CN106495583A - Early strong high-performance is combined steelslag powder as additive and its application in concrete batching - Google Patents
Early strong high-performance is combined steelslag powder as additive and its application in concrete batching Download PDFInfo
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- CN106495583A CN106495583A CN201610936290.XA CN201610936290A CN106495583A CN 106495583 A CN106495583 A CN 106495583A CN 201610936290 A CN201610936290 A CN 201610936290A CN 106495583 A CN106495583 A CN 106495583A
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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
- C04B40/0042—Powdery mixtures
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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
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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
- 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
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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)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
The invention discloses a kind of compound steelslag powder as additive of morning strong high-performance, the admixture includes breeze and raw steel ground-slag, first, the raw steel ground-slag is pre-processed, then, compounded by the breeze and through pretreated steel-making slag powder, the compound steelslag powder as additive of early strong high-performance, the density >=3.0g/cm of the compound steelslag powder as additive of obtained early strong high-performance is obtained3, specific surface area >=420m2/ Kg, sulfur trioxide≤2.0%, loss on ignition≤1.5%, chloride ion content≤0.03%, moisture content≤0.5%, activity index 7 days >=80%, 28 days >=102%, fluidity ratio >=103%；The present invention both overcomes and the low deficiency of steel-making slag powder early strength is used alone, while make up low breeze basicity, the easy reinforcement anticorrosion ability of large dosage and the defect for wearing no resistance again, plays performance complement, the effect of function superposition, and improves the range of application of admixture.
Description
Technical field
The invention belongs to construction material concrete material field, and in particular to a kind of compound steel-making slag powder of morning strong high-performance is blended
Material and its application in concrete batching.
Background technology
With the fast development of China's steel and iron industry, the accessory substance of slag and blast-furnace cinder as steel-making, yield also with
Day all increasings, output capacity are respectively the 14% and 30% of crude steel yield.About 9.51 hundred million tons of the output of steel of China in 2012, the steel of generation
About 1.33 hundred million tons of slag, about 2.85 hundred million tons of blast-furnace cinder.Through effort for many years, blast-furnace cinder has been widely used as concrete and has mixed
Close material, comprehensive utilization ratio about more than 80%.And slag may cause to stabilize due to there is the materials such as free calcium oxide, magnesia
The property cause influence such as bad, iron and steel ground-slag early activity is poor, grindability is not good its application in cement and concrete, can only
Simply serve as pavement material, engineering backfilling material etc..According to relevant document, the utilization rate of slag is only 10%, has nearly 1 every year
Hundred million tons of slag is not utilized effectively, the stacking of big steel slag, idle, not only occupies substantial amounts of arable land, and in slag
Heavy metal ion, alkali metal ion can also penetrate in soil, cause underground water pollution.Thus carry out grinding for slag comprehensive utilization
Study carefully a problem that preserves the ecological environment, promote resource circulation utilization and social sustainable development.
Existing steel-making slag powder is used for concrete, can save cement, reduces cost；Pollution environment is reduced, meets concrete
The thinking of sustainable development；More the more important is that it can improve many performances of concrete.The work of fresh concrete can be improved
Make performance, reduce the heat of hydration, enhancement later strength, and improve the internal structure of concrete, improve resistance to corrosion.But steel-making slag powder
It is relatively slow that concrete feature is that early strength increases, and early activity is low, it is difficult to meet applying for concrete that early strength is required
Work.
Content of the invention
For problems of the prior art, the present invention provide a kind of compound steelslag powder as additive of strong high-performance of morning and its
Application in concrete batching, while endurance performance of concrete and service behaviour is improved, can improve early strength, iron and steel
Ground-slag is compounded and is made by a certain percentage by breeze, steel-making slag powder, can play steel-making slag powder and the respective advantage of breeze, has both been overcome individually
Using the low deficiency of steel-making slag powder early strength, while make up low breeze basicity, the easy reinforcement anticorrosion ability of large dosage and resistance to again
The defect of mill property difference, plays performance complement, the effect of function superposition, and improves the range of application of admixture.
For achieving the above object, the present invention is employed the following technical solutions：
A kind of compound steelslag powder as additive of morning strong high-performance, the admixture includes breeze and raw steel ground-slag, first, by the original
Steel-making slag powder is pre-processed, and then, is compounded by the breeze and through pretreated steel-making slag powder, and early strong high-performance is obtained
Compound steelslag powder as additive, the density >=3.0g/cm of the compound steelslag powder as additive of obtained morning strong high-performance3, specific surface area >=
420m2/ Kg, sulfur trioxide≤2.0%, loss on ignition≤1.5%, chloride ion content≤0.03%, moisture content≤0.5%, activity index 7
My god >=80%, 28 days >=102%, fluidity ratio >=103%；
Wherein, the ratio in the compound steelslag powder as additive of the morning strong high-performance shared by breeze is 30%-70%, pretreated steel
Ratio shared by ground-slag is 30%-70%；
Fineness D90≤29 μm of the breeze, chloride ion content≤0.03%, sulfur trioxide content≤4.0%, moisture content≤
0.5%th, activity index 7 days >=75%, 28 days >=95%, fluidity ratio >=95%；
Specific surface area >=the 400m of the pretreated steel-making slag powder2/ Kg, chloride ion content≤0.03%, moisture content≤0.5%,
Activity index 7 days >=65%, 28 days >=80%, fluidity ratio >=90%；
The chemical composition and its mass percent of the pretreated steel-making slag powder is respectively CaO：42-45%、SiO2：9.8-
11.3%、AL2O3：1.9-2.6%、MgO：9-10.5%、MnO：2.1-2.65%、P2O5：2.1-2.3%、Fe2O3：11.5-13.3%、
MFe：0.85-0.98%、FeO：14.5-16.2%、S2O3：0.25-0.04%.
Described compounding flow process be：The breeze is transported in breeze storage vault, breeze storage vault bottom is provided with sealing screw
Gate and duplex tube helix feeding machine feeding, then carry out batching by rotor weigher, and breeze enters powder material mixer, with
When pretreated steel-making slag powder is transported to steel-making slag powder storage vault, steel-making slag powder storage vault bottom is provided with sealing screw gate and two-tube spiral shell
Rotation feeding machine feeding, then carries out batching by rotor weigher, and steel-making slag powder is entered powder material mixer and mixed with breeze
Close, after the mixed composite powder of dust-precipitator is through ball mill ball milling 24h, the compound steelslag powder as additive of early strong high-performance be obtained,
The compound steelslag powder as additive of morning strong high-performance is delivered to warehouse for finished product and is stored through bucket elevator, conveying worm.
A kind of compound application of the steelslag powder as additive in concrete batching of morning strong high-performance, the compound steel-making slag powder are blended
When volume of the material in concrete is 20%, in C30～C60 levels are matched somebody with somebody, clad steel slag powder concrete intensity is higher than precious field S95 ore deposits
Powder concrete intensity, in the case where slump control is consistent, clad steel slag powder concrete strength ratio treasured field Concrete With Ground Slag is strong
Spend high by 2%～3%.
When the volume of concrete is 20%, the clad steel slag powder concrete 1d contract with dry rate is pure to the compound steel-making slag powder
The 50%～60% of cement normal concrete, 7d contract with dry rate for striaght cement normal concrete 70%～80%.
In the clad steel slag powder concrete, chlorion electric flux is striaght cement normal concrete 75%～85%, and wearability is
Striaght cement normal concrete 200%～250%.
A kind of compound application of the steelslag powder as additive in concrete batching of morning strong high-performance, the compound steel-making slag powder are blended
Material etc. the cement of the replacement 15～30% of quality, is made to be combined steelslag powder as additive and the total amount of breeze is little in concrete batching
In concrete batching binder total amount 30%.
A kind of compound application of the steelslag powder as additive in concrete batching of morning strong high-performance, the compound steel-making slag powder are mixed
Material is closed in concrete batching, etc. the replacement breeze of quality, makes compound steelslag powder as additive and the total amount of breeze be not more than preparation
The 30% of concrete gel material total amount.
Compared with prior art, beneficial effects of the present invention are：
The present invention is due to adopting trade waste for primary raw material, so raw material has wide material sources, low cost, while reducing
Pollution of the industrial residue to environment, improves the performance of industrial waste steel dreg, expands range of application, is conducive to offal treatment to provide
Source recycles, propulsion china natural resources economizing type, pro-environmental society.
