CN109133713A - A kind of preparation method and application of new type mortar additive - Google Patents
A kind of preparation method and application of new type mortar additive Download PDFInfo
- Publication number
- CN109133713A CN109133713A CN201811348663.7A CN201811348663A CN109133713A CN 109133713 A CN109133713 A CN 109133713A CN 201811348663 A CN201811348663 A CN 201811348663A CN 109133713 A CN109133713 A CN 109133713A
- Authority
- CN
- China
- Prior art keywords
- preparation
- new type
- mortar additive
- parts
- type mortar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention provides a kind of preparation method and applications of new type mortar additive.The preparation method of additive of the present invention includes the following steps: that (a) by after the heating of activated monomer solution, is added persulfate solution, continues to heat up；It is stood after stirring, then, adds water and stirs dilution；(b) 5~15 parts of thickeners, 2~10 parts of fluidizing reagents, 40~80 parts of retarder, 30~50 parts of step (a) products, 0.5~5 component air entraining agent and 0.1~0.5 part of defoaming agent are stirred, obtain new type mortar additive；Wherein, activated monomer includes: at least one of acrylic acid or acrylamide.In the present invention, by increasing the usage amount of autonomous synthesis water conservation component, the usage amount of thickener component is reduced, to have the function that mortar thickening is retained, while can also ensure that the stability of mortar.
Description
Technical field
The present invention relates to the field of building materials, a kind of preparation method in particular to new type mortar additive and answer
With.
Background technique
Mortar is the substance that coheres used of laying bricks in building, mainly by a certain proportion of sand and cementing material (cement, stone
Emplaster, clay etc.) it adds water into, also referred to as mortar, mortar etc..Common mortar mainly has: cement mortar, mixed mortar
(or being cement-lime mortar), lime mortar and clay mortar etc..
Wet mixing mortar is the more environmentally friendly technique of modern mortar, is the important trend of mortar development, can satisfy on building site
The demand of storage, plastering and the construction of long period etc..The increasing of dosage is built but also grinding for mortar additive
Study carefully and improve and gradually increase, existing mortar additive is main or is compounded by thickener, fluidizing reagent, retarder and water
It arrives.
For example, a kind of wet mixing mortar additive is disclosed in prior art CN201710753824.X, by following weight
The group of part is grouped as: 20~40 parts of cellulose ether, 20~30 parts of sodium lignin sulfonate, 0.6~1.0 part of air entraining agent and flyash
900~1000 parts.
Meanwhile prior art CN201410406681.1 also disclose a kind of wet mixing mortar additive and preparation method thereof and
Using, wherein wet mixing mortar additive is made of A material and B material, and A material consists of the following components in percentage by weight: bleed
Agent: 0.8%~2%, retarder: 2%~4%, antimitotic agent: 0.06%~0.15%, reinforcing agent: 0.6%~1.2%, water conservation
Agent: 0.3%~0.7%, surplus is water；B material consists of the following components in percentage by weight: water-reducing agent: 3%~12%, decrement
Agent: 0.2%~0.5%, surplus is water.
However, as above for exemplary existing mortar additive during being used in compounding, there are still some problems, mainly includes
The following aspects:
1. the amount of thickener component is the important factor in order of mortar additive stability, when amounts of thickener is easier more
Layering is precipitated, when thickener deficiency mortar is easy diverging；
2. mortar additive is retained component higher cost, causes mortar additive production cost also to increase, reach preferable
When Water-saving effect, the use of the water-retaining agent of higher concentration is needed, and this is but also the viscosity of mortar is higher, meanwhile, higher cost
Also increase production risk.
In view of this, the present invention is specifically proposed.
Summary of the invention
The first object of the present invention is to provide a kind of mortar additive, in the mortar additive, passes through synthesis and protects
The use of water functional mass and the dosage for controlling thickener, so that mortar additive can reach good water conservation, thickening
Equal practical application effects.
The second object of the present invention is to provide the preparation method of mortar additive described in one kind.
