CN108975743A - Concrete external doped material and preparation method thereof comprising steel slag and straw ash - Google Patents
Concrete external doped material and preparation method thereof comprising steel slag and straw ash Download PDFInfo
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- CN108975743A CN108975743A CN201811024440.5A CN201811024440A CN108975743A CN 108975743 A CN108975743 A CN 108975743A CN 201811024440 A CN201811024440 A CN 201811024440A CN 108975743 A CN108975743 A CN 108975743A
- Authority
- CN
- China
- Prior art keywords
- parts
- steel slag
- doped material
- concrete external
- straw ash
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- 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.)
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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
- 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
-
- 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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
- C04B18/10—Burned or pyrolised refuse
- C04B18/101—Burned rice husks or other burned vegetable material
-
- 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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/14—Waste materials; Refuse from metallurgical processes
- C04B18/141—Slags
- C04B18/142—Steelmaking slags, converter slags
-
- 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
Abstract
The invention discloses a kind of concrete external doped material and preparation method thereof comprising steel slag and straw ash, the concrete external doped material includes: 300~500 parts of steel slag by mass fraction；100~200 parts of straw ash；10~20 parts of water-reducing agent；10~25 parts of stearic acid；30~50 parts of flyash；20~40 parts of cinder.The present invention can prepare high performance concrete external doped material by steel slag, straw ash and other additives, ingredient in straw ash in a large amount of materials such as amorphous silica and steel slag organically combines, the activity of steel slag can be excited, which can significantly improve the flexural strength and compression strength of concrete.
Description
Technical field
The present invention relates to building material technical field, more particularly to a kind of concrete external doped comprising steel slag and straw ash
Material and preparation method thereof.
Background technique
Steel slag is one of steelmaking process byproduct, it is by impurity such as silicon, manganese, phosphorus, sulphur in the pig iron in fusion process
The salt that various oxides and these oxides made of middle oxidation are generated with solvent reaction is formed.Steel slag has there are many containing
With ingredient: metallic iron 2%~8%, calcium oxide 40%~60%, magnesia 3%~10%, manganese oxide 1%~8%, therefore can make
For the use of Ferrous Metallurgy raw material.The mineral composition of steel slag is based on tricalcium silicate, followed by dicalcium silicate, RO phase, dicalcium ferrite
And free calcium oxide.
There are two main paths as secondary resource comprehensive utilization for steel slag: one is sharp in our factory's circulation as solvent is smelted
With not only can replace lime stone, and can therefrom recycle a large amount of metallic iron and other useful elements；The other is as system
Make the raw material of road-making material, construction material or agricultural fertilizer.
Stalk is the general name of mature crops stem and leaf part, and China is a large agricultural country, is counted according to update, the whole nation
Agricultural crop straw has 700,000,000 t every year, occupies first place in the world.Annual summer, time in autumn, China vast rural area especially with dry farming
Northern area based on agricultural can usually see high fire and the dense smoke of Burning Straws, either village or city
Overhead can all diffuse dirty air, and evidence suggests the unordered open burning of a large amount of stalks is to cause the major reason of haze
One of, air environment is seriously polluted, not only influences people's health, but also bring greatly not to the daily traffic trip of people
Just.The temperature that the burning of stalk will lead to soil surface increases, and the beneficial microbe in soil is burnt to death, to the matter of field-crop
Amount and yield have a direct impact, and reduce agricultural income.Alleviate the ecological resources waste generated by crop straw burning and environment
Pollution, the status of social danger are extremely urgent.
Therefore, in view of the above technical problems, it is necessary to provide a kind of concrete external doped material comprising steel slag and straw ash and
Preparation method.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of concrete external doped material and its system comprising steel slag and straw ash
Preparation Method.
To achieve the goals above, the technical solution that one embodiment of the invention provides is as follows:
A kind of concrete external doped material comprising steel slag and straw ash, the concrete external doped material include: by mass fraction
300~500 parts of steel slag；100~200 parts of straw ash；10~20 parts of water-reducing agent；10~25 parts of stearic acid；Flyash
30~50 parts；20~40 parts of cinder.
As a further improvement of the present invention, the concrete external doped material includes: by mass fraction
400~450 parts of steel slag；150~200 parts of straw ash；15~20 parts of water-reducing agent；15~25 parts of stearic acid；Flyash
40~50 parts；20~30 parts of cinder.
As a further improvement of the present invention, in the concrete external doped material, the ratio between steel slag and stearic mass fraction
For 25:1.
As a further improvement of the present invention, in the concrete external doped material, the mass fraction of straw ash and water-reducing agent it
Than for 10:1.
As a further improvement of the present invention, the average grain diameter of the steel slag is less than or equal to 50 μm.
As a further improvement of the present invention, the water-reducing agent is aminosulfonate-based superplasticizer or poly-carboxylic high-performance diminishing
Agent.
