CN106316179A - High-environment-friendliness concrete aggregate and preparation method thereof - Google Patents
High-environment-friendliness concrete aggregate and preparation method thereof Download PDFInfo
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- CN106316179A CN106316179A CN201610701938.5A CN201610701938A CN106316179A CN 106316179 A CN106316179 A CN 106316179A CN 201610701938 A CN201610701938 A CN 201610701938A CN 106316179 A CN106316179 A CN 106316179A
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- slag
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- kieselguhr
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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
-
- 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
- C04B18/02—Agglomerated materials, e.g. artificial aggregates
- C04B18/027—Lightweight materials
-
- 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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/023—Chemical treatment
-
- 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)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Processing Of Solid Wastes (AREA)
- Catalysts (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention relates to a high-environment-friendliness concrete aggregate which is prepared from the following raw materials in parts by weight: 100-140 parts of coal gangue detritus, 40-60 parts of casting waste sand, 10-30 parts of nickel slag, 20-40 parts of regenerated diatomite detritus, 3-7 parts of conjugate fibers and 5-9 parts of 0.5 mol/L sodium hydroxide solution. The regenerated diatomite detritus is prepared from the following components in parts by weight: 40-60 parts of pulpous waste diatomite, 20-30 parts of modified steel slag micropowder, 6-10 parts of surface modifier and 0.04-0.06 part of foaming agent. The modified steel slag micropowder is prepared from steel slag and sodium metaborate which accounts for 1/10-1-2 of the steel slag. The method detects a direction for large-scale application of coal gangue, casting waste sand, nickel slag, steel slag and waste diatomite, changes wastes into valuable substances, reduces the environmental pollution and land occupation caused by solidified wastes, further utilizes the resources, and implements energy saving and environmental protection. The concrete aggregate has the advantages of high density, low water absorptivity, high strength, low powdering tendency, favorable fire resistance, high weather resistance and wide applicability, and is suitable for popularization.
Description
Technical field
The present invention relates to building material technical field, be specifically related to a kind of high-environmental aggregate and preparation method thereof.
Background technology
Solidification garbage, such as gangue, cast waste sand, nickel slag, slag, discarded kieselguhr etc., government puts into greatly every year
Amount fund to its carry out buried, burn, the valuable land resource of buried serious waste, and the sulfide burning generation enters air
Ozone can be destroyed, and the smog produced can cause the environmental pollutions such as haze, therefore gets up to have very by solidification waste utilization
Important realistic meaning and value.
At present, a lot of solidification garbages have and are applied to preparing aggregate, thus realize turning waste into wealth, and reduce ring
Environment pollution, makes building cost be substantially reduced, and has huge economic benefit prospect.But utilizing solidification garbage to prepare coagulation
Soil aggregate time due to selection improper, the factors such as grating is unreasonable, preparation method is improper, cause prepared aggregate relatively sky
So aggregate compare have that density is little, water absorption rate is high, intensity is low, easy efflorescence, fire protecting performance weatherability poor, ageing-resistant is low and uses
Time aggregate the problem such as easily disperse.Thus cause the aggregate scope of application utilizing solidification garbage to prepare little, it is difficult to promote
Etc. problem.
Summary of the invention
In order to solve to utilize the solidification aggregate prepared of garbage to exist, density is little, water absorption rate is big, intensity is low, Yi Fen
Change, the problem easily dispersed of aggregate time fire protecting performance weatherability poor, ageing-resistant is low and uses, it is an object of the invention to provide one
High-environmental aggregate and preparation method thereof, the aggregate density of the present invention is big, water absorption rate is low, intensity is high, be difficult to powder
Change, fire protecting performance weatherability good, ageing-resistant height, and during use, aggregate is difficult to disperse, applied widely, it is suitable for promoting.
