CN101798186A - High performance cement based on granularity allocation and preparation method thereof - Google Patents
High performance cement based on granularity allocation and preparation method thereof Download PDFInfo
- Publication number
- CN101798186A CN101798186A CN201010113503A CN201010113503A CN101798186A CN 101798186 A CN101798186 A CN 101798186A CN 201010113503 A CN201010113503 A CN 201010113503A CN 201010113503 A CN201010113503 A CN 201010113503A CN 101798186 A CN101798186 A CN 101798186A
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- specific surface
- surface area
- cement
- powder
- slag powders
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- 239000004568 cement Substances 0.000 title claims abstract description 72
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 239000000843 powder Substances 0.000 claims abstract description 74
- 239000002893 slag Substances 0.000 claims abstract description 34
- 235000019738 Limestone Nutrition 0.000 claims abstract description 19
- 239000006028 limestone Substances 0.000 claims abstract description 19
- 238000000227 grinding Methods 0.000 claims description 26
- 239000010440 gypsum Substances 0.000 claims description 8
- 229910052602 gypsum Inorganic materials 0.000 claims description 8
- 150000001875 compounds Chemical class 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 2
- 239000002245 particle Substances 0.000 abstract description 13
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 8
- 239000011707 mineral Substances 0.000 abstract description 8
- 239000000203 mixture Substances 0.000 abstract description 4
- 235000013312 flour Nutrition 0.000 abstract 1
- 239000011505 plaster Substances 0.000 abstract 1
- 238000009826 distribution Methods 0.000 description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- 230000036571 hydration Effects 0.000 description 6
- 238000006703 hydration reaction Methods 0.000 description 6
- 238000005303 weighing Methods 0.000 description 5
- 239000003638 chemical reducing agent Substances 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- 230000005284 excitation Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 150000002790 naphthalenes Chemical class 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 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
-
- 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)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses high performance cement based on granularity allocation, comprising the following compositions in percentage by weight: 70-80 percent of ground pulverized clinker, 5-10 percent of limestone flour with the specific surface area of 1000+/-100 m<2>/kg, 5-10 percent of slag powder with the specific surface area of 180+/-10 m<2>/kg, 5-20 percent of slag powder with the specific surface area of 450+/-50 m<2>/kg, wherein the specific surface area of the ground pulverized clinker is 350+/-10 m<2>/kg, the uniformity coefficient n value of the ground pulverized clinker is 1.2-1.3, the characteristic particle size is 10-12 microns, and plaster compositions used for slow setting are contained in the ground pulverized clinker. The invention also discloses a preparation method of the high performance cement. Compared with cement prepared by using the traditional method, the method can dramatically strengthen the cement intensity to keep the workability unchanged and can dramatically increase the quantity of mineral admixtures in concrete in actual use, thereby greatly saving the preparation cost of the concrete and remarkably improving the durability of the concrete.
Description
Technical field
The present invention relates to a kind of material of construction and manufacture method thereof, particularly a kind of high-performance cement based on granularity allocation and preparation method thereof.
Background technology
The performance of cement mainly is the concentrated expression of each grade cement granules performance, and the size distribution of cement is carried out suitable regulation and control, is the important technique measure that improves cement use properties in concrete.Usually, the particle distribution range broad of cement, water requirement is lower, and workability is better, but the intensity performance is relatively poor; The size distribution of cement is narrower, and the intensity performance is abundant, but water requirement is higher, and workability is bad.Therefore, a pair of often contradiction of cement intensity and workability.The best approach that solves this contradiction is exactly, the mode of the original common grinding of all cement materials is changed into various components grinding respectively, to cement performance role difference, carry out suitable granularity allocation according to different components, just might produce all good cement of a kind of intensity and workability.
Summary of the invention
The present invention provides a kind of high-performance cement based on granularity allocation and preparation method thereof for solving the technical problem that exists in the known technology, this granularity allocation cement, and under grinding energy consumption and the water requirement situation identical with traditional cement, strength property improves greatly.
The technical scheme that the present invention takes for the technical problem that exists in the solution known technology is: a kind of high-performance cement based on granularity allocation, it is made by the component of following weight proportion: specific surface area is 350 ± 10m
2/ kg and uniformity coefficient n value are that 1.2-1.3, characteristic diameter are the levigate chamotte powder 70-80% of 10-12 μ m, and specific surface area is 1000 ± 100m
2The limestone powder 5-10% of/kg, specific surface area is 180 ± 10m
2The slag powders 5-10% of/kg, specific surface area is 450 ± 50m
2The slag powders 5-20% of/kg contains the gypsum component that is useful on slow setting in the described levigate chamotte powder.
The grain diameter of described limestone powder 90% is less than 10 μ m.
The preparation method of the present invention's a kind of above-mentioned high-performance cement based on granularity allocation for the technical scheme that solves the technical problem that exists in the known technology and take also has may further comprise the steps:
1), utilize roll squeezer or Vertical Mill final grinding system to be milled to specific surface area 350m with the compound of grog and gypsum
2/ kg ± 10m
2/ kg, uniformity coefficient n value is controlled to be 1.2-1.3, and characteristic diameter is controlled to be 10-12 μ m, obtains levigate chamotte powder; 2) utilize the Vertical Mill final grinding system that has ultra-fine powder separating machine, producing specific surface area is 1000m
2/ kg ± 100m
2The limestone powder of/kg is controlled described Vertical Mill final grinding system and is made the grain diameter of described limestone powder 90% less than 10 μ m; 3) utilizing the closed circuit or Vertical Mill final grinding system of ball mill to produce specific surface area is 180 ± 10m
2The slag powders of/kg and specific surface area are 450 ± 50m
2The slag powders of/kg; 4) slag powders of described levigate chamotte powder, limestone powder and two kinds of specific surface areas is mixed according to weight proportion, in stirrer, stir, obtain product.
The present invention makes up especially to the granularity and the component of cement, makes the cement clinker particle that produces hardening strength mainly be distributed in the interval of 3-30 μ m, and mainly substitutes with the lower blended material of activity less than 3 μ m with greater than the particle of 30 μ m.Because the particle less than 3 μ m is adding instant water with regard to aquation, there is not help to forming the petrifying water mudstone, then can not produce hydration substantially greater than the particle of 30 μ m, these two kinds of particles only work the filling effect of widening size distribution.Through this special design of components, just can give full play to the aquation potential of cement clinker, reach higher service efficiency, and the size distribution of cement is still similar with traditional cement simultaneously, the workability of cement is constant.
The invention has the beneficial effects as follows: start with from the fineness and the size distribution of allotment cement component, make it mainly play the grog component of pectisation, under the specific surface area situation identical with traditional cement, but have narrow as far as possible size distribution and more aquation particle, bring into play hydration activity fully, fine fraction and raw granulate fraction adopt active lower levigate blended material to fill.Through the cement of this granularity allocation, its grinding energy consumption and water requirement and traditional cement are basic identical, but intensity is much higher than traditional cement, improve about 20%.Perhaps when the concrete of preparation same intensity grade, the consumption of plain cement can be saved more than 20%, and the consumption of mineral admixture increases considerably, and has saved cement or concrete production cost widely.Be mixed with under the situation of mineral admixture, the raising of cement clinker extent of hydration, more remarkable to the active excitation of mineral admixture, thus make the structure of maturing more closely knit, endurance performance of concrete significantly improves.In addition, the present invention is different from based on superfine cement through replenishing the granuloplastic accent grain of relevant thickness cement, the superfine pulverizing of cement needs a large amount of grinding power consumption of additive decrementation, obtain higher specific surface area, and the present invention uses the very narrow chamotte powder of size distribution, adopts energy-conservation material bed end milling equipment to produce, and specific surface area is not high, identical with traditional cement, reduce to some extent on the contrary on the energy consumption.In a word, compare with the cement of produced in conventional processes, the present invention can increase substantially cement intensity and keep workability constant, when using, reality can increase considerably the reason of mixing of mineral admixture in the concrete, thereby save concrete preparation cost greatly, and significantly improve durability of concrete.
Embodiment
A kind of high-performance cement based on granularity allocation of the present invention, its weight percent is: levigate chamotte powder 70-80%, specific surface area is 1000 ± 100m
2The limestone powder 5-10% of/kg, specific surface area is 180 ± 10m
2The slag powders 5-10% of/kg, specific surface area is 450 ± 50m
2The slag powders 5-20% of/kg, wherein levigate chamotte powder specific surface area is 350 ± 10m
2/ kg, uniformity coefficient n value is 1.2-1.3, characteristic diameter is 10-12 μ m, is used for the gypsum component of slow setting, is contained in the levigate chamotte powder.Levigate chamotte powder has very narrow size distribution, and uniformity coefficient n value is controlled at 1.2-1.3, adopts roll squeezer or Vertical Mill final grinding system to produce.Limestone powder adopts the Vertical Mill final grinding system have ultra-fine powder separating machine to make, and controls particle that above-mentioned Vertical Mill final grinding system makes limestone powder 90% less than 10 μ m, so that subparticle as much as possible is provided.Slag powders has two kinds of different fineness, and fineness differs 200m
2More than/the kg, utilize whole grinding of Vertical Mill or closed-circuit ball mill system to produce.
