CN103553398A - Concrete composite admixture and preparation method and application thereof - Google Patents
Concrete composite admixture and preparation method and application thereof Download PDFInfo
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- CN103553398A CN103553398A CN201310454096.4A CN201310454096A CN103553398A CN 103553398 A CN103553398 A CN 103553398A CN 201310454096 A CN201310454096 A CN 201310454096A CN 103553398 A CN103553398 A CN 103553398A
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- concrete
- glass powder
- slag
- flyash
- glass
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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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- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a concrete composite admixture comprising glass powder, steel slag, fly ash, and slaked lime with a mass ratio of (50-70): (10-30): (10-30): (2-8). The invention also discloses a preparation method and an application of the composite admixture. The method has the advantages that: the concrete composite admixture is prepared from industrial waste materials such as waste glass, steel slag, and the like. Waste hydration activity is stimulated among the components. The admixture can be used for replacing partial cement on a basis of ensuring concrete mechanical performance and durability, such that concrete single-square-meter raw material cost is reduced by 5-10%. Therefore, concrete cost is greatly reduced, concrete initial slump degree can be improved, concrete late-stage compressive strength can be improved, and concrete durability can be improved. Therefore, waste can be turned into resource, and good economical and social benefits are provided.
Description
Technical field
The present invention relates to a kind of concrete admixture and its preparation method and application.
Background technology
Along with China's rapid development of economy, glass is widely used in each department of the national economy such as building, chemical industry, equipment, daily life with its unique performance, cause scrap glass to increase year by year simultaneously.The annual scrap glass in China city is about 450～7,500,000 tons, accounts for 3～5% of domestic waste total amount.Glass chemistry stable performance, is difficult to decompose, at present except a part seldom can be recovered utilization, more scrap glass be form with refuse by throwing in wasteland, thousand are immortal.Research is used scrap glass as concrete adulterant, not only for a large amount of urban solid garbages that reduce find an effective way, but also for development environment-friendly type building plays a role in promoting, have important economic benefit and environmental benefit.
At present, the utilization ratios such as smelting iron and steel waste slag, power station waste flyash are lower, taken a large amount of soils, serious environment pollution.Find effective, green treatment process, become the active demand of present society.Concrete admixture is often because of the too single gelling material poor activity that causes both at home and abroad, and concrete strength is lower, or high cost has affected the use of industrial waste greatly.
Summary of the invention
Goal of the invention: for the problems referred to above, the object of this invention is to provide a kind of concrete admixture that utilizes multiple trade waste to prepare, improve concrete product performance, significantly reduce concrete material cost; Preparation method and the application of this adulterant are provided simultaneously.
Technical scheme: a kind of concrete composite blending material, comprise glass powder, slag, flyash, white lime, each constituent mass is than being glass powder: slag: flyash: white lime=(50～70): (10～30): (10～30): (2～8).
Described glass powder is transparent glass and the stained glass bottle waste material of reusable edible.
The preparation method of above-mentioned a kind of concrete composite blending material, is not less than 550m by glass powder with white lime mixing abrasive dust to specific surface area
2/ kg, the independent abrasive dust of slag to specific surface area is not less than 250m
2/ kg, flyash 45 μ m tail over and are not more than 45%, then above-mentioned powder are mixed in mass ratio.
White lime, as alkali-activator, can promote the getting up early aquation process of glass powder, slag, these trade wastes of flyash.
Glass powder to fineness requirement, can make it have aquation bonding capacity with white lime mixing abrasive dust, increases pozzolanic reaction process, and excites the hydration activity of other component of adulterant.
The application of above-mentioned a kind of concrete composite blending material, the volume of described composite blend in concrete is not more than 30% of gelling material quality.
Beneficial effect: compared with prior art, advantage of the present invention is to utilize the industrial wastes such as discarded glass, slag to make compound concrete admixture, between component, mutually excite waste hydration activity, can under the prerequisite that guarantees mechanical performance of concrete and endurance quality, replace part of cement, make the former material cost 5～10% of concrete folk prescription, greatly reduce Cost of Concrete, can also improve the initial slump of concrete, later stage ultimate compression strength and endurance quality, make changing rejected material to useful resource, and there is good economic benefit and social benefit.
