Wherein, cement is 42.5 grades of normal silicates
Cement, Carnis Rapanae thomasianae Cement Group Chinese cement factory produces；Flyash is two grades of ashes, and Huaneng Group company Nanjing Power Plant produces；
The Changjiang river medium sand, modulus of fineness Mx is 2.3-2.5, and sand maximum particle diameter is less than 4.75mm, and water is clean
Subsoil water.Units/kg/m3。
Table 2
| Sequence number | Strength grade | Cement | Flyash | Dry sand | Water | Additive (1.5% concentration) |
| Application Example 1 | M5 | 140 | 200 | 1350 | 200-220 | 10-20 |
| Application Example 2 | M7.5 | 170 | 180 | 1350 | 200-220 | 10-20 |
| Application Example 3 | M10 | 200 | 150 | 1350 | 200-220 | 10-20 |
Remarks: the sand in cement mortar ratio is surface drying sand, if containing moisture, should deducting surface in sand and contain during production
The water yield.The fine-tuning 10-20kg/m of mortar water consumption3, make consistency of mortar dispatch from the factory at 70-100mm.Owing to dispatching from the factory
Wet mixing mortar, in trucd mixer transportation, understands continuous low rate mixing, brings unnecessary air into, therefore to construction work
During ground, the denseness of mortar can somewhat increase 10-20mm with the prolongation of stirring haulage time.
Application Example 1
According to premixing mortar standard GB/T/T25181-2010, building mortar basic performance tests method standard
JGJ/T70-2009 and premixing mortar application technology code JGJ/T223-2010, embodiment of the present invention gained additive
It is diluted to 1.5% concentration, according to 15kg/m3Volume, as the commercially available prod of comparison, powder body, is diluted to 1.5%
Concentration, volume 15kg/m3, wet mixing mortar is carried out performance test.Testing result is shown in Table 3.
Table 3
Application Example 2
According to premixing mortar standard GB/T/T25181-2010, building mortar basic performance tests method standard
JGJ/T70-2009 and premixing mortar application technology code JGJ/T223-2010, additive of the present invention is according to 15
kg/m3Volume, as the commercially available prod of comparison, powder body, is diluted to 1.5% concentration, volume 15kg/m3, right
Wet mixing mortar carries out test performance.Testing result is shown in Table 4.
Table 4
Application Example 3
According to premixing mortar standard GB/T/T25181-2010, building mortar basic performance tests method standard
JGJ/T70-2009 and premixing mortar application technology code JGJ/T223-2010, additive of the present invention is according to 15
kg/m3Volume, as the commercially available prod of comparison, powder body, is diluted to 1.5% concentration, volume 15kg/m3, right
Wet mixing mortar carries out test performance.Testing result is shown in Table 5.
Table 5
By data above it can also be seen that, wet mixing mortar additive of the present invention has preferable performance, Ke Yiman
The needs of foot engineering construction.Owing to being singly to mix additive, use the easiest, it is only necessary to by dilute for powder body additive
It is interpreted as 1.5%-2% aqueous solution and can realize automatic gauge, safe and reliable, easy to use.
Claims (8)
1. a wet mixing mortar additive, it is characterised in that mass percent composition is as follows: sodium polyacrylate
5%-15%, air entraining agent 5%-15%, cellulose ethers thickening water-retaining agent 10%-20%, sodium alginate 5%-10%,
Polyethylene glycol oxide 3%-10%, retarder 5%-20%, xanthan gum 3%-8%, surplus is maltodextrin, wherein,
Sodium polyacrylate molecular weight is more than 30,000,000, and the molecular weight of polyethylene glycol oxide is more than 2,500,000.
2. wet mixing mortar additive as claimed in claim 1, it is characterised in that described wet mixing mortar additive
Mass percent consist of: sodium polyacrylate 10%-15%, air entraining agent 10%-15%, cellulose ethers increase
Thick water-retaining agent 12%-20%, sodium alginate 5%-10%, polyethylene glycol oxide 5%-10%, retarder 10%-20%,
Xanthan gum 5%-8%, surplus is maltodextrin.
3. wet mixing mortar additive as claimed in claim 1 or 2, it is characterised in that described air entraining agent is pine
At least one in fragrant acid sodium, triterpenoid saponin or sodium lauryl sulfate.
4. wet mixing mortar additive as claimed in claim 3, it is characterised in that described air entraining agent is rosin acid
The mass ratio of sodium, triterpenoid saponin and sodium lauryl sulfate is (1-2): (1-2): the mixture of 1.
5. wet mixing mortar additive as claimed in claim 1 or 2, it is characterised in that described cellulose ethers
Thickening water-retaining agent is methylcellulose, carboxymethyl cellulose, hydroxyethyl cellulose or modified hydroxypropyl methyl fiber
At least one in element.
6. wet mixing mortar additive as claimed in claim 5, it is characterised in that described cellulose ethers thickening
Water-retaining agent be methoxyl content be the modified hydroxypropyl methyl cellulose of 10%-30%.
7. wet mixing mortar additive as claimed in claim 1 or 2, it is characterised in that described retarder is white
At least one in sugar, sodium citrate or sodium gluconate.
8. wet mixing mortar additive as claimed in claim 7, it is characterised in that described retarder be white sugar and
The mass ratio of sodium gluconate is (1-3): the mixture of 1.
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| CN201610263642.XA CN105948561A (en) | 2016-04-21 | 2016-04-21 | Wet-mixed mortar additive |
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| CN201610263642.XA CN105948561A (en) | 2016-04-21 | 2016-04-21 | Wet-mixed mortar additive |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106747192A (en) * | 2016-12-16 | 2017-05-31 | 广州市盈坚建材科技发展有限公司 | A kind of wet mixing mortar of resistance to compression moisturizing and preparation method thereof |
| CN106904865A (en) * | 2017-03-02 | 2017-06-30 | 安徽鑫固环保股份有限公司 | A kind of wet mixing mortar additive and preparation method thereof |
| CN107555833A (en) * | 2017-08-29 | 2018-01-09 | 南通成山高分子材料有限公司 | A kind of wet mixing mortar additive |
| CN107572862A (en) * | 2017-08-29 | 2018-01-12 | 南通成山高分子材料有限公司 | A kind of preparation technology of wet mixing mortar additive |
| CN107686301A (en) * | 2017-08-04 | 2018-02-13 | 吉林鹏霖混凝土有限公司 | A kind of wet mixing mortar and preparation method thereof |
| CN107973541A (en) * | 2016-10-21 | 2018-05-01 | 常州大正恒固建材有限公司 | Height bonds the low pumping type wet mixing mortar that drops and surely moulds agent and preparation method thereof with liquid |
| CN107986668A (en) * | 2017-11-10 | 2018-05-04 | 杭州临安引力外加剂有限公司 | A kind of wet mixing mortar additive and preparation method thereof |
| CN107986671A (en) * | 2017-12-08 | 2018-05-04 | 江苏苏博特新材料股份有限公司 | A kind of low rebound, anti-corrosion type gunite concrete specific complex admixture and application |
| CN108947318A (en) * | 2018-07-24 | 2018-12-07 | 成都建工预筑科技有限公司 | The wet surface layer additive of plate of mating formation and its preparation process |
| CN110407508A (en) * | 2018-05-29 | 2019-11-05 | 临沂大学 | A kind of wet mixing mortar additive |
| CN111409200A (en) * | 2020-03-27 | 2020-07-14 | 浙江广天构件股份有限公司 | Control method for opening time of premixed concrete |
| CN115286283A (en) * | 2022-08-17 | 2022-11-04 | 湖北裕顺建材科技有限公司 | Dry powder mortar additive containing industrial protein powder and dry powder mortar |
| CN115650675A (en) * | 2022-11-04 | 2023-01-31 | 科之杰新材料集团福建有限公司 | Wet-mixed mortar and preparation method thereof |
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| CN101182139A (en) * | 2007-11-12 | 2008-05-21 | 华南理工大学 | Masonry cement having higher strength and water retention |
| CN101234864A (en) * | 2008-02-28 | 2008-08-06 | 赵鲁波 | Building plastering mortar additive |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107973541A (en) * | 2016-10-21 | 2018-05-01 | 常州大正恒固建材有限公司 | Height bonds the low pumping type wet mixing mortar that drops and surely moulds agent and preparation method thereof with liquid |
| CN106747192A (en) * | 2016-12-16 | 2017-05-31 | 广州市盈坚建材科技发展有限公司 | A kind of wet mixing mortar of resistance to compression moisturizing and preparation method thereof |
| CN106904865B (en) * | 2017-03-02 | 2019-05-10 | 安徽鑫固环保股份有限公司 | A kind of wet mixing mortar additive and preparation method thereof |
| CN106904865A (en) * | 2017-03-02 | 2017-06-30 | 安徽鑫固环保股份有限公司 | A kind of wet mixing mortar additive and preparation method thereof |
| CN107686301B (en) * | 2017-08-04 | 2020-06-26 | 吉林鹏霖混凝土有限公司 | Wet-mixed mortar and preparation method thereof |
| CN107686301A (en) * | 2017-08-04 | 2018-02-13 | 吉林鹏霖混凝土有限公司 | A kind of wet mixing mortar and preparation method thereof |
| CN107572862A (en) * | 2017-08-29 | 2018-01-12 | 南通成山高分子材料有限公司 | A kind of preparation technology of wet mixing mortar additive |
| CN107555833A (en) * | 2017-08-29 | 2018-01-09 | 南通成山高分子材料有限公司 | A kind of wet mixing mortar additive |
| CN107986668A (en) * | 2017-11-10 | 2018-05-04 | 杭州临安引力外加剂有限公司 | A kind of wet mixing mortar additive and preparation method thereof |
| CN107986671A (en) * | 2017-12-08 | 2018-05-04 | 江苏苏博特新材料股份有限公司 | A kind of low rebound, anti-corrosion type gunite concrete specific complex admixture and application |
| CN110407508A (en) * | 2018-05-29 | 2019-11-05 | 临沂大学 | A kind of wet mixing mortar additive |
| CN108947318A (en) * | 2018-07-24 | 2018-12-07 | 成都建工预筑科技有限公司 | The wet surface layer additive of plate of mating formation and its preparation process |
| CN111409200A (en) * | 2020-03-27 | 2020-07-14 | 浙江广天构件股份有限公司 | Control method for opening time of premixed concrete |
| CN115286283A (en) * | 2022-08-17 | 2022-11-04 | 湖北裕顺建材科技有限公司 | Dry powder mortar additive containing industrial protein powder and dry powder mortar |
| CN115650675A (en) * | 2022-11-04 | 2023-01-31 | 科之杰新材料集团福建有限公司 | Wet-mixed mortar and preparation method thereof |
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Application publication date: 20160921 |