CN108033694A - Novel silicate cement and preparation method thereof - Google Patents
Novel silicate cement and preparation method thereof Download PDFInfo
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- CN108033694A CN108033694A CN201711435306.XA CN201711435306A CN108033694A CN 108033694 A CN108033694 A CN 108033694A CN 201711435306 A CN201711435306 A CN 201711435306A CN 108033694 A CN108033694 A CN 108033694A
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- cement
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- silicate cement
- novel silicate
- extra material
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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
- C04B7/14—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
- C04B7/14—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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention relates to a kind of novel silicate cement, count in parts by weight, its raw material includes：A kind of novel silicate cement, is counted in parts by weight, its raw material includes：60 70 parts of clinker, 15 19 parts of ultrafine slag, 57 parts of lime stone, 57 parts of gypsum, 69 parts of extra material；The extra material is made of silicon ash, metering system acid calcium salt hydrate, 1 (3 trifluoromethyl) piperazine hydrochloride, 4 (4 fluoro benzoyl) piperidine hydrochlorates.This kind of novel silicate cement is in aquation early period; the fluorine ion and calcium ion ionized out using 1 (3 trifluoromethyl) piperazine hydrochloride, 4 (4 fluoro benzoyl) piperidine hydrochlorates forms calcirm-fluoride; so as to largely consume calcium ion, make C3S surfaces are difficult to form double electrical layers, so that C3The induction period of S, which shortens, even to disappear, so that heat evolution velocity is accelerated rapidly, aquation heat liberation rate, heat release rate early period improves.Therefore, cement floats in the scope of the heat liberation rate, heat release rate in hardening maintenance stage between 5 10%, and crack is smaller in the cement after hardening, and the intensity of cement specimen improves.
Description
Technical field
The present invention relates to building material field, more specifically, it is related to a kind of novel silicate cement and its preparation side
Method.
Background technology
Cement is a kind of powdery hydraulicity inorganic coagulation material, its add water stir after into slurry, can be in air or water
Hardening, and can the materials such as sand, stone is cemented together securely.Therefore, at present usually using the system such as cementing rubble, sand
Into concrete, not only intensity is higher for the concrete after hardening, and can also resist the erosion of fresh water or brackish water.Thus cement
As a kind of important cementitious material, it is widely used in the engineerings such as civil construction, water conservancy, national defence.
Cement is during hardening, first, cement granules and water haptoreaction, heat liberation rate, heat release rate quickly, but due to gypsum
Presence, the surface of cement granules can form one layer of passivating film, so as to cause heat liberation rate, heat release rate to reduce.Filling with cement and water afterwards
Tap is touched, cement and water fast reaction generation hydrated product, and produces amount of heat.Therefore, cement is hardening the maintenance stage,
The heat liberation rate, heat release rate of cement system changes greatly, and causes the shrinking percentage difference of cement, and cement is produced during hardening compared with multiple cracking,
The cement specimen intensity decreases caused, there are security risk.
The content of the invention
It is an object of the invention to provide a kind of novel silicate cement, during hardening of cement, cement heat release early period
Rate increases, and crack is smaller in the cement after hardening, and the intensity of cement specimen improves.
The present invention above-mentioned purpose technical scheme is that：A kind of novel silicate cement, by weight
Number meter is measured, its raw material includes：60-70 parts of clinker, 15-19 parts of ultrafine slag, 5-7 parts of lime stone, 5-7 parts of gypsum, extra material
6-9 parts；
The extra material is by silicon ash, metering system acid calcium salt hydrate, 1- (3- trifluoromethyls) piperazine hydrochloride, 4- (4-
Fluoro benzoyl) piperidine hydrochlorate is made.
Preferably, the silicon ash, metering system acid calcium salt hydrate, 1- (3- trifluoromethyls) piperazine hydrochloride, 4-
The mass ratio of (4- fluoro benzoyls) piperidine hydrochlorate is 8:4:2:1.
Preferably, the average grain diameter of the silicon ash is 0.1-0.3 μm, specific surface area 20-28m/g.
Preferably, solvent is added in the extra material preparation process.
Preferably, the solvent is ethyl acetate, ethanol, methanol, the one or more of dichloromethane.
