CN106316207B - A kind of aggregate and preparation method thereof using gangue preparation - Google Patents
A kind of aggregate and preparation method thereof using gangue preparation Download PDFInfo
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- CN106316207B CN106316207B CN201610701937.0A CN201610701937A CN106316207B CN 106316207 B CN106316207 B CN 106316207B CN 201610701937 A CN201610701937 A CN 201610701937A CN 106316207 B CN106316207 B CN 106316207B
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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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- 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
- C04B18/0409—Waste from the purification of bauxite, e.g. red mud
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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
- 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
- C04B18/0481—Other specific industrial waste materials not provided for elsewhere in C04B18/00
-
- 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
- C04B18/12—Waste materials; Refuse from quarries, mining or the like
-
- 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
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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
- 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
- C04B18/144—Slags from the production of specific metals other than iron or of specific alloys, e.g. ferrochrome slags
-
- 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
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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
- 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
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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
- 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
- C04B20/10—Coating or impregnating
- C04B20/1055—Coating or impregnating with inorganic materials
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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)
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- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
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- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
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Abstract
The present invention relates to a kind of aggregates and preparation method thereof using gangue preparation, the aggregate is prepared from the following raw materials according to parts by weight: 110-150 parts of gangue fragments, 50-70 parts of cast waste sands, 10-20 parts of copper sludges, 10-20 parts of red muds, 50-70 parts of regeneration diatomite fragments, 5-9 parts of additives, the sodium hydroxide solution that 6-10 parts of calcium hydroxides and 5-9 parts of mass concentrations are 0.5mol/L, wherein, the regeneration diatomite fragment is to discard diatomite by 40-60 parts of pulpous states according to parts by weight, 20-30 parts of modified steel scoria micro mists, 6-11 parts of surface modifiers and 0.04-0.06 parts of foaming agents are made, the modified steel scoria micro mist is by steel slag and for the kodalk system of steel slag weight 1/10-1/2 At.The present invention is the direction that gangue, cast waste sand, copper sludge, red mud, steel slag and discarded diatomite find large-scale application, is turned waste into wealth, and reduction solidifies waste to the pollution of environment and to appropriation of land, utilizes resource further, energy conservation and environmental protection.
Description
Technical field
The present invention relates to building material technical fields, and in particular to it is a kind of using gangue preparation aggregate and its
Preparation method.
Background technique
Solidify waste, such as gangue, cast waste sand, copper sludge, red mud, steel slag, discarded diatomite, government throws every year
Enter substantial contribution it is carried out it is buried, burn, the valuable land resource of buried serious waste, and burn the sulfide generated and enter
Atmosphere can destroy ozone, and the smog generated will cause the environmental pollutions such as haze, therefore solidification waste utilization is got up to have
Very important realistic meaning and value.
Currently, much solidification waste is applied to prepare aggregate, so that realizing turns waste into wealth, ring is reduced
Border pollution, substantially reduces building cost, has huge economic benefit prospect.However coagulation is being prepared using solidification waste
Since selection is improper when native aggregate, the factors such as gradation is unreasonable, preparation method is improper cause prepared aggregate compared with day
Right aggregate is low compared to there are intensity, density is small, water absorption rate is high, easy dusting, the problems such as ageing-resistant weatherability is low, service life is low.
And it is not only easily dispersed when in use using aggregate made of gangue.Problem above, which also results in, utilizes solidification waste
The aggregate scope of application of preparation is small, it is difficult to the problem of promoting.
Summary of the invention
In order to solve, using the aggregate for solidifying waste preparation, that there are intensity is low, density is small, water absorption rate is big, Yi Fen
Change, the problem that ageing-resistant weatherability is low, service life is low and using when aggregate easily disperse the problem of, the purpose of the present invention is mention
For a kind of aggregate and preparation method thereof using gangue preparation, aggregate intensity of the invention is high, density is big,
Water absorption rate is low, be not pulverized easily, ageing-resistant weatherability is higher, and aggregate is not easy to disperse in use process, applied widely, is suitble to push away
Extensively.