Description of the drawings
Fig. 1 is the process chart of present invention compounding.
Specific embodiment
With reference to implementation example, the invention will be further described, but should not be limited the scope of the invention with this.
Embodiment 1
As shown in figure 1, the early strong high-performance of the present embodiment is combined steelslag powder as additive, the admixture includes breeze and raw steel ground-slag,
First, the raw steel ground-slag is pre-processed, then, is compounded by the breeze and through pretreated steel-making slag powder,
It is obtained the compound steelslag powder as additive of early strong high-performance, the density >=3.0g/ of the compound steelslag powder as additive of obtained morning strong high-performance
cm3, specific surface area >=420m2/ Kg, sulfur trioxide≤2.0%, loss on ignition≤1.5%, chloride ion content≤0.03%, moisture content≤
0.5%th, activity index 7 days >=80%, 28 days >=102%, fluidity ratio >=103%；
Wherein, the ratio in the compound steelslag powder as additive of the morning strong high-performance shared by breeze is 30%, pretreated steel-making slag powder
Shared ratio is 70%；
Fineness D90≤29 μm of the breeze, chloride ion content≤0.03%, sulfur trioxide content≤4.0%, moisture content≤
0.5%th, activity index 7 days >=75%, 28 days >=95%, fluidity ratio >=95%；
Specific surface area >=the 400m of the pretreated steel-making slag powder2/ Kg, chloride ion content≤0.03%, moisture content≤0.5%,
Activity index 7 days >=65%, 28 days >=80%, fluidity ratio >=90%；
The chemical composition and its mass percent of the pretreated steel-making slag powder is respectively CaO：44.8%、SiO2：11%、
AL2O3：1.9%、MgO：10%、MnO：2.1%、P2O5：2.1%、Fe2O3：11.5%、MFe：0.85%、FeO：15.5%、S2O3：
0.25%.
In the present embodiment, compounding flow process is：The breeze is transported in breeze storage vault, breeze storage vault bottom is provided with close
Envelope spiral gate and duplex tube helix feeding machine feeding, then carry out batching by rotor weigher, and breeze enters powder material and mixes
Material machine, while pretreated steel-making slag powder is transported to steel-making slag powder storage vault, steel-making slag powder storage vault bottom is provided with sealing screw gate
With duplex tube helix feeding machine feeding, batching is carried out by rotor weigher then, steel-making slag powder enters powder material mixer and ore deposit
Powder is mixed, and after the mixed composite powder of dust-precipitator is through ball mill ball milling 24h, the compound steel-making slag powder of early strong high-performance is obtained
Admixture, the compound steelslag powder as additive of morning strong high-performance is delivered to warehouse for finished product through bucket elevator, conveying worm to be carried out
Storage.
As shown in table 1- tables 8, the early strong high-performance of the present embodiment is combined application of the steelslag powder as additive in concrete batching
When volume of the compound steelslag powder as additive in concrete is 20%, in C30～C60 levels are matched somebody with somebody, clad steel slag powder concrete
Intensity is higher than precious field S95 Concrete With Ground Slag intensity, in the case where slump control is consistent, clad steel slag powder concrete strength ratio
Precious field Concrete With Ground Slag intensity is high by 2%～3%, be combined steel-making slag powder when the volume of concrete is 20%, the compound steel-making slag powder coagulation
Native 1d contract with dry rate is that the 50%～60% of striaght cement normal concrete, 7d contract with dry rate is the 70%～80% of striaght cement normal concrete；
In the clad steel slag powder concrete, chlorion electric flux is striaght cement normal concrete 75%～85%, and wearability is striaght cement base
Quasi- concrete 200%～250%.
1 concrete test match ratio of table
Note：(1) meet K and represent the flat concrete batching of breeze, G represents iron and steel ground-slag concrete batching, and such as C20-K represents breeze and matches somebody with somebody
The C20 concrete of system；
（2）The control of C20～C35 slumps exists（120±30）The control of mm, the C40 slump exists（150±30）Mm, C50～C60 collapses
Degree of falling control exists（180±30）Mm, controls water and additive usage according to the slump during mixing, it is ensured that Concrete With Ground Slag and
The iron and steel slag powder concrete slump is in control range.
（3）Equal grading concrete, by controlling the slump in equivalents, contrasts breeze and iron and steel slag powder concrete
Service behaviour, mechanical property, and carry out technical and economic analysis and contrast.
Raw material in the present embodiment used by concrete batching are as follows：
1）Cement
Using Haimen conch P.O42.5 and Haimen conch P. II 52.5, its performance meets the standard of GB 175-2007 and requires.Water
The physical properties index of mud is shown in Table 2.
2 Haimen conch P.O42.5 cement physical properties tables of table
3 Haimen conch P. of table, II 52.5 cement physical properties tables
2）Compound steelslag powder as additive
The early strong high-performance of table 4 is combined steelslag powder as additive main performance table
3）Breeze
The blast-furnace cinder micro-powder produced using Shanghai Baotian New Type Building Material Co., Ltd, and meet《In for cement and concrete
Granulated blast-furnace slag》（GB/T 18046）.Property indices are shown in Table 4.
5 breeze main performance table of table
4）Fine aggregate
Using the positive flourish middle sand for providing, its quality meets the standard of JGJ 52-2006 and requires, modulus of fineness 2.5～3.0, sand
Clay content is less than 1%, and clod content is less than 0.5%, and property indices are shown in Table 5.
6 yellow ground performance indications of table
5）Coarse aggregate
Using the rubble of 5-20mm continuous gradings, its quality meets the standard of JGJ 52-2006 and requires that clay content is less than 0.5%,
Clod content is less than 0.2%, and elongated particles are less than 8%, and crush index is less than 7%.Physical properties index is shown in Table 6.
7 stone performance indications of table
6）Additive
Using II c701 and SP-8 high-efficiency water-reducing agent of poly-carboxylic acid of SQ-, its quality meets the performance indications of efficient additive, and items refer to
Mark is shown in Table 7.
8 SQ- of table, II c701 high-efficiency water-reducing agent of poly-carboxylic acid performance indications
| Solids content | Density r (g/ml) | PH value | Cement mortar water-reducing rate % |
| 15.21 | 1.052 | 5.6 | 16% |
9 SP-8 high-efficiency water-reducing agent of poly-carboxylic acid performance indications of table
| Solids content | Density r (g/ml) | PH value | Cement mortar water-reducing rate % |
| 20.8 | 1.053 | 5.10 | 20% |
3. result of the test
8 result of the test of table
Above-mentioned test result indicate that, iron and steel ground-slag mechanical property compared with precious field S95 breezes, in C30～C60 levels are matched somebody with somebody, iron and steel
Slag powder concrete strength ratio treasured field S95 Concrete With Ground Slag intensity is slightly higher, and in the case where slump control is consistent, iron and steel ground-slag is mixed
Solidifying soil strength ratio treasured field Concrete With Ground Slag intensity is high by 2%～3%.
Embodiment 2
As shown in figure 1, the early strong high-performance of the present embodiment is combined steelslag powder as additive, the admixture includes breeze and raw steel ground-slag,
First, the raw steel ground-slag is pre-processed, then, is compounded by the breeze and through pretreated steel-making slag powder,
It is obtained the compound steelslag powder as additive of early strong high-performance, the density >=3.0g/ of the compound steelslag powder as additive of obtained morning strong high-performance
cm3, specific surface area >=420m2/ Kg, sulfur trioxide≤2.0%, loss on ignition≤1.5%, chloride ion content≤0.03%, moisture content≤
0.5%th, activity index 7 days >=80%, 28 days >=102%, fluidity ratio >=103%；
Wherein, the ratio in the compound steelslag powder as additive of the morning strong high-performance shared by breeze is 45%, pretreated steel-making slag powder
Shared ratio is 55%；
Fineness D90≤29 μm of the breeze, chloride ion content≤0.03%, sulfur trioxide content≤4.0%, moisture content≤
0.5%th, activity index 7 days >=75%, 28 days >=95%, fluidity ratio >=95%；
Specific surface area >=the 400m of the pretreated steel-making slag powder2/ Kg, chloride ion content≤0.03%, moisture content≤0.5%,
Activity index 7 days >=65%, 28 days >=80%, fluidity ratio >=90%；
The chemical composition and its mass percent of the pretreated steel-making slag powder is respectively CaO：42%、SiO2：11.3%、
AL2O3：2.26%、MgO：10.5%、MnO：2. 5%、P2O5：2.3%、Fe2O3：12%、MFe：0.9%、FeO：16.2%、S2O3：
0.04%.