In order to solve above-mentioned technical problem, the technical solution adopted in the present invention is: a kind of high-environmental aggregate, institute
State aggregate to be made up of following raw material according to parts by weight: 100-140 part gangue fragment, 40-60 part cast waste sand,
10-30 part nickel slag, 20-40 part regeneration kieselguhr fragment, 3-7 part conjugate fiber and 5-9 part mass concentration are 0.5mol/L's
Sodium hydroxide solution, wherein, described regeneration kieselguhr fragment is to be discarded kieselguhr, 20-by 40-60 part pulpous state according to parts by weight
30 parts of modified steel scoria micropowders, 6-10 part surface modifier and 0.04-0.06 part foaming agent are made, described modified steel scoria micropowder be by
Slag and the sodium metaborate for slag weight 1/10-1/2 are made.
Described surface modifier is the sodium hydrate solid of 3-3.5:3-3.5:2-2.5:2-2.5, half water sulfur by weight ratio
Acid calcium, potassium methyl silicate, stannum coupling agent composition.
Described conjugate fiber is made up of the fire resistance fibre that weight ratio is 3-4.5:2-2.5 and polyimide fiber.
The particle diameter of described gangue fragment is 4-16mm, and the particle diameter of described regeneration kieselguhr fragment is 4-16mm, described casting
The particle diameter making antiquated sand is 2-3mm, and the particle diameter of described nickel slag is 0.074-1 mm.
The preparation method of described a kind of high-environmental aggregate, comprises the following steps:
Step one, weigh according to above-mentioned parts by weight choose gangue fragment, cast waste sand, nickel slag, pulpous state discard kieselguhr,
Slag, sodium metaborate, surface modifier, foaming agent, conjugate fiber and sodium hydroxide solution, as raw material for standby；
Step 2, from standby raw material, take slag and sodium metaborate, at 1250-1450 DEG C after slag and sodium metaborate being mixed
Lower calcining 35min, then cools to 1000-1200 DEG C and is incubated 2-4h, obtaining slag specimen, slag specimen being put into chilling in water, makes slag
Sample is quickly cooled to room temperature by 1000-1200 DEG C, is then 600m by slag specimen grinding to specific surface area2/ kg, obtains modified steel scoria
Micropowder, standby；
Step 3, from standby raw material, take cast waste sand, sodium hydroxide solution, gangue fragment and nickel slag, in cast waste sand
Add sodium hydroxide solution stirring 10min, be added thereto to gangue fragment and nickel slag the most successively, make after stirring 30min
Compound, standby；
Step 4, take from standby raw material pulpous state discard kieselguhr, surface modifier and foaming agent and take step 2 prepare change
Property slag micro powder, surface modifier adds pulpous state discards mixing and stirring in kieselguhr, and is heated to 800-820 DEG C, protect
Make mixing slurry after holding this temperature 3h, then add foaming agent and modified steel scoria micropowder in mixing slurry, after stirring, deliver to spray
Injection pressure be 0.3-0.5MPa spray gun in and by lance ejection to material pond in, to be solidified after formation regenerate kieselguhr fragment,
Standby；
Step 5, take from standby raw material conjugate fiber and take step 3 prepare compound and step 4 prepare regeneration
Kieselguhr fragment, by conjugate fiber, compound and regeneration kieselguhr fragment mix and blend 15min, is subsequently placed in natural conditions
Lower tiling is dried, until its weight is constant, i.e. prepares high-environmental aggregate.
Compared with prior art, the method have the advantages that
Find the direction of large-scale application for gangue, cast waste sand, nickel slag, slag and discarded kieselguhr, turn waste into wealth, reduce
Solidification garbage, to the pollution of environment with to appropriation of land, makes resource obtain further with, energy-conserving and environment-protective.The present invention's is mixed
Aggregate density is big, water absorption rate is low, intensity is high for solidifying soil, be not pulverized easily, fire protecting performance weatherability good, ageing-resistant is high, and the process of use
Middle aggregate is difficult to disperse, applied widely, is suitable for promoting.
By adding sodium hydroxide solution in cast waste sand in preparation method of the present invention so that cast waste sand contains
The a large amount of sodium silicate having are dissolved in sodium hydroxide solution, and gangue fragment is played activation by the waterglass of formation, makes bastard coal
Stone fragment needs the temperature of preheating to reduce, and then reduces the temperature that aggregate needs to preheat, and saves construction in later period cost.
The present invention is by modified for the slag sodium metaborate slag micro powder that obtains, then by this slag micro powder and foaming agent and change
Pulpous state after property is discarded kieselguhr and is together made regeneration kieselguhr fragment, and the regeneration kieselguhr fragment intensity obtained is high, water absorption rate
It is substantially reduced, is not pulverized easily.
In the present invention, nickel slag is coated with by the sodium hydroxide in sodium hydroxide solution so that nickel solid impurity particle surfacing light
Sliding, more concrete dynamic modulus can be filled, so that forming embedded squeezing between nickel slag and gangue fragment, recycling cast waste sand kieselguhr fragment
Form, improves the internal friction resistance between particles of aggregates and lock knot power, increases the density of aggregate, and then improve the resistance to of aggregate
Aging, weatherability, improve the service life of aggregate simultaneously and increase the range of aggregate.
Conjugate fiber has carried out effective suppression to the aggregate problem of dispersing, and it is fire-retardant anti-that the aggregate of preparation is had
Fire performance.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is further elaborated, protection scope of the present invention be not limited to
Lower embodiment.Implement the process of the present invention, condition, reagent etc., outside the lower content mentioned specially, be the general of this area
All over knowledge and common knowledge, the present invention is not particularly limited content.
Embodiment 1
A kind of high-environmental aggregate, described aggregate is made up of following raw material according to parts by weight: 100 parts of bastard coals
Stone fragment, 40 parts of cast waste sands, 10 parts of nickel slags, 20 parts of regeneration kieselguhr fragments, 3 parts of conjugate fibers and 5 parts of mass concentrations are
The sodium hydroxide solution of 0.5mol/L, wherein, described regeneration kieselguhr fragment is to be discarded silicon by 40 parts of pulpous states according to parts by weight
Diatomaceous earth, 20 parts of modified steel scoria micropowders, 6 parts of surface modifiers and 0.04 part of foaming agent are made, and described modified steel scoria micropowder is by steel
Slag and the sodium metaborate for slag weight 1/10 are made.
Described surface modifier is the sodium hydrate solid of 3:3:2.5:2.5, half-H 2 O calcium sulphate, methane-siliconic acid by weight ratio
Potassium, stannum coupling agent form.
Described conjugate fiber is made up of the fire resistance fibre that weight ratio is 3:2.5 and polyimide fiber.
The particle diameter of described gangue fragment is 4mm, and the particle diameter of described regeneration kieselguhr fragment is 4mm, described cast waste sand
Particle diameter be 2mm, the particle diameter of described nickel slag is 0.074mm.
The preparation method of described a kind of high-environmental aggregate, comprises the following steps:
Step one, weigh according to above-mentioned parts by weight choose gangue fragment, cast waste sand, nickel slag, pulpous state discard kieselguhr,
Slag, sodium metaborate, surface modifier, foaming agent, conjugate fiber and sodium hydroxide solution, as raw material for standby；
Step 2, from standby raw material, take slag and sodium metaborate, forge at 1250 DEG C after slag and sodium metaborate are mixed
Burn 35min, then cool to 1000 DEG C and be incubated 2h, obtaining slag specimen, slag specimen is put into chilling in water, making slag specimen fast by 1000 DEG C
Speed is cooled to room temperature, is then 600m by slag specimen grinding to specific surface area2/ kg, obtains modified steel scoria micropowder, standby；
Step 3, from standby raw material, take cast waste sand, sodium hydroxide solution, gangue fragment and nickel slag, in cast waste sand
Add sodium hydroxide solution stirring 10min, be added thereto to gangue fragment and nickel slag the most successively, make after stirring 30min
Compound, standby；
Step 4, take from standby raw material pulpous state discard kieselguhr, surface modifier and foaming agent and take step 2 prepare change
Property slag micro powder, surface modifier adds pulpous state discards mixing and stirring in kieselguhr, and is heated to 800 DEG C, keep should
Make mixing slurry after temperature 3h, then add foaming agent and modified steel scoria micropowder in mixing slurry, after stirring, deliver to injection pressure
Power be 0.3MPa spray gun in and by lance ejection to material pond in, to be solidified after formation regenerate kieselguhr fragment, standby；
Step 5, take from standby raw material conjugate fiber and take step 3 prepare compound and step 4 prepare regeneration
Kieselguhr fragment, by conjugate fiber, compound and regeneration kieselguhr fragment mix and blend 15min, is subsequently placed in natural conditions
Lower tiling is dried, until its weight is constant, i.e. prepares high-environmental aggregate.