In order to solve the above-mentioned technical problem, the technical scheme adopted by the invention is that: it is a kind of to utilize the mixed of gangue preparation
Solidifying soil aggregate, the aggregate are prepared from the following raw materials according to parts by weight: 110-150 parts of gangue fragments, 50-70
Part cast waste sand, 10-20 parts of copper sludges, 10-20 parts of red muds, 50-70 parts of regeneration diatomite fragments, 5-9 parts of additives, 6-10 parts of hydrogen
The sodium hydroxide solution that calcium oxide and 5-9 parts of mass concentrations are 0.5mol/L, wherein the regeneration diatomite fragment is according to weight
Amount number is to discard diatomite, 20-30 parts of modified steel scoria micro mists, 6-11 parts of surface modifiers and 0.04- by 40-60 parts of pulpous states
0.06 part of foaming agent is made, and the modified steel scoria micro mist is made by steel slag and by the kodalk of steel slag weight 1/10-1/2.
The surface modifier by weight ratio be 3-3.5:3-3.5:2-2.5:2-2.5:3-3.5 sodium hydrate solid,
Calcium sulphate dihydrate, potassium methyl silicate, lignin coupling agent, titanate coupling agent composition.
Barium stearate, the fire resistance fibre, polyimide fiber group that the additive is 1-2:3-3.5:2-4 by weight ratio
At.
The partial size of the gangue fragment is 4-16mm, and the partial size of the regeneration diatomite fragment is 4-16mm, the casting
The partial size for making antiquated sand is 2-3mm, and the partial size of the copper sludge is 0.074-1 mm, and the partial size of the red mud is 0.074-1 mm.
A kind of preparation method of the aggregate using gangue preparation, comprising the following steps:
It gives up Step 1: being weighed according to above-mentioned parts by weight and choosing gangue fragment, cast waste sand, copper sludge, red mud, pulpous state
Diatomite, additive, surface modifier, foaming agent, calcium hydroxide, sodium hydroxide solution, steel slag and kodalk are abandoned, as
Raw material for standby；
Step 2: steel slag and kodalk are taken from spare raw material, in 1250- after steel slag and kodalk are mixed
35min is calcined at 1450 DEG C, then cool to 1000-1200 DEG C and keeps the temperature 2-4h, obtains slag specimen, slag specimen is anxious into the water
It is cold, so that slag specimen 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 micro mist, it is spare；
Step 3: taking cast waste sand, sodium hydroxide solution, gangue fragment, copper sludge, red mud and addition from standby raw material
Material is added sodium hydroxide solution into cast waste sand and stirs 10min, and gangue fragment, copper sludge, red is then successively added thereto
Mixture is made after stirring 30min in mud and additive, spare；
Step 4: taking pulpous state to discard diatomite, surface modifier and foaming agent from standby raw material and step 2 being taken to be made
Modified steel scoria micro mist, pulpous state be added in surface modifier discard in diatomite and be mixed evenly, and be heated to 800-820
DEG C, mixing slurry is made after keeping temperature 3h, then foaming agent and modified steel scoria micro mist are added into mixing slurry, send after mixing evenly
It is in the spray gun of 0.3-0.5MPa and by the way that in lance ejection to material pond, bio-diatomite is broken again for rear formation to be solidified to injection pressure
Block, it is spare；
Step 5: taking calcium hydroxide from spare raw material and taking made from mixture made from step 3 and step 4
Diatomite fragment is regenerated, 15min is mixed in calcium hydroxide, mixture and regeneration diatomite fragment, is subsequently placed in nature
Under the conditions of tile and dry, until its weight is constant, obtain the aggregate prepared using gangue.
Compared with prior art, the invention has the following advantages:
The direction of large-scale application is found for gangue, cast waste sand, copper sludge, red mud, steel slag and discarded diatomite, becomes useless
For treasured, reduction solidifies waste to the pollution of environment and to appropriation of land, utilizes resource further, energy conservation and environmental protection.
Aggregate intensity of the invention is high, be not pulverized easily, density is big, water absorption rate is low, ageing-resistant weatherability is high, and in use process
Aggregate is not easy to disperse, applied widely, is suitble to promote.
By the way that sodium hydroxide solution is added into cast waste sand in preparation method of the present invention, so that containing in cast waste sand
The a large amount of sodium metasilicate having are dissolved in sodium hydroxide solution, and the waterglass of formation plays activation to gangue fragment, make bastard coal
The temperature that stone fragment needs to preheat reduces, and thereby reduces the temperature that aggregate needs to preheat, and saves construction in later period cost.
The present invention obtains slag micro powder for steel slag kodalk is modified, then by the slag micro powder and foaming agent and changes
Property after pulpous state discard diatomite regeneration diatomite fragment be made together, surface modifier, which improves pulpous state, to be discarded diatomite and hates
Aqueous, modified steel scoria micro mist is dispersed between diatomite particle, increases regeneration diatomite fragment dense structure's property, and then make
Obtained regeneration diatomite fragment intensity is high, density is big, be not pulverized easily and water absorption rate substantially reduces.
Sodium hydroxide in the present invention in sodium hydroxide solution coats copper sludge and red mud, so that copper sludge particle and red
Mud particle surface is flat and smooth, can fill it is more porous, to make copper sludge and red mud and gangue fragment, cast waste sand again
Embedded squeezing form is formed between bio-diatomite fragment, is improved interior frictional resistance and lock knot power between particles of aggregates, is increased aggregate
Density, and then improve the resistance to ag(e)ing of aggregate, weatherability, while improving the service life of aggregate and increasing aggregate
Use scope.
The additive has not only carried out effective inhibition to the aggregate problem of dispersing, and additive is under the excitation of calcium hydroxide
Effect is lasting, and stability is more preferable.
Specific embodiment
The present invention is further elaborated combined with specific embodiments below, and protection scope of the present invention is not limited to following
Embodiment.Implement process of the invention, condition, reagent etc., is the universal of this field in addition to what is specifically mentioned below
Knowledge and common knowledge, there are no special restrictions to content by the present invention.
Embodiment 1
A kind of aggregate prepared using gangue, the aggregate is by following raw material according to parts by weight
Be made: 110 parts of gangue fragments, 50 parts of cast waste sands, 10 parts of copper sludges, 10 parts of red muds, 50 parts of regeneration diatomite fragments, 5 parts add
The sodium hydroxide solution that charging, 6 parts of calcium hydroxides and 5 parts of mass concentrations are 0.5mol/L, wherein the bio-diatomite again is broken
Block is that diatomite, 20 parts of modified steel scoria micro mists, 6 parts of surface modifiers and 0.04 part of hair are discarded by 40 parts of pulpous states according to parts by weight
Infusion is made, and the modified steel scoria micro mist is made by steel slag and by the kodalk of steel slag weight 1/10.
Sodium hydrate solid, calcium sulphate dihydrate, the methyl that the surface modifier is 3:3:2.5:2.5:3.5 by weight ratio
Potassium silicate, lignin coupling agent, titanate coupling agent composition.
The additive is made of barium stearate, fire resistance fibre, the polyimide fiber that weight ratio is 1:3.5:2.
The partial size of the gangue fragment is 4mm, and the partial size of the regeneration diatomite fragment is 4mm, the cast waste sand
Partial size be 2mm, the partial size of the copper sludge is 0.074 mm, and the partial size of the red mud is 0.074 mm.
A kind of preparation method of the aggregate using gangue preparation, comprising the following steps:
It gives up Step 1: being weighed according to above-mentioned parts by weight and choosing gangue fragment, cast waste sand, copper sludge, red mud, pulpous state
Diatomite, additive, surface modifier, foaming agent, calcium hydroxide, sodium hydroxide solution, steel slag and kodalk are abandoned, as
Raw material for standby；
Step 2: steel slag and kodalk are taken from spare raw material, at 1250 DEG C after steel slag and kodalk are mixed
Then lower calcining 35min cools to 1000 DEG C and keeps the temperature 2h, obtains slag specimen, by slag specimen chilling into the water, make slag specimen by 1000
DEG C it is quickly cooled to room temperature, is then 600m by slag specimen grinding to specific surface area2/ kg obtains modified steel scoria micro mist, spare；
Step 3: taking cast waste sand, sodium hydroxide solution, gangue fragment, copper sludge, red mud and addition from standby raw material
Material is added sodium hydroxide solution into cast waste sand and stirs 10min, and gangue fragment, copper sludge, red is then successively added thereto
Mixture is made after stirring 30min in mud and additive, spare；
Step 4: taking pulpous state to discard diatomite, surface modifier and foaming agent from standby raw material and step 2 being taken to be made
Modified steel scoria micro mist, pulpous state be added in surface modifier discard in diatomite and be mixed evenly, and be heated to 800 DEG C, protect
Mixing slurry is made after holding temperature 3h, then foaming agent and modified steel scoria micro mist are added into mixing slurry, is sent after mixing evenly to spray
Injection pressure is in the spray gun of 0.3MPa and by the way that in lance ejection to material pond, rear formation regeneration diatomite fragment to be solidified is spare；
Step 5: taking calcium hydroxide from spare raw material and taking made from mixture made from step 3 and step 4
Diatomite fragment is regenerated, 15min is mixed in calcium hydroxide, mixture and regeneration diatomite fragment, is subsequently placed in nature
Under the conditions of tile and dry, until its weight is constant, obtain the aggregate prepared using gangue.
Embodiment 2
A kind of aggregate prepared using gangue, the aggregate is by following raw material according to parts by weight
Be made: 130 parts of gangue fragments, 60 parts of cast waste sands, 15 parts of copper sludges, 15 parts of red muds, 60 parts of regeneration diatomite fragments, 7 parts add
The sodium hydroxide solution that charging, 8 parts of calcium hydroxides and 7 parts of mass concentrations are 0.5mol/L, wherein the bio-diatomite again is broken
Block is that diatomite, 25 parts of modified steel scoria micro mists, 9 parts of surface modifiers and 0.05 part of hair are discarded by 50 parts of pulpous states according to parts by weight
Infusion is made, and the modified steel scoria micro mist is made by steel slag and by the kodalk of steel slag weight 3/10.
Sodium hydrate solid, calcium sulphate dihydrate, the methyl that the surface modifier is 3.5:3.5:2:2:3.5 by weight ratio
Potassium silicate, lignin coupling agent, titanate coupling agent composition.
The additive is made of barium stearate, fire resistance fibre, the polyimide fiber that weight ratio is 2:3.5:2.
The partial size of the gangue fragment is 10mm, and the partial size of the regeneration diatomite fragment is 10mm, and the casting is useless
The partial size of sand is 2mm, and the partial size of the copper sludge is 0.5 mm, and the partial size of the red mud is 0.5 mm.
A kind of preparation method of the aggregate using gangue preparation, comprising the following steps:
It gives up Step 1: being weighed according to above-mentioned parts by weight and choosing gangue fragment, cast waste sand, copper sludge, red mud, pulpous state
Diatomite, additive, surface modifier, foaming agent, calcium hydroxide, sodium hydroxide solution, steel slag and kodalk are abandoned, as
Raw material for standby；
Step 2: steel slag and kodalk are taken from spare raw material, at 1350 DEG C after steel slag and kodalk are mixed
Then lower calcining 35min cools to 1100 DEG C and keeps the temperature 3h, obtains slag specimen, by slag specimen chilling into the water, make slag specimen by 1100
DEG C it is quickly cooled to room temperature, is then 600m by slag specimen grinding to specific surface area2/ kg obtains modified steel scoria micro mist, spare；
Step 3: taking cast waste sand, sodium hydroxide solution, gangue fragment, copper sludge, red mud and addition from standby raw material
Material is added sodium hydroxide solution into cast waste sand and stirs 10min, and gangue fragment, copper sludge, red is then successively added thereto
Mixture is made after stirring 30min in mud and additive, spare；
Step 4: taking pulpous state to discard diatomite, surface modifier and foaming agent from standby raw material and step 2 being taken to be made
Modified steel scoria micro mist, pulpous state be added in surface modifier discard in diatomite and be mixed evenly, and be heated to 810 DEG C, protect
Mixing slurry is made after holding temperature 3h, then foaming agent and modified steel scoria micro mist are added into mixing slurry, is sent after mixing evenly to spray
Injection pressure is in the spray gun of 0.4MPa and by the way that in lance ejection to material pond, rear formation regeneration diatomite fragment to be solidified is spare；
Step 5: taking calcium hydroxide from spare raw material and taking made from mixture made from step 3 and step 4
Diatomite fragment is regenerated, 15min is mixed in calcium hydroxide, mixture and regeneration diatomite fragment, is subsequently placed in nature
Under the conditions of tile and dry, until its weight is constant, obtain the aggregate prepared using gangue.