Described in the present embodiment, compounding flow process is：The breeze is transported in breeze storage vault, breeze storage vault bottom is provided with
Sealing screw gate and duplex tube helix feeding machine feeding, then carry out batching by rotor weigher, and breeze enters powder material
Batch mixer, while pretreated steel-making slag powder is transported to steel-making slag powder storage vault, steel-making slag powder storage vault bottom is provided with sealing screw lock
Door and duplex tube helix feeding machine feeding, then carry out batching by rotor weigher, steel-making slag powder enter powder material mixer with
Breeze is mixed, and after the mixed composite powder of dust-precipitator is through ball mill ball milling 24h, the compound slag of early strong high-performance is obtained
Powder as additive, the compound steelslag powder as additive of morning strong high-performance are delivered to warehouse for finished product through bucket elevator, conveying worm and enter
Row storage.
The early strong high-performance of the present embodiment is combined application of the steelslag powder as additive in concrete batching, the compound steel-making slag powder
Admixture makes the total amount of compound steelslag powder as additive and breeze in concrete batching etc. the cement of the replacement 15～30% of quality
No more than concrete batching binder total amount 30%.
Embodiment 3
The early strong high-performance of the present embodiment is combined application of the steelslag powder as additive in concrete batching, and the compound steel-making slag powder is blended
Material mixes the total amount no more than preparation of compound steelslag powder as additive and breeze in concrete batching etc. the replacement breeze of quality
The 30% of solidifying soil binder total amount.Ratio in the present embodiment in the compound steelslag powder as additive of early strong high-performance shared by breeze is
70%th, the ratio shared by pretreated steel-making slag powder is 30%；Remaining technical scheme is with embodiment 2.
Although above-described embodiment has made specific descriptions to the present invention, for one of ordinary skill in the art comes
Say, it is understood that can be modified based on present disclosure within the spirit and scope without departing from the present invention
Or improve, these modification and improvement are all within the spirit and scope of the present invention.
Claims (7)
1. a kind of strong high-performance of morning is combined steelslag powder as additive, it is characterised in that the admixture includes breeze and raw steel ground-slag, first
First, the raw steel ground-slag is pre-processed, then, is compounded by the breeze and through pretreated steel-making slag powder, made
The compound steelslag powder as additive of early strong high-performance, the density >=3.0g/ of the compound steelslag powder as additive of obtained morning strong high-performance
cm3, specific surface area >=420m2/ Kg, sulfur trioxide≤2.0%, loss on ignition≤1.5%, chloride ion content≤0.03%, moisture content≤
0.5%th, activity index 7 days >=80%, 28 days >=102%, fluidity ratio >=103%；
Wherein, the ratio in the compound steelslag powder as additive of the morning strong high-performance shared by breeze is 30%-70%, pretreated steel
Ratio shared by ground-slag is 30%-70%；
Fineness D90≤29 μm of the breeze, chloride ion content≤0.03%, sulfur trioxide content≤4.0%, moisture content≤
0.5%th, activity index 7 days >=75%, 28 days >=95%, fluidity ratio >=95%；
Specific surface area >=the 400m of the pretreated steel-making slag powder2/ Kg, chloride ion content≤0.03%, moisture content≤0.5%, work
Sex index 7 days >=65%, 28 days >=80%, fluidity ratio >=90%；
The chemical composition and its mass percent of the pretreated steel-making slag powder is respectively CaO：42-45%、SiO2：9.8-
11.3%、AL2O3：1.9-2.6%、MgO：9-10.5%、MnO：2.1-2.65%、P2O5：2.1-2.3%、Fe2O3：11.5-13.3%、
MFe：0.85-0.98%、FeO：14.5-16.2%、S2O3：0.25-0.04%.