The third object of the present invention is to provide the application of mortar additive described in one kind.
In order to realize above-mentioned purpose of the invention, the following technical scheme is adopted:
A kind of preparation method of new type mortar additive, the preparation method include the following steps:
(a) by after the heating of activated monomer solution, persulfate solution is added, continues to heat up；It stands after stirring, then, adds
Water agitation and dilution；
(b) by 5~15 parts of thickeners, 2~10 parts of fluidizing reagents, 40~80 parts of retarder, 30~50 parts of step (a) products,
0.5~5 component air entraining agent and 0.1~0.5 part of defoaming agent are stirred, and obtain new type mortar additive；
Wherein, activated monomer includes: at least one of acrylic acid or acrylamide.
Preferably, in the preparation method of new type mortar additive of the present invention, the persulfate includes: persulfuric acid
At least one of ammonium or potassium peroxydisulfate.
Preferably, in the preparation method of new type mortar additive of the present invention, the thickener includes: ethoxy first
At least one of base cellulose, guar gum ether, maltodextrin；
And/or the fluidizing reagent include: high performance water reducing agent of polyocarboxy acid, naphthalene water reducer, in sodium lignin sulfonate extremely
Few one kind；
And/or the retarder includes: at least one of sucrose, citric acid；
And/or the air entraining agent includes: at least one of triterpenoid saponin, rosin resin, lauryl sodium sulfate；
And/or the defoaming agent include: organic silicon defoamer, organic silicon modified by polyether, in polysiloxane defoaming agent extremely
Few one kind.
Preferably, in the preparation method step (a) of new type mortar additive of the present invention, the heating includes heating
To 55~65 DEG C；
It is described to continue heating including being warming up to 75~80 DEG C and/or in step (a).
Preferably, in the preparation method step (a) of new type mortar additive of the present invention, packet is stood after the stirring
It includes:
20~30min is stirred first, then stops 10~15min of stirring, after then continuing to 50~70min of stirring, by institute
It obtains mixed liquor and stands 6~8h.
Preferably, in the preparation method step (a) of new type mortar additive of the present invention, dilution packet is added water and stirred
It includes: under high speed agitation, water being added into the mixed solution after standing, and continue to stir.
It preferably, is in high-speed stirred condition in the preparation method step (b) of new type mortar additive of the present invention
Under, so that each raw material sufficiently dissolves.
Meanwhile the present invention also provides by the obtained new type mortar additive of preparation method of the present invention.
Further, the application the present invention also provides the new type mortar additive in mortar preparation.
Likewise, the present invention also provides a kind of preparation method of mortar, it is novel using the present invention in the preparation method
Mortar additive.
Compared with prior art, the invention has the benefit that
In the present invention, by increasing the usage amount of autonomous synthesis water conservation component (water-soluble fabulous water conservation component), drop
The usage amount of low thickener component to have the function that mortar thickening is retained, while can also ensure that the stability of mortar.And
In conventional mortar additive, since the amount of thickening water conservation component increases, the stability that will lead to product dies down, and thickens water conservation
Effect is unobvious.
Mortar additive of the present invention has the function of good diminishing, and water consumption can be reduced in whipping process, increases sand
Starch workability and mortar strength；Meanwhile the substance by increasing fiber-like, mortar bonding strength and breaking resistance are improved, is smeared
Cohesive force is stronger when grey, is not easy slurry or sagging.
Further, the mortar added with mortar additive of the present invention will not be layered, will not bleeding.Especially
For being retained the mortar of more demanding Self-leveling for thickening, the use of mortar of the present invention can be realized applications well effect,
And this is also the core technology guarantee of High Performance Mortar.
Specific embodiment
Embodiment of the present invention is described in detail below in conjunction with embodiment, but those skilled in the art will
Understand, the following example is merely to illustrate the present invention, and is not construed as limiting the scope of the invention.It is not specified in embodiment specific
Condition person carries out according to conventional conditions or manufacturer's recommended conditions.Reagents or instruments used without specified manufacturer is
The conventional products that can be obtained by commercially available purchase.