Another object of the present invention is to provide the preparation method of novel silicate cement described above.
The present invention above-mentioned purpose technical scheme is that：A kind of preparation of novel silicate cement
Method, comprises the following steps：
The preparation of extra material：1- (3- trifluoromethyls) piperazine hydrochloride, 4- (4- fluoro benzoyls) piperidine hydrochlorate is taken to put
Enter in solvent, for rise solvent temperature to 28-34 DEG C, uniform stirring, after until being completely dissolved, raises temperature by solvent for the second time
Volatilization, mixture is obtained after dry；Backward mixture in add silicon ash, metering system acid calcium salt hydrate, uniformly mixing after,
Obtain extra material；
It is prepared by novel silicate cement：Clinker, ultrafine slag, lime stone, gypsum, extra material are taken, uniformly after mixing, in cement grinding mill
Interior uniformly milling can obtain finished cement.
Preferably, in the step of extra material is prepared, it is 60-66 DEG C that second, which raises temperature,.
Preferably, the average grain diameter of the novel silicate cement is 13-17 μm.
In conclusion the invention has the advantages that：
1st, the novel silicate cement that is prepared of the present invention utilizes 1- (3- trifluoromethyls) piperazine hydrochloric acid in aquation early period
The fluorine ion and calcium ion that salt, 4- (4- fluoro benzoyls) piperidine hydrochlorate ionize out form and are more prone to crystallize than calcium hydroxide
Calcirm-fluoride, so as to largely consume calcium ion, make C3S surfaces are difficult to form double electrical layers, so that C3The induction period of S shortens
Even disappear, so that heat evolution velocity is accelerated rapidly, aquation heat liberation rate, heat release rate early period improves.Therefore, cement is in the hardening maintenance stage
The scope of heat liberation rate, heat release rate is floated between 5-10%, and crack is smaller in the cement after hardening, and the intensity of cement specimen improves.
2nd, after the slag that the present invention is filled, the heat of hydration, intensity increase of the cement at the 28th day are reduced, while prevent cement
Cause crack because temperature rise is different inside test specimen.In addition filling the cement of slag can make maturing have good sulfuric-resisting
Salt contamination corrosion, reduces and suppresses chlorine ion binding capacity performance, and resistant to sea water aggressivity, anti-carbonation, alkali resistant.
Embodiment
Involved all substances are commercially available in the embodiment of the present invention.
First, embodiment is made
The specification of used sample is as shown in table 1 in each embodiment.
Embodiment 1
The preparation of extra material：Take 1- (3- trifluoromethyls) piperazine hydrochloride 1kg, 4- (4- fluoro benzoyls) piperidine hydrochlorate
0.5kg is put into ethyl acetate, and rise ethyl acetate temperature is to 31 DEG C, uniform stirring, after until being completely dissolved, second liter
High-temperature volatilizees solvent to 63 DEG C, and mixture is obtained after dry；Backward mixture in add silicon ash 4kg, methacrylic acid
Calcium salt hydrate 2kg, uniformly after mixing, obtains extra material, wherein, the average grain diameter of silicon ash is 0.2 μm, specific surface area 24m/
g；It is prepared by novel silicate cement：Clinker 65kg, ultrafine slag 17kg, lime stone 6kg, gypsum 6kg, extra material 7.5kg are taken,
After even mixing, uniformly milling can obtain the finished cement that average grain diameter is 15 μm in cement grinding mill.
Embodiment 2
The preparation of extra material：Take 1- (3- trifluoromethyls) piperazine hydrochloride 0.8kg, 4- (4- fluoro benzoyls) piperidines hydrochloric acid
Salt 0.4kg is put into ethanol, and for rise ethanol temperature to 28 DEG C, uniform stirring, after until being completely dissolved, raises temperature for the second time
Solvent is volatilized to 66 DEG C, mixture is obtained after dry；Backward mixture in add silicon ash 4.8kg, metering system acid calcium salt
Hydrate 1.6kg, uniformly after mixing, obtains extra material, wherein, the average grain diameter of silicon ash is 0.2 μm, specific surface area 28m/g；
It is prepared by novel silicate cement：Clinker 60kg, ultrafine slag 15kg, lime stone 5kg, gypsum 5kg, extra material 6kg are taken, it is uniformly mixed
After conjunction, uniformly milling can obtain the finished cement that average grain diameter is 17 μm in cement grinding mill.
