CN110255943A - A kind of wet-milling barium slag admixture and its preparation method and application - Google Patents
A kind of wet-milling barium slag admixture and its preparation method and application Download PDFInfo
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- CN110255943A CN110255943A CN201910291023.5A CN201910291023A CN110255943A CN 110255943 A CN110255943 A CN 110255943A CN 201910291023 A CN201910291023 A CN 201910291023A CN 110255943 A CN110255943 A CN 110255943A
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- wet
- barium slag
- cement
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- admixture
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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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/026—Comminuting, e.g. by grinding or breaking; Defibrillating fibres other than asbestos
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- 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 present invention provides a kind of wet-milling barium slag admixture and its preparation method and application, the wet-milling barium slag admixture, by mass percentage, it is mainly made by following components through wet-grinding technology and relative device: barium slag: 25-40%, promotor: 1-3%, surface modifier: 1-3%, surplus are water.The present invention is using barium slag as primary raw material, using wet-grinding technology and relative device, improve its fineness, increase its specific surface area, promote barium in barium slag, calcium, aluminum ions dissolution, it may advantageously facilitate cement early hydration, and then improve the early strength of cement-based material, and barium slag can provide suitable alkaline environment for the aquation of cement, and then be conducive to improve its reaction efficiency for participating in hydrated reaction of cement, after being replaced cement, it can guarantee that the later strength of cement-based material will not decline or even be improved, wet-milling barium slag admixture of the invention may replace the cement of 10-20%, a kind of new direction is provided for the resource utilization of barium slag, substantially increase the resource utilization rate of barium slag.
Description
Technical field
The present invention relates to building material technical field, in particular to a kind of wet-milling barium slag admixture and preparation method thereof and answer
With.
Background technique
Barium slag is that the solid waste being discharged during production barium salt is refined with barite, and ingredient mainly contains acid-soluble
Barium and water-soluble barium, have toxicity, are danger wastes.If barium slag is stacked for a long time, a large amount of soils, and solarization are not only taken up
It is easy to happen spontaneous combustion under high temperature, is given off poisonous gas, through rain penetration, produces the leachate contamination water body of sulfur compound, is given up simultaneously
Barium sulphide and acid-soluble barium can generate damaging effect to soil in slag.Currently, the Barium Residue is at me with the development of chemical engineering industry
The yield of state is increasing, reaches 400,000 t within 2006, and with the development of production, 2009, which are only Guizhou Red Star, develops share public affairs
Department's barium carbonate year yield has just reached 300,000 t barium slag yields and has also increased year by year.Due to processing approach it is limited, at present mainly with
Based on stacking, barium slag accumulative stockpiling in China's alreadys exceed ten million ton, very necessary to the comprehensive utilization of barium slag.
It is less as the research that is utilized of exploiting natural resources about barium slag at present, and cement concrete is big as capital construction industry
Ancestor utilizes material, it usually needs admixture is added to improve its performance and reduce its production cost, but commonly uses in cement concrete
The problem of admixture such as flyash, slag etc. faces resource scarcity contains a certain amount of cement clinker mineral in barium slag, main
Chemical composition is SiO2, CaO, Al2O3, therefore BaO etc. if barium slag to be used for the preparation of cement concrete admixture, provides it
Source utilizes and has a very important significance.
Summary of the invention
In view of this, the present invention is directed to propose a kind of wet-milling barium slag admixture, to solve existing barium slag resource utilization rate
Low problem.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of wet-milling barium slag admixture, by mass percentage, the wet-milling barium slag admixture is by following components through wet-milling
Technique is made: barium slag: 25-40%, promotor: 1-3%, surface modifier: 1-3%, surplus are water.
Optionally, the promotor is the aqueous solution of triethanolamine and triisopropanolamine；By mass percentage, the water
Triethanolamine described in solution is 10-30%, and the triisopropanolamine is 10-30%.
Optionally, the surface modifier is the aqueous solution of polycarboxylate water-reducer and konjac glucomannan；By mass percentage, institute
Stating polycarboxylate water-reducer described in aqueous solution is 5-10%, and the konjac glucomannan is 0.01-0.05%.
Optionally, the median particle diameter of the wet-milling barium slag admixture is 2-3 μm.
The second object of the present invention is to provide a kind of method for preparing above-mentioned wet-milling barium slag admixture, the preparation method packet
Include following steps:
The barium slag, the promotor, the surface modifier and the water are mixed to get mixed material A；
It is using wet-grinding technology and relative device that the mixed material A is levigate to get wet-milling barium slag admixture.
The third object of the present invention is to provide a kind of application of above-mentioned wet-milling barium slag admixture in cement-based material,
In the application, the cement-based material includes cement；The wet-milling barium slag admixture equivalent replaces 10~20% cement.
Compared with the existing technology, wet-milling barium slag admixture of the present invention has the advantage that
1, wet-milling barium slag admixture of the invention is using barium slag as primary raw material, using wet-grinding technology and relative device, improves its fineness, increases
Its specific surface area promotes barium in barium slag, calcium, aluminum ions dissolution, may advantageously facilitate cement early hydration, and then improve cement
The early strength of sill, and barium slag can provide suitable alkaline environment for the aquation of cement, and then be conducive to improve its ginseng
With the reaction efficiency of hydrated reaction of cement, thus after being replaced cement, it is ensured that the later strength of cement-based material will not under
Drop is even improved, and wet-milling barium slag admixture of the invention may replace the cement of 10-20%, and the resource utilization for barium slag provides
A kind of new direction, substantially increases the resource utilization rate of barium slag, and improves the added value of barium residue product, and the present invention adopts
After replacing cement with barium slag admixture, the dosage of cementitious material can be reduced, and then advantageously reduce being produced into for cement-based material
This.
2, the present invention prepares barium slag admixture using wet milling process, and preparation process is simple, and preparation process is easy to control, Er Qieben
Surface modifier and promotor is added in invention during wet-milling, on the one hand, can further improve wet-grinding efficiency, and then reduces system
On the other hand standby energy consumption can make wet-milling barium slag admixture of the invention with good stability and dispersed, be used for water
The mobility of slurry can be improved in cement concrete, to be conducive to improve its adaptability.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
Below in conjunction with embodiment, the present invention will be described in detail.
Table 1 is the proportion and each embodiment of each component in the wet-milling barium slag admixture of 1~embodiment of the embodiment of the present invention 4
The fineness of wet-milling barium slag admixture.Table 2 is the component of promotor and surface modifier in 1~embodiment of the embodiment of the present invention 4.
Table 1
Table 2
Using the wet-milling barium slag admixture of following methods preparation 1~embodiment of embodiment 4, specifically includes the following steps:
According to above-mentioned raw materials formula, first barium slag is put into wet milk, then addition promotor and surface modifier, then plus
Enter water, obtains mixed material A；
Wet milk is opened, mixed material A is levigate, until the median particle diameter of mixed material A reaches 2-3 μm, filter out grinding
Body is to get wet-milling barium slag admixture.
The wet-milling barium slag admixture of 1~embodiment of embodiment 4 is used for cement-based material, in this application, cement matrix
Material includes cement；Wet-milling barium slag admixture equivalent replaces 10~20% cement, i.e., mixes 10~20% in wet-milling barium slag admixture.
Cement-based material of the reference standard GB8076-2008 to the wet-milling barium slag admixture mixed with 1~embodiment of embodiment 4
(cement mortar) carries out the test of mechanical property, and it is carried out with the cement-based material for not mixing wet-milling barium slag admixture of the present invention
It compares (comparative example), wherein the water-cement ratio of cement-based material is 0.38.Test result is as shown in table 3.
Table 3
As shown in Table 3, it is general when the wet-milling barium slag admixture equivalent of 1~embodiment of embodiment 4 replaces the cement of 10-20%
Logical silicate cement cement mortar 3d, 7d, 28d compression strength is above comparative example, illustrates the wet-milling barium slag of 1~embodiment of embodiment 4
The addition of admixture can promote cement fast hydration, so that the early strength of cement-based material is significantly promoted, and the later period
Intensity remains to maintain not decline or even realize certain growth, the value with large-scale promotion.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of wet-milling barium slag admixture, which is characterized in that by mass percentage, the wet-milling barium slag admixture is by with the following group
Lease making wet-grinding technology and relative device is made: barium slag: 25-40%, promotor: 1-3%, surface modifier: 1-3%, surplus are water.
2. wet-milling barium slag admixture according to claim 1, which is characterized in that the promotor is that triethanolamine and three are different
The aqueous solution of Propanolamine；By mass percentage, triethanolamine described in the aqueous solution is 10-30%, three isopropanol
Amine is 10-30%.
3. wet-milling barium slag admixture according to claim 1, which is characterized in that the surface modifier is polycarboxylic acids diminishing
The aqueous solution of agent and konjac glucomannan；By mass percentage, polycarboxylate water-reducer described in the aqueous solution is 5-10%, the evil spirit
Taro glue is 0.01-0.05%.
4. wet-milling barium slag admixture according to claim 1, which is characterized in that the intermediate value grain of the wet-milling barium slag admixture
Diameter is 2-3 μm.
5. the method for preparing the described in any item wet-milling barium slag admixtures of Claims 1-4, which is characterized in that including following step
It is rapid:
The barium slag, the promotor, the surface modifier and the water are mixed to get mixed material A；
It is using wet-grinding technology and relative device that the mixed material A is levigate to get wet-milling barium slag admixture.
6. application of the described in any item wet-milling barium slag admixtures of Claims 1-4 in cement-based material, which is characterized in that
The cement-based material includes cement；The wet-milling barium slag admixture equivalent replaces 10~20% cement.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114685106A (en) * | 2022-04-26 | 2022-07-01 | 湖北工业大学 | Heat-insulating wear-resistant alkali-activated repair mortar and preparation method thereof |
| CN115073089A (en) * | 2022-06-14 | 2022-09-20 | 生态环境部华南环境科学研究所(生态环境部生态环境应急研究所) | Process and equipment for preparing non-autoclaved aerated concrete material by utilizing barium slag |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114685106A (en) * | 2022-04-26 | 2022-07-01 | 湖北工业大学 | Heat-insulating wear-resistant alkali-activated repair mortar and preparation method thereof |
| CN115073089A (en) * | 2022-06-14 | 2022-09-20 | 生态环境部华南环境科学研究所(生态环境部生态环境应急研究所) | Process and equipment for preparing non-autoclaved aerated concrete material by utilizing barium slag |
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| CN110255943B (en) | 2022-03-25 |
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