CN105130324B - Manufacture method for autoclaved fly-ash aerated concrete block - Google Patents
Manufacture method for autoclaved fly-ash aerated concrete block Download PDFInfo
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- CN105130324B CN105130324B CN201510509221.6A CN201510509221A CN105130324B CN 105130324 B CN105130324 B CN 105130324B CN 201510509221 A CN201510509221 A CN 201510509221A CN 105130324 B CN105130324 B CN 105130324B
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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
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- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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Abstract
The invention relates to a manufacture method for an autoclaved fly-ash aerated concrete block, and belongs to the field of building materials. The method comprises performing granulation and sintering on a waste fly-ash aerated block, fly ash, quicklime, desulfurized gypsum, waste concrete, crushed waste glass and water glass, so as to obtain an aggregate C; and then preparing a mixed slurry from a non ferrous metal slag powder, cement, quicklime, the aggregate C, desulfurized gypsum, an efficient foaming agent, an efficient mortar thickening powder, sodium poly[(naphthaleneformaldehyde)sulfonate], polyvinyl alcohol, aluminium hydroxide and water, pouring into a die for molding, and performing autoclave curing, so as to obtain the target product. The method consumes a large amount of solid wastes, and the building block firm in bonding, good in impermeability and low in shrinkage value, and quality disadvantages such as peeling, cracking and the like of a built wall are overcome. By adding the aggregate C with high strength and light weight, the autoclaved fly-ash aerated concrete block is improved in structure, improved in limit load and compressive strength, and high in thermal-insulation performance. The efficient foaming agent is capable of forming stable foams, and is large in foaming amount and high in foaming multiple.
Description
Technical field
The present invention relates to a kind of manufacture method of aerated coal ash concrete building block, belongs to building material field.
Background technology
With the continuous improvement of living standard, the solid waste produced in mankind's daily life and production, will produce every year
Raw billions of tons of rubbish, as discharge rate is big, complicated component is various, and has contaminative, resource and social, needs nothing
Evilization, resource, minimizing and socialization are processed, and can not such as be dealt carefully with, just be polluted the environment, and affect environmental sanitation, are wasted
Resource, destroys productive life safety, destroys social harmony.Such as remaining waste material in construction or source removal floor coagulation
The concrete waste materials such as soil layer, it can neither be discharged to stream（Because of its easy contamination and plugging water channel）, commodity can not be converted again
Sell, factory transports landfill after only being smashed to pieces, need the processing cost such as extra landfill place, machinery, artificial, amount of load
Greatly.The glass waste of the generations such as source life, industry, medical treatment, therefore it is complicated to originate, and processes loaded down with trivial details.Coal ash aerated blocks produce,
The fly ash aerated lump waste materials of more defective work are also easy to produce in processing, transportation, the fly ash aerated lump waste materials in the part are accounted for
According to business inventory, enterprise operation cost, difficult treatment is virtually improve.Tongling is located on the Copper iron ore zone of the Changjiang river, interior generation
Ore deposit condition is favourable, famous with non-ferrous metal copper mine；Tongling Nonferrous Metals mineral metal products based on copper mine, also gold, silver, molybdenum, manganese, aluminium,
Zn-ef ficiency etc., complex structure, Tongling Nonferrous Metals mineral metal products is produced in process of production non-ferrous metal slag its sulfur content is very
Height, its nonferrous metals ore Slag treatment trouble, high cost.
Existing insulation class aerated coal ash concrete building block production mainly with sinter class aggregate, lime, cement,
Gypsum etc. be main material, Jing aluminium powders（Cream）Get angry, high-pressure saturated steam steam press maintenance and obtain the porous with some strength
The New Building Materials of lightweight.But aerated coal ash concrete building block its compression strength of the method manufacture is lower slightly, only
There is 3Mpa, for the quality drawback such as easily flake during masonry panel, ftracture；The coefficient of foaming of foaming agent is low, typically 6 ~ 10
Times；Sintering class aggregate Raw material processing requires that finely grinding particle diameter is generally less than the composition of 0.03mm particles and is more than 70%, and which is medium and small
40% be should be less than in the composition of 0.005mm particles, else if it is proportional too big shared by bulky grain composition, at a certain temperature, material
The viscosity of material is too big, unfavorable balling-up；And class aggregate sintering temperature is typically sintered at 1050 ~ 1100 DEG C, high energy consumption, production cost
It is slightly higher.