Embodiment
Below in conjunction with specific embodiment, further illustrate the present invention, should understand these embodiment is only not used in and limits the scope of the invention for the present invention is described, after having read the present invention, those skilled in the art all fall within the application's claims limited range to the modification of the various equivalent form of values of the present invention.
Embodiment 1:
Prepare composite blend: glass powder in mass ratio: slag: flyash: white lime=70: then 16: 15: 5 each components of proportioning are 550m by glass powder with white lime mixing abrasive dust to specific surface area
2/ kg, slag abrasive dust to specific surface area is 250m
2/ kg, it is 45% that flyash 45 μ m tail over, and ground powder is mixed.
Prepare concrete: the volume of composite blend in concrete is 20% of gelling material quality.Following table classify with certain containing the blank concrete of composite blend of the present invention not as a comparison, adds the coagulation after the composite blend of above-mentioned preparation
Soil composition:
Two kinds of concrete in upper table are carried out to correlated performance index test, and result is listed following table in:
Embodiment 2:
Prepare composite blend: glass powder in mass ratio: slag: flyash: white lime=70: then 10: 17: 3 each components of proportioning are 580m by glass powder with white lime mixing abrasive dust to specific surface area
2/ kg, slag abrasive dust to specific surface area is 280m
2/ kg, it is 40% that flyash 45 μ m tail over, and ground powder is mixed.
Prepare concrete: the volume of composite blend in concrete is 20% of gelling material quality.Following table classify with certain containing the blank concrete of composite blend of the present invention not as a comparison, adds the coagulation after the composite blend of above-mentioned preparation
Soil composition:
Two kinds of concrete in upper table are carried out to correlated performance index test, and result is listed following table in:
Embodiment 3:
Prepare composite blend: glass powder in mass ratio: slag: flyash: white lime=50: then 20: 25: 5 each components of proportioning are 550m by glass powder with white lime mixing abrasive dust to specific surface area
2/ kg, slag abrasive dust to specific surface area is 250m
2/ kg, it is 38% that flyash 45 μ m tail over, and ground powder is mixed.
Prepare concrete: the volume of composite blend in concrete is 20% of gelling material quality.Following table classify with certain containing the blank concrete of composite blend of the present invention not as a comparison, adds the coagulation after the composite blend of above-mentioned preparation
Soil composition:
Two kinds of concrete in upper table are carried out to correlated performance index test, and result is listed following table in:
Embodiment 4:
Prepare composite blend: glass powder in mass ratio: slag: flyash: white lime=60: then 30: 30: 2 each components of proportioning are 600m by glass powder with white lime mixing abrasive dust to specific surface area
2/ kg, slag abrasive dust to specific surface area is 300m
2/ kg, it is 35% that flyash 45 μ m tail over, and ground powder is mixed.
Prepare concrete: the volume of composite blend in concrete is 30% of gelling material quality.Following table classify with certain containing the blank concrete of composite blend of the present invention not as a comparison, adds the coagulation after the composite blend of above-mentioned preparation
Soil composition:
Two kinds of concrete in upper table are carried out to correlated performance index test, and result is listed following table in:
Embodiment 5:
Prepare composite blend: glass powder in mass ratio: slag: flyash: white lime=60: then 25: 26: 8 each components of proportioning are 600m by glass powder with white lime mixing abrasive dust to specific surface area
2/ kg, slag abrasive dust to specific surface area is 280m
2/ kg, it is 38% that flyash 45 μ m tail over, and ground powder is mixed.