Embodiment 3
The preparation of extra material：Take 1- (3- trifluoromethyls) piperazine hydrochloride 1.2kg, 4- (4- fluoro benzoyls) piperidines hydrochloric acid
Salt 0.4kg is put into methanol, and for rise methanol temperature to 28 DEG C, uniform stirring, after until being completely dissolved, raises temperature for the second time
Solvent is volatilized to 66 DEG C, mixture is obtained after dry；Backward mixture in add silicon ash 3.2kg, metering system acid calcium salt
Hydrate 2.4kg, uniformly after mixing, obtains extra material, wherein, the average grain diameter of silicon ash is 0.3 μm, specific surface area 28m/g；
It is prepared by novel silicate cement：Clinker 60kg, ultrafine slag 19kg, lime stone 5kg, gypsum 5kg, extra material 6kg are taken, it is uniformly mixed
After conjunction, uniformly milling can obtain the finished cement that average grain diameter is 17 μm in cement grinding mill.
Embodiment 4
The preparation of extra material：Take 1- (3- trifluoromethyls) piperazine hydrochloride 0.8kg, 4- (4- fluoro benzoyls) piperidines hydrochloric acid
Salt 0.4kg is put into dichloromethane, and rise dichloromethane temperature is to 34 DEG C, uniform stirring, after until being completely dissolved, second
Rise temperature volatilizees solvent to 60 DEG C, and mixture is obtained after dry；Backward mixture in add silicon ash 4.8kg, methyl-prop
Enoic acid calcium salt hydrate 2kg, uniformly after mixing, obtains extra material, wherein, the average grain diameter of silicon ash is 0.1 μm, and specific surface area is
24m/g；It is prepared by novel silicate cement：Clinker 70kg, ultrafine slag 15kg, lime stone 5kg, gypsum 5kg, extra material 9kg are taken,
Uniformly after mixing, uniformly milling can obtain the finished cement that average grain diameter is 13 μm in cement grinding mill.
Embodiment 5
The preparation of extra material：Take 1- (3- trifluoromethyls) piperazine hydrochloride 1.2kg, 4- (4- fluoro benzoyls) piperidines hydrochloric acid
Salt 0.6kg is put into ethanol, and for rise ethanol temperature to 34 DEG C, uniform stirring, after until being completely dissolved, raises temperature for the second time
Solvent is volatilized to 60 DEG C, mixture is obtained after dry；Backward mixture in add silicon ash 3.2kg, metering system acid calcium salt
Hydrate 1.6kg, uniformly after mixing, obtains extra material, wherein, the average grain diameter of silicon ash is 0.2 μm, specific surface area 24m/g；
It is prepared by novel silicate cement：Clinker 70kg, ultrafine slag 19kg, lime stone 7kg, gypsum 7kg, extra material 9kg are taken, it is uniformly mixed
After conjunction, uniformly milling can obtain the finished cement that average grain diameter is 13 μm in cement grinding mill.
Embodiment 6
The preparation of extra material：Take 1- (3- trifluoromethyls) piperazine hydrochloride 0.8kg, 4- (4- fluoro benzoyls) piperidines hydrochloric acid
Salt 0.6kg is put into ethyl acetate, and rise ethyl acetate temperature is to 28 DEG C, uniform stirring, after until being completely dissolved, second
Rise temperature volatilizees solvent to 60 DEG C, and mixture is obtained after dry；Backward mixture in add silicon ash 4.8kg, methyl-prop
Enoic acid calcium salt hydrate 2.4kg, uniformly after mixing, obtains extra material, wherein, the average grain diameter of silicon ash is 0.3 μm, specific surface area
For 20m/g；
It is prepared by novel silicate cement：Clinker 70kg, ultrafine slag 15kg, lime stone 7kg, gypsum 7kg, extra material 6kg are taken,
After even mixing, uniformly milling can obtain the finished cement that average grain diameter is 13 μm in cement grinding mill.
2nd, comparative example is made
Comparative example 1
It is prepared by novel silicate cement：Clinker 65kg, ultrafine slag 17kg, lime stone 6kg, gypsum 6kg are taken, uniformly after mixing,
Uniformly milling can obtain the finished cement that average grain diameter is 15 μm in cement grinding mill.
Comparative example 2
The preparation of extra material：Take 1- (3- trifluoromethyls) piperazine hydrochloride 1kg to be put into ethyl acetate, raise ethyl acetate
Temperature is to 31 DEG C, and uniform stirring, after until being completely dissolved, second of rise temperature volatilizees solvent to 63 DEG C, is obtained after dry
To mixture；Backward mixture in add silicon ash 4kg, metering system acid calcium salt hydrate 2kg, uniformly after mixing, obtain outer
Spike, wherein, the average grain diameter of silicon ash is 0.2 μm, specific surface area 24m/g；
It is prepared by novel silicate cement：Clinker 65kg, ultrafine slag 17kg, lime stone 6kg, gypsum 6kg, extra material 7.5kg are taken,
Uniformly after mixing, uniformly milling can obtain the finished cement that average grain diameter is 15 μm in cement grinding mill.
Comparative example 3
The preparation of extra material：Take 4- (4- fluoro benzoyls) piperidine hydrochlorate 0.5kg to be put into ethyl acetate, raise ethyl acetate
Temperature is to 31 DEG C, and uniform stirring, after until being completely dissolved, second of rise temperature volatilizees solvent to 63 DEG C, is obtained after dry
To mixture；Backward mixture in add silicon ash 4kg, metering system acid calcium salt hydrate 2kg, uniformly after mixing, obtain outer
Spike, wherein, the average grain diameter of silicon ash is 0.2 μm, specific surface area 24m/g；
It is prepared by novel silicate cement：Clinker 65kg, ultrafine slag 17kg, lime stone 6kg, gypsum 6kg, extra material 7.5kg are taken,
Uniformly after mixing, uniformly milling can obtain the finished cement that average grain diameter is 15 μm in cement grinding mill.
3rd, performance test
Evaluation index and detection method are as follows used by novel silicate cement prepared by various embodiments above：
Compression strength：Novel silicate cement and water are pressed 1:5 ratio is mixed and stirred, and is put into the mould that reference block is made, point
The compression strength with 95% fraction not measured at the 7th day, the 14th day, the 28th day.
Apparent property：Microcosmic detection is carried out to the test block of novel silicate cement standard using scanning electron microscope.
Temperature：During hardening of cement, position at two was taken at random in first 7 days, tests the maximum temperature difference of concrete.
The performance indicator of various embodiments above and comparative example is as shown in table 1.
The performance test results of novel silicate cement prepared by 1 each embodiment of table and comparative example
As can be seen that novel silicate cement free from flaw production in maintenance processes are hardened that the present invention is prepared from above-mentioned table
It is raw, and pass through compression strength performance test, the early strength and later strength of novel silicate cement meet new silicic acid
The job specfication requirement of salt cement.
Wherein, novel silicate cement, cement only is made using clinker, ultrafine slag, lime stone, gypsum in comparative example 1
During hardening, first, cement granules and water haptoreaction, heat liberation rate, heat release rate quickly, but due to the presence of gypsum, cement
The surface of grain can form one layer of passivating film, so as to cause heat liberation rate, heat release rate to reduce.Afterwards as cement and water come into full contact with, cement and water
Fast reaction generates hydrated product, and produces amount of heat.Therefore, cement is in hardening maintenance stage, the heat release of cement system
Rate changes greatly, and causes the shrinking percentage difference of cement, and cement produces the cement compared with multiple cracking, caused during hardening
Test piece intensity reduces.
4- (4- fluoro benzoyls) piperidine hydrochlorate is added without in comparative example 2, thus cause ionization out fluorine ion compared with
It is few, so that C3The induction period of S does not shorten, and heat evolution velocity is relatively slow compared to embodiment 1, therefore causes the intensity of cement specimen
Reduce.
1- (3- trifluoromethyls) piperazine hydrochloride is added without in comparative example 3, therefore causes the fluorine ion of ionization out
It is less, so that C3The induction period of S does not shorten, and heat evolution velocity is relatively slow compared to embodiment 1, therefore causes the strong of cement specimen
Degree reduces.