The technical solution that one embodiment of the invention provides is as follows:
A kind of preparation method of the concrete external doped material comprising steel slag and straw ash, the preparation method include:
It will be ground after 300~500 parts and 5~10 parts of stearic acid mixing of steel slag by mass fraction, obtain the first mixture；
It will be stirred evenly after 100~200 parts and 10~20 parts of water-reducing agent mixing of straw ash by mass fraction, it is mixed to obtain second
Close object；
It will be stirred evenly after 40~50 parts of first mixture, the second mixture and flyash and 20~30 parts of cinder mixing,
Obtain concrete external doped material.
As a further improvement of the present invention, milling time 25min~30min of first mixture.
As a further improvement of the present invention, the preparation method further include:
Second mixture is stood into 3h~5h at a temperature of 20 DEG C~30 DEG C.
The beneficial effects of the present invention are:
The present invention can prepare high performance concrete external doped material, straw ash by steel slag, straw ash and other additives
In ingredient combination in a large amount of materials such as amorphous silica and steel slag, the activity of steel slag can be excited, the coagulation
Native extra material can significantly improve the flexural strength and compression strength of concrete.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The some embodiments recorded in invention, for those of ordinary skill in the art, without creative efforts,
It is also possible to obtain other drawings based on these drawings.
Fig. 1 is the process flow chart of the concrete external doped preparation method for material comprising steel slag and straw ash in the present invention.
Specific embodiment
Technical solution in order to enable those skilled in the art to better understand the present invention, below in conjunction with of the invention real
The attached drawing in example is applied, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work, all should belong to protection of the present invention
Range.
The invention discloses a kind of concrete external doped material comprising steel slag and straw ash, the concrete external doped material press mass parts
Number includes:
300~500 parts of steel slag；100~200 parts of straw ash；10~20 parts of water-reducing agent；10~25 parts of stearic acid；Flyash
30~50 parts；20~40 parts of cinder.
Preferably, concrete external doped material includes: by mass fraction
400~450 parts of steel slag；150~200 parts of straw ash；15~20 parts of water-reducing agent；15~25 parts of stearic acid；Flyash
40~50 parts；20~30 parts of cinder.
Further, in concrete external doped material, the ratio between steel slag and stearic mass fraction are 25:1.Stearic acid can be right
Steel slag is modified, and improves the activation index of steel slag.
Further, in concrete external doped material, the ratio between mass fraction of straw ash and water-reducing agent is 10:1.
Preferably, the average grain diameter of steel slag is less than or equal to 50 μm, can greatly improve impervious, the anti-chemistry of concrete
Erosion performance improves the durability performance of concrete.
Water-reducing agent in the present invention is aminosulfonate-based superplasticizer or high performance water reducing agent of polyocarboxy acid.There is water-reducing agent dispersion to make
With can improve workability, reduce unit consumption of water, improve the mobility of concrete mix.
Join shown in Fig. 1, the invention also discloses a kind of preparation method of concrete external doped material comprising steel slag and straw ash,
Include:
It will be ground after 300~500 parts and 5~10 parts of stearic acid mixing of steel slag by mass fraction, milling time 10min~
30min obtains the first mixture.In grinding, stearic acid can play the role of grinding aid, further decrease the average grain of steel slag
Diameter；
It will be stirred evenly after 100~200 parts and 10~20 parts of water-reducing agent mixing of straw ash by mass fraction, 20 DEG C~30
1h~5h is stood at a temperature of DEG C, obtains the second mixture；
It will be stirred evenly after 40~50 parts of first mixture, the second mixture and flyash and 20~30 parts of cinder mixing,
Obtain concrete external doped material.
It elaborates below in conjunction with specific embodiment to the present invention.
Embodiment 1:
Concrete external doped material in the present embodiment includes: by mass fraction
500 parts of steel slag；180 parts of straw ash；15 parts of water-reducing agent；16 parts of stearic acid；40 parts of flyash；30 parts of cinder.
Wherein, the average grain diameter of steel slag is less than or equal to 50 μm.
The preparation method of concrete external doped material includes: in the present embodiment
It will be ground after 500 parts and 15 parts of stearic acid mixing of steel slag by mass fraction, it is mixed to obtain first by milling time 25min
Close object；
It will be stirred evenly after 180 parts and 18 parts of water-reducing agent mixing of straw ash by mass fraction, stand 4h at a temperature of 25 DEG C,
Obtain the second mixture；
It will be stirred evenly after 40 parts of first mixture, the second mixture and flyash and 30 parts of cinder mixing, obtain coagulation
Native extra material.
Embodiment 2:
Concrete external doped material in the present embodiment includes: by mass fraction
400 parts of steel slag；180 parts of straw ash；18 parts of water-reducing agent；16 parts of stearic acid；40 parts of flyash；30 parts of cinder.
Wherein, the average grain diameter of steel slag is less than or equal to 50 μm.