Embodiment 2
A kind of high-environmental aggregate, described aggregate is made up of following raw material according to parts by weight: 120 parts of bastard coals
Stone fragment, 50 parts of cast waste sands, 20 parts of nickel slags, 30 parts of regeneration kieselguhr fragments, 5 parts of conjugate fibers and 7 parts of mass concentrations are
The sodium hydroxide solution of 0.5mol/L, wherein, described regeneration kieselguhr fragment is to be discarded silicon by 50 parts of pulpous states according to parts by weight
Diatomaceous earth, 25 parts of modified steel scoria micropowders, 8 parts of surface modifiers and 0.05 part of foaming agent are made, and described modified steel scoria micropowder is by steel
Slag and the sodium metaborate for slag weight 3/10 are made.
Described surface modifier is the sodium hydrate solid of 3.5:3.5:2:2, half-H 2 O calcium sulphate, methane-siliconic acid by weight ratio
Potassium, stannum coupling agent form.
Described conjugate fiber is made up of the fire resistance fibre that weight ratio is 3.5:2 and polyimide fiber.
The particle diameter of described gangue fragment is 10mm, and the particle diameter of described regeneration kieselguhr fragment is 10mm, and described casting is given up
The particle diameter of sand is 2mm, and the particle diameter of described nickel slag is 0.5mm.
The preparation method of described a kind of high-environmental aggregate, comprises the following steps:
Step one, weigh according to above-mentioned parts by weight choose gangue fragment, cast waste sand, nickel slag, pulpous state discard kieselguhr,
Slag, sodium metaborate, surface modifier, foaming agent, conjugate fiber and sodium hydroxide solution, as raw material for standby；
Step 2, from standby raw material, take slag and sodium metaborate, forge at 1350 DEG C after slag and sodium metaborate are mixed
Burn 35min, then cool to 1100 DEG C and be incubated 3h, obtaining slag specimen, slag specimen is put into chilling in water, making slag specimen fast by 1100 DEG C
Speed is cooled to room temperature, is then 600m by slag specimen grinding to specific surface area2/ kg, obtains modified steel scoria micropowder, standby；
Step 3, from standby raw material, take cast waste sand, sodium hydroxide solution, gangue fragment and nickel slag, in cast waste sand
Add sodium hydroxide solution stirring 10min, be added thereto to gangue fragment and nickel slag the most successively, make after stirring 30min
Compound, standby；
Step 4, take from standby raw material pulpous state discard kieselguhr, surface modifier and foaming agent and take step 2 prepare change
Property slag micro powder, surface modifier adds pulpous state discards mixing and stirring in kieselguhr, and is heated to 810 DEG C, keep should
Make mixing slurry after temperature 3h, then add foaming agent and modified steel scoria micropowder in mixing slurry, after stirring, deliver to injection pressure
Power be 0.4MPa spray gun in and by lance ejection to material pond in, to be solidified after formation regenerate kieselguhr fragment, standby；
Step 5, take from standby raw material conjugate fiber and take step 3 prepare compound and step 4 prepare regeneration
Kieselguhr fragment, by conjugate fiber, compound and regeneration kieselguhr fragment mix and blend 15min, is subsequently placed in natural conditions
Lower tiling is dried, until its weight is constant, i.e. prepares high-environmental aggregate.
Embodiment 3
A kind of high-environmental aggregate, described aggregate is made up of following raw material according to parts by weight: 140 parts of bastard coals
Stone fragment, 60 parts of cast waste sands, 30 parts of nickel slags, 40 parts of regeneration kieselguhr fragments, 7 parts of conjugate fibers and 9 parts of mass concentrations are
The sodium hydroxide solution of 0.5mol/L, wherein, described regeneration kieselguhr fragment is to be discarded silicon by 60 parts of pulpous states according to parts by weight
Diatomaceous earth, 30 parts of modified steel scoria micropowders, 10 parts of surface modifiers and 0.06 part of foaming agent are made, and described modified steel scoria micropowder is by steel
Slag and the sodium metaborate for slag weight 1/2 are made.
Described surface modifier is the sodium hydrate solid of 3:3.5:2:2.5, half-H 2 O calcium sulphate, methane-siliconic acid by weight ratio
Potassium, stannum coupling agent form.
Described conjugate fiber is made up of the fire resistance fibre that weight ratio is 4.5:2 and polyimide fiber.
The particle diameter of described gangue fragment is 16mm, and the particle diameter of described regeneration kieselguhr fragment is 16mm, and described casting is given up
The particle diameter of sand is 3mm, and the particle diameter of described nickel slag is 1 mm.
The preparation method of described a kind of high-environmental aggregate, comprises the following steps:
Step one, weigh according to above-mentioned parts by weight choose gangue fragment, cast waste sand, nickel slag, pulpous state discard kieselguhr,
Slag, sodium metaborate, surface modifier, foaming agent, conjugate fiber and sodium hydroxide solution, as raw material for standby；
Step 2, from standby raw material, take slag and sodium metaborate, forge at 1450 DEG C after slag and sodium metaborate are mixed
Burn 35min, then cool to 1200 DEG C and be incubated 4h, obtaining slag specimen, slag specimen is put into chilling in water, making slag specimen fast by 1200 DEG C
Speed is cooled to room temperature, is then 600m by slag specimen grinding to specific surface area2/ kg, obtains modified steel scoria micropowder, standby；
Step 3, from standby raw material, take cast waste sand, sodium hydroxide solution, gangue fragment and nickel slag, in cast waste sand
Add sodium hydroxide solution stirring 10min, be added thereto to gangue fragment and nickel slag the most successively, make after stirring 30min
Compound, standby；
Step 4, take from standby raw material pulpous state discard kieselguhr, surface modifier and foaming agent and take step 2 prepare change
Property slag micro powder, surface modifier adds pulpous state discards mixing and stirring in kieselguhr, and is heated to 820 DEG C, keep should
Make mixing slurry after temperature 3h, then add foaming agent and modified steel scoria micropowder in mixing slurry, after stirring, deliver to injection pressure
Power be 0.5MPa spray gun in and by lance ejection to material pond in, to be solidified after formation regenerate kieselguhr fragment, standby；
Step 5, take from standby raw material conjugate fiber and take step 3 prepare compound and step 4 prepare regeneration
Kieselguhr fragment, by conjugate fiber, compound and regeneration kieselguhr fragment mix and blend 15min, is subsequently placed in natural conditions
Lower tiling is dried, until its weight is constant, i.e. prepares high-environmental aggregate.
Claims (5)
1. a high-environmental aggregate, it is characterised in that: described aggregate is by following raw material according to parts by weight
Make: 100-140 part gangue fragment, 40-60 part cast waste sand, 10-30 part nickel slag, 20-40 part regeneration kieselguhr fragment, 3-
7 parts of conjugate fibers and 5-9 part mass concentration are the sodium hydroxide solution of 0.5mol/L, wherein, and described regeneration kieselguhr fragment
According to parts by weight be by 40-60 part pulpous state discard kieselguhr, 20-30 part modified steel scoria micropowder, 6-10 part surface modifier and
0.04-0.06 part foaming agent is made, and described modified steel scoria micropowder is by slag with for the sodium metaborate of slag weight 1/10-1/2
Make.
2. a kind of high-environmental aggregate as claimed in claim 1, it is characterised in that: described surface modifier is by weight ratio
For the sodium hydrate solid of 3-3.5:3-3.5:2-2.5:2-2.5, half-H 2 O calcium sulphate, potassium methyl silicate, stannum coupling agent composition.
3. a kind of high-environmental aggregate as claimed in claim 1, it is characterised in that: described conjugate fiber by weight ratio is
3-4.5:2-2.5 fire resistance fibre and polyimide fiber composition.
4. a kind of high-environmental aggregate as claimed in claim 1, it is characterised in that: the particle diameter of described gangue fragment is
4-16mm, the particle diameter of described regeneration kieselguhr fragment is 4-16mm, and the particle diameter of described cast waste sand is 2-3mm, described nickel slag
Particle diameter is 0.074-1 mm.