The content of the invention
The present invention is in view of the shortcomings of the prior art, there is provided a kind of manufacture of aerated coal ash concrete building block
Method, concrete technical scheme are as follows：
A kind of manufacture method of aerated coal ash concrete building block, comprises the following steps：
Step S1：Granulation
（a）5 ~ 7 weight parts of fine coal ash, 3 ~ 4.5 weight parts of quicklime, 2 ~ 3.5 weight portion desulfurated plasters are proportionally mixed
It is after conjunction, levigate in ball mill, mixture A is obtained, the particle diameter of mixture A is less than 0.05mm；
（b）60 ~ 70 weight portion waste fly ash aerated blocks are used into crusher in crushing, the particle diameter after crushing is less than 10mm and big
In 6mm；7 ~ 10 weight portion waste concretes are crushed, the waste concrete fineness after crushing is 70 mesh；By 8 ~ 10 weight portion cullet
Crush, the cullet fineness after crushing is 70 mesh；
（c）By mixture A, the waste fly ash aerated blocks through break process, the waste concrete through pulverization process, process
The cullet of pulverization process uses granulator granulation after mixing with the stirring of 5 ~ 6 weight portion waterglass, obtains semi-finished product B, semi-finished product B
Particle diameter be less than 12mm and be more than 8mm；
Step S2：Sintering
Semi-finished product B being sintered in sintering machine, sintering temperature is 950 ~ 980 DEG C, the heating rate of sintering machine is 50 DEG C/
15min, is incubated 20min at a temperature of 950 ~ 980 DEG C, that is, aggregate C is obtained；
Step S3：Slurrying
Non-ferrous metal slag powders and desulfurated plaster is weighed by weight ratio, is stirred after addition of water under 700 ~ 1000rpm
After 20 ~ 30min of mixing, mixed slurry D is obtained with wet ball mill, then adds aerated coal ash coagulation by weight ratio
Remaining raw material needed for prepared by earth building blocks stirs 30 ~ 50min of mixing under 2000 ~ 2800rpm, obtains mixed slurry E；
Each parts by weight of raw materials proportioning of the aerated coal ash concrete building block is：
50 ~ 60 parts of non-ferrous metal slag powders, 25 ~ 30 parts of cement, 10 ~ 15 parts of quick lime, 20 ~ 30 parts of aggregate C, desulfurization stone
3 ~ 5 parts of cream, 0.07 ~ 0.08 part of efficient aerating powder, 0.03 ~ 0.06 part of efficient mortar densification powder, poly- sodium naphthalene sulfonate 0.03 ~ 0.05
Part, 0.1 ~ 0.3 part of polyvinyl alcohol, 0.03 ~ 0.06 part of aluminium hydroxide, 160 ~ 170 parts of water；
Step S4：Base
Gained mixed slurry E is poured into the mold shaping, 2 ~ 3h of precuring, the demoulding at 40 ~ 50 DEG C are hoisted to cutting part and cut
Cut, obtain fragment of brick base；
Step S5：Steam press maintenance
Fragment of brick base is put into into steam press maintenance in reactor, the steam press maintenance time is 8 ~ 10h, and temperature is 170 ~ 180 DEG C, pressure
For 1 ~ 1.3Mpa；Fragment of brick base after steam press maintenance is removed into reactor, aerated coal ash concrete building block is obtained final product.
