CN1396136A - Composite silcate cement - Google Patents
Composite silcate cement Download PDFInfo
- Publication number
- CN1396136A CN1396136A CN01120430A CN01120430A CN1396136A CN 1396136 A CN1396136 A CN 1396136A CN 01120430 A CN01120430 A CN 01120430A CN 01120430 A CN01120430 A CN 01120430A CN 1396136 A CN1396136 A CN 1396136A
- Authority
- CN
- China
- Prior art keywords
- furnace slag
- cement
- composite
- gypsum
- boiling
- 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.)
- Pending
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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/08—Slag cements
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
A composite silicate cement No.325, 425, or 525 is prepared from the cinder of boiling kiln (15-50 wt. portions), silicate cement clinker (40-70), gypsum (8-10), and granular slags of blast furnace (10-20). Its advantages are use of waste as raw material, low basicity, high performance and low cost.
Description
The present invention relates to a kind of composite Portland cement, specifically with boiling furnace slag, Portland clinker, gypsum and granulated blast-furnace slag are the composite Portland cement of component.
Boiling furnace slag is the fluidizing furnace furnace bottom slag of burning low grade coal; because fluidizing furnace is the coal gangue of burning low grade coal or golf calorific value; help save energy and protection environment, therefore newly-built in recent years big power station, fertilizer plant etc. adopt fluidizing furnace mostly, also discharge a large amount of boiling furnace slags simultaneously.According to incompletely statistics, the whole nation has tens tame power station to adopt fluidizing furnace, and only just there is 300,000 tons boiling furnace slag in Anyuan mineral bureau power station every year, from the tons existing up to a million so far of founding the factory, promptly occupies a large amount of soils, also environment is caused secondary pollution.
Purpose of the present invention provides a kind of in order to make full use of the boiling furnace slag reasonable development that goes out of use just and makes composite Portland cement with boiling furnace slag, be used for general covil construction gelling material, thereby both can turn waste into wealth, and can improve environment again, also be that country saves a large amount of funds.
The object of the present invention is achieved like this:
Composite Portland cement is characterized in that 325#, 425#, 525# cement that it is made by the following weight proportion raw material:
Boiling furnace slag 15-50 part
Portland clinker 40-70 part
8-10 parts in gypsum
Granulated blast-furnace slag 10-20 part.
With boiling furnace slag, Portland clinker, gypsum and the granulated blast-furnace slag of said ratio, mix the back with shredder levigate to specific surface area be 400-500m
2/ Kg superfine powder.
The boiling furnace slag process statistical study that the present invention is used mainly contains SiO
2-54.4%, Al
2O
3-30.95%, Fe
2O
3-4.87%, CoS-1.53%, MgO-0.88%, K
2O-2.97%, NaO-1.68%, SO
3-0.30%, TiO
2-0.13%.Because boiling furnace slag SiO
2, Al
2O
3Content is up to more than 85%, and calcining temperature hangs down about 900 ℃, so have very high activity, it and granulated blast-furnace slag all belong to active addition, are used for concrete and can prevent that alkali from taking place, and early epistasis can be good simultaneously.
Owing to take technique scheme, make the technology of the present invention have following advantage and effect.
A) make full use of existing boiling furnace slag, both the contaminated solution problem also can turn waste into wealth, and was used for general covil construction gelling material, for country saves substantial contribution;
B) basicity is low, can suppress mud and coagulate native alkali;
C) degree of compactness height increases concrete weather resistance;
D) this composite Portland cement performance is good, cost is low, profitable.
Embodiment 1:
Get boiling furnace slag 50Kg, Portland clinker 70Kg, gypsum 10Kg, granulated blast-furnace slag 10Kg is ground to specific surface area 400m after the mixing
2The superfine powder of/kg is 325
#Cement detects through Chinese architecture material supply section institute, and 7 days ultimate compression strength of this composite Portland cement is 24Mpa, and folding strength is 5.4Mpa, and 28 days ultimate compression strength is 38Mpa, and folding strength 5.9Mpa meets national standard.
Embodiment 2:
Get boiling furnace slag 40Kg, Portland clinker 50Kg, gypsum 9Kg, granulated blast-furnace slag 15Kg is ground to specific surface area 450m after the mixing
2The superfine powder of/kg is 425
#Cement, 7 days ultimate compression strength of this composite Portland cement is 34Mpa after testing, and folding strength is 5.8Mpa, and 28 days ultimate compression strength is 49Mpa, and folding strength 6.8Mpa meets national standard.
Embodiment 3:
Get boiling furnace slag 15Kg, Portland clinker 40Kg, gypsum 8Kg, granulated blast-furnace slag 20Kg is ground to specific surface area 500m after mixing
2The superfine powder of/kg is 525
#Cement, after testing, 3 days ultimate compression strength of this composite Portland cement is 30Mpa, and folding strength is 5.8Mpa, and 28 days ultimate compression strength is 59.6Mpa, and folding strength 7.8Mpa meets national standard.
Claims (1)
1, a kind of composite Portland cement is characterized in that 325#, 425#, 525# cement that it is made by the following weight proportion raw material:
Boiling furnace slag 15-50 part
Portland clinker 40-70 part
8-10 parts in gypsum
Granulated blast-furnace slag 10-20 part
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01120430A CN1396136A (en) | 2001-07-13 | 2001-07-13 | Composite silcate cement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01120430A CN1396136A (en) | 2001-07-13 | 2001-07-13 | Composite silcate cement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1396136A true CN1396136A (en) | 2003-02-12 |
Family
ID=4664125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN01120430A Pending CN1396136A (en) | 2001-07-13 | 2001-07-13 | Composite silcate cement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1396136A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101272995B (en) * | 2005-09-28 | 2011-10-05 | 拉法基公司 | Hydraulic binder comprising a ternary acceleration system and mortars and concretes comprising one such binder |
-
2001
- 2001-07-13 CN CN01120430A patent/CN1396136A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101272995B (en) * | 2005-09-28 | 2011-10-05 | 拉法基公司 | Hydraulic binder comprising a ternary acceleration system and mortars and concretes comprising one such binder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |