CN110002825A - A kind of preparation method of coal gangue concrete - Google Patents
A kind of preparation method of coal gangue concrete Download PDFInfo
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- CN110002825A CN110002825A CN201910385429.XA CN201910385429A CN110002825A CN 110002825 A CN110002825 A CN 110002825A CN 201910385429 A CN201910385429 A CN 201910385429A CN 110002825 A CN110002825 A CN 110002825A
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- gangue
- coal
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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
- 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
- C04B28/02—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 containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of preparation methods of coal gangue concrete.The preparation method of the coal gangue concrete is sieved after crushing, respectively obtains coal gangue powder, gangue fine grained, gangue coarse granule the following steps are included: take gangue；The coal gangue powder is subjected to ball milling, obtains gangue micro mist；The gangue fine grained is crushed again, obtains gangue fine aggregate；The gangue coarse granule is crushed again, obtains gangue coarse aggregate；The gangue micro mist, the gangue fine aggregate, the gangue coarse aggregate, water, ordinary portland cement, alkali-activator and water-reducing agent are taken respectively, up to coal gangue concrete after mixing.The present invention provides a kind of preparation method of coal gangue concrete, can largely digest gangue, effectively reduces pollution of the gangue to environment, and can largely save the resources such as cement and sandstone, is conducive to protect environment.
Description
Technical field
The present invention relates to resource reutilization technical fields, specifically, being related to a kind of preparation method of coal gangue concrete.
Background technique
Gangue is largely stacked to form many hillocks as a kind of industrial solid castoff, along with coal mining,
Cause to occupy storage space, heavy metal pollution river generates atmosphere and dust pollution when spontaneous combustion.Solve spoil pollution has through research
Perhaps number of ways, one of them is manufacturing cement by using gangue admixture and prepares concrete.Current manufacturing cement by using gangue admixture
Or concrete is prepared, activator is added generally by high-temperature calcination, or by the method for chemistry, leads to high production cost and two
Secondary pollution.
Summary of the invention
In order to solve existing manufacturing cement by using gangue admixture or prepare the skill that concrete production cost is high, has secondary pollution
Art problem, the present invention provide a kind of preparation method of coal gangue concrete, can largely digest gangue, effectively reduce gangue
Pollution to environment, and the resources such as cement and sandstone can be largely saved, be conducive to protect environment.
The present invention provides a kind of preparation methods of coal gangue concrete, comprising the following steps:
Step 1: taking gangue, sieved after crushing, respectively obtain partial size less than the coal gangue powder of 0.5mm, partial size 0.5 ~
Gangue fine grained, partial size between 10mm are greater than the gangue coarse granule of 10mm；
Step 2: the coal gangue powder is carried out ball milling, the gangue micro mist that partial size is 0.1 ~ 0.2mm is obtained；
Step 3: the gangue fine grained is crushed again and carries out continuous size fraction gradation, gangue fine aggregate is obtained；
Step 4: the gangue coarse granule is broken into the continuous size fraction material that partial size is 10 ~ 60mm, washing, drying again
Afterwards, gangue coarse aggregate is obtained；
Step 5: 20 ~ 30:20 by weight ratio ~ 40:40 ~ 50:10 ~ 15:20 ~ 30:2 ~ 4:1 ~ 2 take the gangue respectively
Micro mist, the gangue fine aggregate, the gangue coarse aggregate, water, ordinary portland cement, alkali-activator and water-reducing agent, first
The gangue micro mist and the alkali-activator are mixed, the gangue fine aggregate, the thick bone of the gangue are then added
Material, the water, the ordinary portland cement, the alkali-activator and the water-reducing agent, up to coal gangue concrete after mixing.
In a kind of preferred embodiment of the preparation method of coal gangue concrete provided by the invention, the alkali-activator is
Industrial sodium hydroxide, purity 95%.
In a kind of preferred embodiment of the preparation method of coal gangue concrete provided by the invention, the water-reducing agent is poly-
High Efficient Diswater.