Used as the improvement of above-mentioned technical proposal, the efficient aerating powder is by 35 weight portion rosin, 17 parts by weight of phenol, 1 weight
Amount part concentrated sulfuric acid heats 3h at a temperature of 50 ~ 60 DEG C, sequentially adds 2 parts by weight of sodium hydroxide, 12 weight portion gelatine, 108 weights
Amount part water, under 2800 ~ 3500rpm, 5 ~ 10min of stirring mixing, is mixed.
Used as the improvement of above-mentioned technical proposal, described efficient mortar densification powder is by 70 weight parts of fine coal ash, 50 weight portions
Semi-hydrated gypsum, 65 weight parts of quicklime, 8 parts by weight of pulverulent sodium metasilicate, 5 weight portion calcium lignosulfonates, 40 weight portion anhydrous sodium sulfates, dry
Carry out ball milling mixing to make in formula ball mill, it is 270 mesh ~ 325 mesh to be thickened powder fineness through the efficient mortar of ball-milling treatment.
Used as the improvement of above-mentioned technical proposal, described mixed slurry D fineness is 170 ~ 200 mesh.
The invention has the beneficial effects as follows：（1）The present invention consumes a large amount of non-ferrous metal slag waste materials, flyash, concrete
The solid wastes such as waste material, glass waste, fly ash aerated lump waste materials, have responded national economical environment-protective policy, have not only reduced production cost,
And comprehensively utilized waste material.
（2）Compared with common aerated coal ash concrete building block, add the autoclaved fly ash of efficient mortar densification powder
Air-entrained concrete building block is firmly bonded, and impervious good, shrinkage value is low, is conducive to overcoming the matter such as flake, ftracture for masonry panel
Amount disadvantage；During poly- sodium naphthalene sulfonate promotes densification, granular material is uniformly dispersed, and is not susceptible to reunite and shrinks.
（3）In the production of aggregate C, flyash, lime, desulfurated plaster pass through first to mix, then the pre-activate technique of grinding, carry
Compatibility and contact area between the decentralization of high each component and each material, can promote the activation of flyash.Waterglass is carried
High other powder turn the plasticity of raw material so that grave mountain structure originally becomes more closely knit；Powder glass, can improve bone
The sintering situation of material C, reduces sintering temperature；With oarse-grained fly ash aerated piece as individual media, remaining grinding shape raw material is very
Fly ash aerated piece of outer surface is wrapped in easily, and after sintering, the powder such as powder glass and flyash adds in flyash
The surface vitrification of air parcel and form one layer of fine and close crust, form a kind of lightweight after cooling, hard, thermal conductivity factor is low, have
The aggregate C of obvious cellular rock-steady structure；Flyash, lime, the pre-activate of desulfurated plaster three, can effectively improve material
Uniformity, destroy flyash in porous vitreum, sintering when promote waste fly ash aerated blocks dissolution silica and three
Al 2 O, promotes which to be combined with the aquation of cement, and quick lime aoxidizes two with the silica and three in waste fly ash aerated blocks
There is polymerisation in aluminium；Desulfurated plaster serves the double action of lime accelerator and sulphate activation agent.The production of aggregate C by
In raw material sources extensively, process is simple, the broken Particle size requirements of waste fly ash aerated blocks, cullet and waste concrete are low, burn
Junction temperature is low, and energy resource consumption is little, than same type sintering class aggregate low cost 20% ~ 30%.Addition intensity is big, the aggregate C of light weight,
Improve the structure of aerated coal ash concrete building block, ultimate load and compression strength are improved, due to autoclaved fly ash plus
There is inside gas concrete segment and aggregate C substantial amounts of pore and micropore, thus have good thermal and insulating performance.
（4）The foam stabilization that efficient aerating powder is formed in raw material of the present invention, and gas release is big, coefficient of foaming is up to 20
Times, 1h bleeding quantities are 70ml, and polyvinyl alcohol further improves the foam stability after foaming, and aluminium hydroxide further improves foam
Expansion multiple.
（5）Aerated coal ash concrete block performance of the present invention is superior, and waste material can be made to reach comprehensive profit
With with significant economic benefit and social benefit.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that specific embodiment described herein is not used to only to explain the present invention
Limit the present invention.