Through independent grinding and then mix and make, the specific surface area of each component of cement and size distribution are through special design and combination by different cement materials for above-mentioned high-performance cement based on granularity allocation.The specific surface area of grog component is 340-360m in the cement
2/ kg, but have narrow especially size distribution, the n value reaches 1.2-1.3, accounts for the 70-80% that cement is formed; The fine fraction of cement is by 5-10%, and fineness is 1000m
2Levigate limestone powder about/kg is formed; The raw granulate fraction of cement is 170-190m by content for the 5-10% specific surface area
2The slag powders of/kg is formed, and rest part is that common fineness ratio surface-area is 450m
2Ground slag powder about/kg as the gypsum of cement adjustable solidification agent volume and grog grinding together as required, is contained among the grog component.
The preparation method of above-mentioned high-performance cement based on granularity allocation may further comprise the steps:
1), utilize roll squeezer or Vertical Mill final grinding system to be milled to specific surface area 350m with the compound of grog and gypsum
2/ kg ± 10m
2/ kg, the n value is controlled to be 1.2-1.3, and characteristic diameter is controlled to be 10-12 μ m, obtains chamotte powder;
2) utilize the whole grinding process of the Vertical Mill system that has ultra-fine powder separating machine, producing specific surface area is 1000m
2/ kg ± 100m
2/ kg and 90% particle are less than the limestone powder of 10 μ m;
3) utilize the closed circuit or whole grinding process of the Vertical Mill system of ball mill, producing specific surface area is 180 ± 10m
2The slag powders of/kg and specific surface area are 450 ± 50m
2The slag powders of/kg, the specific surface area of two kinds of slag powders differs 200m
2More than/the kg;
4) above-mentioned material is stirred in stirrer according to above-mentioned weight proportion, obtain product.
Below in conjunction with specific embodiment the present invention is described in further detail:
Embodiment 1:
1) will mix through broken 460kg grog and 40kg gypsum, in half industrialization Vertical Mill final grinding system, by regulating relevant operating parameters, levigate to specific surface area be 350m
2/ kg ± 10m
2/ kg, the n value is 1.2-1.3, takes by weighing the very narrow chamotte powder 240kg of this size distribution;
2) will utilize the Vertical Mill final grinding system that has ultra-fine powder separating machine levigate through broken Wingdale 500kg to 1000m
2/ kg ± 100m
2/ kg, and make its 90% particle less than 10 μ m, take by weighing this ultra-fine limestone powder 15kg;
3) with the 500kg slag, utilize half industrialization Vertical Mill final grinding system, cooperate different powder separating machines, make the slag powders of two kinds of different fineness, a kind of specific surface area of slag powders is 180 ± 10m
2/ kg, the specific surface area of another kind of slag powders is 450 ± 50m
2/ kg.Taking by weighing specific surface area is 180 ± 10m
2The slag powders 15kg of/kg, taking by weighing specific surface area is 450 ± 50m
2/ kg slag powders 30kg;
All pulverulent materials that 4) will take by weighing utilize stirrer to mix, and obtain the 300kg product, and specific surface area is 384m
2/ kg.
Embodiment 2:
The preparation method of cement component fills a prescription to the chamotte powder consumption is 225kg with embodiment 1, ultra-fine limestone powder 30kg, and specific surface area is 180 ± 10m
2The slag powders consumption of/kg is 30kg.Specific surface area is 450 ± 50m
2The slag powders consumption of/kg is 15kg, obtains the product of 300kg, and specific surface area is 403m
2/ kg.
Embodiment 3:
The preparation method of cement component fills a prescription to the chamotte powder consumption is 210kg with embodiment 1, ultra-fine limestone powder 15kg, and specific surface area is 180 ± 10m
2The slag powders consumption of/kg is 15kg.Specific surface area is 450 ± 50m
2The slag powders consumption of/kg is 60kg, obtains the product of 300kg, and specific surface area is 387m
2/ kg.
Table 1,2 is respectively the concrete manifestation that the foregoing description is used in mortar and concrete.
Table-1 is by identical grog granularity allocation cement that forms and the mortar performance that contrasts cement
Annotate: slag powders 1 specific surface area is 450m
2/ kg, slag powders 2 specific surface areas are 180m
2/ kg, the water reducer that uses is naphthalene series high-efficiency water-reducing agent, solid content is 40%.
Table-2 is by identical grog granularity allocation cement that forms and the concrete performance that contrasts cement
Annotate: slag powders 1 specific surface area is 450m
2/ kg, slag powders 2 specific surface areas are 180m
2/ kg, the water reducer that uses is naphthalene series high-efficiency water-reducing agent, solid content is 40%.
By table 1-2 as can be known: the present invention has narrow as far as possible size distribution by the grog component that has made hydration, but provide more aquation particle, under the specific surface area and the essentially identical situation of grinding energy consumption of cement, the cement of cement of the present invention and produced in conventional processes is compared has higher intensity, and because passed through suitable granularity allocation, the workability of cement is not poor yet.Particularly in the concrete of low water-cement ratio, cement clinker particle aquation condition variation, increasing of fine particle grog, for being provided, abundant hydrated product created favourable condition, the intensity difference is bigger, utilizes the concrete of granularity allocation cement preparation can exceed two strength grades of traditional water cement concrete.Be mixed with under the situation of mineral admixture, the raising of cement clinker extent of hydration, more remarkable to the active excitation of mineral admixture, the secondary hydration of mineral admixture, make concrete structure more closely knit, thereby concrete intensity and endurance quality are further improved, and from then on the meaning, granularity allocation cement of the present invention is a kind of high performance cement.
In sum, content of the present invention is not limited in the above-described embodiment, and the technician in the same area can propose other embodiment easily within technical director's thought of the present invention, but this embodiment is included in scope of the present invention.
Claims (3)
1. the high-performance cement based on granularity allocation is characterized in that, it is made by the component of following weight proportion: specific surface area is 350 ± 10m
2/ kg and uniformity coefficient n value are that 1.2-1.3, characteristic diameter are the levigate chamotte powder 70-80% of 10-12 μ m, and specific surface area is 1000 ± 100m
2The limestone powder 5-10% of/kg, specific surface area is 180 ± 10m
2The slag powders 5-10% of/kg, specific surface area is 450 ± 50m
2The slag powders 5-20% of/kg contains the gypsum component that is useful on slow setting in the described levigate chamotte powder.
2. the high-performance cement based on granularity allocation according to claim 1 is characterized in that, the grain diameter of described limestone powder 90% is less than 10 μ m.
3. the preparation method of the described high-performance cement based on granularity allocation of a claim 1 is characterized in that, may further comprise the steps:
1), utilize roll squeezer or Vertical Mill final grinding system to be milled to specific surface area 350m with the compound of grog and gypsum
2/ kg ± 10m
2/ kg, uniformity coefficient n value is controlled to be 1.2-1.3, and characteristic diameter is controlled to be 10-12 μ m, obtains levigate chamotte powder;
2) utilize the Vertical Mill final grinding system that has ultra-fine powder separating machine, producing specific surface area is 1000m
2/ kg ± 100m
2The limestone powder of/kg is controlled described Vertical Mill final grinding system and is made the grain diameter of described limestone powder 90% less than 10 μ m;
3) utilizing the closed circuit or Vertical Mill final grinding system of ball mill to produce specific surface area is 180 ± 10m
2The slag powders of/kg and specific surface area are 450 ± 50m
2The slag powders of/kg;
4) slag powders of described levigate chamotte powder, limestone powder and two kinds of specific surface areas is mixed according to weight proportion, in stirrer, stir, obtain product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010113503A CN101798186A (en) | 2010-02-25 | 2010-02-25 | High performance cement based on granularity allocation and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010113503A CN101798186A (en) | 2010-02-25 | 2010-02-25 | High performance cement based on granularity allocation and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101798186A true CN101798186A (en) | 2010-08-11 |
Family
ID=42594051
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010113503A Pending CN101798186A (en) | 2010-02-25 | 2010-02-25 | High performance cement based on granularity allocation and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107848882A (en) * | 2015-01-13 | 2018-03-27 | 方萍 | composite cement-based material |
| CN107954618A (en) * | 2016-10-14 | 2018-04-24 | 大同煤矿集团朔州煤电宏力再生工业股份有限公司 | A kind of Novel super-thin cement production process |
| CN110922072A (en) * | 2019-11-25 | 2020-03-27 | 四川亚东水泥有限公司 | Cement preparation method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1640842A (en) * | 2004-12-15 | 2005-07-20 | 吉林省通化特种水泥集团股份有限公司 | Special cement and its production process |
-
2010
- 2010-02-25 CN CN201010113503A patent/CN101798186A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1640842A (en) * | 2004-12-15 | 2005-07-20 | 吉林省通化特种水泥集团股份有限公司 | Special cement and its production process |
Non-Patent Citations (1)
| Title |
|---|
| 赵东镐: "熟料粉磨最佳均匀性系数及控制的理论探讨", 《水泥》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107848882A (en) * | 2015-01-13 | 2018-03-27 | 方萍 | composite cement-based material |
| CN107954618A (en) * | 2016-10-14 | 2018-04-24 | 大同煤矿集团朔州煤电宏力再生工业股份有限公司 | A kind of Novel super-thin cement production process |
| CN110922072A (en) * | 2019-11-25 | 2020-03-27 | 四川亚东水泥有限公司 | Cement preparation method |
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Application publication date: 20100811 |