CN1367151A - Cement additive - Google Patents
Cement additive Download PDFInfo
- Publication number
- CN1367151A CN1367151A CN 02113415 CN02113415A CN1367151A CN 1367151 A CN1367151 A CN 1367151A CN 02113415 CN02113415 CN 02113415 CN 02113415 A CN02113415 A CN 02113415A CN 1367151 A CN1367151 A CN 1367151A
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- CN
- China
- Prior art keywords
- slag
- cement
- coal ash
- nitre
- additive
- 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.)
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- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention relates to a cement additive produced by utilizing industrial waste slag. The said additive is applicable to cement production in various kilns, and is formed from coal ash, phosphocalcium slag, sulfuric acid residue, nitre slag and synergist, and the said synergist is potassium silicate or sodium silicate. This invented additive is favourable for environmental protection, can greatly reduce cement production cost, and can raise safety and cement strength.
Description
Technical field: the present invention relates to the technology of producing cement field and particularly relate to a kind of cement additive.
Background technology: the Cement Production process is that ore grinding is become powder, forms with ball mill grinding after the calcining again, and cement additive is exactly the adulterant that mixes grog when grog grinds.Commercially available adulterant has multiple, they can only save a part of grog, reducing the Cement Production cost in the low amplitude very much, simultaneously, soundness is not had beneficially altering,, can only make the cost of cement products reduce by 0.8/ ton as the uncommon general cement grinding aid of the U.S., simultaneously, its extravagent price overstocks the current assets of manufacturing enterprise in a large number.
Technology contents: goal of the invention of the present invention is intended to overcome above-mentioned prior art defective, provide a kind of that form by industrial residue, can reduce the manufacture of cement cost significantly, improve unit-hour output, can improve the cement additive of soundness of cement.
Goal of the invention of the present invention is achieved in that
Cement additive also is made up of by following weight percent following component:
Coal ash 22～28
Phosphorus calcium slag 28～38
Sulfate slag 32～42
Nitre slag 6～12
Synergistic agent 1～3
Wherein: the coal ash that coal ash preferably selects for use coal gangue burning back to form, phosphorus calcium slag are the slags behind the production calcium superphosphate; Sulfate slag is the slag behind the production sulfuric acid; The nitre slag is preferably produced the slag behind the saltcake; Increase
Imitating agent is potassium silicate or water glass.
The Chemical Composition of above-mentioned cement additive commercially available product is:
SiO
2 9.97～10.37％
Fe
2O
3 0.97～1.01％
Al
2O
3 5.07～5.29％
CaO 24.32～25.32％
MgO 1.16～1.20％
SO
3 37～38.51％
H
2O 10～14％
K
2O+Na
2O 0.68％
The loss on ignition of insolubles 0.58% above-mentioned adulterant is 18.27～19.01%, and fineness is 50 orders.Compared with prior art this adulterant has following advantage:
1, help environment protection: this adulterant mainly is to utilize the serious trade waste assembly of environmental pollution such as coal ash, phosphorus calcium slag, sulfate slag, nitre slag to form, and this class industrial residue is turned waste into wealth.Help environment protection, provide an effective way for solving this class industrial residue.
2, can reduce the manufacture of cement cost significantly: use this cement additive that the manufacture of cement cost is descended 8～10 yuan/ton;
3, stable in advance and raising strength of cement: can make stable in advance 1～3 class of cement, can improve strength of cement 1.5～2.6d in three days, 28 days raising 1～3d.
Workload when 4, improving platform: workload improves 10～25% when using this cement additive can make the cement ball-milling board.
Embodiment: in conjunction with the embodiments the present invention is further described: embodiment 1: cement additive also is made up of by following weight percent following component:
Coal ash 22
Phosphorus calcium slag 36
Sulfate slag 32
Nitre slag 8
Synergistic agent 2
Wherein synergistic agent is selected water glass for use, and the adulterant fineness is 50 orders.Embodiment 2: cement additive also is made up of by following weight percent following component:
Coal ash 28
Phosphorus calcium slag 30
Sulfate slag 32
Nitre slag 8
Synergistic agent 2
Wherein synergistic agent is selected water glass for use, and the adulterant fineness is 50 orders.Embodiment 3: cement additive also is made up of by following weight percent following component:
Coal ash 24
Phosphorus calcium slag 30
Sulfate slag 36
Nitre slag 9
Synergistic agent 1
Wherein synergistic agent is selected water glass for use, and the adulterant fineness is 50 orders.Embodiment 4: cement additive also is made up of by following weight percent following component:
Coal ash 28
Phosphorus calcium slag 28
Sulfate slag 32
Nitre slag 11
Synergistic agent 1
Wherein synergistic agent is selected potassium silicate for use, and the adulterant fineness is 50 orders.Embodiment 5: cement additive also is made up of by following weight percent following component:
Coal ash 22
Phosphorus calcium slag 30
Sulfate slag 33
Nitre slag 12
Synergistic agent 3
Wherein synergistic agent is selected potassium silicate for use, and the adulterant fineness is 50 orders.Embodiment 6: cement additive also is made up of by following weight percent following component:
Coal ash 24
Phosphorus calcium slag 30
Sulfate slag 36
Nitre slag 8
Potassium silicate 2
The fineness of adulterant is 50 orders.
Claims (1)
1, a kind of cement additive is characterized in that being made up of by following weight percent following component:
Coal ash 22～28
Phosphorus calcium slag 28～38
Sulfate slag 32～38
Nitre slag 6～12
Synergistic agent 1～3
Wherein: coal ash is the coal ash that coal gangue burning back forms;
Phosphorus calcium slag is the slag behind the production calcium superphosphate;
Sulfate slag is the slag behind the production sulfuric acid;
The nitre slag is the slag behind the production saltcake;
Synergistic agent is potassium silicate or water glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02113415 CN1216826C (en) | 2002-03-04 | 2002-03-04 | Cement additive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02113415 CN1216826C (en) | 2002-03-04 | 2002-03-04 | Cement additive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1367151A true CN1367151A (en) | 2002-09-04 |
| CN1216826C CN1216826C (en) | 2005-08-31 |
Family
ID=4742603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02113415 Expired - Fee Related CN1216826C (en) | 2002-03-04 | 2002-03-04 | Cement additive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1216826C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101921079B (en) * | 2010-01-19 | 2013-07-03 | 赤峰华益水泥有限责任公司 | New cement grinding process |
| CN108863139A (en) * | 2018-08-10 | 2018-11-23 | 杭州中齐新材料科技有限公司 | A kind of multi-functional composite cement grinding aid and preparation method thereof |
| CN110436810A (en) * | 2019-09-10 | 2019-11-12 | 四川省资中助利建材有限公司 | A kind of cement activity powder and preparation method thereof |
| CN115108748A (en) * | 2022-07-21 | 2022-09-27 | 西安天科建大新材料科技有限公司 | High-performance modified fly ash |
-
2002
- 2002-03-04 CN CN 02113415 patent/CN1216826C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101921079B (en) * | 2010-01-19 | 2013-07-03 | 赤峰华益水泥有限责任公司 | New cement grinding process |
| CN108863139A (en) * | 2018-08-10 | 2018-11-23 | 杭州中齐新材料科技有限公司 | A kind of multi-functional composite cement grinding aid and preparation method thereof |
| CN110436810A (en) * | 2019-09-10 | 2019-11-12 | 四川省资中助利建材有限公司 | A kind of cement activity powder and preparation method thereof |
| CN115108748A (en) * | 2022-07-21 | 2022-09-27 | 西安天科建大新材料科技有限公司 | High-performance modified fly ash |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1216826C (en) | 2005-08-31 |
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| PB01 | Publication | ||
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050831 Termination date: 20150304 |
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| EXPY | Termination of patent right or utility model |