CN113121137A - Method for exciting activity of cement mixed material by using sulfate - Google Patents
Method for exciting activity of cement mixed material by using sulfate Download PDFInfo
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- CN113121137A CN113121137A CN202110552393.7A CN202110552393A CN113121137A CN 113121137 A CN113121137 A CN 113121137A CN 202110552393 A CN202110552393 A CN 202110552393A CN 113121137 A CN113121137 A CN 113121137A
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- cement
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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
- C04B12/00—Cements not provided for in groups C04B7/00 - C04B11/00
- C04B12/005—Geopolymer cements, e.g. reaction products of aluminosilicates with alkali metal hydroxides or silicates
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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
- C04B7/24—Cements from oil shales, residues or waste other than slag
- C04B7/26—Cements from oil shales, residues or waste other than slag from raw materials containing flue dust, i.e. fly ash
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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
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/38—Preparing or treating the raw materials individually or as batches, e.g. mixing with fuel
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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
Abstract
The invention discloses a method for exciting the activity of a cement mixed material by using sulfate, which comprises the following steps: selecting raw materials: the raw materials comprise 35-45% of mineral powder, 30-45% of fly ash, 1-5% of lime, 1-5% of high molecular metal salt, 5-30% of a compound activator and 5-10% of an additive, wherein the compound activator comprises an alkaline activator, a sulfate activator and an aluminate activator, the sulfate activator is various natural gypsums, the additive comprises lithium slag, bauxite and quartz sand, and the additive comprises the following components in parts by weight: 3-5 parts of lithium slag, 3-4 parts of bauxite and 2-3 parts of quartz sand; the lithium slag, the bauxite and the quartz sand are used as additives of the cement mixing material, and a large amount of active oxidation components in the lithium slag, the bauxite and the quartz sand are used for accelerating the solidification of the cement, so that the initial setting time and the final setting time of the cement are effectively shortened, and the cement mixing material is convenient for a user to use.
Description
Technical Field
The invention relates to the technical field of building materials, in particular to a method for exciting the activity of a cement mixed material by using sulfate.
Background
For example, the patent with application number 201510071738.1 discloses an ultra-sulfur cement, the dosage of the reinforcing agent of the invention accounts for 0.5-5 wt% of the cementing material in the concrete, namely, the ultra-sulfur cement, the compressive strength of the cement concrete is greatly improved, and the compressive strength of the concrete prepared by the ultra-sulfur cement with polyaluminium chloride can be improved by 20-50%.
However, the ultra-sulfur cement has many problems, for example, it simply uses sulfate as an activator to stimulate the activity of the cement admixture, and the addition amount of the sulfate activator in the cement is large, so that the initial setting and final setting time of the produced cement is long, often ten hours or even one day, and it takes a long time to perform care and maintenance after use, which seriously affects the progress of the project.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides a method for exciting the activity of a cement mixed material by using sulfate.
The invention provides a method for exciting the activity of a cement mixed material by using sulfate, which comprises the following steps:
step 1: selecting raw materials: the raw materials comprise 35-45% of mineral powder, 30-45% of fly ash, 1-5% of lime, 1-5% of high molecular metal salt, 5-30% of a compound activator and 5-10% of an additive, wherein the compound activator comprises an alkaline activator, a sulfate activator and an aluminate activator, the sulfate activator is various natural gypsums, the additive comprises lithium slag, bauxite and quartz sand, and the additive comprises the following components in parts by weight: 3-5 parts of lithium slag, 3-4 parts of bauxite and 2-3 parts of quartz sand;
step 2: grinding the main materials: weighing mineral powder, fly ash, lime and macromolecular metal salt according to the formula, introducing the weighed ingredients into a grinding machine for grinding, mixing and grinding into fine powder, and grinding until the specific surface area is 410-450m2Per kg, forming mixed main material powder;
and step 3: material mixing and grinding: weighing the composite exciting agent and the additive with corresponding specific gravity, grinding the composite exciting agent and the additive into fine powder, wherein the specific surface area of the fine powder is 430-2Per kg, obtaining ingredient powder;
and 4, step 4: preparing a finished product: uniformly mixing the obtained mixed main material powder and the auxiliary material powder, and then performing high-pressure high-temperature treatment to obtain cement mixed material powder;
and 5: excitation activity: adding a proper amount of water into the cement mixed material powder, wherein the lime powder is dissolved in the water to generate OH-And Ca2+Ion:
Ca（0H）2=2 OH-+Ca2+
OH-breaking Si-0 and Al-0 bonds in active silicon oxide and aluminum oxide of the fly ash, and Ca under the action of sulfate2+Reacting with the broken Si-0 and Al-0 bonds to generate a cementing material with hydraulicity, thereby activating the activity of the cement mixed material and monitoring the primary setting and final setting time of the cement mixed material.
Preferably, in step 1, the alkali-activator comprises one or a mixture of two or more of potassium hydroxide, sodium hydroxide, calcium hydroxide, water glass and portland cement.
Preferably, in step 1, the sulfate excitant is one of phosphogypsum, fluorgypsum, yellow gypsum, red gypsum, desulfurized gypsum, natural dihydrate gypsum or anhydrite.
Preferably, the aluminate excitant is one of bauxite, high alumina cement and sodium aluminate.
Preferably, in step 1, the bauxite is powder, and the quartz sand is granular.
Preferably, in step 1, the polymer metal salt is one or a mixture of any two or more of polyaluminium chloride, polyaluminium phosphate, polyaluminium ferric chloride, or polyaluminium ferric chloride.
Preferably, in the step 2 and the step 3, the grinding is repeated three times by using a grinding device, and the grinding temperature is maintained at about twenty degrees during the grinding.
Preferably, in the step 4, the high-pressure high-temperature treatment is to calcine for fifteen seconds under the condition of 4kPa and in a high-temperature environment of 350-450 ℃.
Preferably, in step 5, Ca (0H)2Under the combined action of the active SiO and the sulfate excitant on the surface of the fly ash particles2Produce hydration reaction to generate I type CSH gelActive Al2O3Hydration reaction is generated to generate ettringite, the generated CSH gel and the ettringite are deposited on the surfaces of the fly ash and the mineral powder particles to form a coating layer, and the coating layer can prevent the fly ash and the mineral powder particles from absorbing calcium ions, so that the hydration speed is reduced.
Preferably, in step 5, after the hydration speed is reduced, Ca2+ absorbs energy to diffuse and permeate, the inner layer molecules absorb energy to store energy, and the CSH and ettringite crystals on the surface layer grow, due to the blocking effect of the coating layer, a relatively flat slow period exists in the reaction speed, the coating layer is broken under the influence of energy storage and other factors, the fly ash continues to generate CSH gel, and the coating layer continues to be generated.
The invention has the beneficial effects that: the lithium slag, the bauxite and the quartz sand are used as additives of the cement mixing material, and a large amount of active oxidation components in the lithium slag, the bauxite and the quartz sand are used for accelerating the solidification of the cement, so that the initial setting time and the final setting time of the cement are effectively shortened, and the cement mixing material is convenient for a user to use.
Drawings
Fig. 1 is a flow chart of the present invention.
Detailed Description
The present invention will be further illustrated with reference to the following specific examples.