In view of existing mortar additive shortcoming existing in practical application, the present invention provides a kind of novel
Mortar additive, by the synthesis and introducing of novel water-retaining agent material, and the adjustment for each function ingredients dosage, with effective
Solve existing mortar shortcoming existing in price and practical application effect.
Specifically, mortar additive provided by the present invention, is that one kind is mainly used for outside one of wet mixing mortar technique
With additive, preparation flow can refer to as follows:
(i) activated monomer unlatching soluble in water is stirred, is warming up to 55~65 DEG C；
Wherein, the mass ratio of activated monomer and water are as follows: (90~110): (800~900)；Meanwhile in this step, work used
Property monomer be at least one of acrylic acid or acrylamide.
(ii) persulfate is soluble in water, step (i) products therefrom is then at the uniform velocity added, time control is added and exists
10min or so is warming up to 75~80 DEG C after the completion of being added；
In this step, the mass ratio of persulfate and water are as follows: (0.2~0.5): (100)；Meanwhile persulfate and step
(1) mass ratio of activated monomer in are as follows: (0.2~0.5): (90~110)；
Further, persulfate used is at least one of ammonium persulfate or potassium peroxydisulfate；
(iii) it stirs 20~30 minutes, stops stirring 10~15 minutes, stop stirring after opening stirring 50~70 minutes,
Step (ii) reaction mixture system is pumped into high speed stirred tank, and stands 6~8h；
(iv) high-speed stirred kettle mixing plant is opened, water is added and is diluted；Then, under the revolving speed of 2880r/min, fastly
It is spare to be moved to material storing tank, is abbreviated as substance B by speed shearing 30 minutes for products therefrom system；
In this step, the mass ratio of water and activated monomer used is diluted are as follows: (1000~1100): (90~110).
(v) by 5~15 parts of thickener, 2~10 parts of fluidizing reagent, 40~80 parts of retarder, 30~50 parts of B object
Matter, the air entraining agent of 0.5~5 component, 0.1~0.5 part of defoaming agent are stirred in a stirring kettle with 2880 revs/min of speed
It mixes, so that each raw material is sufficiently dissolved, mixed, obtains product mortar additive.
In this step, thickener used are as follows: at least one of hydroxyethylmethylcellulose, guar gum ether, maltodextrin；
Fluidizing reagent are as follows: at least one of high performance water reducing agent of polyocarboxy acid, naphthalene water reducer, sodium lignin sulfonate；
Retarder are as follows: at least one of sucrose, citric acid；
Air entraining agent are as follows: at least one of triterpenoid saponin, rosin resin, lauryl sodium sulfate；
Defoaming agent are as follows: at least one of organic silicon defoamer, organic silicon modified by polyether, polysiloxane defoaming agent.
The water-retaining agent for synthesizing and using is because being rich in polar group (such as COO in its molecular structure-), hydrone and polymer
Hydrogen bond is formd between polarity side group, there is excellent water-soluble performance, and because molecule cross-link forms line, reticular structure, is being inhaled
Water also plays the role of thickening while water conservation, reduces the dosage of thickener, the risk that thickener is precipitated is reduced, by high speed shear
High molecular polymer stably dispersing effect and Water-saving effect afterwards is more preferable, and cost is lower, and mortar additive of the present invention actually makes
With the middle one of the major reasons that can reach applications well effect；
Meanwhile coordinate the consumption proportion of water-retaining agent and thickener, and mortar additive of the present invention can overcome it is existing
One of the reason of additive disadvantage.
Mortar additive of the present invention and all kinds of mortars have good compatibility, thus can be further used for all kinds of mortars
Preparation in, and the mortar added with mortar additive of the present invention has good adhesion strength and breaking resistance, glues when plastering
It is stronger to tie power, is not easy slurry or sagging, meanwhile, layering or bleeding will not occur.
