CN106673482A - Environment-friendly cement technological additive - Google Patents
Environment-friendly cement technological additive Download PDFInfo
- Publication number
- CN106673482A CN106673482A CN201611168698.3A CN201611168698A CN106673482A CN 106673482 A CN106673482 A CN 106673482A CN 201611168698 A CN201611168698 A CN 201611168698A CN 106673482 A CN106673482 A CN 106673482A
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- Prior art keywords
- component
- cement
- sodium
- environment protecting
- environment
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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
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention belongs to the technical field of environmental protection and specifically relates to an environment-friendly cement technological additive. The additive is prepared from the following raw materials: 10%-20% of grinding aid, 10%-20% of reinforcing component, 10%-20% of hexavalent chromium reducing component, 2%-5% of cosolvent and the balance of water. The environment-friendly cement technological additive has a good grinding-aiding effect; the output of the grinding machine can be increased by above 10%; the power consumption for grinding the cement is saved; the reinforcing effect is good; after the cement technological additive is added, the 3d strength of the cement is increased by above 4MPa and 28d strength is increased by above 6MPa; under the condition of unchanged cement performance, above 12% of the clinker dosage can be reduced; above 12% of the industrial residue is additionally used, so that the resource is saved and the environment is protected; a chromium removing effect is excellent; and more than 90% of water-soluble hexavalent chromium in the cement can be reduced.
Description
Technical field
The invention belongs to environmental technology field, and in particular to a kind of environment protecting cement technique additive.
Background technology
Water soluble hexavalent chromium (Cr (VI) or Cr6+) it is a kind of larger element of cement heavy metal poisoning, it can be by skin
Skin contact, respiratory tract suction, environment contact etc. approach do harm to huamn body, with people to environment and health problem increasingly
Pay attention to, the Cr VI problem in cement also increasingly attracts attention.After cement plus water stirring, wherein the water-solubility Cr (VI) for containing
Rapid dissolution, is now used in fresh cement paste, mortar or the concrete of plastic stage, if do not taken rational work to protect
Shield measure, due to the strong oxidizing property of Cr VI, be may result in for sensitive group it is allergic so that formation be difficult to what is cured
Cement Allergic contact eczema.Cr (VI) can also bring the serious adverse consequences, international cancer research aircraft such as carcinogenic, cause gene mutation
Cr VI is classified as carcinogen by structure (IARC), and whether suction or dermal contact, can trigger cancer.
CN102515622A discloses a kind of chromium removal grinding aid for cement and preparation method thereof, and the chromium removal grinding aid is in cement flour
The mill stage adds, while having concurrently except chromium effect, but should be powder state, addition except chromium grinding aid to cement by grinding aid, humidification
When need that special metering and conveying device is installed, it is inconvenient.
The content of the invention
The present invention is directed to existing issue, there is provided a kind of environment protecting cement technique additive of liquid, the additive is to cement
There are grinding aid, increasing action, and can effectively reduce the Cr VI in cement, reduction effect is good, addition is convenient.
A kind of environment protecting cement technique additive of the present invention, comprises the following raw materials by weight percent：
Grinding aid component：10%-20%
Enhancing component：10%-20%
Hexavalent chrome reduction component：10%-20%
Hydrotropy component：2%-5%
Balance of water；
The grinding aid component be triethanolamine, triisopropanolamine, hexamethylenetetramine, tripropylene glycol, diethanol amine,
One or more in dodecyltriethanolamine sulfate.Grinding aid component has preferable dispersiveness to cement granules, can have
Effect improves the mill efficiency of cement.
It is described enhancing component be sodium formate, magnesium sulfate, sodium acetate, Sodium Benzoate in one or more, can promote
Hydrated reaction of cement, improves strength of cement.
The hexavalent chrome reduction component be ascorbic acid, sodium formaldehyde sulfoxylate, sodium hypophosphite, sucrose, carbohydrazide in one kind or
Two or more, reduction components can be more stable trivalent chromium hexavalent chrome reduction.
The hydrotropy component be urea, sodium salicylate, acetamide in one or more, environment protecting cement can be increased
The solubility of active principle in technique additive.