Referring to FIG. 1, the first embodiment
The embodiment provides a method for exciting the activity of a cement mixed material by using sulfate, which comprises the following steps:
step 1: selecting raw materials: the raw materials comprise 40% of mineral powder, 30% of fly ash, 5% of lime, 3% of high-molecular metal salt, 12% of composite activator and 10% of additive, the high-molecular metal salt is one or a mixture of more than two of polyaluminium chloride, polyaluminium phosphate, polyaluminium ferric chloride or polyaluminium ferric chloride, the composite activator consists of an alkaline activator, a sulfate activator and an aluminate activator, the alkaline activator comprises one or a mixture of more than two of potassium hydroxide, sodium hydroxide, calcium hydroxide, water glass and portland cement, the aluminate activator is one of bauxite, high-alumina cement and sodium aluminate, the sulfate activator is various natural gypsum, the sulfate activator is one of phosphogypsum, fluorgypsum, yellow gypsum, red gypsum, desulfurized gypsum, natural dihydrate gypsum or anhydrite, and the additive comprises lithium slag, bauxite and quartz sand, the additive comprises the following components in percentage by weight: 5 parts of lithium slag, 3 parts of bauxite and 2 parts of quartz sand, wherein the bauxite is powder, and the quartz sand is particles;
step 2: grinding the main materials: weighing mineral powder, fly ash, lime and macromolecular metal salt according to the formula, introducing the weighed ingredients into a grinding machine for grinding, mixing and grinding into fine powder, and grinding until the specific surface area is 410-450m2Forming mixed main material powder, repeatedly grinding for three times by using grinding equipment, and maintaining the grinding temperature to be about twenty ℃ during grinding;
and step 3: material mixing and grinding: weighing the composite exciting agent and the additive with corresponding specific gravity, grinding the composite exciting agent and the additive into fine powder, wherein the specific surface area of the fine powder is 430-2The material powder is obtained by kg, grinding is carried out for three times by using grinding equipment, and the grinding temperature is maintained to be about twenty ℃ during grinding;
and 4, step 4: preparing a finished product: uniformly mixing the obtained mixed main material powder and the ingredient powder, performing high-pressure high-temperature treatment, and calcining for fifteen seconds in a high-temperature environment of 350-450 ℃ under the condition of 4kPa to obtain cement mixed material powder;
and 5: excitation activity: adding a proper amount of water into the cement mixed material powder, wherein the lime powder is dissolved in the water to generate OH-And Ca2+Ion:
Ca（0H）2=2 OH-+Ca2+
OH-breaking Si-0 and Al-0 bonds in active silicon oxide and aluminum oxide of the fly ash, and Ca under the action of sulfate2+Reacting with broken Si-0 and Al-0 bonds to form a hydraulic cementing material, thereby activating the activity of the cement mixed material, and monitoring the initial setting and final setting time, Ca (0H), of the cement mixed material2Under the combined action of the active SiO and the sulfate excitant on the surface of the fly ash particles2Produce hydration reactionFormed I type CSH gel, active Al2O3And (2) carrying out hydration reaction to generate ettringite, hydrating to a certain degree, depositing the generated CSH gel and ettringite on the surfaces of the fly ash and the mineral powder particles to form a coating layer, wherein the coating layer can prevent the fly ash and the mineral powder particles from absorbing calcium ions to slow down the hydration speed, in the step 4, after the hydration speed is slowed down, Ca2+ absorbed energy is diffused and permeated, inner layer molecules absorb energy to store energy, and CSH and ettringite crystals on the surface layer grow.
Referring to FIG. 1, example II
The embodiment provides a method for exciting the activity of a cement mixed material by using sulfate, which comprises the following steps: step 1: selecting raw materials: the raw materials comprise 40% of mineral powder, 30% of fly ash, 5% of lime, 3% of high-molecular metal salt, 12% of composite activator and 10% of additive, the high-molecular metal salt is one or a mixture of more than two of polyaluminium chloride, polyaluminium phosphate, polyaluminium ferric chloride or polyaluminium ferric chloride, the composite activator consists of an alkaline activator, a sulfate activator and an aluminate activator, the alkaline activator comprises one or a mixture of more than two of potassium hydroxide, sodium hydroxide, calcium hydroxide, water glass and portland cement, the aluminate activator is one of bauxite, high-alumina cement and sodium aluminate, the sulfate activator is various natural gypsum, the sulfate activator is one of phosphogypsum, fluorgypsum, yellow gypsum, red gypsum, desulfurized gypsum, natural dihydrate gypsum or anhydrite, and the additive comprises lithium slag, bauxite and quartz sand, the additive comprises the following components in percentage by weight: 4 parts of lithium slag, 4 parts of bauxite and 2 parts of quartz sand, wherein the bauxite is powder, and the quartz sand is particles;
step 2: grinding the main materials: weighing mineral powder, fly ash, lime and macromolecular metal salt according to the formula, introducing the weighed ingredients into a grinding machine for grinding, mixing and grinding into fine powder, and grinding until the specific surface area is 410-450m2Kg, forming a mixed base powderRepeatedly grinding for three times by using grinding equipment, and maintaining the grinding temperature to be about twenty ℃ during grinding;
and step 3: material mixing and grinding: weighing the composite exciting agent and the additive with corresponding specific gravity, grinding the composite exciting agent and the additive into fine powder, wherein the specific surface area of the fine powder is 430-2The material powder is obtained by kg, grinding is carried out for three times by using grinding equipment, and the grinding temperature is maintained to be about twenty ℃ during grinding;
and 4, step 4: preparing a finished product: uniformly mixing the obtained mixed main material powder and the ingredient powder, performing high-pressure high-temperature treatment, and calcining for fifteen seconds in a high-temperature environment of 350-450 ℃ under the condition of 4kPa to obtain cement mixed material powder;
and 5: excitation activity: adding a proper amount of water into the cement mixed material powder, wherein the lime powder is dissolved in the water to generate OH-And Ca2+Ion:
Ca（0H）2=2 OH-+Ca2+
OH-breaking Si-0 and Al-0 bonds in active silicon oxide and aluminum oxide of the fly ash, and Ca under the action of sulfate2+Reacting with broken Si-0 and Al-0 bonds to form a hydraulic cementing material, thereby activating the activity of the cement mixed material, and monitoring the initial setting and final setting time, Ca (0H), of the cement mixed material2Under the combined action of the active SiO and the sulfate excitant on the surface of the fly ash particles2Produce hydration reaction to produce I type CSH gel and active Al2O3And (2) carrying out hydration reaction to generate ettringite, hydrating to a certain degree, depositing the generated CSH gel and ettringite on the surfaces of the fly ash and the mineral powder particles to form a coating layer, wherein the coating layer can prevent the fly ash and the mineral powder particles from absorbing calcium ions to slow down the hydration speed, in the step 4, after the hydration speed is slowed down, Ca2+ absorbed energy is diffused and permeated, inner layer molecules absorb energy to store energy, and CSH and ettringite crystals on the surface layer grow.
Referring to FIG. 1, example III
The embodiment provides a method for exciting the activity of a cement mixed material by using sulfate, which comprises the following steps: step 1: selecting raw materials: the raw materials comprise 40% of mineral powder, 30% of fly ash, 5% of lime, 3% of high-molecular metal salt, 12% of composite activator and 10% of additive, the high-molecular metal salt is one or a mixture of more than two of polyaluminium chloride, polyaluminium phosphate, polyaluminium ferric chloride or polyaluminium ferric chloride, the composite activator consists of an alkaline activator, a sulfate activator and an aluminate activator, the alkaline activator comprises one or a mixture of more than two of potassium hydroxide, sodium hydroxide, calcium hydroxide, water glass and portland cement, the aluminate activator is one of bauxite, high-alumina cement and sodium aluminate, the sulfate activator is various natural gypsum, the sulfate activator is one of phosphogypsum, fluorgypsum, yellow gypsum, red gypsum, desulfurized gypsum, natural dihydrate gypsum or anhydrite, and the additive comprises lithium slag, bauxite and quartz sand, the additive comprises the following components in percentage by weight: 3 parts of lithium slag, 4 parts of bauxite and 3 parts of quartz sand, wherein the bauxite is powder, and the quartz sand is particles;
step 2: grinding the main materials: weighing mineral powder, fly ash, lime and macromolecular metal salt according to the formula, introducing the weighed ingredients into a grinding machine for grinding, mixing and grinding into fine powder, and grinding until the specific surface area is 410-450m2Forming mixed main material powder, repeatedly grinding for three times by using grinding equipment, and maintaining the grinding temperature to be about twenty ℃ during grinding;
and step 3: material mixing and grinding: weighing the composite exciting agent and the additive with corresponding specific gravity, grinding the composite exciting agent and the additive into fine powder, wherein the specific surface area of the fine powder is 430-2The material powder is obtained by kg, grinding is carried out for three times by using grinding equipment, and the grinding temperature is maintained to be about twenty ℃ during grinding;
and 4, step 4: preparing a finished product: uniformly mixing the obtained mixed main material powder and the ingredient powder, performing high-pressure high-temperature treatment, and calcining for fifteen seconds in a high-temperature environment of 350-450 ℃ under the condition of 4kPa to obtain cement mixed material powder;
and 5: excitation activity: adding a proper amount of water into the cement mixed material powder, wherein the lime powder is dissolved in the water to generate OH-And Ca2+Ion:
Ca（0H）2=2 OH-+Ca2+
OH-breaking Si-0 and Al-0 bonds in active silicon oxide and aluminum oxide of the fly ash, and Ca under the action of sulfate2+Reacting with broken Si-0 and Al-0 bonds to form a hydraulic cementing material, thereby activating the activity of the cement mixed material, and monitoring the initial setting and final setting time, Ca (0H), of the cement mixed material2Under the combined action of the active SiO and the sulfate excitant on the surface of the fly ash particles2Produce hydration reaction to produce I type CSH gel and active Al2O3And (2) carrying out hydration reaction to generate ettringite, hydrating to a certain degree, depositing the generated CSH gel and ettringite on the surfaces of the fly ash and the mineral powder particles to form a coating layer, wherein the coating layer can prevent the fly ash and the mineral powder particles from absorbing calcium ions to slow down the hydration speed, in the step 4, after the hydration speed is slowed down, Ca2+ absorbed energy is diffused and permeated, inner layer molecules absorb energy to store energy, and CSH and ettringite crystals on the surface layer grow.
Comparing conventional and prepared examples one to three, the following table was prepared for examples one to three:
from the above table, it can be seen that the present invention is a significant improvement and is one of the best modes for carrying out the invention.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. A method for stimulating the activity of a cement mixed material by using sulfate is characterized by comprising the following steps:
step 1: selecting raw materials: the raw materials comprise 35-45% of mineral powder, 30-45% of fly ash, 1-5% of lime, 1-5% of high molecular metal salt, 5-30% of a compound activator and 5-10% of an additive, wherein the compound activator comprises an alkaline activator, a sulfate activator and an aluminate activator, the sulfate activator is various natural gypsums, the additive comprises lithium slag, bauxite and quartz sand, and the additive comprises the following components in parts by weight: 3-5 parts of lithium slag, 3-4 parts of bauxite and 2-3 parts of quartz sand;
step 2: grinding the main materials: weighing mineral powder, fly ash, lime and macromolecular metal salt according to the formula, introducing the weighed ingredients into a grinding machine for grinding, mixing and grinding into fine powder, and grinding until the specific surface area is 410-450m2Per kg, forming mixed main material powder;
and step 3: material mixing and grinding: weighing the composite exciting agent and the additive with corresponding specific gravity, grinding the composite exciting agent and the additive into fine powder, wherein the specific surface area of the fine powder is 430-2Per kg, obtaining ingredient powder;
and 4, step 4: preparing a finished product: uniformly mixing the obtained mixed main material powder and the auxiliary material powder, and then performing high-pressure high-temperature treatment to obtain cement mixed material powder;
and 5: excitation activity: adding a proper amount of water into the cement mixed material powder, wherein the lime powder is dissolved in the water to generate OH-And Ca2+Ion:
Ca（0H）2=2 OH-+Ca2+
OH-breaking Si-0 and Al-0 bonds in active silicon oxide and aluminum oxide of the fly ash, and Ca under the action of sulfate2+Reacting with broken Si-0 and Al-0 bonds to form hydraulic cementing material to excite cement mixtureMaterial activity, and monitoring the initial setting and final setting time of the cement mixed material.
2. The method for activating the cement admixture by using the sulfate according to claim 1, wherein in the step 1, the alkali-activating agent comprises one or a mixture of two or more of potassium hydroxide, sodium hydroxide, calcium hydroxide, water glass and portland cement.
3. The method for activating the cement admixture by using the sulfate according to claim 1, wherein in the step 1, the sulfate activator is one of phosphogypsum, fluorgypsum, yellow gypsum, red gypsum, desulfurized gypsum, natural dihydrate gypsum or anhydrite.
4. The method for activating the cement admixture material using sulfate according to claim 1, wherein in step 1, the aluminate activator is one of bauxite, high alumina cement and sodium aluminate.
5. The method for activating the cement mixing material by using the sulfate as claimed in claim 1, wherein in the step 1, the bauxite is powder, and the quartz sand is granular.
6. The method for activating the activity of the cement mixing material by using the sulfate according to claim 1, wherein in the step 1, the high molecular metal salt is one or a mixture of any two or more of polyaluminium chloride, polyaluminium phosphate, polyaluminium ferric chloride and polyaluminium ferric chloride.
7. The method for activating the cement mixing material by using the sulfate according to claim 1, wherein the grinding is repeated three times by using a grinding device in the steps 2 and 3, and the grinding temperature is maintained at about twenty degrees during the grinding.
8. The method as claimed in claim 1, wherein the step 4 of high-pressure high-temperature treatment is calcining at 4kPa in a high-temperature environment of 350-450 ℃ for fifteen seconds.
9. The method for activating the cement admixture with sulfate according to claim 1, wherein in the step 5, Ca (0H)2Under the combined action of the active SiO and the sulfate excitant on the surface of the fly ash particles2Produce hydration reaction to produce I type CSH gel and active Al2O3Hydration reaction is generated to generate ettringite, the generated CSH gel and the ettringite are deposited on the surfaces of the fly ash and the mineral powder particles to form a coating layer, and the coating layer can prevent the fly ash and the mineral powder particles from absorbing calcium ions, so that the hydration speed is reduced.
10. The method of claim 9, wherein in step 5, after the hydration speed is reduced, Ca2+ absorbs energy to diffuse and penetrate, the inner layer molecules absorb energy to store energy, and the CSH and ettringite crystals on the surface layer grow, due to the inhibition of the coating, a relatively slow period exists in the reaction speed, the coating breaks under the influence of energy storage and other factors, the fly ash continues to generate CSH gel, and the coating continues to be generated.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113735481A (en) * | 2021-08-27 | 2021-12-03 | 河南理工大学 | Composite early strength mineral admixture and preparation method and application thereof |
| CN115477523A (en) * | 2022-09-23 | 2022-12-16 | 徐州和盛矿业科技有限公司 | Mineral inorganic composite material and preparation method thereof |
| CN116002998A (en) * | 2023-01-06 | 2023-04-25 | 阳江市大地环保建材有限公司 | Method for preparing composite mineral admixture from water quenched converter slag |
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| RU2207995C2 (en) * | 2001-06-21 | 2003-07-10 | Юдович Борис Эммануилович | Method of manufacturing low water-demand cement |
| CN101265070A (en) * | 2008-04-17 | 2008-09-17 | 高康 | Sludge solidifying agent and application thereof |
| CN102910852A (en) * | 2012-10-24 | 2013-02-06 | 中建商品混凝土成都有限公司 | Coagulant for super sulfate cement |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113735481A (en) * | 2021-08-27 | 2021-12-03 | 河南理工大学 | Composite early strength mineral admixture and preparation method and application thereof |
| CN115477523A (en) * | 2022-09-23 | 2022-12-16 | 徐州和盛矿业科技有限公司 | Mineral inorganic composite material and preparation method thereof |
| CN115477523B (en) * | 2022-09-23 | 2024-01-05 | 徐州和盛矿业科技有限公司 | Mineral inorganic composite material and preparation method thereof |
| CN116002998A (en) * | 2023-01-06 | 2023-04-25 | 阳江市大地环保建材有限公司 | Method for preparing composite mineral admixture from water quenched converter slag |
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