CN1033505C - Non-clinker early-strength slag cement - Google Patents
Non-clinker early-strength slag cement Download PDFInfo
- Publication number
- CN1033505C CN1033505C CN92106614A CN92106614A CN1033505C CN 1033505 C CN1033505 C CN 1033505C CN 92106614 A CN92106614 A CN 92106614A CN 92106614 A CN92106614 A CN 92106614A CN 1033505 C CN1033505 C CN 1033505C
- Authority
- CN
- China
- Prior art keywords
- cement
- clinker
- slag
- early
- engineering
- 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.)
- Expired - Fee Related
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
- C04B7/00—Hydraulic cements
- C04B7/14—Cements containing slag
- C04B7/147—Metallurgical slag
- C04B7/153—Mixtures thereof with other inorganic cementitious materials or other activators
- C04B7/1535—Mixtures thereof with other inorganic cementitious materials or other activators with alkali metal containing activators, e.g. sodium hydroxide or waterglass
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention relates to a method for manufacturing early-strength non-clinker cement by steel slag and scoria. The early-strength non-clinker cement is formed by that the steel slag and the scoria are used as main composition materials, a certain quantity of potassium aluminum silicate (natrium) vitreous bodies are added to be used as an activator, and the main composition materials and the activator are milled together. The cement has a simple production process and little investment, a large quantity of industrial residues can be used, 40% of electricity of the ordinary portland cement of the same label is saved, and 80% of coal is saved; the cement has good performance, such as wear resistance, corrosion resistance, penetration resistance, etc., and is suitable for the construction of road engineering, coast hydraulic engineering, ordinary engineering and agricultural engineering. The present invention has the obvious characteristics of energy source saving, the development of energy sources, lightened environmental protection, etc. and is a new path of the development of cement industry.
Description
The present invention relates to a kind of non-clinker early-strength slag cement.
With slag and slag is that intrinsic material is produced steel slag cement, developed for three more than ten years in China, over past ten years, along with developing rapidly of progress of science and technology and Chinese national economy, the slag cement with little clinker has obtained bigger development, its ratio range is: slag 35-45%, slag 37-41%, Portland clinker 15-18%, gypsum 3-6%, these are 275 years old, 325,425 3 labels have similar physical and mechanical property to slag ore deposit silicate cement, and it is low to exist early strength, setting and harden waits problem slowly, this weakness on this cement performance has greatly limited its range of application, and the moon has hindered further developing of this cement.People's such as Japanese plum sea novel rapid hardening steel slag mineral water mud adopts chemical process, and it is low to have improved cement early strength basically, the setting and harden slow performance, but owing to can only produce the cement of 325,425 two labels.Thereby application and the performance of premium propertiess such as dross slag cement wear-resisting, microdilatancy against corrosion have been limited.
The objective of the invention is in order to overcome in the prior art early strength lowly, the shortcoming that setting and harden is slow provides a kind of early strength high clinker-less steel slag slag cement.
Non-clinker early-strength slag cement of the present invention, adopted the activity excitant of the molten vitreum of aluminum potassium silicate (sodium) as slag, its production method is: adopt feldspar 10% (weight), native alkali 50% (weight), rice husk 40% (weight) to found into vitreum in 950-1250 ℃ of temperature range, adopt air cooling or trickle air cooling all can.Exciting agent 8-12% (weight) and slag 20-68% (weight) and grinding of slag 24-68% (weight) are formed cement, require cement fineness 0.88mm square hole sieve to tail over and be not more than 5%, Blain specific surface is not less than 3000cm
2/ g.
The used slag of the present invention must meet the regulation of GBn 164-82, and granulated blast-furnace slag must meet the regulation of GB203.
The present invention founds the used ingredient requirement of exciting agent: Na in the native alkali
2CO
3Be not less than 65%, Na
2SO
4Be not less than 20% and (or replace alkali, Na with saltcake
2SO
410H
2O is not less than 90%); K in the feldspar
2O+Na
2O is not less than 14%; The pure inclusion-free of rice husk (available siliceous high raw material replaces).
The invention has the advantages that manufacturing process is simple, less investment, product cost is low, and is good in economic efficiency, the industrial residue consumption is big, and energy-saving effect is remarkable, reduces investment outlay 60% than producing with the ordinary Portland cement of label, product cost is hanged down 15-30%, and ton cement economize on electricity 40% economizes on coal 80%.
The excellent property of this cement, the early strength height, stable long-term strength increases, one day ultimate compression strength of 325#, 425# is not less than 12MPa, 525#, one day ultimate compression strength of 625# cement are not less than 18MPa, and it is low thoroughly to have solved the steel slag cement early strength, the problem that setting and harden is slow.This cement can be used for road engineering and coastal engineering and common engineering construction preferably, can give full play to its premium properties wear-resisting, against corrosion and microdilatancy.
