CN116102297A - Method for preparing low-carbon concrete by using gel material - Google Patents
Method for preparing low-carbon concrete by using gel material Download PDFInfo
- Publication number
- CN116102297A CN116102297A CN202211687918.9A CN202211687918A CN116102297A CN 116102297 A CN116102297 A CN 116102297A CN 202211687918 A CN202211687918 A CN 202211687918A CN 116102297 A CN116102297 A CN 116102297A
- Authority
- CN
- China
- Prior art keywords
- gel material
- concrete
- stirring
- preparing low
- powder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/003—Methods for mixing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/0007—Pretreatment of the ingredients, e.g. by heating, sorting, grading, drying, disintegrating; Preventing generation of dust
-
- 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
- C04B7/14—Cements containing slag
- C04B7/147—Metallurgical slag
-
- 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
-
- 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
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00017—Aspects relating to the protection of the environment
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Dispersion Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
The invention discloses a method for preparing low-carbon concrete by using a gel material, which comprises the following steps: step 1: soaking metallurgical slag, fly ash and coal gangue in water and then drying; step 2: crushing metallurgical slag, fly ash and coal gangue, and grinding into powder; step 3: mixing and stirring the powder ground in the step 2 with kaolin powder, a water reducing agent, cement and a curing agent; step 4: introducing the stirring material obtained in the step 3 into a steam curing box for curing to obtain a gel material; step 5: mixing and stirring the coarse aggregate, the fine aggregate and the gel material obtained in the step 4, adding water and a water reducing agent, and stirring to obtain the finished concrete.
Description
Technical Field
The invention relates to the field of concrete, in particular to a method for preparing low-carbon concrete by using a gel material.
Background
Concrete (Concrete), abbreviated as "Concrete (t bang)": refers to the collective term for engineering composite materials in which aggregate is consolidated into a whole by a cementitious material. The term concrete generally refers to cement as a cementing material, sand and stone as aggregate; the cement concrete, also called ordinary concrete, obtained by mixing the cement concrete with water (which can contain additives and admixtures) according to a certain proportion is widely applied to civil engineering. In the existing concrete production process, the gel material mainly adopts cement, compared with natural sand and stones, the carbon emission of the cement is maximum in the production process, and the carbon emission can be reduced by reducing the using amount of the cement.
Disclosure of Invention
The invention aims to: the invention aims to solve the technical problem of providing a method for preparing low-carbon concrete by using a gel material aiming at the defects of the prior art.
In order to solve the technical problems, the invention discloses a method for preparing low-carbon concrete by using a gel material, which comprises the following steps:
step 1: soaking metallurgical slag, fly ash and coal gangue in water and then drying;
step 2: crushing metallurgical slag, fly ash and coal gangue, and grinding into powder;
step 3: mixing and stirring the powder ground in the step 2 with kaolin powder, a water reducing agent, cement and a curing agent;
step 4: introducing the stirring material obtained in the step 3 into a steam curing box for curing to obtain a gel material;
step 5: mixing and stirring the coarse aggregate, the fine aggregate and the gel material obtained in the step 4, adding water and a water reducing agent, and stirring to obtain the finished concrete.
In the invention, the proportion of the powder to the cement in the step 3 is 8:2.
in the invention, the water reducer in the step 3 is an amino high-efficiency water reducer.
In the invention, the steam curing temperature in the step 4 is 30 ℃, the humidity is 70%, and the time is 3 hours.
In the invention, the mass parts of the components in the step 5 are as follows: 800-1000 parts of coarse aggregate, 500-600 parts of fine aggregate and 250-350 parts of gel material.
In the invention, the mass ratio of the metallurgical slag, the fly ash and the coal gangue in the step 2 is 4:2:4.
the beneficial effects are that: the invention provides a method for preparing low-carbon concrete by using a gel material, which greatly reduces the consumption of cement, adopts materials such as metallurgical slag, fly ash, coal gangue and the like to prepare the gel material, and reduces carbon emission.
Detailed Description
Example 1:
the embodiment provides a method for preparing low-carbon concrete by using a gel material, which comprises the following steps:
step 1: soaking metallurgical slag, fly ash and coal gangue in water and then drying;
step 2: crushing metallurgical slag, fly ash and coal gangue, and grinding into powder;
step 3: mixing and stirring the powder ground in the step 2 with kaolin powder, a water reducing agent, cement and a curing agent;
step 4: introducing the stirring material obtained in the step 3 into a steam curing box for curing to obtain a gel material;
step 5: mixing and stirring the coarse aggregate, the fine aggregate and the gel material obtained in the step 4, adding water and a water reducing agent, and stirring to obtain the finished concrete.
In the step 3, the proportion of the powder to the cement is 8:2.
and 3, the water reducer is an amino high-efficiency water reducer.
And in the step 4, the steam curing temperature is 30 ℃, the humidity is 70%, and the time is 3 hours.
The mass portions of the components in the step 5 are as follows: 800-1000 parts of coarse aggregate, 500-600 parts of fine aggregate and 250-350 parts of gel material.
In the step 2, the mass ratio of the metallurgical slag, the fly ash and the coal gangue is 4:2:4.
the mass parts of the components of the embodiment are specifically 800 parts of coarse aggregate, 500 parts of fine aggregate and 250 parts of gel material.
Example 2:
the mass parts of the components of the embodiment are specifically 800 parts of coarse aggregate, 500 parts of fine aggregate and 300 parts of gel material.
Example 3:
the mass parts of the components of the embodiment are specifically 800 parts of coarse aggregate, 500 parts of fine aggregate and 350 parts of gel material.
Performance test:
the concrete of example 1, example 2 and example 3 was tested according to the basic performance test method of the construction mortar, specific test items and test data are shown in table 1 below,
| consistency/mm | Water retention/% | Compressive Strength/MPa | Tensile bond strength/MPa | |
| Example 1 | 75 | 87 | 17.8 | 0.24 |
| Example 2 | 71 | 84 | 15.6 | 0.23 |
| Example 3 | 83 | 91 | 16.9 | 0.27 |
TABLE 1
According to the test data, the performance of the concrete prepared by the method for preparing the low-carbon concrete by using the gel material meets the conditions of commercial concrete, the performance meets the standards, in the production process, the cement usage amount is reduced by 80%, and the metallurgical slag, the fly ash and the coal gangue are adopted as main raw materials, so that the carbon emission is reduced, and the requirement of sustainable development of green energy is met. The use amount of industrial waste is enlarged, the use amount of cement clinker is reduced, and the cost is controllable.
The invention provides a method for preparing low-carbon concrete by using gel materials, and a method for realizing the technical scheme, wherein the method and the way are a plurality of methods, the method is only a preferred embodiment of the invention, and it should be pointed out that a plurality of improvements and modifications can be made by one of ordinary skill in the art without departing from the principle of the invention, and the improvements and the modifications are also considered as the protection scope of the invention. The components not explicitly described in this embodiment can be implemented by using the prior art.
Claims (6)
1. A method for preparing low-carbon concrete by using gel materials, which is characterized by comprising the following steps:
step 1: soaking metallurgical slag, fly ash and coal gangue in water and then drying;
step 2: crushing metallurgical slag, fly ash and coal gangue, and grinding into powder;
step 3: mixing and stirring the powder ground in the step 2 with kaolin powder, a water reducing agent, cement and a curing agent;
step 4: introducing the stirring material obtained in the step 3 into a steam curing box for curing to obtain a gel material;
step 5: mixing and stirring the coarse aggregate, the fine aggregate and the gel material obtained in the step 4, adding water and a water reducing agent, and stirring to obtain the finished concrete.
2. The method for preparing low-carbon concrete by using the gel material according to claim 1, wherein the ratio of powder to cement in the step 3 is 8:2.
3. the method for preparing low-carbon concrete by using the gel material according to claim 1, wherein the water reducing agent in the step 3 is an amino high-efficiency water reducing agent.
4. The method for preparing low-carbon concrete by using the gel material according to claim 1, wherein the steam curing temperature is 30 degrees, the humidity is 70% and the time is 3 hours in the step 4.
5. The method for preparing low-carbon concrete by using the gel material according to claim 1, wherein the mass parts of the components in the step 5 are as follows: 800-1000 parts of coarse aggregate, 500-600 parts of fine aggregate and 250-350 parts of gel material.
6. The method for preparing low-carbon concrete by using the gel material according to claim 1, wherein the mass ratio of the metallurgical slag, the fly ash and the coal gangue in the step 2 is 4:2:4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211687918.9A CN116102297A (en) | 2022-12-27 | 2022-12-27 | Method for preparing low-carbon concrete by using gel material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211687918.9A CN116102297A (en) | 2022-12-27 | 2022-12-27 | Method for preparing low-carbon concrete by using gel material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116102297A true CN116102297A (en) | 2023-05-12 |
Family
ID=86257419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211687918.9A Pending CN116102297A (en) | 2022-12-27 | 2022-12-27 | Method for preparing low-carbon concrete by using gel material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116102297A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104496333A (en) * | 2014-12-29 | 2015-04-08 | 上海浦东路桥建设股份有限公司 | Flyash-based polymer concrete material and preparation method thereof |
| KR20160004711A (en) * | 2014-07-04 | 2016-01-13 | 한국철도기술연구원 | Low carbon eco-friendly concrete composition having multi-components, and mixing method for the same |
| CN109437811A (en) * | 2018-11-20 | 2019-03-08 | 安徽理工大学 | A method of enhancing alkali-activated carbonatite concrete resisting carbonization |
| CN114455891A (en) * | 2022-01-26 | 2022-05-10 | 江苏中砼新材料科技有限公司 | Low-carbon concrete and preparation process thereof |
-
2022
- 2022-12-27 CN CN202211687918.9A patent/CN116102297A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160004711A (en) * | 2014-07-04 | 2016-01-13 | 한국철도기술연구원 | Low carbon eco-friendly concrete composition having multi-components, and mixing method for the same |
| CN104496333A (en) * | 2014-12-29 | 2015-04-08 | 上海浦东路桥建设股份有限公司 | Flyash-based polymer concrete material and preparation method thereof |
| CN109437811A (en) * | 2018-11-20 | 2019-03-08 | 安徽理工大学 | A method of enhancing alkali-activated carbonatite concrete resisting carbonization |
| CN114455891A (en) * | 2022-01-26 | 2022-05-10 | 江苏中砼新材料科技有限公司 | Low-carbon concrete and preparation process thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100990470B1 (en) | Process for preparing compounded cement with reduced carbon dioxide emissions | |
| CN111233364B (en) | Composite mineral admixture, preparation method thereof and artificial sand concrete material containing composite mineral admixture | |
| CN101182141B (en) | Method for preparing high-strength structure material by using iron tailings | |
| CN111574170B (en) | Underground goaf filling material and preparation method thereof | |
| CN105330180A (en) | Early-strength low-heat Portland cement and preparation method thereof | |
| CN111470823A (en) | Composite cementing material system of ultra-high performance concrete and application method thereof | |
| CN105669056A (en) | Low-carbon cement clinker and preparation method and application thereof | |
| CN104891884A (en) | C35 low-gel-material self-compacting concrete and preparation method thereof | |
| CN110963764A (en) | Waterproof concrete and preparation method thereof | |
| KR20220104191A (en) | Novel process for high-performance cement | |
| WO2024120065A1 (en) | Mine tailing-derived self-forming material and use thereof | |
| CN112341116A (en) | A kind of desulfurized gypsum supersulfur cement concrete and preparation method thereof | |
| CN109437796A (en) | Discarded regenerative micro powder concrete preparation and application | |
| CN115626810A (en) | Phosphogypsum stabilizing material and application thereof | |
| CN114735955A (en) | Desulfurized gypsum based super-sulfate cement and preparation method thereof | |
| CN114292081A (en) | Cement-free low-carbon concrete and preparation method thereof | |
| CN114230208A (en) | High-strength cement and preparation method thereof | |
| CN112374787A (en) | Basalt fiber anti-cracking waterproof agent for concrete and preparation method thereof | |
| CN116102297A (en) | Method for preparing low-carbon concrete by using gel material | |
| CN112250392B (en) | Artificial macadam for road construction and preparation method thereof | |
| CN116903334A (en) | Low-carbon low-shrinkage Cheng Shuini-based composite material and preparation method thereof | |
| CN103466990A (en) | Concrete anti-cracking waterproof agent for constructing well bore based on freezing method | |
| CN114605119A (en) | Anti-freezing and anti-cracking concrete | |
| CN108249862B (en) | A kind of high-hardness building material and preparation method thereof | |
| CN108017334A (en) | A kind of artificial reef material based on granite ballast powder and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |