CN105152569A - Compound cement grinding agent and method for applying same - Google Patents
Compound cement grinding agent and method for applying same Download PDFInfo
- Publication number
- CN105152569A CN105152569A CN201510543164.3A CN201510543164A CN105152569A CN 105152569 A CN105152569 A CN 105152569A CN 201510543164 A CN201510543164 A CN 201510543164A CN 105152569 A CN105152569 A CN 105152569A
- Authority
- CN
- China
- Prior art keywords
- cement
- grinding aid
- cement grinding
- parts
- grinding agent
- 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.)
- Withdrawn
Links
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention belongs to cement auxiliaries, and particularly relates to a compound cement grinding agent and a method for applying the same. The compound cement grinding agent comprises, by weight, 5-20 parts of polycarboxylate, 1-9 parts of reinforcing agents, 1-10 parts of fatty alcohol polyoxyethylene ether sulfate, 0.1-1 part of urea and 14-45 parts of water. The compound cement grinding agent and the method have the advantages that the grinding agent is used in cement processing procedures, accordingly, cement particle diameter adjusting effects can be realized, the strength of cement can be improved, and energy consumption can be reduced in cement production procedures.
Description
Technical field
The invention belongs to cement adjuvant, be specifically related to a kind of composite cement grinding aid, also relate to its using method.
Background technology
The grinding of cement is mutually collided by the grinding element in ball mill, extrude, rubbed.When after cement granules refinement, cement particle surface levigate on the one hand can be comparatively large, has the tendency of automatically reuniting between subparticle; The qualified fine powder of another aspect, as do not drawn off outside mill in time, can cause and stick with paste the forging of ball paste, thus cut down impact in ball mill, consume grinding energy, had a strong impact on the mill efficiency of ball mill.
Cement granules particle diameter is 3 ~ 32
μmin time, contributes comparatively greatly strength of cement, and cement granules particle diameter is 3 ~ 32
μmmore, strength of cement is larger.In the process of cement grinding, add a small amount of cement grinding aid, effectively can prevent fine grain automatic reunion, improve the mill efficiency of ball mill.At increase yield under the condition that the fineness of cement is identical with the watt consumption of grinding machine, or can increase the specific surface area of cement when cement output and mill power consume identical, optimize cement granules grating, and then improve intensity and the quality of cement.
At present, the grinding aid main component of commercial applications is amine organism, polyalcohols organism and inorganic salt, this liquid grinding aid composite by multiple small-molecule substance has a lot of drawback in use, grinding aid ability has the upper limit, easily occur that cement products particle distribution range is wide, product runs thick phenomenon, causes strength of cement to reduce, and even affects strength of cement grade.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of composite cement grinding aid, reduces the energy consumption in cement production process, regulates cement granules particle diameter, refinforced cement intensity simultaneously, reduces cement clinker consumption.The different organism of maleic anhydride, trolamine and allyl polyglycol 3 kinds carries out the polycarboxylate polymer being polymerized to obtain, and various functional group synergy, its effect is much larger than the grind-aiding effect of simple function group.
Technical problem to be solved by this invention is achieved by the following technical programs:
A kind of composite cement grinding aid, is made up of the component of following parts by weight:
Polycarboxylate 5 ~ 20 parts;
Toughener 1 ~ 9 part;
Fatty alcohol polyoxyethylene ether sulfate 1 ~ 10 part;
0.1 ~ 1 part, urea;
14 ~ 45 parts, water.
Described polycarboxylate is by maleic anhydride, trolamine and allyl polyglycol copolymerization.Molecular weight ranges is 300 ~ 700, and maleic anhydride weight ratio accounts for 20 ~ 50%, and trolamine weight ratio accounts for 20 ~ 40%.By each functional group grafting in maleic anhydride, trolamine and allyl polyglycol in high molecular polymer, this polymkeric substance has multipolarity dot structure, be adsorbed on the surface of cement granules by a polar group, be connected with other grinding aid component by another polar group again, be connected with each other, form a stable film being adsorbed on cement surface, improve grinding aid to cement granules absorption property.The long side-chain structure simultaneously designed, sterically hindered by organic molecule, slow down the fine grain agglomeration tendency of cement, improve the dispersing property of grinding aid, by adjusting the ratio of each hydrophilic, oleophylic functional group, polymkeric substance can be made to have diminishing, air-entraining function concurrently, the cement and other cement additive adaptability problems of mixing grinding aid can be solved.
Described toughener is calcium formiate, at least one in calcium chloride, nitrocalcite.
The described fatty alcohol polyoxyethylene ether sulfate structure ethylene oxide polymerization degree is 3 ~ 10.Fatty alcohol polyoxyethylene ether sulfate can be adsorbed on cement surface, can play interfacial effect and mechanics usefulness, makes cement surface Zeta potential there occurs change, forms electrostatic double layer, stops the polymerization of cement granules.
A using method for above-mentioned composite cement grinding aid, be in cement, add described cement grinding aid, addition accounts for 0.15 ~ 3% of cement gross weight.
The present invention has following beneficial effect:
In composite cement grinding aid of the present invention, the different organism of maleic anhydride, trolamine and allyl polyglycol 3 kinds carries out the polycarboxylate polymer being polymerized to obtain, various functional group synergy, its effect is much larger than the grind-aiding effect of simple function group, therefore the present invention can reduce the energy consumption in cement production process, regulate cement granules particle diameter, refinforced cement intensity, reduce cement clinker consumption.
Embodiment
Below in conjunction with embodiment, the present invention will be described in detail, and embodiment is only the preferred embodiment of the present invention, is not limitation of the invention, and table one is the specific embodiment 1,2,3 of cement grinding aid of the present invention:
Table one
The preparation method of above-described embodiment is approach well known, does not describe in detail at this.