Prepare concrete: the volume of composite blend in concrete is 25% of gelling material quality.Following table classify with certain containing the blank concrete of composite blend of the present invention not as a comparison, adds the concrete composition after the composite blend of above-mentioned preparation:
Two kinds of concrete in upper table are carried out to correlated performance index test, and result is listed following table in:
The testing performance index result contrast of above-mentioned 5 embodiment is visible: the admixture of composite blend of the present invention contributes to improve the slump of fresh concrete; Although ultimate compression strength is lower in early days, later strength development is very fast, and higher than blank concrete; Composite blend contributes to improve concrete endurance quality, chloride permeability test and the demonstration of alkali resistant aggregate reaction test-results, and the concrete performance of admixture adulterant of the present invention is better than blank concrete.By test and practical proof, the present invention produces a desired effect.
Claims (4)
1. a concrete composite blending material, is characterized in that: comprise glass powder, slag, flyash, white lime, each constituent mass is than being glass powder: slag: flyash: white lime=(50～70): (10～30): (10～30): (2～8).
2. a kind of concrete composite blending material according to claim 1, is characterized in that: the transparent glass that described glass powder is reusable edible and stained glass bottle waste material.
3. a preparation method for concrete composite blending material claimed in claim 1, is characterized in that: glass powder is not less than to 550m with white lime mixing abrasive dust to specific surface area
2/ kg, the independent abrasive dust of slag to specific surface area is not less than 250m
2/ kg, flyash 45 μ m tail over and are not more than 45%, then above-mentioned powder are mixed in mass ratio.
4. an application for concrete composite blending material claimed in claim 1, is characterized in that: the volume of described composite blend in concrete is not more than 30% of gelling material quality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310454096.4A CN103553398A (en) | 2013-09-29 | 2013-09-29 | Concrete composite admixture and preparation method and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310454096.4A CN103553398A (en) | 2013-09-29 | 2013-09-29 | Concrete composite admixture and preparation method and application thereof |
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| CN103553398A true CN103553398A (en) | 2014-02-05 |
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| CN201310454096.4A Pending CN103553398A (en) | 2013-09-29 | 2013-09-29 | Concrete composite admixture and preparation method and application thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107555896A (en) * | 2017-08-21 | 2018-01-09 | 暨南大学 | It is a kind of to excite slag and the standby admixture of coal ash for manufacturing and the high-strength concrete prepared using admixture with waterglass |
| CN107746198A (en) * | 2017-11-10 | 2018-03-02 | 中建西部建设贵州有限公司 | A kind of scrap glass powder composite blend and preparation method thereof |
| CN108558280A (en) * | 2018-01-18 | 2018-09-21 | 成都建工赛利混凝土有限公司 | Clear-water concrete and its preparation process |
| CN113493336A (en) * | 2020-04-08 | 2021-10-12 | 新疆维吾尔自治区煤炭科学研究所 | Preparation method of fly ash-slag-based cemented filling material |
| CN114751668A (en) * | 2022-04-06 | 2022-07-15 | 盐城市鼎力新材料有限公司 | Early-strength ultrafine mineral admixture and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102219459A (en) * | 2011-04-02 | 2011-10-19 | 武汉理工大学 | Radiation shield concrete and preparation method thereof |
-
2013
- 2013-09-29 CN CN201310454096.4A patent/CN103553398A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102219459A (en) * | 2011-04-02 | 2011-10-19 | 武汉理工大学 | Radiation shield concrete and preparation method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107555896A (en) * | 2017-08-21 | 2018-01-09 | 暨南大学 | It is a kind of to excite slag and the standby admixture of coal ash for manufacturing and the high-strength concrete prepared using admixture with waterglass |
| CN107746198A (en) * | 2017-11-10 | 2018-03-02 | 中建西部建设贵州有限公司 | A kind of scrap glass powder composite blend and preparation method thereof |
| CN108558280A (en) * | 2018-01-18 | 2018-09-21 | 成都建工赛利混凝土有限公司 | Clear-water concrete and its preparation process |
| CN113493336A (en) * | 2020-04-08 | 2021-10-12 | 新疆维吾尔自治区煤炭科学研究所 | Preparation method of fly ash-slag-based cemented filling material |
| CN114751668A (en) * | 2022-04-06 | 2022-07-15 | 盐城市鼎力新材料有限公司 | Early-strength ultrafine mineral admixture and preparation method thereof |
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Application publication date: 20140205 |