Embodiment 1
（1）, by 5Kg flyash, 3Kg quick limes, 2Kg desulfurated plasters mixing after, it is levigate in ball mill, obtain mixture
The particle diameter of A, mixture A is less than 0.05mm；70Kg waste fly ash aerated blocks are used into crusher in crushing, take particle diameter less than 10mm and
It is stand-by more than the particle of 6mm；7Kg waste concretes are crushed, the waste concrete fineness after crushing is 70 mesh；By 8Kg waste glass powders
Broken, the cullet fineness after crushing is 70 mesh；By mixture A, through the waste fly ash aerated blocks of break process, at crushing
The waste concrete of reason, use granulator granulation after the cullet and 5Kg waterglass of pulverization process are stirred and mix, obtain partly into
The particle diameter of product B, semi-finished product B is less than 12mm and is more than 8mm；Semi-finished product B is sintered in sintering machine, sintering temperature is 950 DEG C, is burnt
The heating rate of knot machine is 50 DEG C/15min, is incubated 20min at a temperature of 950 DEG C, that is, aggregate C is obtained；
（2）, 35Kg rosin, 17Kg phenol, the 1Kg concentrated sulfuric acids heated into 3h at a temperature of 55 DEG C, sequentially add 2Kg hydrogen-oxygens
Change sodium, 12Kg gelatine and 108Kg water, stirring mixing 5min, obtains efficient aerating powder under 3500rpm；
（3）, by 70Kg flyash, 50Kg semi-hydrated gypsums, 65Kg quick limes, 8Kg powdery sodium silicates, 5Kg calcium lignosulfonates, 40Kg without
Aqueous sodium persulfate, in dry ball carries out ball milling mixing and makes efficient mortar densification powder, through the efficient mortar of ball-milling treatment
Thickening powder fineness is 270 mesh ~ 325 mesh；
（4）, weigh 50Kg non-ferrous metals slag powders and 3Kg desulfurated plasters, add 7Kg water after under 1000rpm stir
After mixing 20min, the mixed slurry D of non-ferrous metal slag powders and desulfurated plaster, mixed slurry D fineness is obtained with wet ball mill
For 170 ~ 200 mesh；Sequentially add 25Kg cement, 10Kg quick limes, 25Kg aggregate C, 0.07Kg efficient aerating powders, 0.03Kg high
Effect mortar densification powder, the poly- sodium naphthalene sulfonates of 0.03Kg, 0.1Kg polyvinyl alcohol, 0.03Kg aluminium hydroxides and 153Kg water, under 25rpm
Stirring mixing 40min, obtains mixed slurry E；
（5）, pour into the mold shaping by gained mixed slurry E, precuring 2h, the demoulding at 50 DEG C, is hoisted to cutting part cutting,
Obtain fragment of brick base；
（6）, fragment of brick base is put into steam press maintenance in reactor, when a length of 8h of steaming pressuring curing process, temperature is 175 DEG C,
Pressure is 1.3Mpa；Fragment of brick base after steam press maintenance is removed into reactor, aerated coal ash concrete building block is obtained final product.
The length of this aerated coal ash concrete building block is 190mm, and width 390mm, volume-weighted average are 690kg/m3,
Good heat insulating, has substantial amounts of pore and micropore in block interiors, thus has good thermal and insulating performance, ultimate load
560.36Mpa, compression strength is 7.6MPa.
Embodiment 2
（1）, by 7Kg flyash, 4Kg quick limes, 3Kg desulfurated plasters mixing after, it is levigate in ball mill, obtain mixture
The particle diameter of A, mixture A is less than 0.05mm；60Kg waste fly ash aerated blocks are used into crusher in crushing, take particle diameter less than 10mm and
It is stand-by more than the particle of 6mm；10Kg waste concretes are crushed, the waste concrete fineness after crushing is 70 mesh；By 10Kg cullet
Crush, the cullet fineness after crushing is 70 mesh；By mixture A, through the waste fly ash aerated blocks of break process, through crushing
The waste concrete of process, use granulator granulation after the cullet and 6Kg waterglass of pulverization process are stirred and mix, obtain partly
The particle diameter of finished product B, semi-finished product B is less than 12mm and is more than 8mm；Semi-finished product B is sintered in sintering machine, sintering temperature is 980 DEG C,
The heating rate of sintering machine is 50 DEG C/15min, is incubated 20min at a temperature of 980 DEG C, that is, aggregate C is obtained；
（2）, 35Kg rosin, 17Kg phenol, the 1Kg concentrated sulfuric acids heated into 3h at a temperature of 50 DEG C, sequentially add 2Kg hydrogen-oxygens
Change sodium, 12Kg gelatine and 108Kg water, stirring mixing 8min, obtains efficient aerating powder under 2800 ~ 3500rpm；
（3）, by 70Kg flyash, 50Kg semi-hydrated gypsums, 65Kg quick limes, 8Kg powdery sodium silicates, 5Kg calcium lignosulfonates, 40Kg without
Aqueous sodium persulfate, in dry ball carries out ball milling mixing and makes efficient mortar densification powder, through the efficient mortar of ball-milling treatment
Thickening powder fineness is 270 mesh ~ 325 mesh；
（4）, weigh 55Kg non-ferrous metals slag powders and 4Kg desulfurated plasters, add 10Kg water after under 700rpm stir
After mixing 30min, the mixed slurry D of non-ferrous metal slag powders and desulfurated plaster, mixed slurry D fineness is obtained with wet ball mill
For 170 ~ 200 mesh；Sequentially add 27Kg cement, 12Kg quick limes, 20Kg aggregate C, 0.07Kg efficient aerating powders, 0.05Kg high
Effect mortar densification powder, the poly- sodium naphthalene sulfonates of 0.04Kg, 0.2Kg polyvinyl alcohol, 0.05Kg aluminium hydroxides and 155Kg water, in 2000rpm
Lower stirring mixing 50min, obtains mixed slurry E；
（5）, pour into the mold shaping by gained mixed slurry E, precuring 3h, the demoulding at 40 DEG C, is hoisted to cutting part cutting,
Obtain fragment of brick base；
（6）, fragment of brick base is put into steam press maintenance in reactor, when a length of 10h of steaming pressuring curing process, temperature is 170 DEG C,
Pressure is 1MPa.Fragment of brick base after steam press maintenance is removed into reactor, aerated coal ash concrete building block is obtained final product.
The length of this aerated coal ash concrete building block is 190mm, and width 390mm, volume-weighted average are 700kg/m3,
Good heat insulating, has substantial amounts of pore and micropore in block interiors, thus has good thermal and insulating performance, ultimate load
532.58Mpa, compression strength is 7.0MPa.
Embodiment 3
（1）, by 5.5Kg flyash, 4.5Kg quick limes, 3.5Kg desulfurated plasters mixing after, it is levigate in ball mill, obtain
The particle diameter of mixture A, mixture A is less than 0.05mm；64Kg waste fly ash aerated blocks are used into crusher in crushing, particle diameter is taken and is less than
10mm and stand-by more than the particle of 6mm；8Kg waste concretes are crushed, the waste concrete fineness after crushing is 70 mesh；9Kg is given up
Glass is crushed, and the cullet fineness after crushing is 70 mesh；By mixture A, the waste fly ash aerated blocks through break process, process
The waste concrete of pulverization process, after the cullet and 5.5Kg waterglass of pulverization process are stirred and mixs using granulator granulation,
Semi-finished product B is obtained, the particle diameter of semi-finished product B is less than 12mm and is more than 8mm；Semi-finished product B is sintered in sintering machine, sintering temperature is
965 DEG C, the heating rate of sintering machine is 50 DEG C/15min, is incubated 20min at a temperature of 965 DEG C, that is, aggregate C is obtained；
（2）, 35Kg rosin, 17Kg phenol, the 1Kg concentrated sulfuric acids heated into 3h at a temperature of 60 DEG C, sequentially add 2Kg hydrogen-oxygens
Change sodium, 12Kg gelatine and 108Kg water, stirring mixing 10min, obtains efficient aerating powder under 2800 ~ 3500rpm；
（3）, by 70Kg flyash, 50Kg semi-hydrated gypsums, 65Kg quick limes, 8Kg powdery sodium silicates, 5Kg calcium lignosulfonates, 40Kg without
Aqueous sodium persulfate, in dry ball carries out ball milling mixing and makes efficient mortar densification powder, through the efficient mortar of ball-milling treatment
Thickening powder fineness is 270 mesh ~ 325 mesh；
（4）, weigh 60Kg non-ferrous metals slag powders and 5Kg desulfurated plasters, add 15Kg water after under 900rpm stir
After mixing 25min, the mixed slurry D of non-ferrous metal slag powders and desulfurated plaster, mixed slurry D fineness is obtained with wet ball mill
For 170 ~ 200 mesh；Sequentially add 30Kg cement, 15Kg quick limes, 30Kg aggregate C, 0.08Kg efficient aerating powders, 0.06Kg high
Effect mortar densification powder, the poly- sodium naphthalene sulfonates of 0.05Kg, 0.3Kg polyvinyl alcohol, 0.06Kg aluminium hydroxides and 155Kg water, in 2800rpm
Lower stirring mixing 30min, obtains mixed slurry E；
（5）, pour into the mold shaping by gained mixed slurry E, precuring 2h, the demoulding at 50 DEG C, is hoisted to cutting part cutting,
Obtain fragment of brick base；
（6）, fragment of brick base is put into steam press maintenance in reactor, when a length of 9h of steaming pressuring curing process, temperature is 180 DEG C,
Pressure is 1.2MPa.Fragment of brick base after steam press maintenance is removed into reactor, aerated coal ash concrete building block is obtained final product.
The length of this aerated coal ash concrete building block is 190mm, and width 390mm, volume-weighted average are 700kg/m3,
Good heat insulating, has substantial amounts of pore and micropore in block interiors, thus has good thermal and insulating performance, ultimate load
556.86Mpa, compression strength is 7.5MPa.
In above-described embodiment, remaining waste material or source removal floorslab concrete in concrete waste material source construction
Layer etc., the glass waste of the generation such as the life of glass waste main source, industry, medical treatment, fly ash aerated lump waste materials derive from powder
Waste material that the production of coal ash aerated blocks, processing, the defective work in transportation or waste and old building are removed etc., by flyash plus
Air parcel waste material is used in the present invention, very big to obtain revitalizing an enterprise stock, reduce enterprise's production capacity.The raw material sources that the present invention is used
Extensively, low cost, while being comprehensively utilized waste material.
Presently preferred embodiments of the present invention is the foregoing is only, not to limit the present invention, all essences in the present invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (4)
1. a kind of manufacture method of aerated coal ash concrete building block, it is characterised in that：Comprise the following steps：
Step S1：Granulation
（a）After 5 ~ 7 weight parts of fine coal ash, 3 ~ 4.5 weight parts of quicklime, 2 ~ 3.5 weight portion desulfurated plasters are proportionally mixed,
It is levigate in ball mill, mixture A is obtained, the particle diameter of mixture A is less than 0.05mm；
（b）60 ~ 70 weight portion waste fly ash aerated blocks are used into crusher in crushing, the particle diameter after crushing is less than 10mm and is more than
6mm；7 ~ 10 weight portion waste concretes are crushed, the waste concrete fineness after crushing is 70 mesh；By 8 ~ 10 weight portion waste glass powders
Broken, the cullet fineness after crushing is 70 mesh；
（c）Mixture A, the waste fly ash aerated blocks through break process, the waste concrete through pulverization process, process are crushed
The cullet of process uses granulator granulation after mixing with the stirring of 5 ~ 6 weight portion waterglass, obtains semi-finished product B, the grain of semi-finished product B
Footpath is less than 12mm and is more than 8mm；
Step S2：Sintering
Semi-finished product B is sintered in sintering machine, sintering temperature is 950 ~ 980 DEG C, the heating rate of sintering machine is 50 DEG C/15min,
20min is incubated at a temperature of 950 ~ 980 DEG C, that is, aggregate C is obtained；
Step S3：Slurrying
Non-ferrous metal slag powders and desulfurated plaster is weighed by weight ratio, the stirring mixing under 700 ~ 1000rpm after addition of water
After 20 ~ 30min, mixed slurry D is obtained with wet ball mill, then adds aerated coal ash concrete to build by weight ratio
Remaining raw material needed for prepared by block stirs 30 ~ 50min of mixing under 2000 ~ 2800rpm, obtains mixed slurry E；
Each parts by weight of raw materials proportioning of the aerated coal ash concrete building block is：
50 ~ 60 parts of non-ferrous metal slag powders, 25 ~ 30 parts of cement, 10 ~ 15 parts of quick lime, 20 ~ 30 parts of aggregate C, desulfurated plaster 3 ~ 5
Part, 0.07 ~ 0.08 part of efficient aerating powder, 0.03 ~ 0.06 part of efficient mortar densification powder, 0.03 ~ 0.05 part of poly- sodium naphthalene sulfonate, poly- second
0.1 ~ 0.3 part of enol, 0.03 ~ 0.06 part of aluminium hydroxide, 160 ~ 170 parts of water；
Step S4：Base
Gained mixed slurry E is poured into the mold shaping, 2 ~ 3h of precuring, the demoulding at 40 ~ 50 DEG C are hoisted to cutting part cutting, obtain
Fragment of brick base；
Step S5：Steam press maintenance
Fragment of brick base being put into into steam press maintenance in reactor, the steam press maintenance time is 8 ~ 10h, and temperature is 170 ~ 180 DEG C, pressure is 1 ~
1.3Mpa；Fragment of brick base after steam press maintenance is removed into reactor, aerated coal ash concrete building block is obtained final product.
2. the manufacture method of a kind of aerated coal ash concrete building block according to claim 1, it is characterised in that：Institute
State efficient aerating powder 3h is heated at a temperature of 50 ~ 60 DEG C by 35 weight portion rosin, 17 parts by weight of phenol, the 1 weight portion concentrated sulfuric acid, then
Sequentially add 2 parts by weight of sodium hydroxide, 12 weight portion gelatine, 108 weight portion water, under 2800 ~ 3500rpm stirring mixing 5 ~
10min, is mixed.
3. the manufacture method of a kind of aerated coal ash concrete building block according to claim 1, it is characterised in that：Institute
The efficient mortar densification powder stated is by 70 weight parts of fine coal ash, 50 weight portion semi-hydrated gypsums, 65 weight parts of quicklime, 8 weight portion powder
Shape sodium metasilicate, 5 weight portion calcium lignosulfonates, 40 weight portion anhydrous sodium sulfates, in dry ball carry out ball milling mixing and make, Jing Guoqiu
The efficient mortar thickening powder fineness that mill is processed is 270 mesh ~ 325 mesh.
4. the manufacture method of a kind of aerated coal ash concrete building block according to claim 1, it is characterised in that：Institute
The mixed slurry D fineness stated is 170 ~ 200 mesh.
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| CN101172819A (en) * | 2007-10-29 | 2008-05-07 | 苏州金通新型建材有限公司 | Autoclaved aerated concrete building block and manufacturing method thereof |
| CN102219546B (en) * | 2011-04-15 | 2012-09-19 | 杜世永 | Preparation technology for slag foamed concrete block |
| CN102690094A (en) * | 2012-05-17 | 2012-09-26 | 同济大学 | Energy-saving and waste-utilizing concrete block or board and production method thereof |
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