Although all kinds of materials are classified according to grinding aid, reinforcing agent restoring function in the present invention, some materials have above-mentioned work(concurrently
Can, such as triethanolamine has and has significant grind -aiding effect to cement, and hydrated cementitious enhancing effect can be promoted also fine；Sucrose
In addition to restoring function, it may have enhancing function；Urea strengthens the effect with grinding aid in addition to hydrotropy function, also.With
Upper all kinds of materials are mutually cooperateed with, collective effect, make environment protecting cement technique additive of the present invention have to cement good grinding aid,
Enhancing and the function of reduction content of 6-valence Cr ions.
Beneficial effects of the present invention：
(1) grinding-aid effect is good, can improve mill hourly output more than 10%, saves cement grinding power consumption.
(2) enhancing effect is good, and after adding the cement industry additive, cement 3d intensity increases more than 4MPa, and 28d intensity increases
Plus more than 6MPa, in the case where keeping cement performance constant, more than 12% clinker dosage, multiplex more than 12% work can be reduced
Industry waste residue, economizes on resources, environmental protection.
(3) except chromium effect is good, it is possible to decrease water soluble hexavalent chromium more than 90% in cement.
Specific embodiment
Embodiment 1
A kind of environment protecting cement technique additive, is by the material composition of following percentage by weight：Grinding aid component 10%,
Enhancing component 10%, hexavalent chrome reduction component 10%, hydrotropy component 2%, balance of water；
The grinding aid component is by triethanolamine and triisopropanolamine by weight 1:1 composition；
The enhancing component is by sodium formate and magnesium sulfate by weight 1:1 composition；
The hexavalent chrome reduction component is by ascorbic acid and sodium formaldehyde sulfoxylate by weight 1:1 composition；
The hydrotropy component is by urea and sodium salicylate by weight 1:1 composition.
Embodiment 2
A kind of environment protecting cement technique additive, is made up of following raw material：Grinding aid component 20%, enhancing component
20%th, hexavalent chrome reduction component 20%, hydrotropy component 5%, balance of water；
The grinding aid component is dodecyltriethanolamine sulfate；
The enhancing component is by weight 2 by sodium acetate and Sodium Benzoate:1 composition；
The hexavalent chrome reduction component is sodium hypophosphite；
The hydrotropy component is urea.
Embodiment 3
A kind of environment protecting cement technique additive, is made up of following raw material：Grinding aid component 12%, enhancing component
15%th, hexavalent chrome reduction component 13%, hydrotropy component 3%, balance of water；
The grinding aid component by hexamethylenetetramine, tripropylene glycol and dodecyltriethanolamine sulfate by weight
3:2:1 composition；
The enhancing component is by Sodium Benzoate and magnesium sulfate by weight 1:1 composition；
The hexavalent chrome reduction component presses 1 by ascorbic acid, sodium formaldehyde sulfoxylate, sodium hypophosphite and carbohydrazide:3:2:1 weight
Than composition；
The hydrotropy component presses 2 by sodium salicylate and acetamide:1 weight is than composition.
Embodiment 4
A kind of environment protecting cement technique additive, is made up of following raw material：Grinding aid component 14%, enhancing component
16%th, hexavalent chrome reduction component 12%, hydrotropy component 4%, balance of water；
The grinding aid component is hexamethylenetetramine；
The enhancing component is sodium acetate；
The hexavalent chrome reduction component is carbohydrazide；
The hydrotropy component is sodium salicylate.
Embodiment 5
A kind of environment protecting cement technique additive, is made up of following raw material：Triethanolamine 5%, hexamethylenetetramine
2%th, diethanol amine 2%, dodecyltriethanolamine sulfate 4%, sodium formate 2%, magnesium sulfate 2%, ascorbic acid 2%, hang it is white
Block 1%, sucrose 5%, urea 2%, sodium salicylate 1%.
Embodiment 6
A kind of environment protecting cement technique additive, is made up of following raw material：Grinding aid component 16%, enhancing component
12%th, hexavalent chrome reduction component 14%, hydrotropy component 3%, balance of water.
Embodiment 7
A kind of environment protecting cement technique additive, is made up of following raw material：Grinding aid component 10%-20%, enhancing group
Divide 10%-20%, hexavalent chrome reduction component 10%-20%, hydrotropy component 2%-5%, balance of water；
The grinding aid component is hexamethylenetetramine 3%, tripropylene glycol 3%, diethanol amine 3%, dodecyl sulphur
Triethylenetetraminehexaacetic acid hydramine 3%, magnesium sulfate 1%, sodium acetate 4%, Sodium Benzoate 5%, ascorbic acid 1%, sodium formaldehyde sulfoxylate 2%, ortho phosphorous acid
Sodium 2%, sucrose 5%, carbohydrazide 2%, sodium salicylate 2%, acetamide 2%.
Comparative example 1
A kind of environment protecting cement technique additive, is made up of following raw material：Enhancing component 15%, hexavalent chrome reduction group
Divide 13%, hydrotropy component 3%, balance of water；
The enhancing component is by Sodium Benzoate and magnesium sulfate by weight 1:1 composition；
The hexavalent chrome reduction component presses 1 by ascorbic acid, sodium formaldehyde sulfoxylate, sodium hypophosphite and carbohydrazide:3:2:1 weight
Than composition；
The hydrotropy component presses 2 by sodium salicylate and acetamide:1 weight is than composition.
Comparative example 2
A kind of environment protecting cement technique additive, is made up of following raw material：Grinding aid component 12%, hexavalent chrome reduction group
Divide 13%, hydrotropy component 3%, balance of water；
The grinding aid component by for hexamethylenetetramine, tripropylene glycol and dodecyltriethanolamine sulfate by weight
Than 3:2:1 composition；
The hexavalent chrome reduction component presses 1 by ascorbic acid, sodium formaldehyde sulfoxylate, sodium hypophosphite and carbohydrazide:3:2:1 weight
Than composition；
The hydrotropy component presses 2 by sodium salicylate and acetamide:1 weight is than composition.
Comparative example 3
A kind of environment protecting cement technique additive, is made up of following raw material：Grinding aid component 12%, enhancing component
15%th, hydrotropy component 3%, balance of water；
The grinding aid component by for hexamethylenetetramine, tripropylene glycol and dodecyltriethanolamine sulfate by weight
Than 3:2:1 composition；
The enhancing component is by Sodium Benzoate and magnesium sulfate by weight 1:1 composition；
The hydrotropy component presses 2 by sodium salicylate and acetamide:1 weight is than composition.
Comparative example 4
A kind of environment protecting cement technique additive, is made up of following raw material：Grinding aid component 12%, enhancing component
15%th, hexavalent chrome reduction component 13%, balance of water；
The grinding aid component by for hexamethylenetetramine, tripropylene glycol and dodecyltriethanolamine sulfate by weight
Than 3:2:1 composition；
The enhancing component is by Sodium Benzoate and magnesium sulfate by weight 1:1 composition；
The hexavalent chrome reduction component presses 1 by ascorbic acid, sodium formaldehyde sulfoxylate, sodium hypophosphite and carbohydrazide:3:2:1 weight
Than composition；
Performance test
The additive progressive that the environment protecting cement technique additive and comparative example 1-4 that embodiment 1-7 is obtained are obtained
Can test, as a result see the table below 1.
The method that grinding-aid effect experiment is used is that additive is sprayed on into surface of material intergrinding, by clinker, gypsum, powder
Coal ash and slag ratio enter milling mill 35min, the model that grinding machine is produced by Wuxi Jianyi Instrument Machinery Co., Ltd. after coordinating
Ground for SM-500 is tested；
Cement mortar strength test adds additive, strength of cement mortar to determine and press GB/T17671-1999 when being shaping
《Test method for strength of hydraulic cement mortar (ISO methods)》Carry out；
Cr VI is with reference to GB31893-2015《The limitation and assay method of water soluble chromium (VI) in cement》Specified in side
Method is tested.
The additive the performance test results of table 1
Claims (9)
1. a kind of environment protecting cement technique additive, it is characterised in that be by the material composition of following percentage by weight：Grinding aid
Component 10%-20%, enhancing component 10%-20%, hexavalent chrome reduction component 10%-20%, hydrotropy component 2%-5%, surplus
It is water.
2. environment protecting cement technique additive according to claim 1, it is characterised in that the grinding aid component is three ethanol
One kind in amine, triisopropanolamine, hexamethylenetetramine, tripropylene glycol, diethanol amine, dodecyltriethanolamine sulfate
Or more than one.
3. environment protecting cement technique additive according to claim 2, it is characterised in that the grinding aid component is by six first
Urotropine, tripropylene glycol and dodecyltriethanolamine sulfate composition.
4. environment protecting cement technique additive according to claim 1, it is characterised in that the enhancing component is formic acid
One or more in sodium, magnesium sulfate, sodium acetate, Sodium Benzoate.