Embodiment 1
S1,100 parts of acrylic acid is dissolved in 800 parts of water and opens stirring, be warming up to 55 DEG C；
S2,0.4 part of ammonium persulfate is dissolved in 100 parts of water, is warming up to 75 DEG C after S1 at the uniform velocity was added at 10 minutes；
S3, stirring 30 minutes, stop stirring 15 minutes, stop stirring after opening stirring 50 minutes, by solution pump to high speed
Stirred tank stands 6h；
S4, high-speed stirred kettle mixing plant is opened, is added 1100 parts of dilution water, is quickly cut with 2880 revs/min of speed
It cuts and moves back within 30 minutes, name B substance spare to material storing tank；
S5, by 6 parts of ethoxyl methyl cellulose ether, 4 parts of guar gum ether, 3 parts of high performance water reducing agent of polyocarboxy acid, 40
Part sucrose, 30 parts of B substance, the triterpenoid saponin of 5 components, 0.3 part of dimethicone is in a stirring kettle with 2880 revs/min
Speed be stirred abundant dissolution, obtain product.
Embodiment 2
S1,100 parts of acrylic acid is dissolved in 800 parts of water and opens stirring, be warming up to 55 DEG C；
S2,0.48 part of potassium peroxydisulfate is dissolved in 100 parts of water, is warming up to 75 DEG C after S1 at the uniform velocity was added at 10 minutes；
S3, stirring 30 minutes, stop stirring 15 minutes, stop stirring after opening stirring 50 minutes, by solution pump to high speed
Stirred tank stands 6h；
S4, high-speed stirred kettle mixing plant is opened, is added 1100 parts of dilution water, is quickly cut with 2880 revs/min of speed
It cuts and moves back within 30 minutes, name B substance spare to material storing tank；
S5, by 3 parts of maltodextrin, 4.5 parts of naphthalene water reducer, 40 parts of citric acid, 40 parts of B substance, 5 components
Rosin resin, 0.3 part of dimethicone are stirred abundant dissolution in a stirring kettle with 2880 revs/min of speed, obtain
Product.
Embodiment 3
S1, by 50 parts of acrylic acid, 60 parts of acrylamides be dissolved in 850 parts of water open stirring, be warming up to 55 DEG C；
S2,0.52 part of potassium peroxydisulfate is dissolved in 110 parts of water, is warming up to 75 DEG C after S1 at the uniform velocity was added at 10 minutes；
S3, stirring 30 minutes, stop stirring 15 minutes, stop stirring after opening stirring 50 minutes, by solution pump to high speed
Stirred tank stands 6h；
S4, high-speed stirred kettle mixing plant is opened, is added 1100 parts of dilution water, is quickly cut with 2880 revs/min of speed
It cuts and moves back within 30 minutes, name B substance spare to material storing tank；
S5, by 3 parts of maltodextrin, 4.5 parts of sodium lignin sulfonate, 40 parts of citric acid, 40 parts of B substance, 5 components
Rosin resin, 0.3 part of dimethicone abundant dissolution is stirred with 2880 revs/min of speed in a stirring kettle, obtain
To product.
Experimental example 1
M10: cement (PO42.5) 200kg/m3, flyash (II grades) 130kg/m3, Machine-made Sand (Mx=2.9) 1300kg/
m3, mortar additive volume 2.0%, water consumption is the water consumption of 90 ± 5mm of consistometric value.
Commercially available group is the commercially available mortar additive mortar of addition, and experimental example 1-3 is respectively to add mortar prepared by embodiment 1-3
The mortar of additive.
By experimental result as above it is found that commercially available mortar additive water retention property is poor, initial consistency value is larger, due to it is easy
Property is poor to cause 28 days later periods intensity to have a certain impact, and 90 days commercially available additives of Stability Observation have flocculent substance to go out
It is existing, there is mouldy sign.And mortar additive prepared by the present invention then has good water retention property, mortar compression strength is big,
It has good stability.