Compared to the prior art, the preparation method of coal gangue concrete provided by the invention, which has the advantages that, adopts
It is main material production concrete with gangue, can largely digests gangue, effectively reduces pollution of the gangue to environment, and
The resources such as cement and sandstone can be largely saved, are conducive to protect environment, and obtained coal gangue concrete mechanical property is good, resistance to
Long property is good, and production cost is low, will not generate secondary pollution.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's all other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
Embodiment 1
A kind of preparation method of coal gangue concrete, which comprises the following steps:
Step 1: taking gangue, sieved after crushing, respectively obtain partial size less than the coal gangue powder of 0.5mm, partial size 0.5 ~
Gangue fine grained, partial size between 10mm are greater than the gangue coarse granule of 10mm；
Step 2: the coal gangue powder is carried out ball milling, the gangue micro mist that partial size is 0.1 ~ 0.2mm is obtained；
Step 3: the gangue fine grained is crushed again and carries out continuous size fraction gradation, gangue fine aggregate is obtained；
Step 4: the gangue coarse granule is broken into the continuous size fraction material that partial size is 10 ~ 60mm, washing, drying again
Afterwards, gangue coarse aggregate is obtained；
Step 5: 20:20:40:10:20:2:1 by weight ratio takes the gangue micro mist, the thin bone of the gangue respectively
Material, the gangue coarse aggregate, water, ordinary portland cement, alkali-activator and water-reducing agent, first by the gangue micro mist and institute
Alkali-activator mixing is stated, the gangue fine aggregate, the gangue coarse aggregate, the water, the ordinary silicon are then added
Acid salt cement, the alkali-activator and the water-reducing agent, up to coal gangue concrete after mixing.
The alkali-activator is industrial sodium hydroxide, purity 95%；The water-reducing agent is polycarboxylic acid series high efficiency water reducing agent.
Embodiment 2
A kind of preparation method of coal gangue concrete, which comprises the following steps:
Step 1: taking gangue, sieved after crushing, respectively obtain partial size less than the coal gangue powder of 0.5mm, partial size 0.5 ~
Gangue fine grained, partial size between 10mm are greater than the gangue coarse granule of 10mm；
Step 2: the coal gangue powder is carried out ball milling, the gangue micro mist that partial size is 0.1 ~ 0.2mm is obtained；
Step 3: the gangue fine grained is crushed again and carries out continuous size fraction gradation, gangue fine aggregate is obtained；
Step 4: the gangue coarse granule is broken into the continuous size fraction material that partial size is 10 ~ 60mm, washing, drying again
Afterwards, gangue coarse aggregate is obtained；
Step 5: 25:30:45:13:25:3:1.5 by weight ratio takes the gangue micro mist, the gangue thin respectively
Aggregate, the gangue coarse aggregate, water, ordinary portland cement, alkali-activator and water-reducing agent, first by the gangue micro mist and
The alkali-activator mixes, and then adds the gangue fine aggregate, the gangue coarse aggregate, the water, described common
Portland cement, the alkali-activator and the water-reducing agent, up to coal gangue concrete after mixing.
The alkali-activator is industrial sodium hydroxide, purity 95%；The water-reducing agent is polycarboxylic acid series high efficiency water reducing agent.
Embodiment 3
A kind of preparation method of coal gangue concrete, which comprises the following steps:
Step 1: taking gangue, sieved after crushing, respectively obtain partial size less than the coal gangue powder of 0.5mm, partial size 0.5 ~
Gangue fine grained, partial size between 10mm are greater than the gangue coarse granule of 10mm；
Step 2: the coal gangue powder is carried out ball milling, the gangue micro mist that partial size is 0.1 ~ 0.2mm is obtained；
Step 3: the gangue fine grained is crushed again and carries out continuous size fraction gradation, gangue fine aggregate is obtained；
Step 4: the gangue coarse granule is broken into the continuous size fraction material that partial size is 10 ~ 60mm, washing, drying again
Afterwards, gangue coarse aggregate is obtained；
Step 5: 30:40:50:15:30:4:2 by weight ratio takes the gangue micro mist, the gangue thin respectively
Aggregate, the gangue coarse aggregate, water, ordinary portland cement, alkali-activator and water-reducing agent, first by the gangue micro mist and
The alkali-activator mixes, and then adds the gangue fine aggregate, the gangue coarse aggregate, the water, described common
Portland cement, the alkali-activator and the water-reducing agent, up to coal gangue concrete after mixing.
The alkali-activator is industrial sodium hydroxide, purity 95%；The water-reducing agent is polycarboxylic acid series high efficiency water reducing agent.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright description is applied directly or indirectly in other relevant technology necks
Domain is included within the scope of the present invention.
Claims (3)
1. a kind of preparation method of coal gangue concrete, which comprises the following steps:
Step 1: taking gangue, sieved after crushing, respectively obtain partial size less than the coal gangue powder of 0.5mm, partial size 0.5 ~
Gangue fine grained, partial size between 10mm are greater than the gangue coarse granule of 10mm；
Step 2: the coal gangue powder is carried out ball milling, the gangue micro mist that partial size is 0.1 ~ 0.2mm is obtained；
Step 3: the gangue fine grained is crushed again and carries out continuous size fraction gradation, gangue fine aggregate is obtained；
Step 4: the gangue coarse granule is broken into the continuous size fraction material that partial size is 10 ~ 60mm, washing, drying again
Afterwards, gangue coarse aggregate is obtained；
Step 5: 20 ~ 30:20 by weight ratio ~ 40:40 ~ 50:10 ~ 15:20 ~ 30:2 ~ 4:1 ~ 2 take the gangue respectively
Micro mist, the gangue fine aggregate, the gangue coarse aggregate, water, ordinary portland cement, alkali-activator and water-reducing agent, first
The gangue micro mist and the alkali-activator are mixed, the gangue fine aggregate, the thick bone of the gangue are then added
Material, the water, the ordinary portland cement, the alkali-activator and the water-reducing agent, up to coal gangue concrete after mixing.
