CN108726942A - A kind of air-mixed concrete pieces and preparation method thereof - Google Patents
A kind of air-mixed concrete pieces and preparation method thereof Download PDFInfo
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- CN108726942A CN108726942A CN201810725231.7A CN201810725231A CN108726942A CN 108726942 A CN108726942 A CN 108726942A CN 201810725231 A CN201810725231 A CN 201810725231A CN 108726942 A CN108726942 A CN 108726942A
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Classifications
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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
-
- 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
Abstract
The present invention discloses a kind of air-mixed concrete pieces and preparation method thereof, is 1 by solid-liquid ratio：The slurry of 70-83 is made, and the slurry includes the material of following parts by weight：8-12 parts of cement, 16-24 parts of lime, 53.6-80.4 parts of ceramic mud, 2.4-3.6 parts of gypsum, 7.2-10.8 parts of aluminium powder cream；The wherein described ceramic mud is mixed together by ceramic tile polishing waste material, NaOH, lignin sulfonic acid analog high efficiency water reducing agent and water, preparation method include raw material storage with prepare, dispensing stirring, the processes such as moulding by casting and precuring, high-pressure curing, it is the air-mixed concrete pieces fire prevention of the present invention, noise reduction, heat preservation, heat-insulated, with breathing humidity conditioning function, light weight, compression strength are high；It directly utilizes ceramic tile polishing waste material, reduces and inhibit hardened and environmental pollution sprawling of the industrial residue to periphery soil, and certain economic results in society are played to curbing environmental pollution, improving building function.
Description
Technical field
The present invention relates to building material technical fields more particularly to a kind of air-mixed concrete pieces and preparation method thereof.
Background technology
Concrete, referred to as " concrete (t ó ng) " are one of the present age most important civil engineering materials.It is by gelling material
Material, granular aggregat (also referred to as aggregate), water and the additive being added when necessary and admixture are prepared by a certain percentage, through equal
Even stirring, closely knit molding, a kind of artificial stone material made of maintenance hardening.Concrete has abundant raw material, cheap, produces work
The simple feature of skill, thus keep its dosage increasing.Concrete includes normal concrete and air entrained concrete etc., aerating coagulation
Soil is with siliceous material (sand, flyash and containing silicon tailings etc.) and calcareous material (lime, cement) for primary raw material, and admixture is got angry
Agent (aluminium powder), the light porous silicate made of the technical process such as dispensing, stirring, cast, precuring, cutting, steam pressure, maintenance
Product, because it contains a large amount of uniform and tiny stomatas, therefore named air entrained concrete after getting angry.
Air entrained concrete is a kind of porous silicate property, is made of pore structure and hole wall, various physical and mechanical properties
Depending on the concrete structure after steam press maintenance, the physics characteristic of hole wall is as general silicate concrete, by calcareous material
The type and quantity of material and a series of hydrated products of the siliceous material generated in hydrothermal treatment process determine, and make aerating
Concrete has the reason of certain physical and mechanical property；The pore structure of air entrained concrete, it is not only mixed just like same general silicate
Microcellular structure as solidifying soil, also aluminium powder are formed by stomata, these have pole to the physical and mechanical property of air entrained concrete
Big influence.However existing air entrained concrete cost is higher, or cannot achieve the integration of energy-saving heat preserving.
Invention content
It is an object of the invention to overcome defect described in the prior art, to provide a kind of air-mixed concrete pieces and its
Preparation method, air-mixed concrete pieces of the invention fire prevention, noise reduction, heat preservation, heat-insulated, the suitable energy saving building for building any standard,
Have the function of " to breathe " " damping ", light weight, compression strength are high, are truly realized energy-saving heat preserving integration, with the building same service life
Green building thermal insulation material；The preparation method of the present invention directly utilizes ceramic tile polishing waste material, reduces and inhibits
Hardened and environmental pollution sprawling of the industrial residue to periphery soil rises in curb environmental pollution, improve building function etc.
