CN106477943A - A kind of composite cement admixture - Google Patents
A kind of composite cement admixture Download PDFInfo
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- CN106477943A CN106477943A CN201610917075.5A CN201610917075A CN106477943A CN 106477943 A CN106477943 A CN 106477943A CN 201610917075 A CN201610917075 A CN 201610917075A CN 106477943 A CN106477943 A CN 106477943A
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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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- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/10—Accelerators; Activators
- C04B2103/12—Set accelerators
Abstract
The invention discloses a kind of composite cement admixture, become by the mixed raw material of following weight portion：16 22 parts of calcium hydroxide, 10 16 parts of isopropanol, 8 12 parts of zinc chloride, 28 parts of 2 methyl dodecane, 5 ketone, 4 10 parts of dodecyldimethylammonium hydroxide inner salt, 26 parts of lignosulfonates, 15 parts of alkyl succinimide, 6 10 parts of 1-Phenylethanone., 28 parts of ammonium sulfate, 4 10 parts of tetrabutyl ammonium borohydride, 59 parts of Palmic acid, 6 12 parts of stigmastatrienol；The cement additive of present invention preparation can improve cement output, strengthens strength of cement, cement early stage comprcssive strength is affected little, can meet engine request；Cement mechanical property and pore structure can be improved, improve the antifreeze grinding aid performance of cement, reduce cement permeability, adjust cement setting time, increase concrete density, reach the effect of energy-conserving and environment-protective；The cement additive of the present invention, compared with commercially available additive, has significant performance and improves, market promotion prospect is wide.
Description
Technical field
The invention belongs to cement additire technical field is and in particular to a kind of composite cement admixture.
Background technology
With the development of nowadays building trade, cement is as a kind of construction material with extensive using value, its demand
Amount is being continuously increased, and the meanwhile requirement of the kind to cement and quality is also being constantly increasing, and how to ensure or to carry
Under conditions of high strength of cement and physical properties, reduce production and the application cost of cement, become a popular problem.
It is known that filling some additives in cement can improve in cement the addition content of mixing material and some other
Performance, in recent years people by substantial amounts of scientific experimentss, cement additive is updated, and develop different properties
Cement additive；The major defect of existing cement additive is：Single function, comprehensive effectiveness is poor, in order to meet cement skill
The demand of art development, develops a kind of physicochemical property that can either improve cement and workability, can guarantee that cement quality simultaneously again
Reduce manufacture of cement cost, the additive of raising cement output is the current problem needing to solve.
Content of the invention
It is an object of the invention to provide a kind of composite cement admixture, with asking of solving to propose in above-mentioned background technology
Topic.
For achieving the above object, the present invention provides following technical scheme：
A kind of composite cement admixture, is made up of the raw material of following weight portion：Calcium hydroxide 16-22 part, isopropanol 10-
16 parts, zinc chloride 8-12 part, 2- methyl-dodecanoic -5- ketone 2-8 part, dodecyldimethylammonium hydroxide inner salt 4-10 part, sulfomethylated lignin
Hydrochlorate 2-6 part, alkyl succinimide 1-5 part, 1-Phenylethanone. 6-10 part, ammonium sulfate 2-8 part, tetrabutyl ammonium borohydride 4-10 part,
Palmic acid 5-9 part, stigmastatrienol 6-12 part.
As the further scheme of the present invention：Described composite cement admixture, is made up of the raw material of following weight portion：Hydrogen
Calcium oxide 18-20 part, isopropanol 12-14 part, zinc chloride 9-11 part, 2- methyl-dodecanoic -5- ketone 4-6 part, dimethyl
Base glycine betaine 6-8 part, lignosulfonates 3-5 part, alkyl succinimide 2-4 part, 1-Phenylethanone. 7-9 part, ammonium sulfate 4-6 part,
Tetrabutyl ammonium borohydride 6-8 part, Palmic acid 6-8 part, stigmastatrienol 8-10 part.
As the present invention further scheme：Described composite cement admixture, is made up of the raw material of following weight portion：
19 parts of calcium hydroxide, 13 parts of isopropanol, 10 parts of zinc chloride, 5 parts of 2- methyl-dodecanoic -5- ketone, dodecyldimethylammonium hydroxide inner salt
7 parts, 4 parts of lignosulfonates, 3 parts of alkyl succinimide, 8 parts of 1-Phenylethanone., 5 parts of ammonium sulfate, 7 parts of tetrabutyl ammonium borohydride,
7 parts of Palmic acid, 9 parts of stigmastatrienol.