Although illustrate and describing the present invention with specific embodiment, it will be appreciated that without departing substantially from of the invention
Many other change and modification can be made in the case where spirit and scope.It is, therefore, intended that in the following claims
Including belonging to all such changes and modifications in the scope of the invention.
Claims (10)
1. a kind of preparation method of new type mortar additive, which is characterized in that the preparation method includes the following steps:
(a) by after the heating of activated monomer solution, persulfate solution is added, continues to heat up；It is stood after stirring, then, water is added to stir
Mix dilution；
(b) by 5~15 parts of thickeners, 2~10 parts of fluidizing reagents, 40~80 parts of retarder, 30~50 parts of step (a) products, 0.5~
5 component air entraining agents and 0.1~0.5 part of defoaming agent are stirred, and obtain new type mortar additive；
Wherein, activated monomer includes: at least one of acrylic acid or acrylamide.
2. the preparation method of new type mortar additive according to claim 1, which is characterized in that the persulfate packet
It includes: at least one of ammonium persulfate or potassium peroxydisulfate.
3. the preparation method of new type mortar additive according to claim 1, which is characterized in that the thickener includes:
At least one of hydroxyethylmethylcellulose, guar gum ether, maltodextrin；
And/or the fluidizing reagent includes: high performance water reducing agent of polyocarboxy acid, naphthalene water reducer, at least one in sodium lignin sulfonate
Kind；
And/or the retarder includes: at least one of sucrose, citric acid；
And/or the air entraining agent includes: at least one of triterpenoid saponin, rosin resin, lauryl sodium sulfate；
And/or the defoaming agent includes: organic silicon defoamer, organic silicon modified by polyether, at least one in polysiloxane defoaming agent
Kind.
4. the preparation method of new type mortar additive according to claim 1, which is characterized in that described to add in step (a)
Heat includes being heated to 55~65 DEG C；
It is described to continue heating including being warming up to 75~80 DEG C and/or in step (a).
5. the preparation method of new type mortar additive according to claim 1, which is characterized in that described to stir in step (a)
It is stood after mixing and includes:
20~30mi n is stirred first, then stops stirring 10~15mi n, after then continuing to 50~70mi of stirring n, by gained
Mixed liquor stands 6~8h.
6. the preparation method of new type mortar additive according to claim 1, which is characterized in that in step (a), water is added to stir
Mixing dilution includes: under high speed agitation, water to be added into the mixed solution after standing, and continue to stir.
7. the preparation method of new type mortar additive according to claim 1, which is characterized in that be in height in step (b)
Under fast stirring condition, so that each raw material sufficiently dissolves.
8. the obtained new type mortar additive of preparation method described in any one of -7 according to claim 1.
9. application of the new type mortar additive according to any one of claims 8 in mortar preparation.
10. a kind of preparation method of mortar, which is characterized in that in the preparation method, using any one of claim 1-7 institute
The new type mortar additive stated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811348663.7A CN109133713A (en) | 2018-11-13 | 2018-11-13 | A kind of preparation method and application of new type mortar additive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811348663.7A CN109133713A (en) | 2018-11-13 | 2018-11-13 | A kind of preparation method and application of new type mortar additive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109133713A true CN109133713A (en) | 2019-01-04 |
Family
ID=64805856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811348663.7A Pending CN109133713A (en) | 2018-11-13 | 2018-11-13 | A kind of preparation method and application of new type mortar additive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109133713A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109574544A (en) * | 2019-01-23 | 2019-04-05 | 张家界万众新型建筑材料有限公司 | A kind of complex additive in common dry-mixed mortar |