Embodiment 3
A kind of aggregate prepared using gangue, the aggregate is by following raw material according to parts by weight
Be made: 150 parts of gangue fragments, 70 parts of cast waste sands, 20 parts of copper sludges, 20 parts of red muds, 70 parts of regeneration diatomite fragments, 9 parts add
The sodium hydroxide solution that charging, 10 parts of calcium hydroxides and 9 parts of mass concentrations are 0.5mol/L, wherein the bio-diatomite again
Fragment is to discard diatomite, 30 parts of modified steel scoria micro mists, 11 parts of surface modifiers and 0.06 by 60 parts of pulpous states according to parts by weight
Part foaming agent is made, and the modified steel scoria micro mist is made by steel slag and by the kodalk of steel slag weight 1/2.
Sodium hydrate solid, the calcium sulphate dihydrate, first that the surface modifier is 3.5:3:2.5:2.5:3.5 by weight ratio
Base potassium silicate, lignin coupling agent, titanate coupling agent composition.
The additive is made of barium stearate, fire resistance fibre, the polyimide fiber that weight ratio is 1.5:3.5:4.
The partial size of the gangue fragment is 16mm, and the partial size of the regeneration diatomite fragment is 16mm, and the casting is useless
The partial size of sand is 3mm, and the partial size of the copper sludge is 1 mm, and the partial size of the red mud is 1 mm.
A kind of preparation method of the aggregate using gangue preparation, comprising the following steps:
It gives up Step 1: being weighed according to above-mentioned parts by weight and choosing gangue fragment, cast waste sand, copper sludge, red mud, pulpous state
Diatomite, additive, surface modifier, foaming agent, calcium hydroxide, sodium hydroxide solution, steel slag and kodalk are abandoned, as
Raw material for standby；
Step 2: steel slag and kodalk are taken from spare raw material, at 1450 DEG C after steel slag and kodalk are mixed
Then lower calcining 35min cools to 1200 DEG C and keeps the temperature 4h, obtains slag specimen, by slag specimen chilling into the water, make slag specimen by 1200
DEG C it is quickly cooled to room temperature, is then 600m by slag specimen grinding to specific surface area2/ kg obtains modified steel scoria micro mist, spare；
Step 3: taking cast waste sand, sodium hydroxide solution, gangue fragment, copper sludge, red mud and addition from standby raw material
Material is added sodium hydroxide solution into cast waste sand and stirs 10min, and gangue fragment, copper sludge, red is then successively added thereto
Mixture is made after stirring 30min in mud and additive, spare；
Step 4: taking pulpous state to discard diatomite, surface modifier and foaming agent from standby raw material and step 2 being taken to be made
Modified steel scoria micro mist, pulpous state be added in surface modifier discard in diatomite and be mixed evenly, and be heated to 820 DEG C, protect
Mixing slurry is made after holding temperature 3h, then foaming agent and modified steel scoria micro mist are added into mixing slurry, is sent after mixing evenly to spray
Injection pressure is in the spray gun of 0.5MPa and by the way that in lance ejection to material pond, rear formation regeneration diatomite fragment to be solidified is spare；
Step 5: taking calcium hydroxide from spare raw material and taking made from mixture made from step 3 and step 4
Diatomite fragment is regenerated, 15min is mixed in calcium hydroxide, mixture and regeneration diatomite fragment, is subsequently placed in nature
Under the conditions of tile and dry, until its weight is constant, obtain the aggregate prepared using gangue.
Claims (4)
1. a kind of aggregate prepared using gangue, it is characterised in that: the aggregate is according to parts by weight
Be prepared from the following raw materials: 110-150 parts of gangue fragments, 50-70 parts of cast waste sands, 10-20 parts of copper sludges, 10-20 parts of red muds,
50-70 parts of regeneration diatomite fragments, 5-9 parts of additives, 6-10 parts of calcium hydroxides and 5-9 parts of mass concentrations are 0.5mol/L's
Sodium hydroxide solution, wherein the regeneration diatomite fragment is to discard diatomite, 20- by 40-60 parts of pulpous states according to parts by weight
30 parts of modified steel scoria micro mists, 6-11 parts of surface modifiers and 0.04-0.06 parts of foaming agents are made, the modified steel scoria micro mist be by
It steel slag and is made of the kodalk of steel slag weight 1/10-1/2, the additive is the hard of 1-2:3-3.5:2-4 by weight ratio
Resin acid barium, fire resistance fibre, polyimide fiber composition.
