CN104761162A - Slag Portland cement and preparing method thereof - Google Patents
Slag Portland cement and preparing method thereof Download PDFInfo
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- CN104761162A CN104761162A CN201510127670.4A CN201510127670A CN104761162A CN 104761162 A CN104761162 A CN 104761162A CN 201510127670 A CN201510127670 A CN 201510127670A CN 104761162 A CN104761162 A CN 104761162A
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- slag
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- 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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Abstract
The invention relates to slag Portland cement and a preparing method thereof and relates to the field of building materials. The slag Portland cement comprises following components by mass: (1) 30.0-65.0% of silicate Portland cement clinker, (2) 5.0-15.0% of copper slag, (3) 15.0-30.0% of blast furnace slag, (4) 5.0-15.0% of molybdenum slag, (5) 5.0-12.0% of flue dust and (6) 2.5-5.0% of gypsum. The slag Portland cement is high in hydraulicity performance, short in interval between initial setting time and final setting time, high in later strength, high in compression resistance and suitable for use in various occasions. The preparing method adopts a process including primary smashing, mixing and grinding. The prepared cement is low in particle size, uniform in quality, high in specific surface area, and improved in hydraulicity performance.
Description
Technical field
The invention belongs to building material field, particularly the preparation method of a kind of Portland blast furnace slag cement and this cement.
Background technology
Portland blast furnace slag cement, also known as slag cement, is the premium properties utilizing slag, joins among cement, as the aggregate of hydraulicity gelatinous material.Wherein, the application of blast-furnace slag as extensively, the wear resisting property excellent with it and non-skid property, coordinate cement clinker and gypsum, provide not only the hydraulicity performance of cement, and too increase the range of application of cement, can use as subsidiary material on some extraordinary road surfaces.
Application number is the patent documentation " a kind of silicate impervious cement " of 200810033235.5, disclose a kind of Portland blast furnace slag cement, the weight proportion of described cement is: grinding fine cement grog 35% ~ 50%, slag powders 10% ~ 20%, flyash 15% ~ 25%, steel-making slag powder 5% ~ 10%, silica flour 1% ~ 10%.It can thus be appreciated that, add slag part and steel-making slag powder in the technical scheme of cement, provide hardness and the intensity of cement, but, the hydraulicity of cement is affected, and slag powders itself has certain hydraulicity, but not through the dual activation of gypsum and cement clinker, its hydraulic properties is comparatively general, only the effect of cement clinker and other compositions, can not reach higher hydraulicity standard, and the presetting period is long, setting rate is slow, and after causing sclerosis, the performance of cement is affected.
Application number is the patent documentation " a kind of novel slag portland P.SB42.5 cement " of 201310253104.9, discloses a kind of Portland blast furnace slag cement, and it forms component and weight percentage ranges is respectively: grog 64-66%; Wingdale 4-6%; Slag 23-27%; Desulfurated plaster 4-6%.It can thus be appreciated that, the cement that this technical scheme provides, the content of its slag is the 23-27% of total mass, and add Wingdale and gypsum, its hydraulicity and late hardness are guaranteed, but use under being only adapted at general occasion, can not be used for the comparatively strict field of hardness requirement.
Summary of the invention
The technical problem that the present invention solves: for above-mentioned deficiency, overcome the defect of prior art, the object of this invention is to provide a kind of Portland blast furnace slag cement and preparation method thereof.
Technical scheme of the present invention: a kind of Portland blast furnace slag cement, comprises each component of following mass percent:
(1) Portland clinker 30.0%-65.0%;
(2) Copper Slag 5.0%-15.0%;
(3) blast-furnace slag 15.0%-30.0%;
(4) molybdenum slag 5.0%-15.0%;
(5) flue dust 5.0%-12.0%;
(6) gypsum 2.5%-5.0%.
As preferably, the mass percent of molybdenum slag is 6.0%-10.0%.
As preferably, gypsum is desulfurated plaster.
As preferably, blast-furnace slag is foundry iron slag or conversion pig slag.
A preparation method for Portland blast furnace slag cement, preparation process is as follows:
(1) get the raw materials ready: the mass content according to each component accurately takes each component;
(2) pulverize: Copper Slag, blast-furnace slag and molybdenum slag are carried out pulverization process, and the median size to powder is 100-200um;
(3) grinding: each component is mixed according to mass percent and carries out grinding, be 75-100um to median size, namely obtain Portland blast furnace slag cement.
As preferably, the median size after step (2) Copper Slag, blast-furnace slag and molybdenum ground-slag are broken is 100-120um.
Beneficial effect: Portland blast furnace slag cement provided by the invention is the feature utilizing slag, ensures the hydraulicity of cement, hardness and intensity, the slag that traditional Portland blast furnace slag cement is selected is all comparatively single, be generally blast-furnace slag, part adopts Copper Slag, seldom adopts other slags.Therefore, the present invention, for better improving hardness and the intensity of cement, selected Copper Slag and molybdenum slag, in two kinds of slags, the content of silicon-dioxide is higher, simultaneously containing certain copper and molybdenum element, abrasion resistance and the non-skid property in cement later stage can be provided, add certain pig iron slag simultaneously, provide the content of Fe in cement.On the other hand, under the dual function of gypsum and cement clinker, the hydraulicity of slag is activated, and provides the hydraulicity performance of cement.Therefore, the invention provides Portland blast furnace slag cement hydraulicity performance good, the presetting period and final setting time interval shorter; And the later strength of cement is higher, there is higher compressive property, use under being adapted at multiple occasion.
The preparation method of Portland blast furnace slag cement provided by the invention, be the technique adopting preliminary pulverizing and combined grinding, the finished ground cement granularity of preparation is less, and quality is homogeneous, and specific surface area is comparatively large, improves the hydraulicity performance of cement.
Embodiment
In order to understand the present invention further, below in conjunction with embodiment, the preferred embodiment of the invention is described, but should be appreciated that these describe just for further illustrating the features and advantages of the present invention, instead of limiting to the claimed invention.
Embodiment 1:
A kind of Portland blast furnace slag cement, comprises each component of following mass percent:
(1) Portland clinker 30.0%;
(2) Copper Slag 15.0%;
(3) foundry iron slag 30.0%;
(4) molybdenum 12.0%;
(5) flue dust 8.0%;
(6) desulfurated plaster 5.0%.
Prepare Portland blast furnace slag cement according to preparation method provided by the invention, preparation process is as follows:
(1) get the raw materials ready: the mass content according to each component accurately takes each component;
(2) pulverize: Copper Slag, foundry iron slag and molybdenum slag are carried out pulverization process, and the median size to powder is 120um;
(3) grinding: each component is mixed according to mass percent and carries out grinding, be 100um to median size, namely obtain Portland blast furnace slag cement.
Embodiment 2:
A kind of Portland blast furnace slag cement, comprises each component of following mass percent:
(1) Portland clinker 65.0%;
(2) Copper Slag 5.0%%;
(3) foundry iron slag 15.5%;
(4) molybdenum slag 5.5%;
(5) flue dust 6.5%;
(6) desulfurated plaster 2.5%.
Prepare Portland blast furnace slag cement according to preparation method provided by the invention, preparation process is as follows:
(1) get the raw materials ready: the mass content according to each component accurately takes each component;
(2) pulverize: Copper Slag, foundry iron slag and molybdenum slag are carried out pulverization process, and the median size to powder is 120um;
(3) grinding: each component is mixed according to mass percent and carries out grinding, be 100um to median size, namely obtain Portland blast furnace slag cement.
Embodiment 3:
A kind of Portland blast furnace slag cement, comprises each component of following mass percent:
(1) Portland clinker 45.0%;
(2) Copper Slag 10.0%;
(3) foundry iron slag 20.0%;
(4) molybdenum slag 10.0%;
(5) flue dust 10.0%;
(6) desulfurated plaster 5.0%.
Prepare Portland blast furnace slag cement according to preparation method provided by the invention, preparation process is as follows:
(1) get the raw materials ready: the mass content according to each component accurately takes each component;
(2) pulverize: Copper Slag, foundry iron slag and molybdenum slag are carried out pulverization process, and the median size to powder is 120um;
(3) grinding: each component is mixed according to mass percent and carries out grinding, be 100um to median size, namely obtain Portland blast furnace slag cement.
