CN106082753A - Superfine powder concrete admixture - Google Patents
Superfine powder concrete admixture Download PDFInfo
- Publication number
- CN106082753A CN106082753A CN201610408898.5A CN201610408898A CN106082753A CN 106082753 A CN106082753 A CN 106082753A CN 201610408898 A CN201610408898 A CN 201610408898A CN 106082753 A CN106082753 A CN 106082753A
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- CN
- China
- Prior art keywords
- flyash
- weight portion
- alkali
- activator
- furnace slag
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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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
A kind of superfine powder concrete admixture is provided; in with granulated blast-furnace slag and power plant's original state flyash as material of main part; add and adjust material and alkali-activator; it is superfined flyash through ultra-fine grinding mill combined grinding, wherein, the weight portion 10 of granulated blast-furnace slag; the weight portion of flyash is 8; the weight portion adjusting material is 8, and the weight portion of alkali-activator is 2, specific surface area >=600 of described superfined flyash/.The present invention utilizes alkali-activator and micropowder deep process technology; granulated blast-furnace slag and flyash is made to obtain certain fineness and ph value in common mill; higher sodium hydroxide solution is produced in hydration process common with cement; so that silane agent is dissolved and secondary crystallization again in slag and flyash; ultimately form hydrated calcium aluminate sulfate and carbonate crystal, concrete early stage and later strength can be increased considerably.
Description
Technical field
The invention belongs to high-performance composite materials manufacture technology field for building, be specifically related to a kind of superfine powder concrete and blend
Material.
Background technology
China's iron and steel and thermoelectricity production capacity all rank first in the world, cement and concrete yield ranking the first in the world, iron and steel and fire
Electricity produces substantial amounts of slag and flyash in producing, and when these waste residues are used in the production of cement and concrete, typically exists
Replacing cement rate to be only about 20% in concrete production, utilization rate is relatively low, how to prepare the flyash of high effector function, improves
Flyash volume in cement, is the R&D direction deepened and utilize flyash.The most domestic present situation is substantial amounts of flyash
Discharge without any process, occupy cultivated land, polluted source, pollutes environment, therefore thorough pollution administration, makes flyash become useless
For treasured, be nature to it is proposed that severe problem, at present, due to technical restriction, the extensive recycling of flyash
Problem never obtains important breakthrough, it is therefore necessary to propose to improve.
Summary of the invention
Present invention solves the technical problem that: a kind of superfine powder concrete admixture is provided, utilize alkali-activator and ultra-fine
Powder deep process technology, makes granulated blast-furnace slag and flyash obtain certain fineness and ph value in common mill, common with cement
Hydration process produces higher sodium hydroxide solution, so that silane agent is dissolved and two again in slag and flyash
Secondary crystallization, ultimately forms hydrated calcium aluminate sulfate and carbonate crystal, can increase considerably concrete early stage and later strength.
The technical solution used in the present invention: superfine powder concrete admixture, in granulated blast-furnace slag and power plant's original state powder
Coal ash is material of main part, adds and adjusts material and alkali-activator, is superfined flyash through ultra-fine grinding mill combined grinding, wherein,
The weight portion 10 of granulated blast-furnace slag, the weight portion of flyash is 8, and the weight portion adjusting material is 8, the weight of alkali-activator
Part is 2, specific surface area >=600 of described superfined flyash/.
Further, described regulation material is two or more mixing of calcium sulfate, calcium oxide, calcium carbonate, Alumen powder,
Wherein, the weight portion of Alumen powder is 4, other material in the range of be substituted for each other.
Further, described exciting agent is between sulfonate high-efficient alkali water preparation, triisopropanolamine and sodium carbonate and three
Ratio is 0.8:1:0.1.
Present invention advantage compared with prior art:
1, this programme is compared with traditional admixture, has low cost, and volume is big, effective, and easily transport and preservation use
The advantages such as convenience；
2, adjusting material in this programme and all use inorganic material, it is with low cost, it is easy to buying, and can mutually replace；
3, in this programme, exciting agent material all uses organic material, and its consumption is few, effective, and weight is stable；
4, the present invention is in concrete production, makes the double increase of admixture consumption, and cement consumption synchronizes to decline, and reduces life
Produce cost and heat of hydration index, make Cost of Concrete significantly reduce.
Detailed description of the invention
A kind of embodiment of the present invention is described below.
Superfine powder concrete admixture, it is characterised in that with granulated blast-furnace slag and power plant's original state flyash for main body material
Material, adds and adjusts material and alkali-activator, be superfined flyash through ultra-fine grinding mill combined grinding, wherein, and granulated blast-furnace slag
Weight portion 10, the weight portion of flyash is 8, and the weight portion adjusting material is 8, and the weight portion of alkali-activator is 2, described super
Specific surface area >=600 of fine powdered coal/.
Above-mentioned regulation material is two or more mixing of calcium sulfate, calcium oxide, calcium carbonate, Alumen powder, wherein, Alumen
The weight portion of powder is 4, other material in the range of be substituted for each other；Above-mentioned exciting agent is sulfonate high-efficient alkali water preparation, three isopropanols
Ratio between amine and sodium carbonate and three is 0.8:1:0.1.
The present invention utilizes alkali-activator and micropowder deep process technology, makes slag and flyash obtain in common mill necessarily
Fineness and ph value, in hydration process common with cement, produce higher sodium hydroxide solution, so that slag and flyash
Middle silane agent is dissolved and secondary crystallization again, ultimately forms hydrated calcium aluminate sulfate and carbonate crystal, can significantly increase
Adding concrete early stage and later strength, based on this technical advantage, KM micropowder compares with flyash with traditional slag,
Concrete production replaces cement rate can double to replace, macroscopically say, increase the dynamics of digestion industrial residue, decrease cement
Consumption demand, has saved the resources of production, decreases the waste gas discharge in production process, can produce good social benefit, specifically
To concrete production enterprise, not only reduce production cost, improve fresh mixing concrete property, on the basis of proof strength, from
Fundamentally solve the heat of hydration problem of mass concrete, make concrete almost nil because of the cracking probability of heat of hydration factor.
Above-described embodiment, simply presently preferred embodiments of the present invention, not be used for limiting the scope of the present invention, therefore all with this
The equivalence change that content described in invention claim is done, within all should being included in scope of the invention as claimed.
Claims (3)
1. superfine powder concrete admixture, it is characterised in that with granulated blast-furnace slag and power plant's original state flyash as material of main part,
Add and adjust material and alkali-activator, be superfined flyash through ultra-fine grinding mill combined grinding, wherein, the weight of granulated blast-furnace slag
Amount part 10, the weight portion of flyash is 8, and the weight portion adjusting material is 8, and the weight portion of alkali-activator is 2, described micropowder
Specific surface area >=600 of coal ash/.
Superfine powder concrete admixture the most according to claim 1, it is characterised in that: described regulation material be calcium sulfate,
Calcium oxide, calcium carbonate, two or more mixing of Alumen powder, wherein, the weight portion of Alumen powder is 4, and other material is in scope
Inside it is substituted for each other.
Superfine powder concrete admixture the most according to claim 1, it is characterised in that: described exciting agent is that sulfonate is efficient
Ratio between aqueous alkali agent, triisopropanolamine and sodium carbonate and three is 0.8:1:0.1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610408898.5A CN106082753B (en) | 2016-06-12 | 2016-06-12 | Superfine powder concrete admixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610408898.5A CN106082753B (en) | 2016-06-12 | 2016-06-12 | Superfine powder concrete admixture |
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| Publication Number | Publication Date |
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| CN106082753A true CN106082753A (en) | 2016-11-09 |
| CN106082753B CN106082753B (en) | 2018-09-18 |
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| CN201610408898.5A Active CN106082753B (en) | 2016-06-12 | 2016-06-12 | Superfine powder concrete admixture |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115140966A (en) * | 2022-03-31 | 2022-10-04 | 湖北工业大学 | Concrete composition free of steam curing and concrete member |
| CN115466070A (en) * | 2022-11-02 | 2022-12-13 | 唐山学院 | Ultra-low carbon silicon-rich mineral admixture for high-performance concrete and preparation method thereof |
| CN115490449A (en) * | 2022-10-07 | 2022-12-20 | 江苏金木土科技有限公司 | Preparation method of superfine mineral admixture |
| CN116040974A (en) * | 2023-03-20 | 2023-05-02 | 解婧秋 | Method for preparing superfine powder cement admixture |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1173472A (en) * | 1997-01-29 | 1998-02-18 | 马文忠 | Powdered coal ash cement admixture |
| CN1403400A (en) * | 2002-10-14 | 2003-03-19 | 上海市建筑科学研究院 | Admixture specially for high-performance marine concrete |
| CN101475330A (en) * | 2009-01-22 | 2009-07-08 | 中国建筑材料科学研究总院 | Composite high-early strength blending material for unballasted track plate and use thereof |
| CN101851080A (en) * | 2010-03-19 | 2010-10-06 | 华东交通大学 | Acid rain corrosion resisting concrete additive and preparation method thereof |
| CN102311239A (en) * | 2011-06-15 | 2012-01-11 | 浙江天达环保股份有限公司 | Compound activation method for improving activity of coal ash |
| CN105130232A (en) * | 2015-08-28 | 2015-12-09 | 张冷晶 | Activator of blast furnace pelletized waste residues and application of activator |
-
2016
- 2016-06-12 CN CN201610408898.5A patent/CN106082753B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1173472A (en) * | 1997-01-29 | 1998-02-18 | 马文忠 | Powdered coal ash cement admixture |
| CN1403400A (en) * | 2002-10-14 | 2003-03-19 | 上海市建筑科学研究院 | Admixture specially for high-performance marine concrete |
| CN101475330A (en) * | 2009-01-22 | 2009-07-08 | 中国建筑材料科学研究总院 | Composite high-early strength blending material for unballasted track plate and use thereof |
| CN101851080A (en) * | 2010-03-19 | 2010-10-06 | 华东交通大学 | Acid rain corrosion resisting concrete additive and preparation method thereof |
| CN102311239A (en) * | 2011-06-15 | 2012-01-11 | 浙江天达环保股份有限公司 | Compound activation method for improving activity of coal ash |
| CN105130232A (en) * | 2015-08-28 | 2015-12-09 | 张冷晶 | Activator of blast furnace pelletized waste residues and application of activator |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115140966A (en) * | 2022-03-31 | 2022-10-04 | 湖北工业大学 | Concrete composition free of steam curing and concrete member |
| CN115490449A (en) * | 2022-10-07 | 2022-12-20 | 江苏金木土科技有限公司 | Preparation method of superfine mineral admixture |
| CN115466070A (en) * | 2022-11-02 | 2022-12-13 | 唐山学院 | Ultra-low carbon silicon-rich mineral admixture for high-performance concrete and preparation method thereof |
| CN116040974A (en) * | 2023-03-20 | 2023-05-02 | 解婧秋 | Method for preparing superfine powder cement admixture |
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| Publication number | Publication date |
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| CN106082753B (en) | 2018-09-18 |
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