CN108218259A - Using electrolytic manganese residues the method for concrete and concrete prepared therefrom are prepared as retarder - Google Patents

Using electrolytic manganese residues the method for concrete and concrete prepared therefrom are prepared as retarder Download PDF

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Publication number
CN108218259A
CN108218259A CN201810051193.1A CN201810051193A CN108218259A CN 108218259 A CN108218259 A CN 108218259A CN 201810051193 A CN201810051193 A CN 201810051193A CN 108218259 A CN108218259 A CN 108218259A
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concrete
manganese
mixture
slag
calcined
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CN108218259B (en
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成昊
叶芬
石维
常军
冷森林
吴思展
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Tongren University
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Tongren University
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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B7/00Hydraulic cements
    • C04B7/14Cements containing slag
    • C04B7/147Metallurgical slag
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B5/00Treatment of metallurgical slag; Artificial stone from molten metallurgical slag
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B7/00Hydraulic cements
    • C04B7/36Manufacture of hydraulic cements in general
    • C04B7/38Preparing or treating the raw materials individually or as batches, e.g. mixing with fuel
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2103/00Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/20Retarders
    • C04B2103/22Set retarders
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00Technologies relating to the processing of minerals
    • Y02P40/10Production of cement, e.g. improving or optimising the production methods; Cement grinding

Abstract

The present invention relates to building material field, and more particularly to the method for concrete and concrete prepared therefrom are prepared as retarder using electrolytic manganese residues;This method includes manganese slag manganese slurry body is made, and adds burnt slag powders in manganese slurry body, obtains the first mixture;Basic modifier is added in the first mixture, obtains the second mixture;Second mixture is dried, then adds cement slurry, is calcined, obtains the first calcined material;Water-reducing agent and clinker are added in the first calcined material, is calcined;Concrete prepared by this method contains less ammonia, reduces the generation of scum phenomenon;And the concrete has higher compression strength and flexural strength etc..

Description

Using electrolytic manganese residues the method for concrete and prepared therefrom mixed is prepared as retarder Solidifying soil
Technical field
The present invention relates to building material field, and the method for more particularly to preparing concrete as retarder using electrolytic manganese residues And concrete prepared therefrom.
Background technology
The characteristics of concrete has abundant raw material, cheap, simple production process, thus make its dosage increasing. Concrete also has the features such as compression strength is high, and durability is good, and strength grade range is wide simultaneously.These features make its use scope It is very extensive, it is not only used in various civil engineerings, is exactly shipbuilding industry, mechanical industry, the exploitation of ocean, geothermal engineering etc., Concrete is also important material.
With the promotion of concrete material and technology, more and more materials are used for concrete.China's high yield manganese, manganese metal It is by made from electrolyzing manganese sulfate solution;A large amount of filter-press residues i.e. electrolytic manganese residues can be generated in production process.This waste residue mesh Before lack effective and sustainable interests approach, generally land-fill method is taken to be handled, but its accumulating amount increasingly increases, no The only development of appropriation of land, contaminated soil, restriction enterprise, and the pollution of lithic drainage can be caused.
At present, manganese slag is gradually used in the production of construction material, still, in the existing method using manganese slag There are still some problems to need to be improved.The building materials prepared in the prior art with manganese slag, it is still desirable to further improve material Resistance to compression, it is anti-folding etc. abilities, and need improve material scum the problems such as.
Invention content
The purpose of the present invention is to provide a kind of method for preparing concrete as retarder using electrolytic manganese residues, the preparation sides Method advantageously reduces the content of the ammonia in manganese slag;The preparation method of concrete of the present invention can also improve the strong of concrete obtained The problem of degree, improvement concrete scum, promotes the multiple performance of the concrete of preparation.
Another object of the present invention is to provide a kind of concrete, the total content of ammonia is few in the concrete, improves concrete Scum problem;And the concrete has higher compression strength and flexural strength etc..
What the present invention adopts the following technical solutions to realize.
The present invention proposes a kind of method for preparing concrete as retarder using electrolytic manganese residues, including manganese slag is made manganese Slurry body adds burnt slag powders in manganese slurry body, obtains the first mixture;Alkalinity is added in the first mixture to change Property agent, obtains the second mixture;Second mixture is dried, then adds cement slurry, is calcined, obtains the first calcined material; Water-reducing agent and clinker are added in the first calcined material, is calcined.
The present invention proposes a kind of concrete, is by the above-mentioned method for preparing concrete as retarder using electrolytic manganese residues It prepares.
The embodiment of the present invention prepares the method for concrete and concrete prepared therefrom using electrolytic manganese residues as retarder Advantageous effect be:
Manganese slurry body is first prepared in the method for preparing concrete as retarder using electrolytic manganese residues of the present invention, in manganese slag The part ammonia contained can be dissolved in the water of slurry, and then reduces the residual quantity of ammonia in manganese slag;The present invention is in the second mixture Middle first addition cement slurry is calcined, and on the one hand can be increased the volatilization of remaining ammonia in manganese slag, on the other hand can forged Cement slurry is made to be changed into clinker during burning, and compression strength and flexural strength for improving mixture entirety etc., It also is able to improve the binding ability of salts substances in mixture so that salts substances are not easy to be precipitated;To once being forged excessively Water-reducing agent is added in the mixture of burning and clinker is calcined again, in addition to can further promote remaining ammonia volatilization, is subtracted The content of ammonia in few concrete, additionally it is possible to it further reduces the free water in concrete and combines the content of water, and into The compression strength and flexural strength of concrete are improved to one step, improves the binding ability of salts substances in concrete, reduces salt The eduction rate of substance.
The total content of ammonia is few in the concrete of the present invention, and can reduce the generation of scum phenomenon;And the concrete has There are higher compression strength and flexural strength etc..
Specific embodiment
Purpose, technical scheme and advantage to make the embodiment of the present invention are clearer, below will be in the embodiment of the present invention Technical solution be clearly and completely described.The person that is not specified actual conditions in embodiment, builds according to normal condition or manufacturer The condition of view carries out.Reagents or instruments used without specified manufacturer is the conventional production that can be obtained by commercially available purchase Product.
As retarder prepared by the method for concrete and prepared therefrom using electrolytic manganese residues to the embodiment of the present invention below Concrete is specifically described.
The present invention using electrolytic manganese residues in the method that retarder prepares concrete, the raw material that uses includes manganese slag, ore deposit Ground-slag, basic modifier, cement slurry, water-reducing agent and clinker.
The method of the present invention includes manganese slag is made manganese slurry body, burnt slag powders are added in manganese slurry body, are obtained To the first mixture.
The preparation method of above-mentioned manganese slurry body can include:Manganese slag is made an addition in water, is stirred, the rotating speed of stirring is 500-1000r/min, and preferably, manganese slag can be made an addition in the water that water temperature is 90-120 DEG C, and in the process of stirring The temperature of the mixture of middle holding manganese slag and water is 90-120 DEG C.Further, the time of above-mentioned stirring can be 3-5h.By manganese Slag, which makes an addition to, can make remaining ammonia volatilization in manganese slag after stirring in hot water, and then reduce remaining ammonia amount in manganese slag;It needs It is bright, manganese slurry body is prepared at hotter temperature and also helps subsequent manganese slag modification.Manganese slag in the present invention is powder Shape, grain size can be 200-300 mesh.
Burnt slag powders are added in the manganese slurry body prepared according to the method described above, i.e. available first is mixed after stirring Close object.In detail, burnt slag powders can be made an addition into manganese slurry body when the temperature of manganese slurry body is not less than 75 DEG C In, and stir.
Preferably, the weight ratio of manganese slag and burnt slag powders is 10-20:1;Further, slag powders are calcined Temperature is 350-450 DEG C, and the time of calcining is 1-2h, and the particle size of slag powders is 200-300 mesh.
Basic modifier is added in the first mixture, after stirring evenly, the second mixture can be obtained.In detail, exist When basic modifier is made an addition in the first mixture, the temperature of the first mixture may remain in 50-60 DEG C;Preferably, The weight of basic modifier is the 10-12.5% of manganese slag weight.Basic modifier in the present invention can be CaO or MgO.
After above-mentioned second mixture is dried, then cement slurry is added, calcined, you can obtain the first calcined material.In detail Carefully, the second mixture is stood, treats its sedimentation, then the water on upper strata is removed, then the mixture of lower floor is dried.Second mixing The temperature of object drying can be 100-120 DEG C.
Further, the weight ratio of manganese slag and cement slurry can be 25-50:1, and in the second mixture after the drying The temperature that addition cement slurry is calcined can be 500-600 DEG C, and the time of calcining can be 2-3h.
Water-reducing agent and clinker are added in the first calcined material, after mixing, is calcined again.In detail, the cement of addition The weight ratio of clinker and cement slurry is 5-10:1;And first the temperature calcined of calcined material addition clinker can be 400-500 DEG C, the time of calcining can be 1-2h.
It should be noted that above-mentioned water-reducing agent can be at least one in carboxylate, lignosulfonates and sodium hydroxide Kind.
Prepared by the method for concrete and by its system as retarder using electrolytic manganese residues to the present invention with reference to embodiments Standby concrete is described in further detail.
Embodiment 1
Manganese slag is made an addition in water at a temperature of 90 °C, and the temperature of mixture of the holding containing manganese slag is 90 DEG C, turned Manganese slurry body is made to stir 5h under conditions of 1000r/min in speed.
Burnt slag powders (200 mesh) are added in manganese slurry body, is uniformly mixed, obtains the first mixture.Manganese slag with The weight ratio of slag powders is 10:1, and when slag powders are made an addition in manganese slurry body, the temperature of manganese slurry body is 75 DEG C.Slag powders Method for calcinating be:It is 350 DEG C in temperature, calcines 2h.
When the temperature of the first mixture is 60 DEG C, basic modifier CaO is in the first mixture for addition, is uniformly mixed, Obtain the second mixture.The weight of basic modifier is the 10% of manganese slag weight.
Second mixture is stood, after its sedimentation, the water on upper strata is removed, is as temperature by the sediment called in the following text It is dried under the conditions of 120 DEG C, after to be dried, addition cement slurry is calcined, the temperature of calcining in drying object after mixing It is 500 DEG C, calcines 3h, you can obtain the first calcined material.The weight ratio of cement slurry and manganese slag is 1:25.
Water-reducing agent and clinker are added in the first calcined material, is uniformly mixed, under the conditions of temperature is 400 DEG C, calcining 2h, you can obtain concrete.Water-reducing agent is carboxylate, and the weight ratio of clinker and cement slurry is 5:1, the weight of water-reducing agent It can be the 2% of clinker weight.
Embodiment 2
Manganese slag (250 mesh) is made an addition in the water that temperature is 120 DEG C, and the temperature of mixture of the holding containing manganese slag is 120 DEG C, 3h is stirred under conditions of rotating speed is 500r/min, manganese slurry body is made.
Burnt slag powders (300 mesh) are added in manganese slurry body, is uniformly mixed, obtains the first mixture.Manganese slag with The weight ratio of slag powders is 20:1, and when slag powders are made an addition in manganese slurry body, the temperature of manganese slurry body is 80 DEG C.Slag powders Method for calcinating be:It is 450 DEG C in temperature, calcines 1h.
When the temperature of the first mixture is 50 DEG C, basic modifier MgO is in the first mixture for addition, is uniformly mixed, Obtain the second mixture.The weight of basic modifier is the 12.5% of manganese slag weight.
Second mixture is stood, after its sedimentation, the water on upper strata is removed, is as temperature by the sediment called in the following text It is dried under the conditions of 100 DEG C, after to be dried, addition cement slurry is calcined, the temperature of calcining in drying object after mixing It is 600 DEG C, calcines 2h, you can obtain the first calcined material.The weight ratio of cement slurry and manganese slag is 1:50.
Water-reducing agent and clinker are added in the first calcined material, is uniformly mixed, under the conditions of temperature is 500 DEG C, calcining 1h, you can obtain concrete.Water-reducing agent is the mixture of carboxylate, lignosulfonates and sodium hydroxide, clinker and water The weight ratio of mud raw material is 10:1, the weight of water-reducing agent can be the 2.5% of clinker weight.
Embodiment 3
Manganese slag (300 mesh) is made an addition in the water that temperature is 100 DEG C, and the temperature of mixture of the holding containing manganese slag is 105 DEG C, 4h is stirred under conditions of rotating speed is 800r/min, manganese slurry body is made.
Burnt slag powders (250 mesh) are added in manganese slurry body, is uniformly mixed, obtains the first mixture.Manganese slag with The weight ratio of slag powders is 15:1, and when slag powders are made an addition in manganese slurry body, the temperature of manganese slurry body is 78 DEG C.Slag powders Method for calcinating be:It is 400 DEG C in temperature, calcines 1.5h.
When the temperature of the first mixture is 55 DEG C, basic modifier CaO is in the first mixture for addition, is uniformly mixed, Obtain the second mixture.The weight of basic modifier is the 11% of manganese slag weight.
Second mixture is stood, after its sedimentation, the water on upper strata is removed, is as temperature by the sediment called in the following text It is dried under the conditions of 110 DEG C, after to be dried, addition cement slurry is calcined, the temperature of calcining in drying object after mixing It is 550 DEG C, calcines 2.5h, you can obtain the first calcined material.The weight ratio of cement slurry and manganese slag is 1:35.
Water-reducing agent and clinker are added in the first calcined material, is uniformly mixed, under the conditions of temperature is 440 DEG C, calcining 1.5h, you can obtain concrete.Water-reducing agent is sodium hydroxide, and the weight ratio of clinker and cement slurry is 7:1, water-reducing agent Weight can be the 1.8% of clinker weight.
Embodiment 4
Manganese slag (200 mesh) is made an addition in the water that temperature is 95 DEG C, and the temperature of mixture of the holding containing manganese slag is 110 DEG C, 4.5h is stirred under conditions of rotating speed is 600r/min, manganese slurry body is made.
Burnt slag powders (200 mesh) are added in manganese slurry body, is uniformly mixed, obtains the first mixture.Manganese slag with The weight ratio of slag powders is 17:1, and when slag powders are made an addition in manganese slurry body, the temperature of manganese slurry body is 85 DEG C.Slag powders Method for calcinating be:It is 370 DEG C in temperature, calcines 2h.
When the temperature of the first mixture is 53 DEG C, basic modifier CaO is in the first mixture for addition, is uniformly mixed, Obtain the second mixture.The weight of basic modifier is the 10.5% of manganese slag weight.
Second mixture is stood, after its sedimentation, the water on upper strata is removed, is as temperature by the sediment called in the following text It is dried under the conditions of 105 DEG C, after to be dried, addition cement slurry is calcined, the temperature of calcining in drying object after mixing It is 520 DEG C, calcines 2.4h, you can obtain the first calcined material.The weight ratio of cement slurry and manganese slag is 1:45.
Water-reducing agent and clinker are added in the first calcined material, is uniformly mixed, under the conditions of temperature is 470 DEG C, calcining 1.6h, you can obtain concrete.Water-reducing agent is the mixture of lignosulfonates and sodium hydroxide, clinker and cement slurry Weight ratio be 9:1, the weight of water-reducing agent can be the 3% of clinker weight.
Comparative example 1
Comparative example 1 is similar with the method for preparing concrete of embodiment 1, the difference lies in, in comparative example 1 not by manganese Manganese slurry body is made in slag, but slag powders, basic modifier, cement slurry are added in manganese ground-slag end and is calcined, Ran Hou Addition clinker is calcined again, and other parameters, method are carried out with reference to embodiment 1, and details are not described herein.
Comparative example 2
Comparative example 2 is similar with the preparation method of embodiment 1, and the difference lies in prepare the side of manganese slurry body in comparative example 2 Method is to make an addition to manganese slag in the water that temperature is 24 DEG C, and after stirring, other parametric techniques are carried out with reference to embodiment 1, This is repeated no more.
Comparative example 3
Comparative example 3 is similar with the preparation method of embodiment 1, and the difference lies in directly in the second mixture in comparative example 3 Middle addition clinker is once calcined, you can.The parameters such as other raw material usages reference embodiment 1, herein no longer It repeats.
Concrete test block is made with the molding method of machine pressure system in the embodiment 1-4 and comparative example 1-3 concrete prepared, Carry out compression strength, flexural strength and NH3The inspection of burst size.Detection method respectively refers to GB/T 50081-2001《It is common mixed Solidifying soil mechanics method for testing performance standard》And GB/T18588-2001《The limitation of the ammonia discharged in concrete admixture》Into Row.It the results are shown in Table 1.
The NH of 1 each group concrete of table3Burst size (%) and the compression strength (MPa) of concrete and tensile strength (MPa)
As shown in Table 1, the NH of concrete prepared by preparation method of the invention3Burst size is substantially reduced;There is 1 He of comparative example 2 compared with embodiment 1-4 it is found that prepare manganese slurry body with the higher water of temperature in the present invention, can significantly reduce made of NH3The burst size of concrete.
The resistance to compression of concrete prepared by the preparation method of the present invention is slight and flexural strength is above comparative example 1-3;By right Ratio 1 and 2 compared with embodiment 1-4 it is found that after preparing manganese slurry body with the higher water of temperature in the present invention, the coagulation prepared The compression strength and flexural strength of soil are more preferably;Compared by comparative example 3 and embodiment 1-4 it is found that dividing in the preparation method of the present invention Not Tian Jia cement slurry and clinker calcined, the compression strength and flexural strength of concrete can be significantly improved.
It is equal that with the molding method of machine pressure system length is made in concrete prepared by embodiment 1-4 and comparative example 1-3 For the concrete test block of 10cm, each concrete test block is placed in the baking oven that humidity is 40%, temperature is 30 DEG C, toasted respectively For 24 hours, 48h and 72h, and after each period toasts, measure the area of each concrete test block surface scum and each test block The ratio of total surface area, the results are shown in Table 2.
There is the area ratio (%) of scum phenomenon in 2 each test block different tests period of table
As shown in Table 2, preparation method of the invention preparation can reduce the scum phenomenon of concrete, i.e., of the invention The concrete for preparing of method there is more preferably wearability, frost resistance and impermeability etc..By embodiment 1-4's and comparative example 1-2 Comparing result can improve concrete it is found that prepare the method for manganese slurry body in the preparation method of the present invention to a certain extent Scum phenomenon;By embodiment 1-4 and the comparing result of comparative example 3 it is found that the present invention preparation method in method for calcinating, energy The scum phenomenon of concrete is enough greatly lowered.
In conclusion the embodiment of the present invention prepares the method for concrete and by its preparation using electrolytic manganese residues as retarder The advantageous effect of concrete be:
Manganese slurry body is first prepared in the method for preparing concrete as retarder using electrolytic manganese residues of the present invention, in manganese slag The part ammonia contained can be dissolved in the water of slurry, and then reduces the residual quantity of ammonia in manganese slag;The present invention is in the second mixture Middle first addition cement slurry is calcined, and on the one hand can be increased the volatilization of remaining ammonia in manganese slag, on the other hand can forged Cement slurry is made to be changed into clinker during burning, and compression strength and flexural strength for improving mixture entirety etc., It also is able to improve the binding ability of salts substances in mixture so that salts substances are not easy to be precipitated;To once being forged excessively Water-reducing agent is added in the mixture of burning and clinker is calcined again, in addition to can further promote remaining ammonia volatilization, is subtracted The content of ammonia in few concrete, additionally it is possible to it further reduces the free water in concrete and combines the content of water, and into The compression strength and flexural strength of concrete are improved to one step, improves the binding ability of salts substances in concrete, reduces salt The eduction rate of substance.
The total content of ammonia is few in the concrete of the present invention, and can reduce the generation of scum phenomenon;And the concrete has There are higher compression strength and flexural strength etc..
Embodiments described above is part of the embodiment of the present invention, instead of all the embodiments.The reality of the present invention The detailed description for applying example is not intended to limit the range of claimed invention, but is merely representative of the selected implementation of the present invention Example.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without creative efforts Every other embodiment, shall fall within the protection scope of the present invention.

Claims (10)

  1. A kind of 1. method for preparing concrete as retarder using electrolytic manganese residues, which is characterized in that including manganese slag is made manganese slag Slurry adds burnt slag powders in manganese slurry body, obtains the first mixture;
    Basic modifier is added in first mixture, obtains the second mixture;
    Second mixture is dried, then adds cement slurry, is calcined, obtains the first calcined material;
    Water-reducing agent and clinker are added in first calcined material, is calcined.
  2. 2. the method according to claim 1 for preparing concrete as retarder using electrolytic manganese residues, which is characterized in that described The preparation method of manganese slurry body includes:Manganese slag is made an addition in water and is stirred, the rotating speed of the stirring is 500-1000r/ Min, and the temperature of the water is 90-120 DEG C, and keep during the stirring is carried out the mixed of the manganese slag and the water The temperature for closing object is 90-120 DEG C.
  3. 3. the method according to claim 1 for preparing concrete as retarder using electrolytic manganese residues, which is characterized in that described The weight ratio of manganese slag and the slag powders is 10-20:1.
  4. 4. the method according to claim 1 for preparing concrete as retarder using electrolytic manganese residues, which is characterized in that described The weight of basic modifier is the 10%-12.5% of the manganese slag weight.
  5. 5. the method according to claim 1 for preparing concrete as retarder using electrolytic manganese residues, which is characterized in that described The weight ratio of manganese slag and the cement slurry is 25-50:1.
  6. 6. the method according to claim 1 for preparing concrete as retarder using electrolytic manganese residues, which is characterized in that described The weight ratio of cement slurry and the clinker is 1:5-10.
  7. 7. the method according to claim 1 for preparing concrete as retarder using electrolytic manganese residues, which is characterized in that in institute It is 500-600 DEG C to state and the temperature that the cement slurry is calcined is added in the second mixture.
  8. 8. the method according to claim 1 for preparing concrete as retarder using electrolytic manganese residues, which is characterized in that in institute It is 400-500 DEG C to state and the temperature that the water-reducing agent and the clinker are calcined is added in the first calcined material.
  9. 9. the method according to claim 1 for preparing concrete as retarder using electrolytic manganese residues, which is characterized in that described Water-reducing agent includes at least one of carboxylate, lignosulfonates and sodium hydroxide.
  10. 10. a kind of concrete, which is characterized in that it is to make slow setting using electrolytic manganese residues by claim 1-9 any one of them Prepared by the method that agent prepares concrete.
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CN103553378A (en) * 2013-11-12 2014-02-05 宁夏天元锰业有限公司 Method for preparing cement by utilizing electrolytic manganese residue as retarder
CN104030583A (en) * 2014-06-12 2014-09-10 贵州省工业固体废弃物综合利用(建材)工程技术研究中心 Method for preparing cement admixture by use of electrolytic manganese residue and product and application
CN104529196A (en) * 2014-12-10 2015-04-22 北京科技大学 Method for extracting ammonium and modifying electrolytic manganese residue
CN107445532A (en) * 2017-08-17 2017-12-08 长沙中硅水泥技术开发有限公司 Over cure electrolytic manganese residues concrete and preparation method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111592260A (en) * 2020-05-08 2020-08-28 北京科技大学 Additive for removing ammonia nitrogen in electrolytic manganese slag and removing method thereof

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