As the present invention further scheme：The preparation method of described composite cement admixture, comprises the following steps：
1) by the dodecyldimethylammonium hydroxide inner salt of formula ratio, lignosulfonates, alkyl succinimide and isopropanol
Heat temperature raising reaction in reactor is put into after solution mixing；
2) ammonium sulfate and liquor zinci chloridi are obtained by soluble in water respectively to the ammonium sulfate of formula ratio and zinc chloride, by sulfur
Acid ammonium solution and liquor zinci chloridi are poured slowly into step 1) reactor in, stir while adding, obtain mixed solution A standby；
3) by the 1-Phenylethanone. of formula ratio, tetrabutyl ammonium borohydride, Palmic acid, stigmastatrienol, 2- methyl-dodecanoic -5-
Ketone is poured into water successively, at a temperature of 50-60 DEG C, is sufficiently mixed stirring 1-2h, obtains mixed solution B standby；
4) calcium hydroxide is slowly added into step 3) in mixed solution B solution in, stir while adding, must mix molten
Liquid C is standby；
5) by step 2) in mixed solution A and step 4) in mixed solution C mixed, in 60-80 DEG C of constant temperature bar
It is sufficiently stirred for 40-60min under part, is cooled to room temperature, obtain cement additive of the present invention.
Compared with prior art, the invention has the beneficial effects as follows：Simple production process of the present invention is convenient, with low cost, and
Substantially, compatibility is good, is easy to engineer applied for effect；The cement additive of present invention preparation can improve cement output, strengthens cement
Intensity, affects on cement early stage comprcssive strength little, can meet engine request；Cement mechanical property and pore structure can be improved, carry
The antifreeze grinding aid performance of high cement, reduces cement permeability, adjusts cement setting time, increases concrete density, reaches section
The effect of energy environmental protection；The cement additive of the present invention, compared with commercially available additive, has significant performance and improves, before marketing
Scape is wide.
Specific embodiment
With reference to specific embodiment, the technical scheme of this patent is described in more detail.
Embodiment 1
A kind of composite cement admixture, is made up of the raw material of following weight portion：16 parts of calcium hydroxide, 10 parts of isopropanol,
8 parts of zinc chloride, 2 parts of 2- methyl-dodecanoic -5- ketone, 4 parts of dodecyldimethylammonium hydroxide inner salt, 2 parts of lignosulfonates, alkyl
1 part of succimide, 6 parts of 1-Phenylethanone., 2 parts of ammonium sulfate, 4 parts of tetrabutyl ammonium borohydride, 5 parts of Palmic acid, 6 parts of stigmastatrienol.
The preparation method of described composite cement admixture, comprises the following steps：
1) by the dodecyldimethylammonium hydroxide inner salt of formula ratio, lignosulfonates, alkyl succinimide and isopropanol
Heat temperature raising reaction in reactor is put into after solution mixing；
2) ammonium sulfate and liquor zinci chloridi are obtained by soluble in water respectively to the ammonium sulfate of formula ratio and zinc chloride, by sulfur
Acid ammonium solution and liquor zinci chloridi are poured slowly into step 1) reactor in, stir while adding, obtain mixed solution A standby；
3) by the 1-Phenylethanone. of formula ratio, tetrabutyl ammonium borohydride, Palmic acid, stigmastatrienol, 2- methyl-dodecanoic -5-
Ketone is poured into water successively, at a temperature of 50-60 DEG C, is sufficiently mixed stirring 1-2h, obtains mixed solution B standby；
4) calcium hydroxide is slowly added into step 3) in mixed solution B solution in, stir while adding, must mix molten
Liquid C is standby；
5) by step 2) in mixed solution A and step 4) in mixed solution C mixed, in 60-80 DEG C of constant temperature bar
It is sufficiently stirred for 40-60min under part, is cooled to room temperature, obtain cement additive of the present invention.
