CN108585561A - A kind of portland cement and preparation method thereof - Google Patents
A kind of portland cement and preparation method thereof Download PDFInfo
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- CN108585561A CN108585561A CN201810740300.1A CN201810740300A CN108585561A CN 108585561 A CN108585561 A CN 108585561A CN 201810740300 A CN201810740300 A CN 201810740300A CN 108585561 A CN108585561 A CN 108585561A
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- weight
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- portland cement
- portland
- silicate
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Classifications
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- 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
- C04B7/24—Cements from oil shales, residues or waste other than slag
-
- 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
-
- 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
- C04B7/36—Manufacture of hydraulic cements in general
-
- 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
Abstract
The invention belongs to building material technical fields, more particularly to a kind of portland cement and preparation method thereof, portland cement of the present invention is by Portland clinker, quartz sand, Iron-ore Slag, gypsum, diatomite and mica powder composition, first by sand, lime stone, kaolin, steel-making slag powder mixes after being crushed respectively, and carry out grinding, then calcined for production of Portland clinker, then by Portland clinker and quartz sand, Iron-ore Slag, gypsum, diatomite, ball milling is carried out after mica powder mixing, portland cement is prepared, portland cement setting rate prepared by this law is very fast, corrosion resistance is strong, and due to the addition of diatomite and mica powder, its compression strength is set further to be promoted.
Description
Technical field
The invention belongs to building material technical fields, and in particular to a kind of portland cement and preparation method thereof.
Background technology
Cement is a kind of powdery hydraulicity inorganic coagulation material, add water stir after at slurry, can harden in air or
Preferably hardening in water, and can the materials such as sand, stone are cemented together securely, the concrete made of its cementing rubble,
Not only intensity is higher after hardening, and can also resist the erosion of fresh water or brackish water.For a long time, it is as a kind of important glue
Gel material is widely used in the engineerings such as civil construction, water conservancy, national defence.Cement is divided by purposes and performance：It is general-purpose cement, special
Cement and characteristic cement three categories.All Portland clinkers based on calcium silicates, 5% lime stone or granulated blast-furnace below
Slag, hydraulic cementing materials made of proper amount of gypsum is levigate, is referred to as portland cement.Portland cement divides two types,
Be not spiked with mixing material is known as I type portland cement, code name P I；Add the lime stone or grain no more than cement quality 5%
That changes blast-furnace cinder mixing material is known as II type portland cement, code name P II.The essential mineral of portland cement forms：
Tricalcium silicate, dicalcium silicate, tricalcium aluminate, tetra calcium aluminoferrite.Tricalcium silicate decides strong in four week of portland cement
Degree；Ability Developed fiber strength acts on after four week of dicalcium silicate；Tricalcium aluminate intensity plays comparatively fast, but intensity is low；Tetra calcium aluminoferrite
Intensity plays also very fast.
Portland cement series general at present, with raw material appropriate, the rate value and ingredient of appropriate design are passed through
The technique of the burnings of " Liang Mo mono- " is prepared, and is the hydraulicity gel rubber material for producing and being most widely used.For a long time, silicate
Any variation does not occur substantially for the ingredient of cement and mineral composition, and technology development is mainly production technology and equipment.With public affairs
The increase for the development and highway mileage that road is built, the traffic volume and load of highway are also growing day by day, to cement concrete pavement
Higher requirements are also raised for quality and service life.When portland cement is used for cement concrete road, since aquation is generated heat
The high, factors such as flexural strength is not high, wear-resisting and shrinkage performance is poor, easily lead to road concrete rupture, influence road uses the longevity
Life.Portland cement, Portland clinker, the mixing material of 5%-20% and proper amount of gypsum it is levigate made of hydraulic
Property cementitious material.Big with intensity height, the heat of hydration, frost resistance is good, drying shrinkage is small, and wearability is preferable, carbonization resistance is preferable, corrosion-resistant
Poor, non-refractory the characteristic of property.
