CN109231875A - A kind of cement composite grinding additive - Google Patents
A kind of cement composite grinding additive Download PDFInfo
- Publication number
- CN109231875A CN109231875A CN201811153325.8A CN201811153325A CN109231875A CN 109231875 A CN109231875 A CN 109231875A CN 201811153325 A CN201811153325 A CN 201811153325A CN 109231875 A CN109231875 A CN 109231875A
- Authority
- CN
- China
- Prior art keywords
- parts
- grinding
- cement composite
- cement
- composite grinding
- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/52—Grinding aids; Additives added during grinding
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Disintegrating Or Milling (AREA)
Abstract
The invention discloses a kind of cement composite grinding additive, the cement grinding aid is composed of the following parts by weight: 12-28 parts of polyhydric alcohol amine, 12-28 parts of polyalcohol, 6-13 parts of lignosulfonates, 3-7 parts of odium stearate, 6-12 parts of molasses, 2-6 parts of sodium sulphate, 22-28 parts of water.The present invention is using environmental protection, stable, low toxicity raw material, it is ensured that each component reaches more preferably synergistic effect, is able to satisfy various materials in the grinding aid requirement in different grinding stages, plays best grinding-aid effect, micronized particles eliminate particle agglomeration, improve mill efficiency.
Description
Technical field
The present invention relates to technical field of cement production more particularly to a kind of cement composite grinding additives.
Background technique
China is manufacture of cement big country, accounts for 50% or more of world's cement output, since cement industry is high energy consumption industry,
Therefore it is faced with huge energy-saving and emission-reduction pressure.In cement production process, the energy consumption of grinding is very high, and in grinding process
Capacity usage ratio is low, and consumed energy about 97% becomes thermal energy and wastes；The grinding process energy consumption of clinker accounts for always
The 60% of energy consumption, only a small part energy really are used to increase the specific surface area of material, therefore, improve mill efficiency, drop
Low grinding pow consumption has been the problem of cement industry is extremely paid close attention to.Realize that this purpose can the big measure of the amount of taking: first is that improving grinding
Mechanical structure, grinding process, grinding mode are so that more mechanical energy act on the grinding of material by powder grinding medium
On；Second is that adding a small amount of chemical addition agent in grinding system to influence the mechanochemistry process in grinding operation, improve mill
The mobility of interior material, to achieve the purpose that improve mill efficiency.It obviously, the use of cement grinding aid is the most simple and practical
Approach, and small investment, it is quick, and the physical property of cement can be improved.Cement production enterprise is given in the use of cement grinding aid
Bring it is energy-saving, increase unit-hour output, improve the utilization rate of industrial residue and reduce environmental pollution etc. it is a series of can
The advantage of sustainable development.
China's grinding aid product category is various, ununified market specifications and standard, product quality it is difficult to ensure that, and
There are the single grinding aid product of many components, such product is not only limited by cost of material and quality, but also because of Grinding Aid Mechanism
Difference, it is poor for applicability.
Summary of the invention
The purpose of the present invention is to solve the problems of the prior art, and a kind of cement composite grinding additive proposed.
To achieve the goals above, present invention employs following technical solutions:
A kind of cement composite grinding additive, the cement grinding aid are composed of the following parts by weight: polyhydric alcohol amine 12-
28 parts, 12-28 parts of polyalcohol, 6-13 parts of lignosulfonates, 3-7 parts of odium stearate, 6-12 parts of molasses, 2-6 parts of sodium sulphate, water
22-28 parts.
Preferably, the cement composite grinding additive is composed of the following parts by weight: 12 parts of polyhydric alcohol amine, polyalcohol
12 parts, 6 parts of lignosulfonates, 3 parts of odium stearate, 6 parts of molasses, 2 parts of sodium sulphate, 22 parts of water.
Preferably, the cement composite grinding additive is composed of the following parts by weight: 22 parts of polyhydric alcohol amine, polyalcohol
22 parts, 10 parts of lignosulfonates, 5 parts of odium stearate, 9 parts of molasses, 4 parts of sodium sulphate, 25 parts of water.
Preferably, the cement composite grinding additive is composed of the following parts by weight: 28 parts of polyhydric alcohol amine, polyalcohol
28 parts, 13 parts of lignosulfonates, 7 parts of odium stearate, 12 parts of molasses, 6 parts of sodium sulphate, 28 parts of water.
Preferably, the polyhydric alcohol amine includes the weight ratio of triethanolamine, ethanol amine, triisopropanolamine, and three are as follows: three
Ethanol amine: ethanol amine: triisopropanolamine=(0.8-1): (0.8-1): (0.5-1).
Preferably, the polyalcohol includes the weight ratio of diethylene glycol, ethylene glycol, glycerine, and three are as follows: diethyl two
Alcohol: ethylene glycol: glycerine=(0.8-1): (0.2-0.6): (0.2-0.6).
Preferably, the weight ratio of the triethanolamine, ethanol amine, triisopropanolamine are as follows: triethanolamine: ethanol amine: three is different
Propanolamine=1:0.8:0.5.
Preferably, the diethylene glycol, ethylene glycol, glycerine three weight ratio are as follows: diethylene glycol: ethylene glycol: the third three
Alcohol=1:0.4:0.4.
Preferably, the lignosulfonates are lignin sulfonic acid calcium salt, lignin sulfonic acid aluminium salt and Reveal
Mixture, weight ratio=(0.2-0.5) of the lignin sulfonic acid calcium salt, lignin sulfonic acid aluminium salt and Reveal:
(0.8-1): (0.2-0.5).
Compared with prior art, the present invention provides a kind of cement composite grinding additives, have following the utility model has the advantages that the cement
Composite grinding aids using environmental protection, are stablized, the raw material of low toxicity, it is ensured that each component reaches more preferably synergistic effect, is able to satisfy various objects
Expect the grinding aid requirement in the different grinding stages, play best grinding-aid effect, micronized particles eliminate particle agglomeration, improve grinding effect
Rate.
It is not directed to part in the device to be the same as those in the prior art or can be realized by using the prior art, structure of the invention
Simply, easy to operate.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.
Embodiment 1
A kind of cement composite grinding additive, cement grinding aid are composed of the following parts by weight: polyhydric alcohol amine 12-28
Part, 12-28 parts of polyalcohol, 6-13 parts of lignosulfonates, 3-7 parts of odium stearate, 6-12 parts of molasses, 2-6 parts of sodium sulphate, water
22-28 parts.
Further, polyhydric alcohol amine includes the weight ratio of triethanolamine, ethanol amine, triisopropanolamine, and three are as follows: three second
Hydramine: ethanol amine: triisopropanolamine=(0.8-1): (0.8-1): (0.5-1).
Further, polyalcohol includes the weight ratio of diethylene glycol, ethylene glycol, glycerine, and three are as follows: diethylene glycol:
Ethylene glycol: glycerine=(0.8-1): (0.2-0.6): (0.2-0.6).
Further, lignosulfonates are lignin sulfonic acid calcium salt, lignin sulfonic acid aluminium salt and Reveal
Mixture, weight ratio=(0.2-0.5): (0.8- of lignin sulfonic acid calcium salt, lignin sulfonic acid aluminium salt and Reveal
1): (0.2-0.5).
The principle of the present invention: the main function that grinding aid is added is the clustering phenomena for reducing or terminating particle, improves cement
Under fineness and specific surface area or grinding to same fineness, there is more significant yield when adding grinding aid grinding；Meanwhile it being added
Grinding aid be adsorbed in the surfaces of cement granules, intergranular friction and adhesive force can be reduced so that cement granules slide,
Its mobility also improves, so as to improve mill efficiency and cement performance.
Main component in molasses is glucide, containing more-OH, is readily adsorbed on cement granules or aquation produces
Object surface forms temporary protective film, shields excess charge, prevents particle agglomeration, improve the dispersibility of cement, this layer is temporarily protected
Film is gradually destroyed in hydration process, and glucide consumes in hydrated product, and aquation is gradually recovered normally, and paste structure is not
It will receive adverse effect, the development of strength of cement can also restore, it can also make hydrated product by absorption or complexing
Homoepitaxial, structure is finer and close, improves the intensity of petrifying water mudstone；As it can be seen that although molasses have deferred action, it still, will not be right
Strength of cement generates adverse effect.Polyalcohol belongs to polar organic matter, contains-OH and two kinds of end groups of-CH3 on hydroxypropyl.Hydroxyl-
OH is readily adsorbed on cement granules, makes the active site on polyol molecule shielding particle new life section, the alkyl-in polyalcohol
CH3 is flexed outward, and can prevent cement granules from reuniting, and improves dispersibility, therefore the grinding aid of polyol structure can both have been realized pair
The purpose of cement grinding improved efficiency also can control the hydration behavior of cement.
Embodiment 2
A kind of cement composite grinding additive, cement composite grinding additive are composed of the following parts by weight: polyhydric alcohol amine 12
Part, 12 parts of polyalcohol, 6 parts of lignosulfonates, 3 parts of odium stearate, 6 parts of molasses, 2 parts of sodium sulphate, 22 parts of water.
Further, polyhydric alcohol amine includes the weight ratio of triethanolamine, ethanol amine, triisopropanolamine, and three are as follows: three second
Hydramine: ethanol amine: triisopropanolamine=1:0.8:0.5.
Further, polyalcohol includes the weight ratio of diethylene glycol, ethylene glycol, glycerine, and three are as follows: diethylene glycol:
Ethylene glycol: glycerine=1:0.4:0.4.
Further, lignosulfonates are lignin sulfonic acid calcium salt, lignin sulfonic acid aluminium salt and Reveal
Mixture, weight ratio=0.2:0.8:0.2 of lignin sulfonic acid calcium salt, lignin sulfonic acid aluminium salt and Reveal.
Embodiment 3
A kind of cement composite grinding additive, cement composite grinding additive are composed of the following parts by weight: polyhydric alcohol amine 22
Part, 22 parts of polyalcohol, 10 parts of lignosulfonates, 5 parts of odium stearate, 9 parts of molasses, 4 parts of sodium sulphate, 25 parts of water.
Further, polyhydric alcohol amine includes the weight ratio of triethanolamine, ethanol amine, triisopropanolamine, and three are as follows: three second
Hydramine: ethanol amine: triisopropanolamine=0.8:0.9:0.7.
Further, polyalcohol includes the weight ratio of diethylene glycol, ethylene glycol, glycerine, and three are as follows: diethylene glycol:
Ethylene glycol: glycerine=0.8:0.9:0.6.
Further, lignosulfonates are lignin sulfonic acid calcium salt, lignin sulfonic acid aluminium salt and Reveal
Mixture, weight ratio=0.3:0.9:0.3 of lignin sulfonic acid calcium salt, lignin sulfonic acid aluminium salt and Reveal.
Embodiment 4
A kind of cement composite grinding additive, cement composite grinding additive are composed of the following parts by weight: polyhydric alcohol amine 28
Part, 28 parts of polyalcohol, 13 parts of lignosulfonates, 7 parts of odium stearate, 12 parts of molasses, 6 parts of sodium sulphate, 28 parts of water.
Further, polyhydric alcohol amine includes the weight ratio of triethanolamine, ethanol amine, triisopropanolamine, and three are as follows: three second
Hydramine: ethanol amine: triisopropanolamine=0.9:1:0.8.
Further, polyalcohol includes the weight ratio of diethylene glycol, ethylene glycol, glycerine, and three are as follows: diethylene glycol:
Ethylene glycol: glycerine=1:0.8:0.7.
Further, lignosulfonates are lignin sulfonic acid calcium salt, lignin sulfonic acid aluminium salt and Reveal
Mixture, weight ratio=0.5:1:0.5 of lignin sulfonic acid calcium salt, lignin sulfonic acid aluminium salt and Reveal.
Embodiment 5
The grinding aid 2 that is grouped as to the grinding aid 1 being grouped as according to the group of embodiment 2, according to the group of embodiment 3, according to
The grinding aid 3 that the group of embodiment 4 is grouped as is tested:
1, test raw material: clinker, chemical and mineral compositions are shown in Table 1；
Grinding aid: grinding aid 1, grinding aid 2, grinding aid 3 and without grinding aid.
The chemical component table % of 1 clinker of table
2, testing equipment: jaw crusher, φ 500mm × 500mm cement test small grinding, HY-10 type constant stress loading are complete
Automatic cement pressure resisting machine, CDT305-2 pressure-proof and snap-resistent integration testing machine, SPFsy-150 negative pressure sieve analysis instrument for cement fineness, SNRJ-
411BJJ-5 type cement mortar mixer, agitator for cement mortar, ZS-15 cement mortar plain bumper, cement fluidity tester,
Cement standard curing box, Lei Shi folder analyzer, net slurry normal consistency measurement and coagulation time tester, Lei Shi boiling tank,
JMB10kg electronic balance.
