CN110372293A - A kind of preparation method of freeze proof high-intensitive aerated bricks - Google Patents
A kind of preparation method of freeze proof high-intensitive aerated bricks Download PDFInfo
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- CN110372293A CN110372293A CN201910606663.0A CN201910606663A CN110372293A CN 110372293 A CN110372293 A CN 110372293A CN 201910606663 A CN201910606663 A CN 201910606663A CN 110372293 A CN110372293 A CN 110372293A
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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
- C04B28/02—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 containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/34—Non-shrinking or non-cracking materials
- C04B2111/343—Crack resistant materials
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight materials
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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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- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention belongs to building material technical fields, and in particular to a kind of preparation method of freeze proof high-intensitive aerated bricks.The present invention is using waste red mud in aluminium metallurgy factory as raw material, the modified surface that is made of calcium carbide is modified calcium carbide particle, reduce production cost, after rock wool fibers and the dehydration coupling of trimerization silanol, the interfacial adhesion between aerated bricks mortar and fiber is improved, the fracture toughness of aerated bricks is improved, when aerated bricks are by percussion, fiber has elasticity well, enhances aerated bricks mechanical strength；Contain the metal oxides such as aluminium oxide, calcium oxide in red mud, aluminium oxide exists in red mud with crystalline fibers, not only enhance aerated bricks mechanical strength, also make pore structure in aerated bricks more stable, while after rock wool fibers and the dehydration coupling of trimerization silanol, hydrophobic silicone can be generated, improve aerated bricks infiltration energy, and ammonium perchlorate can react generation nitrogen with sodium nitrite jointly and get angry, and improve the anti-freezing property of aerated bricks, have a extensive future.
Description
Technical field
The invention belongs to building material technical fields, and in particular to a kind of preparation method of freeze proof high-intensitive aerated bricks.
Background technique
Aerated bricks are also referred to as air-entrained concrete building block, are that the air entrained concrete produced by autoclave at high temperature apparatus and process is built
Block.With siliceous material (sand, flyash and containing silicon tailings etc.) and calcareous material (lime, cement) for primary raw material, admixture is got angry
Agent (aluminium powder), the light porous silicate product made of the technical process such as stirring, casting, precuring, cutting, steam pressure, maintenance.
Building block, plate and the heat insulating products of different size can be made in it, are widely used in industry and the load-bearing of civil buildings or enclose
Protecting interstitital texture is become a kind of building that many countries widely popularize and develop by the most attention of countries in the world construction industry
Material.
Aerated bricks are a kind of lightweight, porous New Building Materials, have light capacity, high insulating efficiency is high, and sound-absorbing is good, antidetonation
The advantages that power is strong, adaptable, and processing performance is good, at low cost, environmentally protective, has become existing novel wall material now
One important component.Aerated bricks have become the leading products of building material industry at present, and country is gradually forbidden to use
Clay solid brick is gradually instead exactly air-entrained concrete building block.
Aerated bricks are the air-entrained concrete building blocks produced by autoclave at high temperature apparatus and process, can be according to local different former materials
Material, different condition carrys out amount body and makes surely, and raw material may be selected river sand, flyash, ore in sand form etc., adaptation to local conditions, and can be sharp with waste
With, it is environmental, really turn waste into wealth.But the mechanical strength of common aerated bricks need to be improved.
Aerated bricks are the air-entrained concrete building blocks produced by autoclave at high temperature apparatus and process, can be according to local different former materials
Material, different condition carrys out amount body and makes surely, and raw material may be selected river sand, quick lime, ore in sand form etc., adaptation to local conditions, and can be sharp with waste
With, it is environmental, really turn waste into wealth.But common aerated bricks are due to having more hole inside it, in addition itself
Density is not high, causes soundproof effect poor.
Aerated bricks are a kind of light porous construction materials, it is with siliceous material (sand, flyash and containing silicon tailings etc.)
With calcareous material (lime, cement) be primary raw material, add foaming agent (aluminium powder), through levigate, ingredient, casting, precuring, cutting,
The processes such as steam press maintenance and milling and manufactured light porous silicate product.Because it contains largely after getting angry inside product
Even and tiny sealed porosity, therefore named aerated bricks.It has many advantages, such as lightweight, good heat insulating and processable, can be made not
Building block, plate and the heat insulating products of same specification.
The raw material sources of aerated bricks are extensive, adaptable to carry out amount body according to local different raw material, different condition and make surely,
It may be selected river sand, flyash, ore in sand form etc., adaptation to local conditions can be environmental with waste utilization, really turns waste into wealth.Mesh
Before be used primarily in load-bearing wallings such as materials for wall in machinery plant and civil buildings, filling wall, floor and roof boarding and non-
The filling enclosure wall of load-bearing material and surrounding.
But with the development of building trade, building is higher and higher, moulding is more and more peculiar, to the items of aerated bricks
It can require all to increase, all there is certain in water-resistance and mildew resistance, flexibility for the aerated-block of prior art production
Defect, while brick body ageing-resistant performance is poor, causes brick body service life shorter, currently, such aerated bricks can not expire
The use demand of sufficient people.
Aerated bricks exist at present: the problems such as mechanical strength is general, infiltration can be bad, frost resistance is general.
Therefore, inventing the excellent aerated bricks of one kind has positive effect to construction material preparation technical field.
Summary of the invention
Present invention mainly solves the technical issues of, need to be improved for the mechanical strength of current common aerated bricks, Gao Kong
Gap rate aerated bricks infiltration energy defect that is bad, and causing the frost resistance of aerated bricks to decline, provides a kind of freeze proof high intensity
The preparation method of aerated bricks.
In order to solve the above-mentioned technical problem, the technical scheme adopted by the invention is that:
A kind of preparation method of freeze proof high-intensitive aerated bricks, it is characterised in that specific preparation step are as follows:
(1) composite aerated dose is mixed with concrete slurry, stirs 4~6min, obtains concrete mortar, concrete mortar is fallen
Enter in stock mould and pour, stock mould is placed in steam curing furnace, heat temperature raising, it is quiet stop 2~3h of maintenance after, demoulding, obtain adobe；
(2) aerating brick will be obtained after gained tile cutter, is placed in hydrothermal reaction kettle, first heats up, heat preservation steam curing 1~
2h, then heat up, continue to keep the temperature 9~10h of steam curing, be naturally cooling to room temperature, obtains freeze proof high-intensitive aerated bricks；
The specific preparation step of the concrete slurry are as follows:
(1) red mud is taken, red mud is eluriated with deionized water, discards bulk impurity with woven wire filter, obtains red mud suspension
Red mud suspension liquor is put into Buchner funnel and filtered, obtain filter cake, filter cake is put into baking oven by liquid, it is heated to 100~
110 DEG C, after drying 3~4h, after filter cake is placed in 3~4h of mortar grinder, sieving obtains pretreatment red mud；
(2) iron tailings, ordinary portland cement, gypsum, quartz sand, lime, pretreatment red mud, methyl silicon sodium alcoholate are placed in coagulation
In native mixer truck, with the revolving speed of 90~110r/min, it is stirred 4~5min and obtains dry blend, then 80 are added into mixer truck
~90 parts of water continue to be stirred to obtain concrete slurry；
The composite aerated dose of specific preparation step are as follows:
(1) 700~800g basalt fibre is put into 600~650mL sodium hydroxide solution, after impregnating 50~55min, filtering
Removal filtrate obtains rock wool fibers, takes 500~700g calcium carbide, is placed in 30~40min of ball milling in ball mill, obtains calcium carbide particle,
80~90mL soybean oil is placed in a beaker, is heated to 200~220 DEG C, calcium carbide particle is added in beaker, stirring 20~
25min obtains the modified calcium carbide particle in surface；
(2) the modified calcium carbide particle in surface is placed in 3~4h of grinding in grinder, sieves with 100 mesh sieve to obtain modified calcium carbide powder, it will be high
Ammonium chlorate, sodium nitrite, calcium carbide, rock wool fibers and the mixing of trimerization silanol are placed in stirred tank, with turning for 800~1000r/min
Speed is dispersed with stirring 15~20min, obtains composite aerated dose.
Composite aerated dose and concrete slurry mixing quality in the freeze proof high-intensitive specific preparation step of aerated bricks (1)
Than being preferably 1 ︰ 20.
Preparation adobe Shi Jingting curing temperature is preferably 90 in the freeze proof high-intensitive specific preparation step of aerated bricks (1)
~100 DEG C.
Steam curing temperature is kept the temperature after successively heating up twice in the freeze proof high-intensitive specific preparation step of aerated bricks (2)
Preferably 110~120 DEG C, 200~220 DEG C.
The granularity of gained pretreatment red mud is 100 mesh in the specific preparation step of the concrete slurry (1).
The each component raw material of concrete slurry is prepared in the specific preparation step of the concrete slurry (2), by weight
Number meter, including by 30~40 parts of iron tailings, 40~45 parts of ordinary portland cements, 10~15 parts of gypsum, 20~30 parts of quartz sands,
30~35 parts of lime, 20~25 parts of pretreatment red muds, 10~20 parts of brown powders, 5~10 parts of methyl silicon sodium alcoholates, 80~90 parts
Water.
Gained calcium carbide grain diameter is preferably 0.5~1.0mm in the specific preparation (1) of described composite aerated dose.
Sodium hydroxide solution mass fraction is preferably 20% in the specific preparation (1) of described composite aerated dose.
10~15 parts of ammonium perchlorate, 8~10 parts of sodium nitrites, 20~25 in the specific preparation (2) of described composite aerated dose
Part calcium carbide, 40~45 parts of rock wool fibers and 8~10 parts of trimerization silanols.
The beneficial effects of the present invention are:
(1) present invention obtains pre-processing red using waste red mud in aluminium metallurgy factory as raw material by washing, suction filtration, drying, grinding
The modified surface that is made of calcium carbide is modified calcium carbide particle by mud, and the modified calcium carbide particle in surface and basalt porous fibre are through coupling agent idol
Connection modification obtains composite aerated dose, finally concrete slurry is mixed with composite aerated dose, it is die-filling, demould, cut, conserving, must
To freeze proof high-intensitive aerated bricks, expensive since aluminium is in short supply, the present invention is with the electricity modified by semi-drying oil surface
Stone, ammonium perchlorate, sodium nitrite are cheap and easy to get due to calcium carbide as composite aerated dose, raw using calcium carbide as main air-entrainment
Producing equivalent aerated bricks only needs the 1/3 of alumium-based blowing agent cost, and the curing temperature of aerated bricks is also reduced, thus calcium carbide adds
Gas agent not only reduces cost of material, but also is greatly reduced production cost, and rock wool fibers and trimerization silanol are de- in the present invention
After water coupling, fibre strength is improved, the interfacial adhesion between aerated bricks mortar and fiber is improved, makes the knot of fiber and mortar
Resultant force enhances, and increases the resistant function of external force, and after the completion of conserving, concrete is coupled by fiber through the hole of aerated bricks,
When aerated bricks are stretched effect, fiber draw has effect separated but still in each other's thoughts, improves the fracture toughness of aerated bricks, is adding
When gas brick is by percussion, fiber has elasticity well, and impact stress is born by the buckling of fiber, improves resistance to compression
Intensity, so that aerated bricks mechanical strength be made to be enhanced；
(2) it is deposited in the present invention in red mud containing metal oxides, aluminium oxide such as aluminium oxide, calcium oxide in red mud with crystalline fibers
After repressed sintering, crystalline fibers are machine-direction oriented in aerated bricks, and rock wool fibers cross winding in aerated bricks, are formed and compiled
Knitmesh, not only further enhances aerated bricks mechanical strength, also makes pore structure in aerated bricks more stable, is not easy to be destroyed, together
When rock wool fibers and the dehydration coupling of trimerization silanol after, can generate hydrophobic silicone, improve aerated bricks infiltration energy, and high chlorine
Sour ammonium can react generation nitrogen with sodium nitrite jointly and get angry, which can also generate chlorate and fill up the big of aerated bricks
Hole reduces aperture, and can block intercommunicating pore, to improve the anti-freezing property of aerated bricks, has a extensive future.
Specific embodiment
Red mud is taken, red mud is eluriated with deionized water, discards bulk impurity with woven wire filter, obtains red mud suspension
Red mud suspension liquor is put into Buchner funnel and filtered, obtain filter cake, filter cake is put into baking oven by liquid, it is heated to 100~
It 110 DEG C, after drying 3~4h, after filter cake is placed in 3~4h of mortar grinder, sieves with 100 mesh sieve to obtain pretreatment red mud；By 700~
800g basalt fibre is put into the sodium hydroxide solution that 600~650mL mass fraction is 20%, after impregnating 50~55min, mistake
It filters off except filtrate obtains rock wool fibers, takes 500~700g calcium carbide, be placed in 30~40min of ball milling in ball mill, obtaining partial size is
The calcium carbide particle of 0.5~1.0mm, 80~90mL soybean oil is placed in a beaker, and is heated to 200~220 DEG C, by calcium carbide
In grain addition beaker, 20~25min is stirred, obtains the modified calcium carbide particle in surface；According to parts by weight, by 30~40 parts of iron tails
Mine, 40~45 parts of ordinary portland cements, 10~15 parts of gypsum, 20~30 parts of quartz sands, 30~35 parts of lime, 20~25 parts it is pre-
Processing red mud, 5~10 parts of methyl silicon sodium alcoholates are placed in concrete mixer truck, with the revolving speed of 90~110r/min, it is stirred 4~
5min obtains dry blend, then 80~90 parts of water are added into mixer truck, continues to be stirred to obtain concrete slurry；Surface is changed
Property calcium carbide particle be placed in grinder 3~4h of grinding, sieve with 100 mesh sieve to obtain modified calcium carbide powder, according to parts by weight, by 10~
15 parts of ammonium perchlorate, 8~10 parts of sodium nitrites, 20~25 parts of calcium carbides, 40~45 parts of rock wool fibers and 8~10 parts of trimerization silanols are mixed
Conjunction is placed in stirred tank, with the revolving speed of 800~1000r/min, is dispersed with stirring 15~20min, obtains composite aerated dose；It will be above-mentioned
Composite aerated dose is that 1 ︰ 20 is mixed with concrete slurry in mass ratio, stirs 4~6min, concrete mortar is obtained, by concrete
Mortar is poured into stock mould and is poured, and stock mould is placed in steam curing furnace, is heated to 90~100 DEG C, quiet to stop 2~3h of maintenance
Afterwards, it demoulds, obtains adobe；Aerating brick will be obtained after gained tile cutter, is placed in hydrothermal reaction kettle, first it is warming up to 110~
120 DEG C, 1~2h of steam curing is kept the temperature, then be warming up to 200~220 DEG C, continues to keep the temperature 9~10h of steam curing, be naturally cooling to
Room temperature obtains freeze proof high-intensitive aerated bricks.
Embodiment 1
Pre-process the preparation of red mud:
Red mud is taken, red mud is eluriated with deionized water, bulk impurity is discarded with woven wire filter, obtains red mud suspension liquor,
Red mud suspension liquor is put into Buchner funnel to filter, obtains filter cake, filter cake is put into baking oven, is heated to 100 DEG C, is done
After dry 3h, after filter cake is placed in mortar grinder 3h, sieve with 100 mesh sieve to obtain pretreatment red mud；
The preparation of the modified calcium carbide particle in surface:
700g basalt fibre is put into the sodium hydroxide solution that 600mL mass fraction is 20%, after impregnating 50min, is filtered off
Except filtrate obtains rock wool fibers, 500g calcium carbide is taken, is placed in ball milling 30min in ball mill, obtains the calcium carbide that partial size is 0.5mm
Grain, 80mL soybean oil is placed in a beaker, is heated to 200 DEG C, and calcium carbide particle is added in beaker, is stirred 20min, is obtained
The modified calcium carbide particle in surface；
The preparation of concrete slurry:
According to parts by weight, by 30 parts of iron tailings, 40 parts of ordinary portland cements, 10 parts of gypsum, 20 parts of quartz sands, 30 parts of stones
Ash, 20 parts of pretreatment red muds, 5 parts of methyl silicon sodium alcoholates are placed in concrete mixer truck, with the revolving speed of 90r/min, are stirred
4min obtains dry blend, then 80 parts of water are added into mixer truck, continues to be stirred to obtain concrete slurry；
Composite aerated dose of preparation:
The modified calcium carbide particle in surface is placed in grinder and grinds 3h, sieves with 100 mesh sieve to obtain modified calcium carbide powder, in parts by weight
10 parts of ammonium perchlorate, 8 parts of sodium nitrites, 20 parts of calcium carbides, 40 parts of rock wool fibers and 8 parts of trimerization silanols are mixed and are placed in stirring by meter
In kettle, with the revolving speed of 800r/min, it is dispersed with stirring 15min, obtains composite aerated dose；
The preparation of adobe:
With concrete slurry in mass ratio it is that 1 ︰ 20 is mixed by above-mentioned composite aerated dose, stirs 4min, obtain concrete mortar, it will
Concrete mortar is poured into stock mould and is poured, and stock mould is placed in steam curing furnace, is heated to 90 DEG C, quiet to stop after conserving 2h,
Demoulding, obtains adobe；
The preparation of freeze proof high intensity aerated bricks:
Aerating brick will be obtained after gained tile cutter, be placed in hydrothermal reaction kettle, be first warming up to 110 DEG C, keeps the temperature steam curing
1h, then 200 DEG C are warming up to, continue to keep the temperature steam curing 9h, be naturally cooling to room temperature, obtains freeze proof high-intensitive aerated bricks.
Embodiment 2
Pre-process the preparation of red mud:
Red mud is taken, red mud is eluriated with deionized water, bulk impurity is discarded with woven wire filter, obtains red mud suspension liquor,
Red mud suspension liquor is put into Buchner funnel to filter, obtains filter cake, filter cake is put into baking oven, is heated to 105 DEG C, is done
After dry 3.5h, after filter cake is placed in mortar grinder 3.5h, sieve with 100 mesh sieve to obtain pretreatment red mud；
The preparation of the modified calcium carbide particle in surface:
750g basalt fibre is put into the sodium hydroxide solution that 625mL mass fraction is 20%, after impregnating 52.5min, filtering
Removal filtrate obtains rock wool fibers, takes 600g calcium carbide, is placed in ball milling 35min in ball mill, obtains the calcium carbide that partial size is 0.75mm
85mL soybean oil is placed in a beaker by particle, is heated to 210 DEG C, and calcium carbide particle is added in beaker, stirs 22.5min,
Obtain the modified calcium carbide particle in surface；
The preparation of concrete slurry:
According to parts by weight, by 35 parts of iron tailings, 42.5 parts of ordinary portland cements, 12.5 parts of gypsum, 25 parts of quartz sands, 32.5
Part lime, 22.5 parts of pretreatment red muds, 7.5 parts of methyl silicon sodium alcoholates are placed in concrete mixer truck, with the revolving speed of 100r/min, are stirred
It mixes mixing 4.5min and obtains dry blend, then 85 parts of water are added into mixer truck, continue to be stirred to obtain concrete slurry；
Composite aerated dose of preparation:
The modified calcium carbide particle in surface is placed in grinder and grinds 3.5h, sieves with 100 mesh sieve to obtain modified calcium carbide powder, by weight
Number meter mixes 12.5 parts of ammonium perchlorate, 9 parts of sodium nitrites, 22.5 parts of calcium carbides, 42.5 parts of rock wool fibers and 9 parts of trimerization silanols
It is placed in stirred tank, with the revolving speed of 900r/min, is dispersed with stirring 17.5min, obtain composite aerated dose；
The preparation of adobe:
With concrete slurry in mass ratio it is that 1 ︰ 20 is mixed by above-mentioned composite aerated dose, stirs 5min, obtain concrete mortar, it will
Concrete mortar is poured into stock mould and is poured, and stock mould is placed in steam curing furnace, is heated to 95 DEG C, quiet to stop conserving 2.5h
Afterwards, it demoulds, obtains adobe；
The preparation of freeze proof high intensity aerated bricks:
Aerating brick will be obtained after gained tile cutter, be placed in hydrothermal reaction kettle, be first warming up to 115 DEG C, keeps the temperature steam curing
1.5h, then 210 DEG C are warming up to, continue to keep the temperature steam curing 9.5h, be naturally cooling to room temperature, obtains freeze proof high-intensitive aerated bricks.
Embodiment 3
Pre-process the preparation of red mud:
Red mud is taken, red mud is eluriated with deionized water, bulk impurity is discarded with woven wire filter, obtains red mud suspension liquor,
Red mud suspension liquor is put into Buchner funnel to filter, obtains filter cake, filter cake is put into baking oven, is heated to 110 DEG C, is done
After dry 4h, after filter cake is placed in mortar grinder 4h, sieve with 100 mesh sieve to obtain pretreatment red mud；
The preparation of the modified calcium carbide particle in surface:
800g basalt fibre is put into the sodium hydroxide solution that 650mL mass fraction is 20%, after impregnating 55min, is filtered off
Except filtrate obtains rock wool fibers, 700g calcium carbide is taken, is placed in ball milling 40min in ball mill, obtains the calcium carbide that partial size is 1.0mm
Grain, 90mL soybean oil is placed in a beaker, is heated to 220 DEG C, and calcium carbide particle is added in beaker, is stirred 25min, is obtained
The modified calcium carbide particle in surface；
The preparation of concrete slurry:
According to parts by weight, by 40 parts of iron tailings, 45 parts of ordinary portland cements, 15 parts of gypsum, 30 parts of quartz sands, 35 parts of stones
Ash, 25 parts of pretreatment red muds, 10 parts of methyl silicon sodium alcoholates are placed in concrete mixer truck, with the revolving speed of 110r/min, are stirred
5min obtains dry blend, then 90 parts of water are added into mixer truck, continues to be stirred to obtain concrete slurry；
Composite aerated dose of preparation:
The modified calcium carbide particle in surface is placed in grinder and grinds 4h, sieves with 100 mesh sieve to obtain modified calcium carbide powder, in parts by weight
15 parts of ammonium perchlorate, 10 parts of sodium nitrites, 25 parts of calcium carbides, 45 parts of rock wool fibers and 10 parts of trimerization silanols are mixed to be placed in and be stirred by meter
It mixes in kettle, with the revolving speed of 1000r/min, is dispersed with stirring 20min, obtain composite aerated dose；
The preparation of adobe:
With concrete slurry in mass ratio it is that 1 ︰ 20 is mixed by above-mentioned composite aerated dose, stirs 6min, obtain concrete mortar, it will
Concrete mortar is poured into stock mould and is poured, and stock mould is placed in steam curing furnace, is heated to 100 DEG C, quiet to stop after conserving 3h,
Demoulding, obtains adobe；
The preparation of freeze proof high intensity aerated bricks:
Aerating brick will be obtained after gained tile cutter, be placed in hydrothermal reaction kettle, be first warming up to 120 DEG C, keeps the temperature steam curing
2h, then 220 DEG C are warming up to, continue to keep the temperature steam curing 10h, be naturally cooling to room temperature, obtains freeze proof high-intensitive aerated bricks.
Comparative example 1 and the preparation method of example 1 are essentially identical, have only the difference is that lacking the modified calcium carbide particle in surface.
Comparative example 2 and the preparation method of example 1 are essentially identical, have only the difference is that lacking trimerization silanol.
The aerated bricks of 3 Hefei company of comparative example production.
Performance detection is carried out to the aerated bricks in the present invention and comparative example respectively, testing result is as shown in table 1:
Detection method:
Compression strength is detected referring to the standard of GB11969-2006.
Flexural strength is detected referring to the standard of GB11969-2006.
Hole ratio is detected referring to the standard of GB/T2542-2003.
The impervious standard referring to GB/T50315-2011 is detected.
Frost resistance is detected referring to the standard of GB/T11973.
1 aerated bricks performance measurement result of table
| Test item | Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example 1 | Comparative example 2 | Comparative example 3 |
| Compression strength (MPa) | 16.5 | 17.6 | 18.7 | 7.2 | 8.6 | 10.6 |
| Flexural strength (MPa) | 14.4 | 15.6 | 16.3 | 8.3 | 9.2 | 11.6 |
| Hole ratio (%) | 18.2 | 17.3 | 15.5 | 39.8 | 35.6 | 26.7 |
| It is impervious | 5.9 | 6.5 | 7.3 | 3.6 | 4.2 | 4.7 |
| Frost resistance (loss of strength rate % after jelly) | 8.5 | 8.2 | 7.9 | 18.9 | 17.6 | 15.3 |
By table 1, it can be seen that freeze proof high-intensitive aerated bricks prepared by the present invention, mechanical strength is preferable, and porosity is lower, gas brick
Water-impervious excellent performance, frost resistance is good, and loss of strength rate is low after jelly, has broad application prospects.
The foregoing is merely preferred modes of the invention, are not intended to limit the invention, all in spirit and original of the invention
Within then, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of preparation method of freeze proof high-intensitive aerated bricks, it is characterised in that specific preparation step are as follows:
(1) composite aerated dose is mixed with concrete slurry, stirs 4~6min, obtains concrete mortar, concrete mortar is fallen
Enter in stock mould and pour, stock mould is placed in steam curing furnace, heat temperature raising, it is quiet stop 2~3h of maintenance after, demoulding, obtain adobe；
(2) aerating brick will be obtained after gained tile cutter, is placed in hydrothermal reaction kettle, first heats up, heat preservation steam curing 1~
2h, then heat up, continue to keep the temperature 9~10h of steam curing, be naturally cooling to room temperature, obtains freeze proof high-intensitive aerated bricks；
The specific preparation step of the concrete slurry are as follows:
(1) red mud is taken, red mud is eluriated with deionized water, discards bulk impurity with woven wire filter, obtains red mud suspension
Red mud suspension liquor is put into Buchner funnel and filtered, obtain filter cake, filter cake is put into baking oven by liquid, it is heated to 100~
110 DEG C, after drying 3~4h, after filter cake is placed in 3~4h of mortar grinder, sieving obtains pretreatment red mud；
(2) iron tailings, ordinary portland cement, gypsum, quartz sand, lime, pretreatment red mud, methyl silicon sodium alcoholate are placed in coagulation
In native mixer truck, with the revolving speed of 90~110r/min, it is stirred 4~5min and obtains dry blend, then 80 are added into mixer truck
~90 parts of water continue to be stirred to obtain concrete slurry；
The composite aerated dose of specific preparation step are as follows:
(1) 700~800g basalt fibre is put into 600~650mL sodium hydroxide solution, after impregnating 50~55min, filtering
Removal filtrate obtains rock wool fibers, takes 500~700g calcium carbide, is placed in 30~40min of ball milling in ball mill, obtains calcium carbide particle,
80~90mL soybean oil is placed in a beaker, is heated to 200~220 DEG C, calcium carbide particle is added in beaker, stirring 20~
25min obtains the modified calcium carbide particle in surface；
(2) the modified calcium carbide particle in surface is placed in 3~4h of grinding in grinder, sieves with 100 mesh sieve to obtain modified calcium carbide powder, it will be high
Ammonium chlorate, sodium nitrite, calcium carbide, rock wool fibers and the mixing of trimerization silanol are placed in stirred tank, with turning for 800~1000r/min
Speed is dispersed with stirring 15~20min, obtains composite aerated dose.
2. the preparation method of the freeze proof high-intensitive aerated bricks of one kind according to claim 1, it is characterised in that: described is freeze proof
Composite aerated dose and concrete slurry mixing mass ratio are preferably 1 ︰ 20 in the high-intensitive specific preparation step of aerated bricks (1).
3. the preparation method of the freeze proof high-intensitive aerated bricks of one kind according to claim 1, it is characterised in that: described is freeze proof
Preparation adobe Shi Jingting curing temperature is preferably 90~100 DEG C in the high-intensitive specific preparation step of aerated bricks (1).
4. the preparation method of the freeze proof high-intensitive aerated bricks of one kind according to claim 1, it is characterised in that: described is freeze proof
After successively heating up twice in the high-intensitive specific preparation step of aerated bricks (2) heat preservation steam curing temperature be preferably 110~120 DEG C,
200~220 DEG C.
5. the preparation method of the freeze proof high-intensitive aerated bricks of one kind according to claim 1, it is characterised in that: the coagulation
The granularity of gained pretreatment red mud is 100 mesh in the specific preparation step of soil paste liquid (1).
6. the preparation method of the freeze proof high-intensitive aerated bricks of one kind according to claim 1, it is characterised in that: the coagulation
The each component raw material of concrete slurry is prepared in the specific preparation step of soil paste liquid (2), according to parts by weight, including by 30~40 parts
Iron tailings, 40~45 parts of ordinary portland cements, 10~15 parts of gypsum, 20~30 parts of quartz sands, 30~35 parts of lime, 20~25
Part pretreatment red mud, 10~20 parts of brown powders, 5~10 parts of methyl silicon sodium alcoholates, 80~90 parts of water.
7. the preparation method of the freeze proof high-intensitive aerated bricks of one kind according to claim 1, it is characterised in that: described is compound
It is preferably 0.5~1.0mm that air-entrainment, which specifically prepares gained calcium carbide grain diameter in (1),.
8. the preparation method of the freeze proof high-intensitive aerated bricks of one kind according to claim 1, it is characterised in that: described is compound
It is preferably 20% that air-entrainment, which specifically prepares sodium hydroxide solution mass fraction in (1),.
9. the preparation method of the freeze proof high-intensitive aerated bricks of one kind according to claim 1, it is characterised in that: described is compound
Air-entrainment specifically prepares 10~15 parts of ammonium perchlorate in (2), 8~10 parts of sodium nitrites, 20~25 parts of calcium carbides, 40~45 parts of rock wools
Fiber and 8~10 parts of trimerization silanols.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110776299A (en) * | 2019-11-20 | 2020-02-11 | 贵州彬腾越新型建材有限公司 | Environment-friendly aerated brick and preparation method thereof |
| CN111548186A (en) * | 2020-06-13 | 2020-08-18 | 李秋惠 | Porous silicon carbide ceramic and low-temperature preparation method |
| CN111807488A (en) * | 2020-08-05 | 2020-10-23 | 潍坊工商职业学院 | Technical method for preparing ecological environment-friendly composite water treatment agent by large solid waste complexing agent |
| CN115159938A (en) * | 2022-04-07 | 2022-10-11 | 广西大学 | Method for preparing aerated brick by combining red mud and sugar-making filter mud |
| CN117735941A (en) * | 2024-02-21 | 2024-03-22 | 山东新广恒节能科技有限公司 | Preparation method of lightweight concrete aerated building block |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105668010A (en) * | 2016-02-17 | 2016-06-15 | 柳州市乾阳机电设备有限公司 | Nitrogen generation bag used for air-exhaust-free vacuum storage bag |
| CN107602043A (en) * | 2017-10-16 | 2018-01-19 | 王若梅 | A kind of preparation method of high intensity aerated bricks |
| CN108383463A (en) * | 2018-03-30 | 2018-08-10 | 吕莉 | A kind of preparation method of high-strength insulation aerated bricks |
-
2019
- 2019-07-06 CN CN201910606663.0A patent/CN110372293A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105668010A (en) * | 2016-02-17 | 2016-06-15 | 柳州市乾阳机电设备有限公司 | Nitrogen generation bag used for air-exhaust-free vacuum storage bag |
| CN107602043A (en) * | 2017-10-16 | 2018-01-19 | 王若梅 | A kind of preparation method of high intensity aerated bricks |
| CN108383463A (en) * | 2018-03-30 | 2018-08-10 | 吕莉 | A kind of preparation method of high-strength insulation aerated bricks |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110776299A (en) * | 2019-11-20 | 2020-02-11 | 贵州彬腾越新型建材有限公司 | Environment-friendly aerated brick and preparation method thereof |
| CN111548186A (en) * | 2020-06-13 | 2020-08-18 | 李秋惠 | Porous silicon carbide ceramic and low-temperature preparation method |
| CN111807488A (en) * | 2020-08-05 | 2020-10-23 | 潍坊工商职业学院 | Technical method for preparing ecological environment-friendly composite water treatment agent by large solid waste complexing agent |
| CN115159938A (en) * | 2022-04-07 | 2022-10-11 | 广西大学 | Method for preparing aerated brick by combining red mud and sugar-making filter mud |
| CN115159938B (en) * | 2022-04-07 | 2023-11-03 | 广西产研院智慧农业研究院有限公司 | Method for manufacturing aerated brick by combining red mud and sugar-making filter mud |
| CN117735941A (en) * | 2024-02-21 | 2024-03-22 | 山东新广恒节能科技有限公司 | Preparation method of lightweight concrete aerated building block |
| CN117735941B (en) * | 2024-02-21 | 2024-04-23 | 山东新广恒节能科技有限公司 | Preparation method of lightweight concrete aerated building block |
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