In existing technology of preparing, the solidification duration of cement cannot control well, and intensity is relatively low, in process of setting
The problem of encountering bad weather in if, will result in waste material.
Invention content
The object of the present invention is to provide a kind of portland cements and preparation method thereof, first by sand, lime stone, kaolin,
Slag powders mix after being crushed respectively, and carry out grinding, and then calcined for production of Portland clinker, then ripe by portland cement
Ball milling is carried out after material and quartz sand, Iron-ore Slag, gypsum, diatomite and mica powder mixing, portland cement, this legal system is prepared
Standby portland cement setting rate is very fast, and corrosion resistance is strong, and since diatomite and mica powder is added, make its compression strength into
One step is promoted.
The technical scheme is that：
A kind of portland cement, by Portland clinker, quartz sand, Iron-ore Slag, gypsum, diatomite and mica powder group
At.
Preferably, the ratio of each component is in above-mentioned portland cement：Portland clinker 75-80 parts by weight, quartz
Sand 15-20 parts by weight, Iron-ore Slag 1-3 parts by weight, gypsum 1-3 parts by weight, diatomite 2-4 parts by weight, mica powder 2-4 parts by weight.
Preferably, above-mentioned Portland clinker by sand, lime stone, kaolin and slag powders through firing prepare and
At.
The preparation method of above-mentioned portland cement, includes the following steps：
(1) by 65-70 parts by weight sand, 15-20 parts by weight lime stone, 5-10 parts by weight kaolin clay and 5-10 parts by weight mines
Ground-slag is crushed respectively, obtains pre-composition；
(2) above-mentioned pre-composition is subjected to grinding with grinding device, obtains silicate cement raw material；
(3) silicate cement raw material is preheated, part thereof is made to decompose；
(4) the silicate cement raw material high-temperature calcination after preheating is prepared into Portland clinker；
(5) by 75-80 parts by weight silicate clinker, 15-20 parts by weight quartz sand, 1-3 parts by weight Iron-ore Slag, 1-3
Parts by weight gypsum, 2-4 parts by weight diatomite and 2-4 parts by weight mica powder mixing and ball millings, obtain portland cement.
Preferably, the grain size of pre-composition is 30-50um after being crushed in step (1)；
Preferably, calcination temperature is 1300-1500 DEG C in step (4)；
Beneficial effects of the present invention are as follows：
Portland cement of the present invention is by Portland clinker, quartz sand, Iron-ore Slag, gypsum, diatomite and mica powder group
At being mixed after being first crushed sand, lime stone, kaolin, slag powders respectively, and carry out grinding, then calcined for production of Portland
Clinker carries out ball after then mixing Portland clinker and quartz sand, Iron-ore Slag, gypsum, diatomite and mica powder
Portland cement is prepared in mill, and portland cement setting rate prepared by this law is very fast, and corrosion resistance is strong, and due to being added
Diatomite and mica powder make its compression strength further be promoted.
Specific implementation mode
With reference to embodiment, technical scheme of the present invention is described in further detail, but do not constituted pair
Any restrictions of the present invention.
Embodiment 1
A kind of portland cement, by 77 parts by weight silicate clinkers, 16 parts by weight quartz sands, 1 parts by weight Iron-ore Slag,
1 parts by weight gypsum, 2 parts by weight diatomite and 3 parts by weight mica powder composition, wherein Portland clinker is by 68 parts by weight sand
Soil, 18 parts by weight lime stones, 8 parts by weight kaolin clay and 6 parts by weight slag powders are through calcining.
The preparation method of above-mentioned portland cement includes the following steps：
(1) 68 parts by weight sands, 18 parts by weight lime stones, 8 parts by weight kaolin clay and 6 parts by weight slag powders are carried out respectively
It is broken, obtain the pre-composition that grain size is 30um；
(2) above-mentioned pre-composition is subjected to grinding with grinding device, obtains silicate cement raw material；
(3) silicate cement raw material is preheated, part thereof is made to decompose；
(4) by the silicate cement raw material after preheating under 1400 DEG C of high temperature calcined for production of Portland clinker；
(5) by 77 parts by weight silicate clinkers, 16 parts by weight quartz sands, 1 parts by weight Iron-ore Slag, 1 parts by weight gypsum,
2 parts by weight diatomite and 3 parts by weight mica powder mixing and ball millings, obtain portland cement.