3, test method
Test water mud chamotte crushing is crossed into 7mm sieve；Weighing 4 parts of clinkers respectively is 5kg；Respectively by grinding aid 1,
Example weighs respectively according to a certain mass ratio for grinding aid 2, grinding aid 3, is configured to 20ml solution, stirs on magnetic stirrer
It being mixed after 30min with clinker, grinding machine grinding 35min is added, get rid of mill 5min, grinding aid is not added in last portion clinker,
Grinding 35min is directly carried out, mill 5min is got rid of.
4, test result
Each serial material after grinding carries out tailing over respectively the measurement of fineness, specific surface area, and with do not add grinding aid
Cement after monomer grinding compares.It is as shown in Table 2 below:
Grinding aid effect of 2 grinding aid of table
As shown in Table 2, the grinding-aid effect of three cement grinding aids is that grinding aid 2 is greater than grinding aid 1 greater than grinding aid 3, phase
For blank test, the grinding-aid effect of three kinds of grinding aids is obvious.Grinding aid has one to fineness and specific surface area is tailed over
Determine the improvement of degree, and effect is obvious.After composite grinding aids are added, 80 μm tail over from 9.4% and are reduced to 2.6%~3.1%；
45 μm tail over from 32% and are reduced to 12%~24%；Specific surface area increases to 400m2/kg~386m2/kg by 338m2/kg.
It is as shown in table 3 to the effect of clinker pressure-proof and snap-resistent intensity after grinding aid is added:
The effect of 3 grinding aid clinker pressure-proof and snap-resistent intensity of table
As shown in Table 3,3d, 28d bending and compressive strength after grinding aid is added are above blank test, and compounding grinding aid is added
After agent, 28d compression strength is up to 37.6MPa, 4.3MPa is improved compared with blank, with sodium sulphate in the component of three kinds of composite grinding aids
The increase of volume, 3d intensity gradually increase, but 28d intensity, gradually decrease；It is because sodium sulphate has that 3d intensity, which gradually increases,
Stronger effect, and 28d intensity gradually decreases, and is to be unfavorable for excitation granulation clinker because specific surface area gradually decreases
Activity.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (9)
1. a kind of cement composite grinding additive, it is characterised in that: the cement grinding aid is composed of the following parts by weight: more
First hydramine 12-28 parts, 12-28 parts of polyalcohol, 6-13 parts of lignosulfonates, 3-7 parts of odium stearate, 6-12 parts of molasses, sulfuric acid
2-6 parts of sodium, 22-28 parts of water.
2. a kind of cement composite grinding additive according to claim 1, it is characterised in that: the cement composite grinding additive by with
The group of lower parts by weight is grouped as: 12 parts of polyhydric alcohol amine, 12 parts of polyalcohol, and 6 parts of lignosulfonates, 3 parts of odium stearate, molasses
6 parts, 2 parts of sodium sulphate, 22 parts of water.
3. a kind of cement composite grinding additive according to claim 1, it is characterised in that: the cement composite grinding additive by with
The group of lower parts by weight is grouped as: 22 parts of polyhydric alcohol amine, 22 parts of polyalcohol, and 10 parts of lignosulfonates, 5 parts of odium stearate, sugar
9 parts, 4 parts of sodium sulphate, 25 parts of water of honey.
4. a kind of cement composite grinding additive according to claim 1, it is characterised in that: the cement composite grinding additive by with
The group of lower parts by weight is grouped as: 28 parts of polyhydric alcohol amine, 28 parts of polyalcohol, and 13 parts of lignosulfonates, 7 parts of odium stearate, sugar
12 parts, 6 parts of sodium sulphate, 28 parts of water of honey.
5. a kind of cement composite grinding additive according to claim 1, it is characterised in that: the polyhydric alcohol amine includes three ethyl alcohol
Amine, ethanol amine, triisopropanolamine, and the weight ratio of three are as follows: triethanolamine: ethanol amine: triisopropanolamine=(0.8-1):
(0.8-1):(0.5-1)。
6. a kind of cement composite grinding additive according to claim 1, it is characterised in that: the polyalcohol includes diethyl two
Alcohol, ethylene glycol, glycerine, and the weight ratio of three are as follows: diethylene glycol: ethylene glycol: glycerine=(0.8-1): (0.2-0.6):
(0.2-0.6)。
7. a kind of cement composite grinding additive according to claim 5, it is characterised in that: the triethanolamine, ethanol amine, three
The weight ratio of isopropanolamine are as follows: triethanolamine: ethanol amine: triisopropanolamine=1:0.8:0.5.
8. a kind of cement composite grinding additive according to claim 6, it is characterised in that: the diethylene glycol, ethylene glycol, third
The weight ratio of triol three are as follows: diethylene glycol: ethylene glycol: glycerine=1:0.4:0.4.
9. a kind of cement composite grinding additive according to claim 1, it is characterised in that: the lignosulfonates are wooden
The mixture of plain sulfonic acid calcium salt, lignin sulfonic acid aluminium salt and Reveal, the lignin sulfonic acid calcium salt, lignin sulfonic acid
The weight ratio of aluminium salt and Reveal are as follows: (0.2-0.5): (0.8-1): (0.2-0.5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811153325.8A CN109231875A (en) | 2018-09-30 | 2018-09-30 | A kind of cement composite grinding additive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811153325.8A CN109231875A (en) | 2018-09-30 | 2018-09-30 | A kind of cement composite grinding additive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109231875A true CN109231875A (en) | 2019-01-18 |
Family
ID=65055490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811153325.8A Pending CN109231875A (en) | 2018-09-30 | 2018-09-30 | A kind of cement composite grinding additive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109231875A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110304856A (en) * | 2019-07-25 | 2019-10-08 | 蒋毅平 | A kind of grinding aid preparation process |
| CN110330250A (en) * | 2019-07-25 | 2019-10-15 | 蒋毅平 | A kind of grinding aid agent prescription |
| CN110922943A (en) * | 2019-11-26 | 2020-03-27 | 贺州学院 | Inorganic powder grinding aid and preparation method thereof |
| CN111018390A (en) * | 2019-12-27 | 2020-04-17 | 广东六合新型建材有限公司 | Green grinding aid and preparation method thereof |
| CN113185183A (en) * | 2021-06-11 | 2021-07-30 | 赵佳男 | Cement mineralizer and preparation method thereof |
| CN113998918A (en) * | 2021-11-17 | 2022-02-01 | 山东键兴新材料科技有限公司 | Cement grinding aid and preparation method thereof |
| CN114763294A (en) * | 2021-05-31 | 2022-07-19 | 辽宁天宝华瑞建材有限公司 | Raw material vertical grinding aid and preparation method thereof |
| CN115028379A (en) * | 2022-05-20 | 2022-09-09 | 湖南中岩建材科技有限公司 | Cement raw material grinding aid and preparation method and application thereof |
| CN116023906A (en) * | 2022-12-30 | 2023-04-28 | 南京红宝丽醇胺化学有限公司 | Application of N, N, N-tri (2-hydroxypropyl) amine cyclic borate as inorganic nonmetallic mineral grinding aid |
| CN116283020A (en) * | 2023-03-24 | 2023-06-23 | 山东众森科技股份有限公司 | Efficient grinding-assisting mineralizing material for cement and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103951309A (en) * | 2014-04-14 | 2014-07-30 | 东源县弘朝科技有限公司 | Composite cement grinding aid and preparation method thereof |
| CN104844052A (en) * | 2015-05-27 | 2015-08-19 | 湖州华仑助剂科技有限公司 | Cement composite grinding aid |
-
2018
- 2018-09-30 CN CN201811153325.8A patent/CN109231875A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103951309A (en) * | 2014-04-14 | 2014-07-30 | 东源县弘朝科技有限公司 | Composite cement grinding aid and preparation method thereof |
| CN104844052A (en) * | 2015-05-27 | 2015-08-19 | 湖州华仑助剂科技有限公司 | Cement composite grinding aid |
Non-Patent Citations (1)
| Title |
|---|
| 中国水泥技术装备网等: "《水泥助磨剂技术推广与应用论文集》", 31 January 2009, 中国建材工业出版社 * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110304856B (en) * | 2019-07-25 | 2021-11-09 | 宜兴市国顺环保新材料科技有限公司 | Preparation process of grinding aid |
| CN110330250A (en) * | 2019-07-25 | 2019-10-15 | 蒋毅平 | A kind of grinding aid agent prescription |
| CN110304856A (en) * | 2019-07-25 | 2019-10-08 | 蒋毅平 | A kind of grinding aid preparation process |
| CN110922943A (en) * | 2019-11-26 | 2020-03-27 | 贺州学院 | Inorganic powder grinding aid and preparation method thereof |
| CN111018390A (en) * | 2019-12-27 | 2020-04-17 | 广东六合新型建材有限公司 | Green grinding aid and preparation method thereof |
| CN114763294B (en) * | 2021-05-31 | 2023-03-14 | 辽宁天宝华瑞建材有限公司 | Raw material vertical grinding aid and preparation method thereof |
| CN114763294A (en) * | 2021-05-31 | 2022-07-19 | 辽宁天宝华瑞建材有限公司 | Raw material vertical grinding aid and preparation method thereof |
| CN113185183A (en) * | 2021-06-11 | 2021-07-30 | 赵佳男 | Cement mineralizer and preparation method thereof |
| CN113998918A (en) * | 2021-11-17 | 2022-02-01 | 山东键兴新材料科技有限公司 | Cement grinding aid and preparation method thereof |
| CN115028379A (en) * | 2022-05-20 | 2022-09-09 | 湖南中岩建材科技有限公司 | Cement raw material grinding aid and preparation method and application thereof |
| CN115028379B (en) * | 2022-05-20 | 2023-07-07 | 湖南中岩建材科技有限公司 | Cement raw material grinding aid and preparation method and application thereof |
| CN116023906A (en) * | 2022-12-30 | 2023-04-28 | 南京红宝丽醇胺化学有限公司 | Application of N, N, N-tri (2-hydroxypropyl) amine cyclic borate as inorganic nonmetallic mineral grinding aid |
| CN116283020A (en) * | 2023-03-24 | 2023-06-23 | 山东众森科技股份有限公司 | Efficient grinding-assisting mineralizing material for cement and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109231875A (en) | A kind of cement composite grinding additive | |
| CN102838311B (en) | A kind of composite cement grinding aid and preparation method thereof | |
| CN101665339B (en) | Enhanced cement composite grinding aid | |
| CN102718430B (en) | Mud content inhibitor for concrete doped with polycarboxylic acid type water reducer and preparation method and application method of mud content inhibitor | |
| CN110563361B (en) | Low-doping cement chromium-removing grinding aid and preparation method thereof | |
| CN104529229B (en) | A kind of enhanced cement grinding aid | |
| CN108707460A (en) | A kind of soil-solidified-agent and preparation method thereof | |
| CN102503233A (en) | Novel liquid cement grinding aid and preparation method thereof | |
| CN110818310A (en) | Concrete glue reducing agent and preparation method and application thereof | |
| CN104529221A (en) | Cement grinding aid and using method thereof | |
| CN104446114A (en) | Cement grinding aid | |
| CN104446110A (en) | Liquid cement grinding aid with low alcohol amine content | |
| CN101921079B (en) | New cement grinding process | |
| CN102491672B (en) | Cement grinding aid and preparing method thereof | |
| CN102603227B (en) | Liquid cement grinding aid with low alcohol amine content and preparation method thereof | |
| CN108147692B (en) | Cement grinding aid and preparation method thereof | |
| CN101560075B (en) | Limestone powder mineral admixture special for concrete and preparation method thereof | |
| DE102020100549A1 (en) | High strength, low density Ceramsit proppant | |
| CN110981361A (en) | Radiation-proof concrete with high H element content and preparation method thereof | |
| CN111944483B (en) | Coal grinding aid and preparation method and application thereof | |
| CN118084429A (en) | Roller compacted concrete with low temperature rise, low elastic modulus and high ultimate tensile value and preparation method thereof | |
| CN112979202A (en) | Liquid modified excitant for finely ground and granulated blast furnace slag powder and preparation method thereof | |
| CN102417321B (en) | Slag composite grinding aid | |
| CN105254200A (en) | Cement grinding aid as well as preparation method and application method thereof | |
| CN105016640A (en) | Preparation method of concrete doped with waste glass as concrete fine aggregate |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190118 |
|
| RJ01 | Rejection of invention patent application after publication |