The product that embodiment 1 is prepared is tested, and adds 0%, 0.5%, 1%, 2%, 3% respectively in cement
Weight embodiment 1 preparation product, the Behavior of Hardened Cement Paste brick being made to high temperature pressure corrosion instrument corrode 18 days, test 90 DEG C and
Comprcssive strength agent permeability variation before and after cement corrosion at a temperature of 120 DEG C, result is as shown in table 1 and table 2：
Comprcssive strength agent permeability variation test experiments before and after cement corrosion at a temperature of 1 90 DEG C of table
Comprcssive strength agent permeability variation test experiments before and after cement corrosion at a temperature of 2 120 DEG C of table
Embodiment 2
A kind of composite cement admixture, is made up of the raw material of following weight portion：22 parts of calcium hydroxide, 16 parts of isopropanol,
12 parts of zinc chloride, 8 parts of 2- methyl-dodecanoic -5- ketone, 10 parts of dodecyldimethylammonium hydroxide inner salt, 6 parts of lignosulfonates, alkane
5 parts of base succimide, 10 parts of 1-Phenylethanone., 8 parts of ammonium sulfate, 10 parts of tetrabutyl ammonium borohydride, 9 parts of Palmic acid, stigmastatrienol
12 parts.
The preparation method of described composite cement admixture, comprises the following steps：
1) by the dodecyldimethylammonium hydroxide inner salt of formula ratio, lignosulfonates, alkyl succinimide and isopropanol
Heat temperature raising reaction in reactor is put into after solution mixing；
2) ammonium sulfate and liquor zinci chloridi are obtained by soluble in water respectively to the ammonium sulfate of formula ratio and zinc chloride, by sulfur
Acid ammonium solution and liquor zinci chloridi are poured slowly into step 1) reactor in, stir while adding, obtain mixed solution A standby；
3) by the 1-Phenylethanone. of formula ratio, tetrabutyl ammonium borohydride, Palmic acid, stigmastatrienol, 2- methyl-dodecanoic -5-
Ketone is poured into water successively, at a temperature of 50-60 DEG C, is sufficiently mixed stirring 1-2h, obtains mixed solution B standby；
4) calcium hydroxide is slowly added into step 3) in mixed solution B solution in, stir while adding, must mix molten
Liquid C is standby；
5) by step 2) in mixed solution A and step 4) in mixed solution C mixed, in 60-80 DEG C of constant temperature bar
It is sufficiently stirred for 40-60min under part, is cooled to room temperature, obtain cement additive of the present invention.
The product that embodiment 2 is prepared is tested, and adds 0%, 0.5%, 1%, 2%, 3% respectively in cement
Weight embodiment 2 preparation product, the Behavior of Hardened Cement Paste brick being made to high temperature pressure corrosion instrument corrode 18 days, test 90 DEG C and
Comprcssive strength agent permeability variation before and after cement corrosion at a temperature of 120 DEG C, result is as shown in table 3 and table 4：
Comprcssive strength agent permeability variation test experiments before and after cement corrosion at a temperature of 3 90 DEG C of table
Comprcssive strength agent permeability variation test experiments before and after cement corrosion at a temperature of 4 120 DEG C of table
Embodiment 3
A kind of composite cement admixture, by the material composition of following weight portion：18 parts of calcium hydroxide, 12 parts of isopropanol,
9 parts of zinc chloride, 4 parts of 2- methyl-dodecanoic -5- ketone, 6 parts of dodecyldimethylammonium hydroxide inner salt, 3 parts of lignosulfonates, alkyl
2 parts of succimide, 7 parts of 1-Phenylethanone., 4 parts of ammonium sulfate, 6 parts of tetrabutyl ammonium borohydride, 6 parts of Palmic acid, 8 parts of stigmastatrienol.
The preparation method of described composite cement admixture, comprises the following steps：
1) by the dodecyldimethylammonium hydroxide inner salt of formula ratio, lignosulfonates, alkyl succinimide and isopropanol
Heat temperature raising reaction in reactor is put into after solution mixing；
2) ammonium sulfate and liquor zinci chloridi are obtained by soluble in water respectively to the ammonium sulfate of formula ratio and zinc chloride, by sulfur
Acid ammonium solution and liquor zinci chloridi are poured slowly into step 1) reactor in, stir while adding, obtain mixed solution A standby；
3) by the 1-Phenylethanone. of formula ratio, tetrabutyl ammonium borohydride, Palmic acid, stigmastatrienol, 2- methyl-dodecanoic -5-
Ketone is poured into water successively, at a temperature of 50-60 DEG C, is sufficiently mixed stirring 1-2h, obtains mixed solution B standby；
4) calcium hydroxide is slowly added into step 3) in mixed solution B solution in, stir while adding, must mix molten
Liquid C is standby；
5) by step 2) in mixed solution A and step 4) in mixed solution C mixed, in 60-80 DEG C of constant temperature bar
It is sufficiently stirred for 40-60min under part, is cooled to room temperature, obtain cement additive of the present invention.
