CN1149562A - High-strength steel slag and slag cement - Google Patents
High-strength steel slag and slag cement Download PDFInfo
- Publication number
- CN1149562A CN1149562A CN95119002A CN95119002A CN1149562A CN 1149562 A CN1149562 A CN 1149562A CN 95119002 A CN95119002 A CN 95119002A CN 95119002 A CN95119002 A CN 95119002A CN 1149562 A CN1149562 A CN 1149562A
- Authority
- CN
- China
- Prior art keywords
- slag
- cement
- gypsum
- fineness
- strength
- 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.)
- Granted
Links
- 239000002893 slag Substances 0.000 title claims abstract description 64
- 239000004568 cement Substances 0.000 title claims abstract description 42
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 12
- 239000010959 steel Substances 0.000 title claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 4
- 229910052602 gypsum Inorganic materials 0.000 claims description 15
- 239000010440 gypsum Substances 0.000 claims description 15
- 238000000227 grinding Methods 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 6
- 239000000470 constituent Substances 0.000 claims 1
- 230000007613 environmental effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 235000003140 Panax quinquefolius Nutrition 0.000 description 2
- 240000005373 Panax quinquefolius Species 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 239000011362 coarse particle Substances 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- -1 grog Substances 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000009837 dry grinding Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000003469 silicate cement Substances 0.000 description 1
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
- C04B7/21—Mixtures thereof with other inorganic cementitious materials or other activators with calcium sulfate containing activators
-
- 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 steel slag and slag cement has the advantages of simple production process, low production cost, full utilization of resources, environmental protection and the like, but the cementThe performance is poor, the market demand is not met, and the cement production development is limited. The invention provides a new production process of steel slag and slag cement, and the produced cement reaches 625#The cement has the advantages of excellent performance, simple process and low production cost, and can promote the production and development of the steel slag and slag cement.
Description
What the present invention relates to is a kind of high-strength slag cement with steel mill slag, is particularly useful for the various engineerings higher to requirement of strength.
Dross slag cement in the past is a main raw material with the slag more than 80%, slag, mixes small amounts of silicate cement clinker and gypsum, and is levigate together to 3500cm
2/ g～4000cm
2A kind of mixture or hydraulic cementing materials about/g.This cement has that production technique is simple, less investment, the saving energy, cost are low, turn waste into wealth, save in a large number advantages such as ploughing, improve environmental pollution, still has slow, weakness such as early strength is low, cement mark is low time of coagulation on performance.People are with adding activity excitant, and the ways such as blended amount that increase grog are improved cement performance, but these ways have increased the Cement Production cost, and performance is improved again not quite.Dross slag cement production once had certain development, had many plant produced to cross this cement, and drug on the market owing to cement of low index on the market, supply falls short of demand for cement of high index, these factories can't improve the performance of cement again, and meeting the market requirement is so stop to produce dross slag cement one after another.
The objective of the invention is to use simple technology, lower cost produces the high-strength slag cement with steel mill slag of excellent property, satisfies the demand in market, promote the dross slag cement production development, make slag obtain comprehensive utilization, turn waste into wealth, save the resource and the energy, improve environment.
High-strength slag cement with steel mill slag of the present invention is formed no particular requirement to cement, and is just passable by general dross slag cement proportioning, is by weight ratio: slag 35～45%, slag 35～60%, Portland clinker 5～20%, gypsum 38%.Can add activity excitant in case of necessity, increase the consumption of heat material or without grog.Slag refers to open hearth or bessemer furnace slag, and slag is granulated blast-furnace slag or granulation cupola furnace scum.
The method of in the past producing dross slag cement is that slag, slag, Portland clinker and gypsum are put into the grinding machine mix grinding by proportioning, and the cement mark of Sheng Chaning is low in this way, even grind very carefully, also difficulty reaches than high grade.Test shows, when being milled down to 5000cm2/g, and cement, intensity reaches maximum, about the about 50MPa of ultimate compression strength, increases fineness again, and intensity will not increase; When fineness surpasses 6000cm
2During/g, cement is meticulous, and water requirement increases, and cement stone mesoporosity rate increases, and intensity reduces.The cement mark of Sheng Chaning generally reaches 325# in this way
The invention is characterized in that in the slag mineral water mud, each forms the fineness difference, scoriaceous fineness ratio slag, grog and gypsum are thin, and fineness is greater than 4500cm
2/ g, preferably 6000cm
2/ g～7500cm
2Between/the g; Slag, grog, gypsum are identical with fine grinding in the past, and fineness is 3200cm
2/ g～4400cm
2About/g, be preferably in 3500cm
2/ g～4000cm
2Between/the g.The independent grinding of slag can mix through mixing tank with good slag, grog, the gypsum of mill through the slag of grinding, also can mix in the grinding machine when slag, grog, gypsum grinding.
Cement of the present invention, because the fineness difference of each composition, promptly have coarse particles that fine particle is arranged again, fine particle fills up the hole between the coarse particles, and the cement stone of formation is closely knit especially, again because slag is thin especially, given full play to activity, hydration reaction has been accelerated, and carried out fully, therefore this cement setting time is short, intensity is high especially, and its label can reach 625#.Because this cement has intensity height, microdilatancy, advantage such as water permeability resistance is good, corrosion-resistant, hydration heat is low, workability is good almost can satisfy the needs of all civil engineering works.
Below be one embodiment of the present of invention.
1, slag, with the general granulated blast-furnace slag of Wuhan Iron and Steel Plant, the oven dry grinding is to 7500cm
2/ g.
2, slag, the steel converter slag of useing force, with grog, gypsum grinding to 3500cm
2/ g.
3, two kinds of good powder uniform mixing of above mill, mixed dross slag cement are formed (weight) and are:
Slag 45% slag 35% grog 15% gypsum 5%
The performance of made cement is as follows:
| Standard consistency (%) | Time of coagulation (time: divide) | Stability | Ultimate compression strength (MPa) | Folding strength (MPa) | |||||
| Initial set | Final set | 3 days | 7 days | 28 days | 3 days | 7 days | 28 days | ||
| ????27.50 | ????0∶50 | ????2∶00 | Qualified | 13.1 | ?39.9 | ?69.7 | 2.8 | ??7.7 | 9.0 |
Claims (3)
1, a kind of high-strength slag cement with steel mill slag of being made up of slag, slag, Portland clinker and gypsum is characterized in that the fineness difference of each constituent, specifically:
(1) scoriaceous fineness is greater than 4500cm
2/ g;
(2) fineness of slag, Portland clinker and gypsum is 3200cm
2/ g～4400cm
2About/g;
3. scoriaceous fineness is greater than the fineness of slag, Portland clinker and gypsum.
2, according to claim 1, the manufacture method of this cement is characterized in that, the independent grinding of slag, and good with mill then slag, Portland clinker and gypsum uniform mixing become high-strength slag cement with steel mill slag; Also can become high-strength slag cement with steel mill slag mill slag well with slag, Portland clinker and gypsum mix grinding.
3, according to claim 1, this cement is formed (weight), it is characterized in that:
Slag=35～45% slags=35～60%
Portland clinker=5～20% gypsum=3～8%
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95119002A CN1068858C (en) | 1995-11-09 | 1995-11-09 | High-strength steel slag and slag cement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95119002A CN1068858C (en) | 1995-11-09 | 1995-11-09 | High-strength steel slag and slag cement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1149562A true CN1149562A (en) | 1997-05-14 |
| CN1068858C CN1068858C (en) | 2001-07-25 |
Family
ID=5081867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95119002A Expired - Fee Related CN1068858C (en) | 1995-11-09 | 1995-11-09 | High-strength steel slag and slag cement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1068858C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102491656A (en) * | 2011-11-11 | 2012-06-13 | 中冶宝钢技术服务有限公司 | Pulverized steel slag gelatinization material |
| CN102491776A (en) * | 2011-11-11 | 2012-06-13 | 中冶宝钢技术服务有限公司 | Perforated brick including steel slag powder gelatificaiton material |
| CN102531480A (en) * | 2011-12-28 | 2012-07-04 | 武汉钢铁集团开圣科技有限责任公司 | Gelatinizing agent of mine fillers |
| CN102557495A (en) * | 2012-02-27 | 2012-07-11 | 武汉理工大学 | Method for enhancing early strength of steel slag cement |
| CN102666423A (en) * | 2009-11-05 | 2012-09-12 | 圣戈班韦伯公司 | Construction material binders |
| CN108264250A (en) * | 2018-03-12 | 2018-07-10 | 四川德胜集团钒钛有限公司 | A kind of method using slag production cement |
| CN113354308A (en) * | 2021-07-27 | 2021-09-07 | 马鞍山利民星火冶金渣环保技术开发有限公司 | Low-temperature-resistant steel slag cement, manufacturing process and concrete curing process |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1036750A (en) * | 1989-03-17 | 1989-11-01 | 安阳市水泥厂 | Dross slag cement (energy-saving) |
| CN1065849A (en) * | 1991-04-17 | 1992-11-04 | 文铁生 | Steel slag cement |
-
1995
- 1995-11-09 CN CN95119002A patent/CN1068858C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102666423A (en) * | 2009-11-05 | 2012-09-12 | 圣戈班韦伯公司 | Construction material binders |
| CN102491656A (en) * | 2011-11-11 | 2012-06-13 | 中冶宝钢技术服务有限公司 | Pulverized steel slag gelatinization material |
| CN102491776A (en) * | 2011-11-11 | 2012-06-13 | 中冶宝钢技术服务有限公司 | Perforated brick including steel slag powder gelatificaiton material |
| CN102531480A (en) * | 2011-12-28 | 2012-07-04 | 武汉钢铁集团开圣科技有限责任公司 | Gelatinizing agent of mine fillers |
| CN102531480B (en) * | 2011-12-28 | 2014-02-26 | 武汉钢铁集团开圣科技有限责任公司 | Gelatinizing agent of mine fillers |
| CN102557495A (en) * | 2012-02-27 | 2012-07-11 | 武汉理工大学 | Method for enhancing early strength of steel slag cement |
| CN108264250A (en) * | 2018-03-12 | 2018-07-10 | 四川德胜集团钒钛有限公司 | A kind of method using slag production cement |
| CN113354308A (en) * | 2021-07-27 | 2021-09-07 | 马鞍山利民星火冶金渣环保技术开发有限公司 | Low-temperature-resistant steel slag cement, manufacturing process and concrete curing process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1068858C (en) | 2001-07-25 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhang Jiacheng Document name: payment instructions |
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| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhang Jiacheng Document name: Notification of Termination of Patent Right |
|
| 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 |