2. the preparation method of coal gangue concrete according to claim 1, which is characterized in that the alkali-activator is industry
Sodium hydroxide, purity 95%.
3. the preparation method of coal gangue concrete according to claim 1, which is characterized in that the water-reducing agent is polycarboxylic acids
Series high-efficiency water-reducing agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910385429.XA CN110002825A (en) | 2019-05-09 | 2019-05-09 | A kind of preparation method of coal gangue concrete |
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| CN201910385429.XA CN110002825A (en) | 2019-05-09 | 2019-05-09 | A kind of preparation method of coal gangue concrete |
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| CN110002825A true CN110002825A (en) | 2019-07-12 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110369457A (en) * | 2019-07-31 | 2019-10-25 | 北京斯艾尔环境治理科技股份有限公司 | A kind of processing method and application of gangue |
| CN110423057A (en) * | 2019-08-30 | 2019-11-08 | 深圳屹米达环保科技有限公司 | Gangue base geological polymer and preparation method thereof |
| CN111689735A (en) * | 2020-06-15 | 2020-09-22 | 浙江中硕环保科技有限公司 | Coal gangue imitation stone and preparation method thereof |
| CN112707700A (en) * | 2020-12-29 | 2021-04-27 | 张家港市华诚混凝土构件有限公司 | Single-particle-level coal gangue self-compacting concrete |
| CN113233797A (en) * | 2020-09-21 | 2021-08-10 | 合肥工业大学 | Coal gangue-based cementing material and preparation method thereof |
| CN113233842A (en) * | 2021-06-08 | 2021-08-10 | 辽宁工程技术大学 | Preparation method of coal gangue heat-insulating concrete |
| CN113716917A (en) * | 2021-09-08 | 2021-11-30 | 河北建筑工程学院 | Preparation method of coal gangue coarse aggregate concrete |
| CN114101280A (en) * | 2021-10-12 | 2022-03-01 | 航天凯天环保科技股份有限公司 | Coal gangue cascade utilization system and method |
| CN114455908A (en) * | 2022-01-26 | 2022-05-10 | 中国矿业大学 | Gangue full-aggregate concrete and preparation method thereof |
-
2019
- 2019-05-09 CN CN201910385429.XA patent/CN110002825A/en not_active Withdrawn
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110369457A (en) * | 2019-07-31 | 2019-10-25 | 北京斯艾尔环境治理科技股份有限公司 | A kind of processing method and application of gangue |
| CN110369457B (en) * | 2019-07-31 | 2021-05-14 | 北京斯艾尔环境治理科技股份有限公司 | Coal gangue treatment method and application |
| CN110423057A (en) * | 2019-08-30 | 2019-11-08 | 深圳屹米达环保科技有限公司 | Gangue base geological polymer and preparation method thereof |
| CN111689735A (en) * | 2020-06-15 | 2020-09-22 | 浙江中硕环保科技有限公司 | Coal gangue imitation stone and preparation method thereof |
| CN113233797A (en) * | 2020-09-21 | 2021-08-10 | 合肥工业大学 | Coal gangue-based cementing material and preparation method thereof |
| CN113233797B (en) * | 2020-09-21 | 2023-01-06 | 合肥工业大学 | Coal gangue-based cementing material and preparation method thereof |
| CN112707700A (en) * | 2020-12-29 | 2021-04-27 | 张家港市华诚混凝土构件有限公司 | Single-particle-level coal gangue self-compacting concrete |
| CN113233842A (en) * | 2021-06-08 | 2021-08-10 | 辽宁工程技术大学 | Preparation method of coal gangue heat-insulating concrete |
| CN113716917A (en) * | 2021-09-08 | 2021-11-30 | 河北建筑工程学院 | Preparation method of coal gangue coarse aggregate concrete |
| CN114101280A (en) * | 2021-10-12 | 2022-03-01 | 航天凯天环保科技股份有限公司 | Coal gangue cascade utilization system and method |
| CN114101280B (en) * | 2021-10-12 | 2023-09-12 | 航天凯天环保科技股份有限公司 | Gangue cascade utilization system and method |
| CN114455908A (en) * | 2022-01-26 | 2022-05-10 | 中国矿业大学 | Gangue full-aggregate concrete and preparation method thereof |
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Application publication date: 20190712 |