The product that embodiment 3 is prepared is tested, and adds 0%, 0.5%, 1%, 2%, 3% respectively in cement
Weight embodiment 3 preparation product, the Behavior of Hardened Cement Paste brick being made to high temperature pressure corrosion instrument corrode 18 days, test 90 DEG C and
Comprcssive strength agent permeability variation before and after cement corrosion at a temperature of 120 DEG C, result is as shown in table 5 and table 6：
Comprcssive strength agent permeability variation test experiments before and after cement corrosion at a temperature of 5 90 DEG C of table
Comprcssive strength agent permeability variation test experiments before and after cement corrosion at a temperature of 6 120 DEG C of table
Embodiment 4
A kind of composite cement admixture, by the material composition of following weight portion：20 parts of calcium hydroxide, 14 parts of isopropanol,
11 parts of zinc chloride, 6 parts of 2- methyl-dodecanoic -5- ketone, 8 parts of dodecyldimethylammonium hydroxide inner salt, 5 parts of lignosulfonates, alkyl
4 parts of succimide, 9 parts of 1-Phenylethanone., 6 parts of ammonium sulfate, 8 parts of tetrabutyl ammonium borohydride, 8 parts of Palmic acid, 10 parts of stigmastatrienol.
The preparation method of described composite cement admixture, comprises the following steps：
1) by the dodecyldimethylammonium hydroxide inner salt of formula ratio, lignosulfonates, alkyl succinimide and isopropanol
Heat temperature raising reaction in reactor is put into after solution mixing；
2) ammonium sulfate and liquor zinci chloridi are obtained by soluble in water respectively to the ammonium sulfate of formula ratio and zinc chloride, by sulfur
Acid ammonium solution and liquor zinci chloridi are poured slowly into step 1) reactor in, stir while adding, obtain mixed solution A standby；
3) by the 1-Phenylethanone. of formula ratio, tetrabutyl ammonium borohydride, Palmic acid, stigmastatrienol, 2- methyl-dodecanoic -5-
Ketone is poured into water successively, at a temperature of 50-60 DEG C, is sufficiently mixed stirring 1-2h, obtains mixed solution B standby；
4) calcium hydroxide is slowly added into step 3) in mixed solution B solution in, stir while adding, must mix molten
Liquid C is standby；
5) by step 2) in mixed solution A and step 4) in mixed solution C mixed, in 60-80 DEG C of constant temperature bar
It is sufficiently stirred for 40-60min under part, is cooled to room temperature, obtain cement additive of the present invention.
The product that embodiment 4 is prepared is tested, and adds 0%, 0.5%, 1%, 2%, 3% respectively in cement
Weight embodiment 4 preparation product, the Behavior of Hardened Cement Paste brick being made to high temperature pressure corrosion instrument corrode 18 days, test 90 DEG C and
Comprcssive strength agent permeability variation before and after cement corrosion at a temperature of 120 DEG C, result is as shown in table 7 and table 8：
Comprcssive strength agent permeability variation test experiments before and after cement corrosion at a temperature of 7 90 DEG C of table
Comprcssive strength agent permeability variation test experiments before and after cement corrosion at a temperature of 8 120 DEG C of table
Embodiment 5
A kind of composite cement admixture, by the material composition of following weight portion：19 parts of calcium hydroxide, 13 parts of isopropanol,
10 parts of zinc chloride, 5 parts of 2- methyl-dodecanoic -5- ketone, 7 parts of dodecyldimethylammonium hydroxide inner salt, 4 parts of lignosulfonates, alkyl
3 parts of succimide, 8 parts of 1-Phenylethanone., 5 parts of ammonium sulfate, 7 parts of tetrabutyl ammonium borohydride, 7 parts of Palmic acid, 9 parts of stigmastatrienol.
The preparation method of described composite cement admixture, comprises the following steps：
1) by the dodecyldimethylammonium hydroxide inner salt of formula ratio, lignosulfonates, alkyl succinimide and isopropanol
Heat temperature raising reaction in reactor is put into after solution mixing；
2) ammonium sulfate and liquor zinci chloridi are obtained by soluble in water respectively to the ammonium sulfate of formula ratio and zinc chloride, by sulfur
Acid ammonium solution and liquor zinci chloridi are poured slowly into step 1) reactor in, stir while adding, obtain mixed solution A standby；
3) by the 1-Phenylethanone. of formula ratio, tetrabutyl ammonium borohydride, Palmic acid, stigmastatrienol, 2- methyl-dodecanoic -5-
Ketone is poured into water successively, at a temperature of 50-60 DEG C, is sufficiently mixed stirring 1-2h, obtains mixed solution B standby；
4) calcium hydroxide is slowly added into step 3) in mixed solution B solution in, stir while adding, must mix molten
Liquid C is standby；
5) by step 2) in mixed solution A and step 4) in mixed solution C mixed, in 60-80 DEG C of constant temperature bar
It is sufficiently stirred for 40-60min under part, is cooled to room temperature, obtain cement additive of the present invention.
The product that embodiment 5 is prepared is tested, and adds 0%, 0.5%, 1%, 2%, 3% respectively in cement
Weight embodiment 5 preparation product, the Behavior of Hardened Cement Paste brick being made to high temperature pressure corrosion instrument corrode 18 days, test 90 DEG C and
Comprcssive strength agent permeability variation before and after cement corrosion at a temperature of 120 DEG C, result is as shown in table 9 and table 10：
Comprcssive strength agent permeability variation test experiments before and after cement corrosion at a temperature of 9 90 DEG C of table
Comprcssive strength agent permeability variation test experiments before and after cement corrosion at a temperature of 10 120 DEG C of table
Experimental example
The cement that composite cement admixture obtained by using embodiment 1-5 is configured is as experimental group, general on the market
The cement that logical cement additive is configured is matched group, the properties of test cement, and test result is as shown in table 11：
The cement of table 11 embodiment of the present invention 1-5 cement additive preparation and commercially available cement performance comparative experimentss
The bending and compressive strength of cement can be effectively increased by the cement additive that above-mentioned experiment understands gained of the present invention, and
Substantially shorten cement setting time, improve the yield of cement simultaneously, meet the demand to cement additive on the market；By form
Data understands that the cement of the cement additive configuration of the embodiment of the present invention 5 gained is optimum in properties, i.e. embodiment 5
For preferred embodiment.
Above the better embodiment of this patent is explained in detail, but this patent is not limited to above-mentioned embodiment party
Formula, in the ken that one skilled in the relevant art possesses, can also be on the premise of without departing from this patent objective
Various changes can be made.
Claims (4)
1. a kind of composite cement admixture is it is characterised in that be made up of the raw material of following weight portion：Calcium hydroxide 16-22 part,
Isopropanol 10-16 part, zinc chloride 8-12 part, 2- methyl-dodecanoic -5- ketone 2-8 part, dodecyldimethylammonium hydroxide inner salt 4-10
Part, lignosulfonates 2-6 part, alkyl succinimide 1-5 part, 1-Phenylethanone. 6-10 part, ammonium sulfate 2-8 part, tetrabutyl boron hydrogen
Change ammonium 4-10 part, Palmic acid 5-9 part, stigmastatrienol 6-12 part.
2. composite cement admixture according to claim 1 is it is characterised in that be made up of the raw material of following weight portion：
Calcium hydroxide 18-20 part, isopropanol 12-14 part, zinc chloride 9-11 part, 2- methyl-dodecanoic -5- ketone 4-6 part, dodecyl two
Methyl betaine 6-8 part, lignosulfonates 3-5 part, alkyl succinimide 2-4 part, 1-Phenylethanone. 7-9 part, ammonium sulfate 4-6
Part, tetrabutyl ammonium borohydride 6-8 part, Palmic acid 6-8 part, stigmastatrienol 8-10 part.
3. composite cement admixture according to claim 1 is it is characterised in that be made up of the raw material of following weight portion：
19 parts of calcium hydroxide, 13 parts of isopropanol, 10 parts of zinc chloride, 5 parts of 2- methyl-dodecanoic -5- ketone, dodecyldimethylammonium hydroxide inner salt
7 parts, 4 parts of lignosulfonates, 3 parts of alkyl succinimide, 8 parts of 1-Phenylethanone., 5 parts of ammonium sulfate, 7 parts of tetrabutyl ammonium borohydride,
7 parts of Palmic acid, 9 parts of stigmastatrienol.