| CN111087193A (en) * | 2019-12-27 | 2020-05-01 | 杭州斯曼特建材科技有限公司 | Dry-mixed mortar thickening agent 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 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104556812A (en) * | 2015-01-06 | 2015-04-29 | 江苏中凯新材料有限公司 | Plastic stabilizer for wet-mixed mortar |
-
2018
- 2018-11-13 CN CN201811348663.7A patent/CN109133713A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104556812A (en) * | 2015-01-06 | 2015-04-29 | 江苏中凯新材料有限公司 | Plastic stabilizer for wet-mixed mortar |
Non-Patent Citations (4)
| Title |
|---|
| 冯尚彩: "《综合化学实验》", 31 August 2012, 山东人民出版社 * |
| 周永元: "《纺织浆料学》", 31 January 2004, 中国纺织出版社 * |
| 贾丽华等: "《化学工程与工艺综合实验》", 30 September 2009, 哈尔滨工程大学出版社 * |
| 高峰: "《药用高分子材料学》", 31 October 2014, 华东理工大学出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109574544A (en) * | 2019-01-23 | 2019-04-05 | 张家界万众新型建筑材料有限公司 | A kind of complex additive in common dry-mixed mortar |
| CN111087193A (en) * | 2019-12-27 | 2020-05-01 | 杭州斯曼特建材科技有限公司 | Dry-mixed mortar thickening agent 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104973817B (en) | A kind of concrete viscosity regulator being applicable to use with polycarboxylate water-reducer compatibility and preparation method thereof | |
| CN103951304B (en) | A kind of concrete intensifier and its preparation method and application | |
| CN101255042B (en) | Mortar and concrete modified by emulsified asphalt | |
| CN114685083B (en) | Polycarboxylate superplasticizer for sleeve grouting material for prefabricated part, grouting material thereof and use method of polycarboxylate superplasticizer | |
| CN109133713A (en) | A kind of preparation method and application of new type mortar additive | |
| CN103086638B (en) | Mortar additive and production process thereof | |
| CN101580366A (en) | Mortar and concrete modified by emulsified asphalt | |
| CN110117173A (en) | A kind of mixed sand wet mixing mortar and preparation method thereof | |
| CN108585587A (en) | A kind of room temperature synthesis early-strength alkali-free liquid setting accelerator and preparation method thereof | |
| CN109399999A (en) | A kind of high early-strength low-alkali liquid quick-setting agent of green and preparation method | |
| CN103011675B (en) | Water-based water-reduction type mortar tackifier, as well as preparation method and application thereof | |
| CN108456287A (en) | A kind of preparation method of low cost polycarboxylate water-reducer | |
| CN109133796A (en) | A kind of sprayable superhigh tenacity cement-base composite material and preparation method thereof | |
| CN101580367A (en) | Mortar and concrete modified by emulsified asphalt | |
| CN105199066B (en) | The preparation method of modified naphthalene series water-reducing agent | |
| CN108585612A (en) | A kind of wet mixing mortar additive and its application | |
| CN111484269B (en) | Viscosity regulator for cement-based grouting material and preparation method thereof | |
| CN105017489A (en) | prenylpolyethoxy ether water reducer and preparation method thereof | |
| CN102503231A (en) | Mortar additive concentrate and preparation method thereof | |
| CN111943557A (en) | Composite dry-mixed mortar additive and preparation method thereof | |
| CN108285286B (en) | Preparation method of polycarboxylate superplasticizer suitable for mortar | |
| CN106007468B (en) | A kind of concrete composite strengthening water reducer and preparation method thereof | |
| CN106116226B (en) | Improve workability, encapsulated polycarboxylate water-reducer and preparation method thereof | |
| CN108793923B (en) | Improved gypsum plastering mortar and preparation method thereof | |
| CN103012222A (en) | Method for preparing naphthalene-based high efficient water reducing agent |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 550000 No.7, Gaoyue street, shawen ecological science and Technology Industrial Park, Guiyang National High tech Industrial Development Zone, Guiyang City, Guizhou Province Applicant after: Guizhou shiboshi Technology Co.,Ltd. Address before: Room b627, venture building, Jinyang science and Technology Industrial Park, Guiyang National High tech Industrial Development Zone, 550000, Guiyang City, Guizhou Province Applicant before: GUIZHOU DR.SHI TECHNOLOGY Ltd. |
|
| CB02 | Change of applicant information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190104 |
|
| RJ01 | Rejection of invention patent application after publication |