2. a kind of aggregate prepared using gangue as described in claim 1, it is characterised in that: the surface is modified
Sodium hydrate solid, calcium sulphate dihydrate, the methane-siliconic acid that agent is 3-3.5:3-3.5:2-2.5:2-2.5:3-3.5 by weight ratio
Potassium, lignin coupling agent, titanate coupling agent composition.
3. a kind of aggregate prepared using gangue as described in claim 1, it is characterised in that: the gangue is broken
The partial size of block is 4-16mm, and the partial size of the regeneration diatomite fragment is 4-16mm, and the partial size of the cast waste sand is 2-3mm,
The partial size of the copper sludge is 0.074-1 mm, and the partial size of the red mud is 0.074-1 mm.
4. a kind of preparation method of aggregate using gangue preparation as described in claim 1, which is characterized in that packet
Include following steps:
Step 1: parts by weight described in accordance with the claim 1 weigh choose gangue fragment, cast waste sand, copper sludge, red mud,
Pulpous state discards diatomite, additive, surface modifier, foaming agent, calcium hydroxide, sodium hydroxide solution, steel slag and metaboric acid
Sodium, as raw material for standby；
Step 2: steel slag and kodalk are taken from spare raw material, at 1250-1450 DEG C after steel slag and kodalk are mixed
Then lower calcining 35min cools to 1000-1200 DEG C and keeps the temperature 2-4h, obtains slag specimen, by slag specimen chilling into the water, make 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
Micro mist, it is spare；
Step 3: cast waste sand, sodium hydroxide solution, gangue fragment, copper sludge, red mud and additive are taken from standby raw material,
Sodium hydroxide solution is added into cast waste sand and stirs 10min, gangue fragment, copper sludge, red mud are then successively added thereto
And additive, mixture is made after stirring 30min, it is spare；
Change made from step 2 Step 4: pulpous state is taken to discard diatomite, surface modifier and foaming agent and take from standby raw material
Property slag micro powder, pulpous state be added in surface modifier discard in diatomite and be mixed evenly, and be heated to 800-820 DEG C, protect
Mixing slurry is made after holding temperature 3h, then foaming agent and modified steel scoria micro mist are added into mixing slurry, is sent after mixing evenly to spray
Injection pressure is in the spray gun of 0.3-0.5MPa and to pass through in lance ejection to material pond, and regeneration diatomite fragment is formed after to be solidified,
It is spare；
Step 5: taking calcium hydroxide from spare raw material and taking regeneration made from mixture made from step 3 and step 4
Calcium hydroxide, mixture and regeneration diatomite fragment are mixed 15min, are subsequently placed in natural conditions by diatomite fragment
Lower tiling is dried, until its weight is constant, obtains the aggregate prepared using gangue.
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| CN109422526A (en) * | 2017-08-23 | 2019-03-05 | 滁州市南谯生辉新型建材有限公司 | A kind of sintered hollow block and its preparation process of high temperature resistant high tenacity |
| CN107939443A (en) * | 2017-12-26 | 2018-04-20 | 西安科技大学 | A kind of New Mine flame range flame proof fire dam and its construction technology |
| CN110156420A (en) * | 2019-04-28 | 2019-08-23 | 南通昆腾新材料科技有限公司 | A kind of steel cuttings mixed type strong 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 |
| CN113816638A (en) * | 2020-06-19 | 2021-12-21 | 中铁西安勘察设计研究院有限责任公司 | Coal gangue concrete corrosion inhibitor and coal gangue concrete with sulfate corrosion resistance |
| CN115259712A (en) * | 2022-08-31 | 2022-11-01 | 霖和气候科技(北京)有限公司 | Preparation method of high-solid waste base-converged carbonized baking-free lightweight aggregate |
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| CN104072028B (en) * | 2013-03-25 | 2016-06-01 | 中国矿业大学 | A kind of fine aggregate concrete batching method of industrial residue |
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