The preparation method of concrete external doped material includes: in the present embodiment
It will be ground after 400 parts and 16 parts of stearic acid mixing of steel slag by mass fraction, it is mixed to obtain first by milling time 30min
Close object；
It will be stirred evenly after 180 parts and 18 parts of water-reducing agent mixing of straw ash by mass fraction, stand 4h at a temperature of 25 DEG C,
Obtain the second mixture；
It will be stirred evenly after 40 parts of first mixture, the second mixture and flyash and 30 parts of cinder mixing, obtain coagulation
Native extra material.
Embodiment 3:
Concrete external doped material in the present embodiment includes: by mass fraction
400 parts of steel slag；200 parts of straw ash；10 parts of water-reducing agent；16 parts of stearic acid；40 parts of flyash；30 parts of cinder.
Wherein, the average grain diameter of steel slag is less than or equal to 50 μm.
The preparation method of concrete external doped material includes: in the present embodiment
It will be ground after 400 parts and 16 parts of stearic acid mixing of steel slag by mass fraction, it is mixed to obtain first by milling time 30min
Close object；
It will be stirred evenly after 200 parts and 10 parts of water-reducing agent mixing of straw ash by mass fraction, stand 3h at a temperature of 30 DEG C,
Obtain the second mixture；
It will be stirred evenly after 40 parts of first mixture, the second mixture and flyash and 30 parts of cinder mixing, obtain coagulation
Native extra material.
By test, concrete external doped material obtained in embodiment 1 carries out anti-permeability performance, chemical resistance of concrete performance, durable
Property performance it is best, join shown in table 1, pass through flexural strength, the pressure resistance of concrete prepared by concrete external doped material in embodiment 1
Degree is best.
Table 1: concrete external doped material prepares the performance test of concrete
As can be seen from the above technical solutions, the invention has the following advantages:
The present invention can prepare high performance concrete external doped material, straw ash by steel slag, straw ash and other additives
In ingredient combination in a large amount of materials such as amorphous silica and steel slag, the activity of steel slag can be excited, the coagulation
Native extra material can significantly improve the flexural strength and compression strength of concrete.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (9)
1. a kind of concrete external doped material comprising steel slag and straw ash, which is characterized in that the concrete external doped material presses mass parts
Number includes:
300~500 parts of steel slag；100~200 parts of straw ash；10~20 parts of water-reducing agent；10~25 parts of stearic acid；Flyash 30~
50 parts；20~40 parts of cinder.
2. concrete external doped material according to claim 1, which is characterized in that the concrete external doped material presses mass fraction packet
It includes:
400~450 parts of steel slag；150~200 parts of straw ash；15~20 parts of water-reducing agent；15~25 parts of stearic acid；Flyash 40~
50 parts；20~30 parts of cinder.
3. concrete external doped material according to claim 2, which is characterized in that in the concrete external doped material, steel slag and hard
The ratio between mass fraction of resin acid is 25:1.
4. concrete external doped material according to claim 2, which is characterized in that in the concrete external doped material, straw ash and
The ratio between mass fraction of water-reducing agent is 10:1.
5. concrete external doped material according to claim 1, which is characterized in that the average grain diameter of the steel slag is less than or equal to
50μm。
6. concrete external doped material according to claim 1, which is characterized in that the water-reducing agent be aminosulfonate-based superplasticizer or
High performance water reducing agent of polyocarboxy acid.
7. a kind of preparation side of the concrete external doped material such as described in any one of claims 1 to 6 comprising steel slag and straw ash
Method, which is characterized in that the preparation method includes:
It will be ground after 300~500 parts and 5~10 parts of stearic acid mixing of steel slag by mass fraction, obtain the first mixture；
It will be stirred evenly after 100~200 parts and 10~20 parts of water-reducing agent mixing of straw ash by mass fraction, obtain the second mixing
Object；
It will stir evenly, obtain after 40~50 parts of first mixture, the second mixture and flyash and 20~30 parts of cinder mixing
Concrete external doped material.
8. preparation method according to claim 7, which is characterized in that the milling time 25min of first mixture~
30min。
9. preparation method according to claim 7, which is characterized in that the preparation method further include:
Second mixture is stood into 3h~5h at a temperature of 20 DEG C~30 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811024440.5A CN108975743A (en) | 2018-09-04 | 2018-09-04 | Concrete external doped material and preparation method thereof comprising steel slag and straw ash |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811024440.5A CN108975743A (en) | 2018-09-04 | 2018-09-04 | Concrete external doped material and preparation method thereof comprising steel slag and straw ash |
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| CN108975743A true CN108975743A (en) | 2018-12-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114149202A (en) * | 2021-10-26 | 2022-03-08 | 河海大学 | Dredged sludge curing agent with high water content and preparation method and application thereof |
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| KR20110026038A (en) * | 2009-09-07 | 2011-03-15 | 허정도 | Temperature-controlled modified recycling mixes for reuse of 100% rap in road pavements and manufacturing methods thereof |
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Application publication date: 20181211 |
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