Certain economic results in society are arrived.
To achieve the goals above, the present invention provides the following technical solutions：
A kind of air-mixed concrete pieces are 1 by solid-liquid ratio：The slurry of 70-83 is made, and the slurry includes following parts by weight
Material：
8-12 parts of cement, 16-24 parts of lime, 53.6-80.4 parts of ceramic mud, 2.4-3.6 parts of gypsum, aluminium powder cream 7.2-
10.8 parts；The wherein described ceramic mud is stirred by the mixing of ceramic tile polishing waste material, NaOH, lignin sulfonic acid analog high efficiency water reducing agent and water
It mixes.
Preferably：The slurry includes the material of following parts by weight：
10 parts of cement, 20 parts of lime, 67 parts of ceramic mud, 3 parts of gypsum, 9 parts of aluminium powder cream.
Preferably：The ceramic tile polishing waste material, NaOH, lignin sulfonic acid analog high efficiency water reducing agent mass ratio be 1:
0.013:0.27-0.43。
Preferably：The solid-liquid ratio of the ceramic mud is 1:1.6-1.65, the preparation method of the ceramic mud is by institute
Ceramic tile polishing waste material ball milling 0.4-0.6h under the rate of 300-400r/min is stated, the powder that grain fineness is 150-200 mesh is obtained
Material, the NaOH, lignin sulfonic acid analog high efficiency water reducing agent and water are then added into the powder and continuously stirs 2-3min, i.e.,
?.
A method of the air-mixed concrete pieces are prepared, are included the following steps：
(1) raw material storage and preparation：The ceramic mud and the desulfurated plaster are mixed with beating, it is 55- to obtain solid content
65% slurry, while the aluminium powder cream is formulated as aluminium powder liquid with spare；
(2) dispensing stirs：The quick lime, cement and the aluminium powder liquid are sequentially added in the slurry and carried out in proportion
It is mixed, obtains mixed slurry；
(3) moulding by casting and precuring：The mixed slurry is poured into mold and carries out precuring, gets angry and expands to obtain green body；
(4) high-pressure curing：It is steam-cured to get air-mixed concrete pieces that the green body is subjected to steam.
Preferably：A concentration of the 10% of aluminium powder liquid described in step (1).
Preferably：The time being mixed described in step (2) is 120-220s.
Preferably：Precuring described in step (3) be by the mold for being perfused with slurry be heated to 50-70 DEG C get angry it is swollen
It is swollen.
Further：Precuring described in step (3) carries out in the xeothermic precuring room of tunnel type.
Preferably：The steam-cured pressure of steam described in step (4) is 1.1-1.2Mpa.
Further：Step (4) is carrying out also having carried out machine cuts before steam is steam-cured, and the machine cuts use 4.8
Cutting machine when the aerial overturning of × 1.2m.