This specific embodiment is only explanation of the invention, it is not limitation of the present invention, people in the art
Member as needed can make the present embodiment the modification of no creative contribution after this specification is read, but as long as at this
All protected in the right of invention be subject to Patent Law.
Claims (8)
1. a kind of novel silicate cement, it is characterized in that, count in parts by weight, its raw material includes：60-70 parts of clinker, ultra-fine ore deposit
15-19 parts of slag, 5-7 parts of lime stone, 5-7 parts of gypsum, 6-9 parts of extra material；
The extra material is by silicon ash, metering system acid calcium salt hydrate, 1- (3- trifluoromethyls) piperazine hydrochloride, 4- (4-
Fluoro benzoyl) piperidine hydrochlorate is made.
2. novel silicate cement according to claim 1, it is characterized in that, the silicon ash, the hydration of metering system acid calcium salt
Thing, 1- (3- trifluoromethyls) piperazine hydrochloride, the mass ratio of 4- (4- fluoro benzoyls) piperidine hydrochlorate are 8:4:2:1.
3. novel silicate cement according to claim 1, it is characterized in that, the average grain diameter of the silicon ash is 0.1-0.3 μ
M, specific surface area 20-28m/g.
4. novel silicate cement according to claim 1, it is characterized in that, added in the extra material preparation process molten
Agent.
5. novel silicate cement according to claim 4, it is characterized in that, the solvent is ethyl acetate, ethanol, first
The one or more of alcohol, dichloromethane.
6. a kind of method for preparing novel silicate cement as claimed in claim 1, it is characterized in that, comprise the following steps：
The preparation of extra material：1- (3- trifluoromethyls) piperazine hydrochloride, 4- (4- fluoro benzoyls) piperidine hydrochlorate is taken to put
Enter in solvent, for rise solvent temperature to 28-34 DEG C, uniform stirring, after until being completely dissolved, raises temperature by solvent for the second time
Volatilization, mixture is obtained after dry；Backward mixture in add silicon ash, metering system acid calcium salt hydrate, uniformly mixing after,
Obtain extra material；
It is prepared by novel silicate cement：Clinker, ultrafine slag, lime stone, gypsum, extra material are taken, uniformly after mixing, in cement grinding mill
Interior uniformly milling can obtain finished cement.
7. the preparation method of novel silicate cement according to claim 6, it is characterized in that, the step that the extra material is prepared
In rapid, it is 60-66 DEG C that second, which raises temperature,.
8. the preparation method of novel silicate cement according to claim 6, it is characterized in that, the novel silicate cement
Average grain diameter be 13-17 μm.
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| CN201711435306.XA CN108033694A (en) | 2017-12-26 | 2017-12-26 | Novel silicate cement and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109265195A (en) * | 2018-10-23 | 2019-01-25 | 青海送变电工程有限公司 | A kind of chemical heat production curing means of transmission line of electricity pile driving construction and its maintenance process |
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| CN1559965A (en) * | 2004-02-26 | 2005-01-05 | 同济大学 | Non-chlorine type high perpormance conrete accelerating agent |
| CN103342480A (en) * | 2013-06-24 | 2013-10-09 | 天津山水水泥有限公司 | Novel Portland slag cement P.SA42.5 |
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2017
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1559965A (en) * | 2004-02-26 | 2005-01-05 | 同济大学 | Non-chlorine type high perpormance conrete accelerating agent |
| CN103342480A (en) * | 2013-06-24 | 2013-10-09 | 天津山水水泥有限公司 | Novel Portland slag cement P.SA42.5 |
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| 斯特列佐夫: "《煤矿井巷锚喷支护》", 30 September 1981, 煤炭工业出版社 * |
| 施惠生等: "《混凝土外加剂实用技术大全》", 31 January 2008, 中国建材工业出版社 * |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109265195A (en) * | 2018-10-23 | 2019-01-25 | 青海送变电工程有限公司 | A kind of chemical heat production curing means of transmission line of electricity pile driving construction and its maintenance process |
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Application publication date: 20180515 |