The preparation method of a kind of high-environmental aggregate the most as claimed in claim 1, it is characterised in that comprise the following steps:
Step one, according to described in claim 1 parts by weight weigh choose gangue fragment, cast waste sand, nickel slag, pulpous state give up
Abandon kieselguhr, slag, sodium metaborate, surface modifier, foaming agent, conjugate fiber and sodium hydroxide solution, standby as raw material
With；
Step 2, from standby raw material, take slag and sodium metaborate, at 1250-1450 DEG C after slag and sodium metaborate being mixed
Lower calcining 35min, then cools to 1000-1200 DEG C and is incubated 2-4h, obtaining slag specimen, slag specimen being put into chilling in water, makes slag
Sample is quickly cooled to room temperature by 1000-1200 DEG C, is then 600m by slag specimen grinding to specific surface area2/ kg, obtains modified steel scoria
Micropowder, standby；
Step 3, from standby raw material, take cast waste sand, sodium hydroxide solution, gangue fragment and nickel slag, in cast waste sand
Add sodium hydroxide solution stirring 10min, be added thereto to gangue fragment and nickel slag the most successively, make after stirring 30min
Compound, standby；
Step 4, take from standby raw material pulpous state discard kieselguhr, surface modifier and foaming agent and take step 2 prepare change
Property slag micro powder, surface modifier adds pulpous state discards mixing and stirring in kieselguhr, and is heated to 800-820 DEG C, protect
Make mixing slurry after holding this temperature 3h, then add foaming agent and modified steel scoria micropowder in mixing slurry, after stirring, deliver to spray
Injection pressure be 0.3-0.5MPa spray gun in and by lance ejection to material pond in, to be solidified after formation regenerate kieselguhr fragment,
Standby；
Step 5, take from standby raw material conjugate fiber and take step 3 prepare compound and step 4 prepare regeneration
Kieselguhr fragment, by conjugate fiber, compound and regeneration kieselguhr fragment mix and blend 15min, is subsequently placed in natural conditions
Lower tiling is dried, until its weight is constant, i.e. prepares high-environmental aggregate.
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| CN110128060A (en) * | 2019-04-28 | 2019-08-16 | 南通昆腾新材料科技有限公司 | A kind of porous light type concrete and preparation method thereof |
| CN110183167A (en) * | 2019-04-28 | 2019-08-30 | 南通昆腾新材料科技有限公司 | A kind of high-density concrete and preparation method thereof of doping metals aggregate |
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| CN104326709A (en) * | 2014-09-21 | 2015-02-04 | 山东农业大学 | New frost resistant vegetation concrete using gangue as crude aggregate |
| CN105174834A (en) * | 2015-08-25 | 2015-12-23 | 西安建筑科技大学 | Coal-gangue lightweight aggregate concrete |
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| CN104072028A (en) * | 2013-03-25 | 2014-10-01 | 中国矿业大学 | Method for preparing concrete from industrial waste residue fine aggregate |
| CN104326709A (en) * | 2014-09-21 | 2015-02-04 | 山东农业大学 | New frost resistant vegetation concrete using gangue as crude aggregate |
| CN105174834A (en) * | 2015-08-25 | 2015-12-23 | 西安建筑科技大学 | Coal-gangue lightweight aggregate concrete |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110128060A (en) * | 2019-04-28 | 2019-08-16 | 南通昆腾新材料科技有限公司 | A kind of porous light type concrete and preparation method thereof |
| CN110183167A (en) * | 2019-04-28 | 2019-08-30 | 南通昆腾新材料科技有限公司 | A kind of high-density concrete and preparation method thereof of doping metals aggregate |
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| CN106316179B (en) | 2019-01-01 |
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Effective date of registration: 20181112 Address after: 311108 Siwei Village, Chongxian Street, Yuhang District, Hangzhou City, Zhejiang Province Applicant after: Hangzhou Shenhua Concrete Co., Ltd. Address before: 461200 Peijiacun 405, Malan Town, Yanling County, Xuchang City, Henan Province Applicant before: Zhang Debo |
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