Compared with prior art, the invention has the advantages that：
(1) present invention directly prepares major ingredient of the ceramic mud as air-mixed concrete pieces using ceramic tile polishing waste material, subtracts
Less and hardened and environmental pollution sprawling of the industrial residue to periphery soil is inhibited, is curbing environmental pollution, improving building work(
Energy etc. plays certain economic results in society；
The ceramic mud of the present invention is mixed by ceramic tile polishing waste material, NaOH, lignin sulfonic acid analog high efficiency water reducing agent and water
It stirs, wherein NaOH and lignin sulfonic acid analog high efficiency water reducing agent form compound additive, and the combination of the two can improve pottery
Repulsion between porcelain polished waste material particle improves the stable dispersion of system and the mobility of ceramic mud and seepage of water, in turn
Improve absorption slip rate when molding；
The present invention is added to aluminium powder cream, the 8-12 parts by weight of 7.2-10.8 parts by weight for traditional concrete
Cement, the lime of 16-24 parts by weight and the gypsum of 2.4-3.6 parts by weight, aluminium powder cream in process of production with above-mentioned material
In silica and quick lime occur chemical reaction release gas, generate with porous structure hydrated product, above-mentioned
The type and quantity of lower the produced hydrated product of proportioning make the compression strength of the present invention and heat-insulating property obtain significantly
Promotion；
(2) the ceramic tile polishing waste material, NaOH of the present invention, the mass ratio of lignin sulfonic acid analog high efficiency water reducing agent are set as 1:
0.013:The solid-liquid ratio of 0.27-0.43, ceramic mud are set as 1:1.6-1.65 is because under this condition, NaOH can will make pottery
The pH value of porcelain mud becomes neutral from acidity, under the neutrallty condition, when volume is within the scope of 0.27%-0.43%, and lignin
The solidifying effect of the solution of sulfonic acid analog high efficiency water reducing agent is best, why is herein because wooden using lignin sulfonic acid analog high efficiency water reducing agent
Plain sulfonic acid analog high efficiency water reducing agent can make ceramic mud set apart and be reduced to relatively low water in the case where incorporation is relatively fewer
Flat, all fine in 0.27%-0.43% range internal mobilities, this is conducive to produce control；
(3) ceramic tile polishing waste material is ground to the powder of 150-200 mesh by the present invention, is the physical strength because of concrete
There is prodigious association with the grain fineness of material, certainly, in the present invention, in addition to the grain size of powder is 150-200 mesh, lime
Grain fineness is also 150-200 mesh, because being found through inventor's test of many times, the material of the grain fineness can improve aerating and mix
The uniformity of soil is coagulated, while reducing digestion time；
(4) preparation method of the invention is used quick lime, cement and aluminium powder liquid in proportion successively in dispensing whipping step
It is added in slurry and is mixed, be because can make the more uniform of stirring first, in accordance with sequence addition, in addition most
Addition aluminium powder liquid is then to increase the usage amount of aluminium powder liquid because if that adds is too early afterwards；In addition to this present invention preferably stirs
It is 120-220s to mix the time, is that material condensation phenomenon can occur, and if mixing time mistake because if mixing time is long
Short, then each material can not be effectively uniformly mixed, and the two can reduce the properties of product of air entrained concrete；
(5) present invention first carries out precuring before high-pressure curing under conditions of 50 DEG C to 70 DEG C, it is made steadily to get angry
Expansion thereby may be ensured that the raising rate of slurry is adapted with its bodying velocity, and slurry is made normally to get angry in mold expansion
To specified altitude, does not generate and feel suffocated, bubbling, collapse mould or hair is discontented with the bad phenomenon of mould, promote to have got angry in mold normal yet
Green body accelerates hardening to shorten the normal firm time of green body to shorten the production cycle；When steam is steam-cured using the height of 1.1-1.2Mpa
Pressure maintenance can make green body reach 175 DEG C of hydrothermal temperature.
Shown in sum up, the present invention has many advantages, such as fire prevention, noise reduction, heat preservation, heat-insulated, the suitable Energy-saving Building for building any standard
It builds, has the function of " to breathe " " damping ", light weight, compression strength are high, are truly realized energy-saving heat preserving integration, reach the Seventh Five-Year Plan section
It can require, with building with the green building thermal insulation material in service life.Compared with traditional fly ash building block, it is not necessarily to two in the construction process
Artificial and material is saved in secondary heat preservation, reduces by 50 yuan/square of external wall of building cost above by the direct of ceramic tile polishing waste material
Utilize, reduce and inhibit hardened and environmental pollution sprawling of the industrial residue to periphery soil, to it is energy saving, using useless
Slag, curbing environmental pollution, improve building function etc. plays certain economic results in society.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the process flow diagram of the present invention；
Specific implementation mode
Technical scheme of the present invention will be clearly and completely described below, it is clear that described embodiment is this hair
Bright a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not having
There is the every other embodiment obtained under the premise of making creative work, shall fall within the protection scope of the present invention.In addition, below
Involved technical characteristic as long as they do not conflict with each other can be mutual in described different embodiments of the present invention
In conjunction with.