The portland cement presetting period that the present embodiment is prepared is 95min, final setting time 164min, is condensed 3 days
Compression strength be 37.8MPa, 28 days anti-erosion coefficients are 0.95.
Embodiment 2
A kind of portland cement, by 75 parts by weight silicate clinkers, 16 parts by weight quartz sands, 1.5 parts by weight iron ores
Slag, 1.5 parts by weight gypsum, 3 parts by weight diatomite and 3 parts by weight mica powder composition, wherein Portland clinker is by 70 weight
Part sand, 16 parts by weight lime stones, 8.5 parts by weight kaolin clay and 5.5 parts by weight slag powders are through calcining.
The preparation method of above-mentioned portland cement includes the following steps：
(1) 70 parts by weight sands, 16 parts by weight lime stones, 8.5 parts by weight kaolin clay and 5.5 parts by weight slag powders are distinguished
It is crushed, obtains the pre-composition that grain size is 50um；
(2) above-mentioned pre-composition is subjected to grinding with grinding device, obtains silicate cement raw material；
(3) silicate cement raw material is preheated, part thereof is made to decompose；
(4) by the silicate cement raw material after preheating under 1500 DEG C of high temperature calcined for production of Portland clinker；
(5) by 75 parts by weight silicate clinkers, 16 parts by weight quartz sands, 1.5 parts by weight Iron-ore Slags, 1.5 parts by weight
Gypsum, 3 parts by weight diatomite and 3 parts by weight mica powder mixing and ball millings, obtain portland cement.
The novel silicate jelling time that the present embodiment is prepared is 92min, final setting time 156min, condensation
3 days compression strength is 39.1MPa, and 28 days anti-erosion coefficients are 0.98.
Embodiment 3
A kind of portland cement, by 77 parts by weight silicate clinkers, 15 parts by weight quartz sands, 1 parts by weight Iron-ore Slag,
1 parts by weight gypsum, 4 parts by weight diatomite and 2 parts by weight mica powder composition, wherein Portland clinker is by 65 parts by weight sand
Soil, 18 parts by weight lime stones, 8 parts by weight kaolin clay and 9 parts by weight slag powders are through calcining.
The preparation method of above-mentioned portland cement includes the following steps：
(1) 65 parts by weight sands, 18 parts by weight lime stones, 8 parts by weight kaolin clay and 9 parts by weight slag powders are carried out respectively
It is broken, obtain the pre-composition that grain size is 40um；
(2) above-mentioned pre-composition is subjected to grinding with grinding device, obtains silicate cement raw material；
(3) silicate cement raw material is preheated, part thereof is made to decompose；
(4) by the silicate cement raw material after preheating under 1300 DEG C of high temperature calcined for production of Portland clinker；
(5) by 77 parts by weight silicate clinkers, 15 parts by weight quartz sands, 1 parts by weight Iron-ore Slag, 1 parts by weight gypsum,
4 parts by weight diatomite and 2 parts by weight mica powder mixing and ball millings, obtain portland cement.
The portland cement presetting period that the present embodiment is prepared is 93min, final setting time 162min, is condensed 3 days
Compression strength be 40.8MPa, 28 days anti-erosion coefficients are 0.96.
Comparative example 1
A kind of portland cement, by 79 parts by weight silicate clinkers, 15 parts by weight quartz sands, 1 parts by weight Iron-ore Slag,
1 parts by weight gypsum and 4 parts by weight diatomite composition, wherein Portland clinker is by 65 parts by weight sands, 18 parts by weight lime
Stone, 8 parts by weight kaolin clay and 9 parts by weight slag powders are through calcining.