Added in cement by the cement grinding aid that embodiment 1,2,3 obtains and carry out performance test, the addition of grinding aid is 0.2%, and the concrete composition of concrete experiment parameter and cement is in table two:
table two
The cement size distribution table three that experiment 1-4 obtains:
table three
As can be seen from table two and table three, add the cement particle diameter of cement grinding aid 3 ~ 32
μmmaximum, strength of cement is the highest, adds grinding aid strength of cement and is all better than the cement not adding cement grinding aid.The particle diameter wherein testing 4 cement is best, and strength of cement is the highest.
Claims (6)
1. a composite cement grinding aid, is characterized in that, is made up of the component of following parts by weight:
Polycarboxylate 5 ~ 20 parts;
Toughener 1 ~ 9 part;
Fatty alcohol polyoxyethylene ether sulfate 1 ~ 10 part;
0.1 ~ 1 part, urea;
14 ~ 45 parts, water.
2. composite cement grinding aid according to claim 1, is characterized in that, described polycarboxylate is maleic anhydride, trolamine and allyl polyglycol polymkeric substance.
3. composite cement grinding aid according to claim 2, is characterized in that, described polycarboxylate molecular weight ranges is 300 ~ 700, and maleic anhydride weight ratio accounts for 20 ~ 50%, and trolamine weight ratio accounts for 20 ~ 40%.
4. composite cement grinding aid according to claim 1, is characterized in that, described toughener is calcium formiate, at least one in calcium chloride, nitrocalcite.
5. composite cement grinding aid according to claim 1, is characterized in that, the described fatty alcohol polyoxyethylene ether sulfate structure ethylene oxide polymerization degree is 3 ~ 10.
6. a using method for composite cement grinding aid described in claim 1, is characterized in that, adds described cement grinding aid in cement, and addition accounts for 0.15 ~ 3% of cement gross weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510543164.3A CN105152569A (en) | 2015-08-31 | 2015-08-31 | Compound cement grinding agent and method for applying same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510543164.3A CN105152569A (en) | 2015-08-31 | 2015-08-31 | Compound cement grinding agent and method for applying same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105152569A true CN105152569A (en) | 2015-12-16 |
Family
ID=54793691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510543164.3A Withdrawn CN105152569A (en) | 2015-08-31 | 2015-08-31 | Compound cement grinding agent and method for applying same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105152569A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112047658A (en) * | 2020-09-14 | 2020-12-08 | 株洲宏信科技发展有限公司 | Cement grinding aid, preparation method thereof and application thereof in interior decoration cement |
| CN114105652A (en) * | 2021-11-19 | 2022-03-01 | 贵州万为金科特种建材有限公司 | Composite ceramic water reducing agent |
-
2015
- 2015-08-31 CN CN201510543164.3A patent/CN105152569A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112047658A (en) * | 2020-09-14 | 2020-12-08 | 株洲宏信科技发展有限公司 | Cement grinding aid, preparation method thereof and application thereof in interior decoration cement |
| CN114105652A (en) * | 2021-11-19 | 2022-03-01 | 贵州万为金科特种建材有限公司 | Composite ceramic water reducing agent |
| CN114105652B (en) * | 2021-11-19 | 2023-05-16 | 广东金厦瓷业有限公司 | Composite ceramic water reducing agent |
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 | |
| CN102153308B (en) | Cement liquid grinding aid and preparation method thereof | |
| CN105130259A (en) | Cement grinding aid and using method thereof | |
| CN104177561B (en) | A kind of polycarboxylate water-reducer with slow release and resistance to mud and its preparation method and application | |
| CN101337788A (en) | Modified triethanolamine, preparation method and application thereof | |
| CN104891844B (en) | A kind of cement grinding aid | |
| CN102603996A (en) | Ether type polycarboxylic acid slump retaining agent and preparation method thereof | |
| CN105776933A (en) | Mud-resisting type polycarboxylate-type water reducer and preparation method and use method thereof | |
| CN105084802A (en) | High-limestone-flour-adulterate-amount composite enhanced grinding aid for cement and preparation method of high-limestone flour-adulterate amount composite enhanced grinding aid | |
| CN101580394B (en) | Polymeric dispersant used for nano ceramic powder and preparation method thereof | |
| CN104861125A (en) | Slump retaining type polyether polycarboxylic acid reducing agent and preparation method thereof | |
| CN108558262A (en) | A kind of cement grinding aid | |
| CN103253886A (en) | Polycarboxylate superplasticizer synergist and preparation method thereof | |
| CN104987723A (en) | Modified calcium carbonate with good antistatic effect and preparation method thereof | |
| CN103951330A (en) | High-performance bare concrete for bridges and preparation method of concrete | |
| CN105152569A (en) | Compound cement grinding agent and method for applying same | |
| CN106380110A (en) | Graphene oxide modified cement grinding aid and preparation method thereof | |
| CN105601154B (en) | A kind of graphene reinforcing agent and preparation method thereof | |
| CN109320125B (en) | Concrete admixture, preparation method and use method thereof | |
| CN102659338B (en) | Polycarboxylic water reducer applicable to manufactured sand and preparation method of polycarboxylic water reducer | |
| CN102001842B (en) | Efficient cement grinding aid and preparation method thereof | |
| CN103432958B (en) | Calcium carbonate surface-active agent | |
| CN116283121A (en) | High-fluidity foam concrete and preparation method thereof | |
| Peng et al. | Effect of molecular weight of polycarboxylate-type superplasticizer on the rheological properties of cement pastes | |
| CN102863176B (en) | High grinding temperature compound liquid grinding aid and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20151216 |