Embodiment 1：
It is 1 by solid-liquid ratio as shown in Figure 1, the present invention provides a kind of air-mixed concrete pieces：70 slurry is made, described
Slurry includes the material of following parts by weight：8 parts of cement, 16 parts of lime, 53.6 parts of ceramic mud, 2.4 parts of gypsum, aluminium powder cream 7.2
Part；The wherein described ceramic mud is 1 by water and mass ratio:0.013:0.27 ceramic tile polishing waste material, NaOH, lignin sulfonic acid
Analog high efficiency water reducing agent mixes together, and the solid-liquid ratio of ceramic mud is 1:1.6；
A kind of preparation method of air-mixed concrete pieces, includes the following steps：
(1) the ball milling 0.4h under the rate of 300r/min respectively by ceramic tile polishing waste material and lime, obtaining grain fineness is
The pulverized limestone and powder of 150 mesh, the pulverized limestone of gained is for use, powder and NaOH, the lignin sulfonic acid analog high efficiency water reducing agent of gained
2min is continuously stirred after being mixed with water, obtains ceramic mud；
(2) it by the ceramic mud and the desulfurated plaster in proportion with forklift to material bin, then feeds and beats through batcher
Stock tank, be made solid content be 55% slurry, be sent by slush pump for use in pulp storage tank；The aluminium powder cream is prepared simultaneously
For concentration be 1/10 at mass concentration aluminium powder liquid with spare；
(3) wherein bulk material (cement, lime) uses electronic measuring scale automatic gauge, and aluminium powder cream, water, ceramic mud
Equal liquids are measured using automatic gauge tank, then in proportion sequentially add the quick lime, cement and the aluminium powder liquid
In the slurry, (stirs casting machine using fixed point pouring procedure to be fixed on a certain position, will have been pressed on proportioning building and determined ratio
The various materials that prepare of example are according in the precedence input stirring casting machine of charging) it 120s is mixed forms uniform mixture
Slurry, is put into immediately after in moveable mold, and mold is sent into the xeothermic precuring room of tunnel type at 50-70 DEG C by ferry bus
At a temperature of get angry and be expanded into green body；
(4) green body is steam-cured using the saturated vapor progress of 1.1Mpa in still kettle planted agent, you can to obtain air entrained concrete
Block.
Embodiment 2：
It is 1 by solid-liquid ratio as shown in Figure 1, the present invention provides a kind of air-mixed concrete pieces：75 slurry is made, described
Slurry includes the material of following parts by weight：10 parts of cement, 20 parts of lime, 67 parts of ceramic mud, 3 parts of gypsum, 9 parts of aluminium powder cream；Its
Described in ceramic mud by water and mass ratio be 1:0.013:0.31 ceramic tile polishing waste material, NaOH, sulfomethylated lignin acids are high
Effect water-reducing agent mixes together, and the solid-liquid ratio of ceramic mud is 1:1.62；
A kind of preparation method of air-mixed concrete pieces, includes the following steps：
(1) the ball milling 0.5h under the rate of 350r/min respectively by ceramic tile polishing waste material and lime, obtaining grain fineness is
The pulverized limestone and powder of 180 mesh, the pulverized limestone of gained is for use, powder and NaOH, the lignin sulfonic acid analog high efficiency water reducing agent of gained
2min is continuously stirred after being mixed with water, obtains ceramic mud；
(2) it by the ceramic mud and the desulfurated plaster in proportion with forklift to material bin, then feeds and beats through batcher
Stock tank, be made solid content be 60% slurry, be sent by slush pump for use in pulp storage tank；The aluminium powder cream is prepared simultaneously
For concentration be 1/10 at mass concentration aluminium powder liquid with spare；
(3) wherein bulk material (cement, lime) uses electronic measuring scale automatic gauge, and aluminium powder cream, water, ceramic mud
Equal liquids are measured using automatic gauge tank, then in proportion sequentially add the quick lime, cement and the aluminium powder liquid