The preparation method of above-mentioned portland cement includes the following steps：
(1) 65 parts by weight sands, 18 parts by weight lime stones, 8 parts by weight kaolin clay and 9 parts by weight slag powders are carried out respectively
It is broken, obtain the pre-composition that grain size is 40um；
(2) above-mentioned pre-composition is subjected to grinding with grinding device, obtains silicate cement raw material；
(3) silicate cement raw material is preheated, part thereof is made to decompose；
(4) by the silicate cement raw material after preheating under 1300 DEG C of high temperature calcined for production of Portland clinker；
(5) by 79 parts by weight silicate clinkers, 15 parts by weight quartz sands, 1 parts by weight Iron-ore Slag, 1 parts by weight gypsum
With 4 parts by weight diatomite mixing and ball millings, portland cement is obtained.
The portland cement presetting period that this comparative example is prepared is 112min, final setting time 248min, is condensed 3 days
Compression strength be 24.3MPa, 28 days anti-erosion coefficients are 0.89.
Comparative example 2
A kind of portland cement, by 79 parts by weight silicate clinkers, 15 parts by weight quartz sands, 1 parts by weight Iron-ore Slag,
1 parts by weight gypsum and 4 parts by weight mica powder composition, wherein Portland clinker is by 65 parts by weight sands, 18 parts by weight lime
Stone, 8 parts by weight kaolin clay and 9 parts by weight slag powders are through calcining.
The preparation method of above-mentioned portland cement includes the following steps：
(1) 65 parts by weight sands, 18 parts by weight lime stones, 8 parts by weight kaolin clay and 9 parts by weight slag powders are carried out respectively
It is broken, obtain the pre-composition that grain size is 40um；
(2) above-mentioned pre-composition is subjected to grinding with grinding device, obtains silicate cement raw material；
(3) silicate cement raw material is preheated, part thereof is made to decompose；
(4) by the silicate cement raw material after preheating under 1300 DEG C of high temperature calcined for production of Portland clinker；
(5) by 79 parts by weight silicate clinkers, 15 parts by weight quartz sands, 1 parts by weight Iron-ore Slag, 1 parts by weight gypsum
With 4 parts by weight mica powder mixing and ball millings, portland cement is obtained.
The portland cement presetting period that this comparative example is prepared is 122min, final setting time 253min, is condensed 3 days
Compression strength be 24.5MPa, 28 days anti-erosion coefficients are 0.91.
Comparative example 3
A kind of portland cement, by 83 parts by weight silicate clinkers, 15 parts by weight quartz sands, 1 parts by weight Iron-ore Slag
It is formed with 1 parts by weight gypsum, wherein Portland clinker is high by 65 parts by weight sands, 18 parts by weight lime stones, 8 parts by weight
Ridge soil and 9 parts by weight slag powders are through calcining.
The preparation method of above-mentioned portland cement includes the following steps：
(1) 65 parts by weight sands, 18 parts by weight lime stones, 8 parts by weight kaolin clay and 9 parts by weight slag powders are carried out respectively
It is broken, obtain the pre-composition that grain size is 40um；
(2) above-mentioned pre-composition is subjected to grinding with grinding device, obtains silicate cement raw material；
(3) silicate cement raw material is preheated, part thereof is made to decompose；
(4) by the silicate cement raw material after preheating under 1300 DEG C of high temperature calcined for production of Portland clinker；
(5) by 83 parts by weight silicate clinkers, 15 parts by weight quartz sands, 1 parts by weight Iron-ore Slag and 1 parts by weight gypsum
Mixing and ball milling obtains portland cement.
The portland cement presetting period that this comparative example is prepared is 142min, final setting time 289min, is condensed 3 days
Compression strength be 20.1MPa, 28 days anti-erosion coefficients are 0.90.