5. environment protecting cement technique additive according to claim 1, it is characterised in that the enhancing component is by benzoic acid
Sodium and magnesium sulfate are constituted.
6. environment protecting cement technique additive according to claim 1, it is characterised in that the hexavalent chrome reduction component is
One or more in ascorbic acid, sodium formaldehyde sulfoxylate, sodium hypophosphite, sucrose, carbohydrazide.
7. environment protecting cement technique additive according to claim 6, it is characterised in that the hexavalent chrome reduction component by
Ascorbic acid, sodium formaldehyde sulfoxylate, sodium hypophosphite and carbohydrazide composition.
8. environment protecting cement technique additive according to claim 1, it is characterised in that the hydrotropy component be urea,
One or more in sodium salicylate, acetamide.
9. environment protecting cement technique additive according to claim 8, it is characterised in that the hydrotropy component is by salicylic acid
Sodium and acetamide are constituted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611168698.3A CN106673482A (en) | 2016-12-16 | 2016-12-16 | Environment-friendly cement technological additive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611168698.3A CN106673482A (en) | 2016-12-16 | 2016-12-16 | Environment-friendly cement technological additive |
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| Publication Number | Publication Date |
|---|---|
| CN106673482A true CN106673482A (en) | 2017-05-17 |
Family
ID=58871016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611168698.3A Pending CN106673482A (en) | 2016-12-16 | 2016-12-16 | Environment-friendly cement technological additive |
Country Status (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109336458A (en) * | 2018-12-17 | 2019-02-15 | 杭州中荷智慧城市科技有限公司 | A kind of cement grinding aid |
| CN110296947A (en) * | 2019-07-30 | 2019-10-01 | 杭州鑫月建材有限公司 | A kind of cement Cr VI test powder indicator and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102515622A (en) * | 2011-12-07 | 2012-06-27 | 山东宏艺科技股份有限公司 | Chromium removal grinding aid for cement and preparation method thereof |
| CN103253876A (en) * | 2013-04-25 | 2013-08-21 | 南京工业大学 | Activating grinding aid for steel slag micro-powder, and preparation method thereof |
| CN104045254A (en) * | 2005-06-02 | 2014-09-17 | 格雷斯公司 | Biomass-derived grinding aids |
| CN105924029A (en) * | 2016-04-21 | 2016-09-07 | 张伟 | Liquid cement additive for reducing content of water-soluble Cr<6+> in cement |
-
2016
- 2016-12-16 CN CN201611168698.3A patent/CN106673482A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104045254A (en) * | 2005-06-02 | 2014-09-17 | 格雷斯公司 | Biomass-derived grinding aids |
| CN102515622A (en) * | 2011-12-07 | 2012-06-27 | 山东宏艺科技股份有限公司 | Chromium removal grinding aid for cement and preparation method thereof |
| CN103253876A (en) * | 2013-04-25 | 2013-08-21 | 南京工业大学 | Activating grinding aid for steel slag micro-powder, and preparation method thereof |
| CN105924029A (en) * | 2016-04-21 | 2016-09-07 | 张伟 | Liquid cement additive for reducing content of water-soluble Cr<6+> in cement |
Non-Patent Citations (4)
| Title |
|---|
| 中华人民共和国广东出入境检验检疫局: "《RoHS ＆ WEEE法规标准实用手册》", 31 May 2007 * |
| 何廷树等: "《土木工程材料》", 31 January 2013 * |
| 侯德榜等: "《制碱工业工作者手册》", 31 December 1962, 中国工业出版社 * |
| 李伟峰等: "助磨剂对转炉钢渣的粉磨及性能的影响", 《混凝土》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109336458A (en) * | 2018-12-17 | 2019-02-15 | 杭州中荷智慧城市科技有限公司 | A kind of cement grinding aid |
| CN109336458B (en) * | 2018-12-17 | 2021-08-17 | 鸡西市恒昌新材料科技有限公司 | Cement grinding aid |
| CN110296947A (en) * | 2019-07-30 | 2019-10-01 | 杭州鑫月建材有限公司 | A kind of cement Cr VI test powder indicator and preparation method thereof |
| CN110296947B (en) * | 2019-07-30 | 2022-02-08 | 杭州鑫月建材有限公司 | Cement hexavalent chromium test powder indicator and preparation method thereof |
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Application publication date: 20170517 |