In the slurry, (stirs casting machine using fixed point pouring procedure to be fixed on a certain position, will have been pressed on proportioning building and determined ratio
The various materials that prepare of example are according in the precedence input stirring casting machine of charging) it 200s is mixed forms uniform mixture
Slurry, is put into immediately after in moveable mold, and mold is sent into the xeothermic precuring room of tunnel type in 60 DEG C of temperature by ferry bus
It gets angry under degree and is expanded into green body；
(4) select 4.8 × 1.2m in the air convertible cutting machine by the green body after hardening in turnover traveling through overturning 90 ° after
It completes longitudinal sectional, crosscutting on edge-on cutting machine, so that the green body of bottom plate there was only vertical joint-cutting, without horizontal joint-cutting, be then combined into
Two moulds, one vehicle, 6 vehicles are arranged into still kettle for one and are conserved, wherein the waste material cut repeats profit after can sending useless slurry stirring pool slurrying back to
With；
(5) aerated-block green body is steam-cured using the saturated vapor progress of 1.2Mpa in still kettle planted agent, you can be added
Gas concrete block.
Embodiment 3：
It is 1 by solid-liquid ratio as shown in Figure 1, the present invention provides a kind of air-mixed concrete pieces：83 slurry is made, described
Slurry includes the material of following parts by weight：12 parts of cement, 24 parts of lime, 80.4 parts of ceramic mud, 3.6 parts of gypsum, aluminium powder cream
10.8 parts；The wherein described ceramic mud is 1 by water and mass ratio:0.013:0.43 ceramic tile polishing waste material, NaOH, lignin
Sulfonic acid analog high efficiency water reducing agent mixes together, and the solid-liquid ratio of ceramic mud is 1:1.65；
A kind of preparation method of air-mixed concrete pieces, includes the following steps：
(1) the ball milling 0.6h under the rate of 400r/min respectively by ceramic tile polishing waste material and lime, obtaining grain fineness is
The pulverized limestone and powder of 200 mesh, the pulverized limestone of gained is for use, powder and NaOH, the lignin sulfonic acid analog high efficiency water reducing agent of gained
3min is continuously stirred after being mixed with water, obtains ceramic mud；
(2) it by the ceramic mud and the desulfurated plaster in proportion with forklift to material bin, then feeds and beats through batcher
Stock tank, be made solid content be 65% slurry, be sent by slush pump for use in pulp storage tank；The aluminium powder cream is prepared simultaneously
For concentration be 1/10 at mass concentration aluminium powder liquid with spare；
(3) wherein bulk material (cement, lime) uses electronic measuring scale automatic gauge, and aluminium powder cream, water, ceramic mud
Equal liquids are measured using automatic gauge tank, then in proportion sequentially add the quick lime, cement and the aluminium powder liquid
In the slurry, (stirs casting machine using fixed point pouring procedure to be fixed on a certain position, will have been pressed on proportioning building and determined ratio
The various materials that prepare of example are according in the precedence input stirring casting machine of charging) it 220s is mixed forms uniform mixture
Slurry, is put into immediately after in moveable mold, and mold is sent into the xeothermic precuring room of tunnel type in 70 DEG C of temperature by ferry bus
It gets angry under degree and is expanded into green body；
(4) select 4.8 × 1.2m in the air convertible cutting machine by the green body after hardening in turnover traveling through overturning 90 ° after
It completes longitudinal sectional, crosscutting on edge-on cutting machine, so that the green body of bottom plate there was only vertical joint-cutting, without horizontal joint-cutting, be then combined into
Two moulds, one vehicle, 6 vehicles are arranged into still kettle for one and are conserved, wherein the waste material cut repeats profit after can sending useless slurry stirring pool slurrying back to
With；
(5) aerated-block green body is steam-cured using the saturated vapor progress of 1.15Mpa in still kettle planted agent, you can be added
Gas concrete block.
The foregoing is merely the specific implementation modes of the present invention, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, all answer by the change or replacement that can be readily occurred in
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be with the scope of the claims
It is accurate.
Claims (10)
1. a kind of air-mixed concrete pieces, which is characterized in that by solid-liquid ratio be 1：The slurry of 70-83 is made, the slurry include with
The material of lower parts by weight：
8-12 parts of cement, 16-24 parts of lime, 53.6-80.4 parts of ceramic mud, 2.4-3.6 parts of gypsum, aluminium powder cream 7.2-10.8
Part；The wherein described ceramic mud by ceramic tile polishing waste material, NaOH, lignin sulfonic acid analog high efficiency water reducing agent and water be mixed and
At.
2. air-mixed concrete pieces according to claim 1, which is characterized in that the slurry includes the object of following parts by weight
Material：
10 parts of cement, 20 parts of lime, 67 parts of ceramic mud, 3 parts of gypsum, 9 parts of aluminium powder cream.
3. air-mixed concrete pieces according to claim 1, which is characterized in that the ceramic tile polishing waste material, NaOH, wooden
The mass ratio of plain sulfonic acid analog high efficiency water reducing agent is 1:0.013:0.27-0.43.
4. air-mixed concrete pieces according to any one of claim 1-3, which is characterized in that the feed liquid of the ceramic mud
Than being 1:1.6-1.65, the preparation method of the ceramic mud be by the ceramic tile polishing waste material 300-400r/min speed
Ball milling 0.4-0.6h under rate obtains the powder that grain fineness is 150-200 mesh, the NaOH, wood is then added into the powder
Quality sulfonic acid analog high efficiency water reducing agent and water continuously stir 2-3min to get.
5. a kind of method preparing the air-mixed concrete pieces as described in any one of claim 1-4, which is characterized in that including following
Step：
(1) raw material storage and preparation：The ceramic mud and the desulfurated plaster are mixed with beating, it is 55-65% to obtain solid content
Slurry, while the aluminium powder cream is formulated as aluminium powder liquid with spare；
(2) dispensing stirs：The quick lime, cement and the aluminium powder liquid are sequentially added in the slurry and mixed in proportion
Stirring, obtains mixed slurry；
(3) moulding by casting and precuring：The mixed slurry is poured into mold and carries out precuring, gets angry and expands to obtain green body；
(4) high-pressure curing：It is steam-cured to get air-mixed concrete pieces that the green body is subjected to steam.
6. according to the method described in claim 5, it is characterized in that, a concentration of 10% of aluminium powder liquid described in step (1).
7. according to the method described in claim 5, it is characterized in that, the time being mixed described in step (2) is 120-
220s。
8. according to the method described in claim 5, it is characterized in that, precuring described in step (3) is that will be perfused with the mould of slurry
Tool is heated to 50-70 DEG C and carries out expansion of getting angry.
9. according to the method described in claim 5, it is characterized in that, the steam-cured pressure of steam described in step (4) is 1.1-
1.2Mpa。
10. according to the method described in claim 5, it is characterized in that, step (4) is carrying out also having carried out machinery before steam is steam-cured
Cutting, the cutting machine when machine cuts use the aerial overturning of 4.8 × 1.2m.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810725231.7A CN108726942A (en) | 2018-07-04 | 2018-07-04 | A kind of air-mixed concrete pieces and preparation method thereof |
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| CN201810725231.7A CN108726942A (en) | 2018-07-04 | 2018-07-04 | A kind of air-mixed concrete pieces and preparation method thereof |
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| CN113563037A (en) * | 2021-06-21 | 2021-10-29 | 广东盖特奇新材料科技有限公司 | Aerated concrete block prepared by replacing part of ground fine sand with waste ceramic polishing sludge and preparation method thereof |
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