It can be seen from the result of above example and comparative example the portland cement setting rate for preparing of the present invention compared with
Soon, corrosion resistance is strong, and since diatomite and mica powder is added, its compression strength is made further to be promoted.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, it is other it is any without departing from the spirit and principles of the present invention made by changes, modifications, substitutions, combinations, simplifications,
Equivalent substitute mode is should be, is included within the scope of the present invention.
Claims (6)
1. a kind of portland cement, which is characterized in that by Portland clinker, quartz sand, Iron-ore Slag, gypsum, diatomite and
Mica powder forms.
2. a kind of portland cement according to claim 1, which is characterized in that the ratio of each component in the portland cement
Example be：Portland clinker 75-80 parts by weight, quartz sand 15-20 parts by weight, Iron-ore Slag 1-3 parts by weight, gypsum 1-3 weight
Part, diatomite 2-4 parts by weight, mica powder 2-4 parts by weight.
3. a kind of portland cement according to claim 1, which is characterized in that the Portland clinker by sand,
Lime stone, kaolin and slag powders are prepared by firing.
4. the preparation method of any portland cement described in claim 1-3, which is characterized in that include the following steps：
(1) by 65-70 parts by weight sand, 15-20 parts by weight lime stone, 5-10 parts by weight kaolin clay and 5-10 parts by weight slag powders
It is crushed respectively, obtains pre-composition；
(2) above-mentioned pre-composition is subjected to grinding with grinding device, obtains silicate cement raw material；
(3) silicate cement raw material is preheated, part thereof is made to decompose；
(4) the silicate cement raw material high-temperature calcination after preheating is prepared into Portland clinker；
(5) by 75-80 parts by weight silicate clinker, 15-20 parts by weight quartz sand, 1-3 parts by weight Iron-ore Slag, 1-3 weight
Part gypsum, 2-4 parts by weight diatomite and 2-4 parts by weight mica powder mixing and ball millings, obtain portland cement.
5. a kind of preparation method of portland cement according to claim 4, which is characterized in that after being crushed in step (1)
The grain size of pre-composition is 30-50um.
6. a kind of preparation method of portland cement according to claim 4, which is characterized in that calcining temperature in step (4)
Degree is 1300-1500 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810740300.1A CN108585561A (en) | 2018-07-07 | 2018-07-07 | A kind of portland cement and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810740300.1A CN108585561A (en) | 2018-07-07 | 2018-07-07 | A kind of portland cement and preparation method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103864321A (en) * | 2014-03-19 | 2014-06-18 | 广西鱼峰集团有限公司 | Portland cement for roads and production method thereof |
| CN104496228A (en) * | 2014-12-30 | 2015-04-08 | 中国建筑材料科学研究总院 | Road silicate cement clinker and preparation method thereof |
| CN105330180A (en) * | 2015-11-19 | 2016-02-17 | 中国建筑材料科学研究总院 | Early-strength low-heat Portland cement and preparation method thereof |
| CN107721209A (en) * | 2017-11-06 | 2018-02-23 | 甘肃恒亚水泥有限公司 | A kind of portland cement and preparation method |
-
2018
- 2018-07-07 CN CN201810740300.1A patent/CN108585561A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103864321A (en) * | 2014-03-19 | 2014-06-18 | 广西鱼峰集团有限公司 | Portland cement for roads and production method thereof |
| CN104496228A (en) * | 2014-12-30 | 2015-04-08 | 中国建筑材料科学研究总院 | Road silicate cement clinker and preparation method thereof |
| CN105330180A (en) * | 2015-11-19 | 2016-02-17 | 中国建筑材料科学研究总院 | Early-strength low-heat Portland cement and preparation method thereof |
| CN107721209A (en) * | 2017-11-06 | 2018-02-23 | 甘肃恒亚水泥有限公司 | A kind of portland cement and preparation method |
Non-Patent Citations (1)
| Title |
|---|
| 杨彦克等主编: "《建筑材料（第3版）》", 30 June 2013, 西南交通大学出版社 * |
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