4. the preparation method according to the arbitrary described composite cement admixture of claim 1-3 is it is characterised in that include following
Step：
1）By the dodecyldimethylammonium hydroxide inner salt of formula ratio, lignosulfonates, alkyl succinimide and aqueous isopropanol
Heat temperature raising reaction in reactor is put into after mixing；
2）Obtain ammonium sulfate and liquor zinci chloridi by soluble in water respectively to the ammonium sulfate of formula ratio and zinc chloride, by ammonium sulfate
Solution and liquor zinci chloridi are poured slowly into step 1）Reactor in, stir while adding, obtain mixed solution A standby；
3）By the 1-Phenylethanone. of formula ratio, tetrabutyl ammonium borohydride, Palmic acid, stigmastatrienol, 2- methyl-dodecanoic -5- ketone according to
Secondary be poured into water, at a temperature of 50-60 DEG C, be sufficiently mixed stirring 1-2h, obtain mixed solution B standby；
4）Calcium hydroxide is slowly added into step 3）In mixed solution B solution in, stir while adding, obtain mixed solution C
Standby；
5）By step 2）In mixed solution A and step 4）In mixed solution C mixed, under 60-80 DEG C of constant temperature
It is sufficiently stirred for 40-60min, is cooled to room temperature, obtain cement additive of the present invention.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107721236A (en) * | 2017-11-17 | 2018-02-23 | 遵义黔成建材有限公司 | A kind of composite cement admixture and preparation method thereof |
| CN107827385A (en) * | 2017-11-17 | 2018-03-23 | 遵义黔成建材有限公司 | A kind of comprehensive cement additive |
| CN110937843A (en) * | 2019-12-24 | 2020-03-31 | 龚小琴 | Preparation process of concrete composite additive |
| CN112679137A (en) * | 2020-12-24 | 2021-04-20 | 江西富创新材料有限公司 | Concrete additive for highway |
| CN115259733A (en) * | 2022-08-12 | 2022-11-01 | 浙江长盈建材科技有限公司 | Cement admixture and production process thereof |
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| CN1673161A (en) * | 2005-03-24 | 2005-09-28 | 张坦然 | Composite cement admixture |
| CN102320772A (en) * | 2011-09-05 | 2012-01-18 | 王琴 | Cement reinforcing agent |
| CN104891844A (en) * | 2015-05-27 | 2015-09-09 | 湖州华仑助剂科技有限公司 | Cement grinding aid |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1673161A (en) * | 2005-03-24 | 2005-09-28 | 张坦然 | Composite cement admixture |
| CN102320772A (en) * | 2011-09-05 | 2012-01-18 | 王琴 | Cement reinforcing agent |
| CN104891844A (en) * | 2015-05-27 | 2015-09-09 | 湖州华仑助剂科技有限公司 | Cement grinding aid |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107721236A (en) * | 2017-11-17 | 2018-02-23 | 遵义黔成建材有限公司 | A kind of composite cement admixture and preparation method thereof |
| CN107827385A (en) * | 2017-11-17 | 2018-03-23 | 遵义黔成建材有限公司 | A kind of comprehensive cement additive |
| CN110937843A (en) * | 2019-12-24 | 2020-03-31 | 龚小琴 | Preparation process of concrete composite additive |
| CN112679137A (en) * | 2020-12-24 | 2021-04-20 | 江西富创新材料有限公司 | Concrete additive for highway |
| CN115259733A (en) * | 2022-08-12 | 2022-11-01 | 浙江长盈建材科技有限公司 | Cement admixture and production process thereof |
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| CN106477943B (en) | 2018-09-04 |
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Effective date of registration: 20200702 Address after: 312030 Jiangqiao Industrial Zone, Yangxunqiao Town, Keqiao District, Shaoxing City, Zhejiang Province Patentee after: Shaoxing Dingfeng Cement Co., Ltd Address before: Xi Zhou Cun, Nanan City, Fujian province 362000 Merrill chichou Quanzhou City No. 35 Patentee before: Huang Jingzhen |