Most preferred embodiment of the present invention:
| Sequence number | Slag % | Slag % | Exciting agent | Specific surface area cm 2/g | Standard consistency % | Time of coagulation | Anti-folding (MPa) | Resistance to compression (MPa) | |||||
| Initial set | Final set | 3 days | 7 days | 28 days | 3 days | 7 days | 28 days | ||||||
| 1 | 68 | 24 | 8 | 3650 | 28.1 | 0：50 | 1：20 | 48 | 59 | 70 | 20.5 | 31.0 | 46.3 |
| 2 | 40 | 50 | 10 | 3720 | 28.4 | 1：10 | 1：40 | 52 | 63 | 81 | 27.0 | 38.7 | 56.8 |
| 3 | 20 | 68 | 12 | 3940 | 29.6 | 1：15 | 1：40 | 58 | 68 | 86 | 32.0 | 48.5 | 65.0 |
Claims (6)
1. a slag, the early strong clinker-free cement of slag is characterized in that the slag by 24-68% (weight), and sodium aluminium silicate (potassium) exciting agent that 20-68% (weight) slag and 8-12% (weight) found is formed; Wherein exciting agent is that feldspar 10% (weight) is arranged, and molten system forms under 950-1250 ℃ temperature for native alkali 50% (weight) and rice husk 40% (weight).
2. according to the strong clinker-free cement morning of claim 1, the grinding fineness that it is characterized in that cement is 3000-3940cm
2/ g.
3. according to the strong clinker-free cement morning of claim 1, it is characterized in that with saltcake replacement native alkali wherein.
4. according to the strong clinker-free cement morning of claim 3, it is characterized in that the Na in the feldspar
2O and K
2O content sum is not less than 14%.
5. according to the strong clinker-free cement morning of claim 3, it is characterized in that the Na in the native alkali
2CO
3Content is not less than 65%, Na
2SO
4Content is not less than 20%.
6. according to the strong clinker-free cement morning of claim 4, it is characterized in that the Na in the saltcake
2SO
4.10H
2O content is not less than 90%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92106614A CN1033505C (en) | 1992-07-14 | 1992-07-14 | Non-clinker early-strength slag cement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92106614A CN1033505C (en) | 1992-07-14 | 1992-07-14 | Non-clinker early-strength slag cement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1081163A CN1081163A (en) | 1994-01-26 |
| CN1033505C true CN1033505C (en) | 1996-12-11 |
Family
ID=4942271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN92106614A Expired - Fee Related CN1033505C (en) | 1992-07-14 | 1992-07-14 | Non-clinker early-strength slag cement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1033505C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1056594C (en) * | 1996-12-23 | 2000-09-20 | 同济大学 | Batch for high performance concrete and process thereof |
| CN101880996B (en) * | 2009-05-07 | 2013-12-25 | 中冶天工上海十三冶建设有限公司 | Cement-stabilizing broken stone used for highway subgrade |
| CN101717217B (en) * | 2009-11-18 | 2012-06-27 | 中国建筑材料科学研究总院 | Slag composite exciting agent for concrete and application thereof |
| CN105859229B (en) * | 2016-03-31 | 2018-03-20 | 武汉理工大学 | A kind of slag make binder materials and fine aggregate without cement green mortar and preparation method thereof |
| CN112279605B (en) * | 2020-10-22 | 2022-04-29 | 湖北工业大学 | Underground filling cementing material and preparation method and application thereof |
| CN113698115B (en) * | 2021-10-20 | 2022-07-08 | 盐城工学院 | Active auxiliary cementing material and method for on-line tempering of steel slag |
-
1992
- 1992-07-14 CN CN92106614A patent/CN1033505C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1081163A (en) | 1994-01-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Address after: Ji'nan City, Shandong province 250022 Jiwei Road No. 106 Applicant after: Shandong Building Materials Industrial College Inventor after: Zhang Decheng Inventor after: Bai Yilian Inventor after: Li Shuhai Inventor after: Zhao Yuzhen Inventor after: Ding Zhu Inventor after: Lu Lingchao Address before: Shandong city of Ji'nan province qixianzhuang Institute of building materials Applicant before: Zhang Decheng Inventor before: Zhang Decheng Applicant before: Bai Yilian Inventor before: Bai Yilian Applicant before: Li Shuhai Inventor before: Li Shuhai Applicant before: Zhao Yuzhen Inventor before: Zhao Yuzhen |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: ZHANG DECHENG; BO YILIAN; LI SHUHAI; ZHAO YUZHEN TO: ZHANG DECHENG; BO YILIAN; LI SHUHAI; ZHAO YUZHEN; DING ZHU; LU LINGCHAO; APPLICANT; FROM: ZHANG DECHENG; BO YILIAN; LI SHUHAI; ZHAO YUZHEN TO: SHANDONG BUILDING MATERIALS INDUSTRY INSTITUTE |
|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |