CN103922619A - Desulfurized gypsum-based hydraulic cementing material - Google Patents
Desulfurized gypsum-based hydraulic cementing material Download PDFInfo
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- CN103922619A CN103922619A CN201410106787.XA CN201410106787A CN103922619A CN 103922619 A CN103922619 A CN 103922619A CN 201410106787 A CN201410106787 A CN 201410106787A CN 103922619 A CN103922619 A CN 103922619A
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- slag
- desulfurized gypsum
- cement clinker
- desulfurated plaster
- gel material
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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 a desulfurized gypsum-based hydraulic cementing material, which comprises the following steps: 1)selecting the following raw materials by mass percentage for standby: 30-58% of desulfurized gypsum, 35-55% of mineral slag, 0-25% of cement clinker and 0-30% of steel slag; 2)grinding desulfurized gypsum, mineral slag, cement clinker and steel slag until the good particles graduation effect is generated, and mixing to obtain the desulfurized gypsum-based hydraulic cementing material. The desulfurized gypsum-based hydraulic cementing material has the following advantages that 1)the desulfurized gypsum-based hydraulic cementing material has excellent water resistance performance, 2)besides that cement clinker is a cement product, other raw materials are industrial solid wastes; 3)the technology is simple, the anaphase intensity can reach a standard of 42.5 ordinary portland cement; and 4)the fresh water resistance and seawater corrosion resistance performances of the hydraulic cementing material is better than that of the portland cement.
Description
Technical field
The invention belongs to trade waste greenization Application Areas, be specifically related to desulfurized gypsum base hydraulic glue gel material and preparation method thereof.
Background technology
Desulfurated plaster is the trade waste that fuel-burning power plant smoke-gas wet desulfurization produces, because 75% electric power in China's electrical network is all to be produced by coal fired power generation, and the pressure that certainly will cause desulfurated plaster to pile up.In application in the past, be all to add desulfurated plaster to regulate cement in cement time of coagulation, but its consumption is all lower.In addition, desulfurated plaster, because impurity in the unstable of technique and sweetening process sneaks into, causes color gloomy, has affected the application of effect plasterboard, with respect to the gypsum of natural cheapness, also there is no competitive edge.Therefore, the processing desulfurated plaster of large volume high-efficiency low energy consumption is not only the needs of protection of the environment, is also the Important Action that promotes energy industry greenization development.
Slag is to smelt in the process of the pig iron to produce, and is the important step of steel industry, and the iron and steel that every production is 1 ton approximately produces the slag of 0.5 ton.Slag is blast furnace ironmaking high temperature cooling remaining Vitrea residue rapidly, and abundant silicon-dioxide is contained in the inside, aluminium sesquioxide, and magnesium oxide, calcium oxide, the compositions such as ferric oxide, activity is higher.In application in the past, generally add in cement and reduce costs, can slowly increase concrete later strength, concrete void content is declined, permeability resistance strengthens simultaneously.
Slag is in Steel Plant's smelting process, the waste residue producing in the process that is converted into steel by the pig iron.There are a small amount of calcium hydroxide and tricalcium silicate, the crystalline phase compositions such as Dicalcium Phosphate (Feed Grade) in slag the inside.Its important use is also in cement industry, is used for producing clinker-free steel slag cement.
Grog is the main component in cement, and the aquation of cement is exactly the principal crystalline phase tricalcium silicate in grog, Dicalcium Phosphate (Feed Grade), tricalcium aluminate, the result of tetracalcium aluminoferrite combined reaction.Present cement clinker is mainly to be produced by rotary kiln and shaft kiln.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of desulfurized gypsum base hydraulic glue gel material and preparation method thereof for above-mentioned prior art, the method technique is simple, need not calcine, energy consumption is low, intensity can reach 32.5 ordinary Portland cement standards, and resistance to fresh water and sea washes performance are all strong compared with ordinary Portland cement.
The present invention solves the problems of the technologies described above adopted technical scheme: desulfurized gypsum base hydraulic glue gel material, it is by desulfurated plaster, slag, cement clinker, slag mixes, and the shared mass percent of each feed composition is: desulfurated plaster 30%～58%, slag 35%～55%, cement clinker 0%～25%, slag 0%～30%.
Press such scheme, the described shared mass percent of each feed composition is: desulfurated plaster 35%～46%, slag 40%～54%, cement clinker 1%～18%.
Press such scheme, the described shared mass percent of each feed composition is: desulfurated plaster 35%～46%, slag 40%～54%, slag 1%～24%.
Press such scheme, described slag is the blast-furnace slag that pig iron smeltery discharges.
Press such scheme, described slag is the waste residue that Steel Plant discharge.
The preparation method of described desulfurized gypsum base hydraulic glue gel material, comprises the steps:
1) by the shared mass percent of each raw material, be: desulfurated plaster 30%～58%, slag 35%～55%, cement clinker 0%～25%, slag 0%～30%, the shared mass percent sum of each raw material is 100%, chooses desulfurated plaster, slag, cement clinker, slag, standby;
2) desulfurization gypsum powder is milled to specific surface area 450～700 ㎡/kg, slag milling is to specific surface area 350～500 ㎡/kg, cement grog grinding to specific surface area is greater than 450 ㎡/kg, steel slag grinding to specific surface area is greater than 450 ㎡/kg, make it to there is good grain composition effect, after mixing, obtain desulfurized gypsum base hydraulic glue gel material; Or after desulfurated plaster, slag, cement clinker, slag are mixed, then grinding to specific surface area is greater than 450 ㎡/kg, obtains desulfurized gypsum base hydraulic glue gel material.
Desulfurated plaster of the present invention is that general fuel-burning power plant flue gas Wet Lime Desulfurization produces, and its main component is terra alba, and its impurity can have calcium sulfite, unburnt coal particle and soot particulates etc.; Slag is to smelt in the process of the pig iron to produce, and is a kind of activity glass body after high temperature cooling, mainly contains silicon-dioxide, aluminium sesquioxide, magnesium oxide, calcium oxide, the compositions such as ferric oxide; Slag is in Steel Plant's smelting process, the waste residue producing in the process that is converted into steel by the pig iron, and there are a small amount of calcium hydroxide and tricalcium silicate, the crystalline phase compositions such as Dicalcium Phosphate (Feed Grade) in slag the inside.
Compared with prior art, the present invention has the following advantages:
1. after desulfurated plaster, slag, cement clinker, slag being stirred with water according to the above ratio, there is the hydraulicity, activated alumina in slag, calcium oxide, silicon-dioxide etc. constantly dissolve under the alkaline excitation of cement clinker and slag, in conjunction with the sulfate ion dissolving in desulfurated plaster, generate a large amount of ettringite and Calucium Silicate powder hydrated product again, therefore there is excellent water resistance.
In desulfurated plaster, slag, cement clinker, slag except cement clinker is cement products, other raw materials are all industrial solid castoff, particularly the accumulation of desulfurated plaster causes no small pressure to environment, and in the present invention, the highest consumption of desulfurated plaster can reach 58%.
3. to make the technique of hydraulic glue gel material simple in the present invention, only needs ball milling raw material, and energy consumption is low, and the early strength of its hydrated product can reach the standard of 32.5 ordinary Portland cements, and later strength can reach the standard of 42.5 ordinary Portland cements.
4. the present invention makes the resistance to fresh water of hydraulic glue gel material and the performance of sea-water corrosion are all better than silicate cement.
Embodiment
Below in conjunction with embodiment, further illustrate the application's invention, but embodiment should not regard the restriction to right of the present invention as.
Embodiment 1:
By desulfurated plaster, slag, cement clinker and slag difference grinding, record desulfurated plaster specific surface area 600 ㎡/kg; Slag specific surface area 480 ㎡/kg; Cement clinker specific surface area 480 ㎡/kg, it is the blast-furnace slag that pig iron smeltery discharges that slag specific surface area 480 ㎡/kg seals standby, described slag up for safekeeping, described slag is the waste residue that Steel Plant discharge.
Above made desulfurated plaster, slag, cement clinker and slag are mixed by the proportioning of table 1, be prepared into desulfurized gypsum base hydraulic glue gel material.According to GB17671-1999 < < Test method for strength of hydraulic cement mortar > >, measure 3 days, 7 days, 28 days intensity of sample, standard consistency and time of coagulation are carried out (lower same) according to GB/T1364-2001 < < cement normal consistency water consumption stability time of coagulation > >, the results are shown in Table 1.
Table 1. is proportioning and the performance thereof of the desulfurized gypsum base hydraulic glue gel material of cement clinker consumption fixedly
Table 1 shows, when slag content reaches 40%, substantially can reach the standard of 32.5 ordinary Portland cements.When the volume of desulfurated plaster reaches 64%, though do not reach 32.5 ordinary Portland cement standards, can make the consumption of desulfurated plaster maximize.
Embodiment 2
By desulfurated plaster, slag, cement clinker and slag difference grinding, record desulfurated plaster specific surface area 600 ㎡/kg; Slag specific surface area 480 ㎡/kg; Cement clinker specific surface area 480 ㎡/kg, slag specific surface area 480 ㎡/kg seals up for safekeeping standby.
Above made desulfurated plaster, slag, cement clinker and slag are mixed by the proportioning of table 2, be prepared into desulfurized gypsum base hydraulic glue gel material.The results are shown in Table 2.
Table 2. changes proportioning and the performance thereof of the desulfurized gypsum base hydraulic glue gel material of cement clinker consumption
Table 2 shows, when cement clinker volume is only 2%, 28 days intensity can reach the standard of 42.5 ordinary Portland cements.
Embodiment 3
By desulfurated plaster, slag, cement clinker and slag difference grinding, record desulfurated plaster specific surface area 600 ㎡/kg; Slag specific surface area 480 ㎡/kg; Cement clinker specific surface area 480 ㎡/kg, slag specific surface area 480 ㎡/kg seals up for safekeeping standby.
Above made desulfurated plaster, slag, cement clinker and slag are mixed by the proportioning of table 3, be prepared into desulfurized gypsum base hydraulic glue gel material.The results are shown in Table 3.
Table 3. changes proportioning and the performance thereof of the desulfurized gypsum base hydraulic glue gel material of slag consumption
Table 3 shows, when steel slag content is 6%, 28 days intensity can reach the standard of 42.5 ordinary Portland cements.
Embodiment 4
By desulfurated plaster, slag, cement clinker and slag difference grinding, record desulfurated plaster specific surface area 300 ㎡/kg; Slag specific surface area 480 ㎡/kg; Cement clinker specific surface area 480 ㎡/kg, slag specific surface area 480 ㎡/kg seals up for safekeeping standby.
Above made desulfurated plaster, slag, cement clinker and slag are mixed by the proportioning of table 4, be prepared into desulfurized gypsum base hydraulic glue gel material.The results are shown in 4.
Table 4. changes proportioning and the performance thereof of the desulfurized gypsum base hydraulic glue gel material of cement clinker consumption
Table 4 shows, desulfurated plaster is only milled to specific surface area 300 ㎡/kg, and within 28 days, intensity just can reach the standard of 42.5 ordinary Portland cements.
Embodiment 5
By desulfurated plaster, slag, cement clinker and slag difference grinding, record desulfurated plaster specific surface area 600 ㎡/kg; Slag specific surface area 380 ㎡/kg; Cement clinker specific surface area 480 ㎡/kg, slag specific surface area 480 ㎡/kg seals up for safekeeping standby.
Above made desulfurated plaster, slag, cement clinker and slag are mixed by the proportioning of table 5, be prepared into desulfurized gypsum base hydraulic glue gel material.The results are shown in 5.
Table 5. changes proportioning and the performance thereof of the desulfurized gypsum base hydraulic glue gel material of cement clinker consumption
Table 5 shows, slag is only milled to specific surface area 380 ㎡/kg, and grain composition effect is more obvious, and within 28 days, intensity just can reach the standard of 42.5 ordinary Portland cements.
Embodiment 6
By desulfurated plaster, slag, cement clinker and slag difference grinding, record desulfurated plaster specific surface area 600 ㎡/kg; Slag specific surface area 480 ㎡/kg; Cement clinker specific surface area 480 ㎡/kg, slag specific surface area 480 ㎡/kg seals up for safekeeping standby.
Above made desulfurated plaster, slag, cement clinker and slag are mixed by the proportioning of table 6, be prepared into desulfurized gypsum base hydraulic glue gel material.The results are shown in 6.
Table 5. changes proportioning and the performance thereof of the desulfurized gypsum base hydraulic glue gel material of desulfurated plaster consumption
Table 6 shows, when desulfurated plaster volume reaches 56%, cement clinker consumption is only the standard that 4%, 28 day intensity can reach 32.5 ordinary Portland cements.
Each raw material and proportioning that the present invention is cited can realize the present invention, and bound value, the interval value of above each proportioning raw materials can be realized the present invention, at this, do not enumerate embodiment.
Claims (6)
1. desulfurized gypsum base hydraulic glue gel material, it is by desulfurated plaster, slag, cement clinker, slag mixes, and the shared mass percent of each feed composition is: desulfurated plaster 30%～58%, slag 35%～55%, cement clinker 0%～25%, slag 0%～30%.
2. desulfurized gypsum base hydraulic glue gel material according to claim 1, is characterized in that: the described shared mass percent of each feed composition is: desulfurated plaster 35%～46%, slag 40%～54%, cement clinker 1%～18%.
3. desulfurized gypsum base hydraulic glue gel material according to claim 1, is characterized in that: the described shared mass percent of each feed composition is: desulfurated plaster 35%～46%, slag 40%～54%, slag 1%～24%.
4. desulfurized gypsum base hydraulic glue gel material according to claim 1, is characterized in that: described slag is the blast-furnace slag that pig iron smeltery discharges.
5. desulfurized gypsum base hydraulic glue gel material according to claim 1, is characterized in that: described slag is the waste residue that Steel Plant discharge.
6. the preparation method of desulfurized gypsum base hydraulic glue gel material claimed in claim 1, comprises the steps:
1) by the shared mass percent of each raw material, be: desulfurated plaster 30%～58%, slag 35%～55%, cement clinker 0%～25%, slag 0%～30%, the shared mass percent sum of each raw material is 100%, chooses desulfurated plaster, slag, cement clinker, slag, standby;
2) desulfurization gypsum powder is milled to specific surface area 300～700 ㎡/kg, slag milling is to specific surface area 350～500 ㎡/kg, cement grog grinding to specific surface area is greater than 450 ㎡/kg, steel slag grinding to specific surface area is greater than 450 ㎡/kg, make it to there is good grain composition effect, after mixing, obtain desulfurized gypsum base hydraulic glue gel material; Or after desulfurated plaster, slag, cement clinker, slag are mixed, then grinding to specific surface area is greater than 450 ㎡/kg, obtains desulfurized gypsum base hydraulic glue gel material.
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| CN201410106787.XA CN103922619A (en) | 2014-03-21 | 2014-03-21 | Desulfurized gypsum-based hydraulic cementing material |
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| CN201410106787.XA CN103922619A (en) | 2014-03-21 | 2014-03-21 | Desulfurized gypsum-based hydraulic cementing material |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108083663A (en) * | 2017-12-19 | 2018-05-29 | 潍坊友容实业有限公司 | Utilize salt-soda soil hydraulic engineering cement and preparation method thereof made of desulfurized gesso of flue gas |
| CN109942211A (en) * | 2019-04-22 | 2019-06-28 | 郑州升达经贸管理学院 | A method of improving gypsum-slag cements early strength |
| CN111689752A (en) * | 2020-05-28 | 2020-09-22 | 山东大学 | Multi-source solid waste base grouting cementing material and preparation method and application thereof |
| CN112537914A (en) * | 2020-11-03 | 2021-03-23 | 河北博天建材科技有限公司 | Building gel material, preparation method and application thereof, concrete and preparation method thereof |
| CN113121179A (en) * | 2021-04-13 | 2021-07-16 | 上海茶卡科技发展有限公司 | High-fluidity quick-setting filling cementing material under low-temperature condition |
| CN115321848A (en) * | 2022-08-05 | 2022-11-11 | 段崇国 | Full-solid waste-based low-carbon green ecological cementing material and manufacturing method thereof |
| CN115925290A (en) * | 2022-07-28 | 2023-04-07 | 华润水泥技术研发有限公司 | Grinding prepared cement and preparation method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108083663A (en) * | 2017-12-19 | 2018-05-29 | 潍坊友容实业有限公司 | Utilize salt-soda soil hydraulic engineering cement and preparation method thereof made of desulfurized gesso of flue gas |
| CN109942211A (en) * | 2019-04-22 | 2019-06-28 | 郑州升达经贸管理学院 | A method of improving gypsum-slag cements early strength |
| CN111689752A (en) * | 2020-05-28 | 2020-09-22 | 山东大学 | Multi-source solid waste base grouting cementing material and preparation method and application thereof |
| CN111689752B (en) * | 2020-05-28 | 2021-06-01 | 山东大学 | Multi-source solid waste base grouting cementing material and preparation method and application thereof |
| CN112537914A (en) * | 2020-11-03 | 2021-03-23 | 河北博天建材科技有限公司 | Building gel material, preparation method and application thereof, concrete and preparation method thereof |
| CN113121179A (en) * | 2021-04-13 | 2021-07-16 | 上海茶卡科技发展有限公司 | High-fluidity quick-setting filling cementing material under low-temperature condition |
| CN115925290A (en) * | 2022-07-28 | 2023-04-07 | 华润水泥技术研发有限公司 | Grinding prepared cement and preparation method thereof |
| CN115321848A (en) * | 2022-08-05 | 2022-11-11 | 段崇国 | Full-solid waste-based low-carbon green ecological cementing material and manufacturing method thereof |
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Application publication date: 20140716 |