Embodiment 4:
A kind of Portland blast furnace slag cement, comprises each component of following mass percent:
(1) Portland clinker 45.0%;
(2) Copper Slag 12.0%;
(3) conversion pig slag 22.0%;
(4) molybdenum slag 7.0%;
(5) flue dust 10.0%;
(6) desulfurated plaster 4.0%.
Prepare Portland blast furnace slag cement according to preparation method provided by the invention, preparation process is as follows:
(1) get the raw materials ready: the mass content according to each component accurately takes each component;
(2) pulverize: Copper Slag, conversion pig slag and molybdenum slag are carried out pulverization process, and the median size to powder is 120um;
(3) grinding: each component is mixed according to mass percent and carries out grinding, be 85um to median size, namely obtain Portland blast furnace slag cement.
Embodiment 5:
A kind of Portland blast furnace slag cement, comprises each component of following mass percent:
(1) Portland clinker 50.0%;
(2) Copper Slag 8.0%;
(3) conversion pig slag 20.0%;
(4) molybdenum slag 8.0%;
(5) flue dust 10.0%;
(6) desulfurated plaster 4.0%.
Prepare Portland blast furnace slag cement according to preparation method provided by the invention, preparation process is as follows:
(1) get the raw materials ready: the mass content according to each component accurately takes each component;
(2) pulverize: Copper Slag, conversion pig slag and molybdenum slag are carried out pulverization process, and the median size to powder is 100;
(3) grinding: each component is mixed according to mass percent and carries out grinding, be 75um to median size, namely obtain Portland blast furnace slag cement.
The Portland blast furnace slag cement above-mentioned embodiment provided is as experimental group; Preparing Portland blast furnace slag cement according to the disclosed technical scheme of patent documentation " a kind of novel slag portland P.SB42.5 cement " that application number is 201310253104.9, is control group; Experimental group and control group are carried out performance test respectively.
(1) time of coagulation
Carry out cement setting time test to the Portland blast furnace slag cement of embodiment 1-5 and control group, result is as shown in table 1 below:
The time of coagulation of table 1 Portland blast furnace slag cement measures (unit: min)
As seen from table, on the presetting period, embodiment 1-5 is all longer than control group, and wherein the presetting period of embodiment 5 is the longest; On final setting time, control group is longer, and embodiment 1-5 is all shorter than control group, and the interval of embodiment 1-5 initial set and final setting time is shorter than control group, and wherein the interval of embodiment 5 is the shortest.
(2) compressive property
Measure the compressive property of embodiment 1-5 and control group, result is as shown in table 2:
Table 2 Portland blast furnace slag cement compressive property test (unit: MPa)
| Ultimate compression strength | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Control group |
| 7d | 42.5 | 35.3 | 40.7 | 42.2 | 48.5 | 22.3 |
| 28d | 66.4 | 58.3 | 61.2 | 65.4 | 68.1 | 42.3 |
As seen from the above table, in 7d and 28d ultimate compression strength performance, embodiment 1-5 is all significantly higher than control group, and wherein the compressive property of embodiment 5 is optimum.
In sum, Portland blast furnace slag cement provided by the invention, has hydraulicity performance good, the feature that compressive property is excellent, is a kind of ideal Portland blast furnace slag cement.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (6)
1. a Portland blast furnace slag cement, is characterized in that, comprises each component of following mass percent:
(1) Portland clinker 30.0%-65.0%;
(2) Copper Slag 5.0%-15.0%;
(3) blast-furnace slag 15.0%-30.0%;
(4) molybdenum slag 5.0%-15.0%;
(5) flue dust 5.0%-12.0%;
(6) gypsum 2.5%-5.0%.
2. Portland blast furnace slag cement according to claim 1, is characterized in that: the mass percent of described molybdenum slag is 6.0%-10.0%.
3. Portland blast furnace slag cement according to claim 1, is characterized in that: described gypsum is desulfurated plaster.
4. Portland blast furnace slag cement according to claim 1, is characterized in that: described blast-furnace slag is foundry iron slag or conversion pig slag.
5. a preparation method for Portland blast furnace slag cement according to claim 1, is characterized in that, preparation process is as follows:
(1) get the raw materials ready: the mass content according to each component accurately takes each component;
(2) pulverize: Copper Slag, blast-furnace slag and molybdenum slag are carried out pulverization process, and the median size to powder is 100-200um;
(3) grinding: each component is mixed according to mass percent and carries out grinding, be 75-100um to median size, namely obtain Portland blast furnace slag cement.
6. the preparation method of Portland blast furnace slag cement according to claim 5, is characterized in that: the median size after step (2) Copper Slag, blast-furnace slag and molybdenum ground-slag are broken is 100-120um.
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| CN201510127670.4A CN104761162A (en) | 2015-03-23 | 2015-03-23 | Slag Portland cement and preparing method thereof |
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| CN201510127670.4A CN104761162A (en) | 2015-03-23 | 2015-03-23 | Slag Portland cement and preparing method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105884220A (en) * | 2016-04-12 | 2016-08-24 | 李奇峰 | Cement containing slag powder and preparation method of cement |
| CN106673518A (en) * | 2016-12-13 | 2017-05-17 | 安庆市吉美装饰材料有限责任公司 | High-strength decorative board |
| CN107986648A (en) * | 2017-12-26 | 2018-05-04 | 天津山水水泥有限公司 | Portland slag cement and preparation method thereof |
| CN109626900A (en) * | 2018-12-26 | 2019-04-16 | 福建源鑫建材有限公司 | A kind of portland slag cement and its production method |
| CN109694208A (en) * | 2017-10-20 | 2019-04-30 | 谢思松 | A kind of powder curing agent and preparation method thereof for expanded perlite thermal-nsulation plate |
| US20200317568A1 (en) * | 2019-04-04 | 2020-10-08 | Richard Bueble | Method for the Production of Portland Cement Composition with Low Embodied Energy and Carbon for Abrasion Resistant Concrete and Mortar |
| CN113233799A (en) * | 2021-05-26 | 2021-08-10 | 河南省豫鹤同力水泥有限公司 | Cement clinker prepared by using flue dust as iron correction raw material and production method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1258653A (en) * | 2000-01-10 | 2000-07-05 | 王绍华 | Composite portland cement |
-
2015
- 2015-03-23 CN CN201510127670.4A patent/CN104761162A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1258653A (en) * | 2000-01-10 | 2000-07-05 | 王绍华 | Composite portland cement |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105884220A (en) * | 2016-04-12 | 2016-08-24 | 李奇峰 | Cement containing slag powder and preparation method of cement |
| CN106673518A (en) * | 2016-12-13 | 2017-05-17 | 安庆市吉美装饰材料有限责任公司 | High-strength decorative board |
| CN109694208A (en) * | 2017-10-20 | 2019-04-30 | 谢思松 | A kind of powder curing agent and preparation method thereof for expanded perlite thermal-nsulation plate |
| CN109694208B (en) * | 2017-10-20 | 2021-09-03 | 谢思松 | Powder curing agent for expanded perlite insulation board and preparation method thereof |
| CN107986648A (en) * | 2017-12-26 | 2018-05-04 | 天津山水水泥有限公司 | Portland slag cement and preparation method thereof |
| CN109626900A (en) * | 2018-12-26 | 2019-04-16 | 福建源鑫建材有限公司 | A kind of portland slag cement and its production method |
| US20200317568A1 (en) * | 2019-04-04 | 2020-10-08 | Richard Bueble | Method for the Production of Portland Cement Composition with Low Embodied Energy and Carbon for Abrasion Resistant Concrete and Mortar |
| US11608293B2 (en) * | 2019-04-04 | 2023-03-21 | Richard Bueble | Method for the production of Portland cement composition with low embodied energy and carbon for abrasion resistant concrete and mortar |
| CN113233799A (en) * | 2021-05-26 | 2021-08-10 | 河南省豫鹤同力水泥有限公司 | Cement clinker prepared by using flue dust as iron correction raw material and production method thereof |
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Application publication date: 20150708 |
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