2. morning according to claim 1 strong high-performance is combined steelslag powder as additive, it is characterised in that the compounding flow process
For：The breeze is transported in breeze storage vault, breeze storage vault bottom is provided with sealing screw gate and duplex tube helix feeding machine
Feeding, then carries out batching by rotor weigher, and breeze enters powder material mixer, while by pretreated steel-making slag powder
Steel-making slag powder storage vault is transported to, steel-making slag powder storage vault bottom is provided with sealing screw gate and duplex tube helix feeding machine feeding, Ran Houtong
Crossing rotor weigher carries out batching, enters powder material mixer through dust-precipitator steel-making slag powder and is mixed with breeze, after mixing
Composite powder through ball mill ball milling 24h after, be obtained the compound steelslag powder as additive of early strong high-performance, morning strong high-performance clad steel
Ground-slag admixture is delivered to warehouse for finished product and is stored through bucket elevator, conveying worm.
3. the early strong high-performance described in a kind of claim 1 is combined application of the steelslag powder as additive in concrete batching, and which is special
Levy and be, when volume of the compound steelslag powder as additive in concrete is 20%, in C30～C60 levels are matched somebody with somebody, be combined slag
Powder concrete intensity is combined steel-making slag powder coagulation higher than precious field S95 Concrete With Ground Slag intensity in the case where slump control is consistent
Native strength ratio treasured field Concrete With Ground Slag intensity is high by 2%～3%.
4. compound application of the steelslag powder as additive in concrete batching of morning according to claim 3 strong high-performance, which is special
Levy and be, when the volume of concrete is 20%, the clad steel slag powder concrete 1d contract with dry rate is pure water to the compound steel-making slag powder
The 50%～60% of mud normal concrete, 7d contract with dry rate for striaght cement normal concrete 70%～80%.
5. compound application of the steelslag powder as additive in concrete batching of morning according to claim 3 strong high-performance, which is special
Levy and be, chlorion electric flux is striaght cement normal concrete 75%～85% in the clad steel slag powder concrete, and wearability is
Striaght cement normal concrete 200%～250%.
6. the early strong high-performance described in a kind of claim 1 is combined application of the steelslag powder as additive in concrete batching, and which is special
Levy and be, the compound steelslag powder as additive makes clad steel in concrete batching etc. the cement of the replacement 15～30% of quality
The total amount of ground-slag admixture and breeze is not more than the 30% of concrete batching binder total amount.
7. the early strong high-performance described in a kind of claim 1 is combined application of the steelslag powder as additive in concrete batching, and which is special
Levy and be, the compound steelslag powder as additive makes compound steelslag powder as additive in concrete batching etc. the replacement breeze of quality
It is not more than the 30% of concrete batching binder total amount with the total amount of breeze.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107010860A (en) * | 2017-04-07 | 2017-08-04 | 中交武汉港湾工程设计研究院有限公司 | Ultra-high performance concrete admixture and preparation method thereof |
| CN110282898A (en) * | 2019-07-25 | 2019-09-27 | 武汉武新新型建材股份有限公司 | High-performance mineral admixture and its application in concrete |
| CN111302691A (en) * | 2020-03-06 | 2020-06-19 | 武汉理工大学 | Steel slag powder-ferromanganese slag powder composite admixture and preparation process thereof |
| CN113213797A (en) * | 2021-04-09 | 2021-08-06 | 华南理工大学 | Steel slag and slag composite admixture and preparation method and application thereof |
| CN115093153A (en) * | 2022-07-04 | 2022-09-23 | 盐城市鼎力新材料有限公司 | Early-strength composite slag admixture and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107010860A (en) * | 2017-04-07 | 2017-08-04 | 中交武汉港湾工程设计研究院有限公司 | Ultra-high performance concrete admixture and preparation method thereof |
| CN107010860B (en) * | 2017-04-07 | 2019-06-18 | 中交武汉港湾工程设计研究院有限公司 | Ultra-high performance concrete admixture and preparation method thereof |
| CN110282898A (en) * | 2019-07-25 | 2019-09-27 | 武汉武新新型建材股份有限公司 | High-performance mineral admixture and its application in concrete |
| CN111302691A (en) * | 2020-03-06 | 2020-06-19 | 武汉理工大学 | Steel slag powder-ferromanganese slag powder composite admixture and preparation process thereof |
| CN113213797A (en) * | 2021-04-09 | 2021-08-06 | 华南理工大学 | Steel slag and slag composite admixture and preparation method and application thereof |
| CN115093153A (en) * | 2022-07-04 | 2022-09-23 | 盐城市鼎力新材料有限公司 | Early-strength composite slag admixture and preparation method thereof |
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