CN105948803A - Preparing method for aerated concrete products - Google Patents
Preparing method for aerated concrete products Download PDFInfo
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- CN105948803A CN105948803A CN201610382125.4A CN201610382125A CN105948803A CN 105948803 A CN105948803 A CN 105948803A CN 201610382125 A CN201610382125 A CN 201610382125A CN 105948803 A CN105948803 A CN 105948803A
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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
- C04B28/10—Lime cements or magnesium oxide cements
- C04B28/12—Hydraulic lime
-
- 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
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
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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
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
- C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
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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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention relates to a preparing method for aerated concrete products. The method comprises the steps of preparation of dry mortar, preparation of mixed slurry, foaming forming, normal-pressure curing, autoclaved curing and the like. When the dry mortar is prepared, waste of aeration concrete blocks is recycled, and the problem that waste of aeration concrete blocks is difficult to dispose is solved. In addition, according to the technical scheme, both the problem of pollution of coal ash blocks and the problem of low compressive strength of coal ash blocks are solved, the production cost is guaranteed, and thus remarkable economic benefits are achieved.
Description
Technical field
The present invention relates to the preparation method of a kind of aerated concrete products, belong to aerated concrete products technical field.
Background technology
Air entrained concrete is a kind of light porous, New Building Materials of insulation.It is used primarily in filling wall and partition wall, and does not undertake load.Air entrained concrete raw materials for production enrich, it is raw material especially with flyash, industrial residue can be comprehensively utilized, curb environmental pollution, do not destroy arable land, good Social benefit and economic benefit can be created again, it is a kind of preferable materials for wall substituting traditional solid clay brick, for many years by the support energetically of national policy.
Concrete product garbage is in enterprise's daily production activity, the class waste products often occurred, can be the substandard products of edge damage arrisdefect, the finished product broken into pieces, also has the leftover pieces being to cut down before steam press maintenance greatly.They are often deposited on the vacant lot of enterprise for a long time.But, it is also a kind of resource being re-used.But owing to this kind of dead meal is that multiple material is made, it has many kinds of substance composition, or loose structure, and intensity is the highest, thus can not by its simply ground after directly as gravel use.As utilized, needing to redesign formula, this directly influences the quality of product.
Summary of the invention
The invention solves the problems that above-mentioned technical problem, thus the preparation method of a kind of aerated concrete products is provided.
Its technical scheme is as follows:
The preparation method of a kind of aerated concrete products, comprises the following steps:
A, prepare dry mortar
By cement, quick lime, Gypsum Fibrosum, goods dead meal, aluminium powder, it is sufficiently stirred in dry mortar blender, prepares dry mortar；
B, mixed slurry processed
Adding suitable quantity of water in above-mentioned dry mortar, stir, prepare mixed slurry one, then add aqueous epoxy resins in mixed slurry one, the addition of aqueous epoxy resins is the 10-20wt% of cement quality；
C, foaming
In above-mentioned mixed slurry, add foam stabilizer and hydrogen peroxide, pour into after stirring and mould is carried out pour molding；
D, ordinary pressure curing
The goods pouring molding are removed from the molds, are placed in maintenance 4-10h in the environment of warm moist；
E, steam press maintenance
Goods are sent in still kettle, prepare through evacuation, increasing temperature and pressure, constant temperature and pressure, decrease temperature and pressure four-stage；
In described dry mortar, the mass parts of each material is as follows: cement 20-50, quick lime 20-50, Gypsum Fibrosum 5-10, sandstone 50-80, goods dead meal 50-100, aluminium powder 0.05-0.1；
Described goods dead meal is the particle diameter obtained after broken classification by the discarded goods granular material less than 0.1mm.
Concrete product garbage is in enterprise's daily production activity, the class waste products often occurred, can be the substandard products of edge damage arrisdefect, the finished product broken into pieces, also has the leftover pieces being to cut down before steam press maintenance greatly.
By said products garbage by after small-sized jaw crushing crusher machine, available granule not of uniform size, big at about 10cm, little at below 1cm, in the majority with 2-5cm.Owing to the intensity of this kind of garbage is the highest, the gmatjpdumamics of jaw crusher is big, and therefore crushing efficiency is the highest.After jaw crushing crusher machine simple crushing, then pulverize through ball mill, for avoiding airborne dust, be preferred with wet grinding.After ball mill discharging, granularity is up to about 0.4mm.After rinsing or embathing, the fine aggregate of available high-quality, can sell as product, it is possible to replace sandstone as raw material with the usage part of 10-20wt% replacement amount, under conditions of not reducing intensity, reduce production cost.After rinsing or embathing, remaining water, after adding polyacrylamide flocculant, produce substantial amounts of flocculent deposit, after filtration, these flocculent deposits collect, becoming fine powder after drying or drying, granularity is at below 0.1mm even at below 0.01mm, and proportion is slightly above flyash, and not pollutant such as sulfur-bearing, nitrogen, heavy metal, it is the desirable alternative raw material of flyash.
In prior art, generally use the flyash of vast scale to go brickmaking, there is inexpensive, the advantage of light weight, but flyash is sulfur-bearing, nitrogenous, a class inorganic matter containing heavy metal, has certain contaminative, and its intensity is low.Therefore, a lot of consumers and do not like use this series products.And replace to flyash build by laying bricks or stones with light-weight aggregate, then will significantly improve cost.If replacing with conventional sandstone, cost also can improve, and more mainly improves the weight of goods.
Therefore, the present inventor is after comprehensive study, it is proposed that the scheme re-used by products waste.In the program, in addition to traditional cement, Calx, Gypsum Fibrosum, aluminium powder, sandstone and goods dead meal are also added with it.Sandstone improves the weight of product to a certain extent, but its addition is few, and the interpolation of sandstone can significantly improve comprcssive strength.And, this locality abounds with building stones, and bargh's building stones mine tailing is difficult to dispose.Therefore, the use of sandstone, the production cost of this product can't be significantly improved.Enterprise entrusts Shanghai Jianke Inspection Co., Ltd that it has been carried out special analysis, chemical examination simultaneously, confirms that dioxide-containing silica, more than 87%, can meet the quality standard of raw materials for production completely.
In the program, goods dead meal is the leftover pieces that cut down before the substandard products of edge damage arrisdefect, the finished product broken into pieces or steam press maintenance after the most broken, fine grinding, the most scrubbed obtain washings, it is washed out water to be precipitated after flocculating sedimentation, then precipitation is dried up a kind of fine powder of rear gained, this powder footpath is slightly above flyash at below 0.1mm, proportion.The most broken can use jaw crusher；Fine grinding can use ball mill, is especially preferred with wet grinding；Washings are preferred with polyacrylamide precipitation.
In the program, it is also possible to the particle diameter that ball mill wet grinding is obtained building stones after the washing of below 0.4mm, substitute above-mentioned sandstone with the consumption part of 10-20wt%, production cost can be reduced further.
The aquation of cement is had and interferes significantly on by polymer emulsion: the first stage, after polymer emulsion mixes concrete or mortar in whipping process, the polymer beads in emulsion is evenly distributed in cement slurry, forms polymer water slurry body.In this system, along with the aquation of cement, cement gel gradually forms, and the Ca (OH) in liquid phase2Reach saturation.Meanwhile, polymer beads is deposited on the surface of cement gel (can comprise unhydrated cement in gel) granule.The Ca (OH) that this process is similar in aqueous phase2Silicate reaction with mineral aggregate surface forms the process of one layer of gel of calcium silicate.Second stage, with the minimizing of rate of water added, cement gel structure is in development, and polymer is gradually limited in capillary porosity, and along with carrying out further of aquation, the water yield in capillary porosity is reducing, and polymer beads flocculates together.Form polymeric sealing layer on the surface of hydrated cementitious gel (including unhydrated cement granules), polymeric sealing layer has also bondd the surface of particles of aggregates and the hydrated cementitious gel surface with unhydrated cement particle mixture.Therefore, the large hole gap in mixture is filled by cementitious polymer.Owing to the capillary porosity size in cement slurry is between 0.2～2 μm, and polymer particle sizes is typically between 0.05～0.5 μm, so this theory thinking that polymer beads is filled primarily with in cement slurry hole is acceptable.Phase III, due to constantly carrying out of hydration process, the moisture content between polymer beads agglomerated together is gradated by the hydration process of cement and becomes chemical bonding water, and final polymer beads is coagulated together formation continuous print polymeric web structure completely.Polymeric web structure is bound up cement-hydrate, together with i.e. cement-hydrate is woven with polymer, thus improves the configuration of Behavior of Hardened Cement Paste.
It is to say, hydrated cementitious and polymer film forming are carried out simultaneously, eventually form cement mortar be interweaved with polymeric film together with inierpeneirating network structure.Have can the polymer of reactive group may be with the silicate generation chemical reaction of solid calcium hydroxide surface or aggregate surface, this chemical reaction is expected to improve the bonding between hydrolysis product of cement and aggregate, thus improves the performance of concrete and mortar.
Therefore, in general, the technical scheme that the present invention proposes, it is possible not only to solve the problem that powdered coal ash product pollutes, also solves the problem that powdered coal ash product comprcssive strength is the highest, and production cost is protected, there is obvious economic benefit.
In technique scheme of the present invention, steam press maintenance comprises four-stage:
One, air in still kettle is got rid of.This is the exothermic coefficient in order to improve steam, reduces heat transmission resistance, increases quantity of steam, improves steam pressure, increases vapor (steam) temperature in still, to accelerate the maintenance of goods.The method that in eliminating still, air uses has three kinds, i.e. blind enema, vacuumizing method, in early days rapid pressure method, the method typically taking evacuation.
Two, the increasing temperature and pressure stage.Refer to logical steam in still, steam and goods reach the pressure of regulation, this process of temperature.In this stage, cause crack because adobe surface and internal difference in temperature are inconsistent for avoiding the internal three's excessive temperature differentials of steam in still, the adobe of adobe surface, it is necessary to controlling programming rate, therefore programming rate can not too soon, and general control is advisable 1.5～2h.
Three, the constant temperature and pressure stage.It starts to starting decrease temperature and pressure during this period of time from the maximum pressure and temperature reaching regulation in being primarily referred to as still kettle, in order to ensure being normally carried out of hydration reaction, Dinas brickes is made to have enough intensity, must control that the steam pressure of Dinas brickes maintenance is minimum to reach 0.8 Mpa, reaching as high as 1.5 Mpa, the constant temperature and pressure time is 4～6h.
Four, blood pressure lowering temperature-fall period.In still, start to discharge steam cooling be depressurized to goods and go out the still stage.This stage by avoiding the occurrence of the goods caused due to pressure reduction and excessive temperature differentials and cruelly splitting, loose and intensity decline, decrease temperature and pressure speed can not be too fast, and general control is 1.5～2h.
Preferred as technique scheme, also includes hypromellose and sodium lignin sulfonate in described dry mortar, the mass parts of hypromellose is 0.02-0.2, and the mass parts of sodium lignin sulfonate is 0.5-2.0.
Hypromellose, has certain water retention property, it is also possible to reduce cement consumption；Especially in cement hydration process, it is to avoid dehydration is too fast and affects being normally carried out of cement aquation, even stops aquation；The hydration of cement can not complete, and causes concrete loosely organized, or forms desciccation crack, the serious intensity reducing concrete.Its effect mainly improves the dispersibility of cement-sand, significantly improves plasticity and the water-retaining property of mortar, effective to preventing crackle, can strengthen strength of cement.
After concrete adds water reducer sodium lignin sulfonate, the hydrophobic group oriented adsorption of water reducer is in the surface of cement granules, hydrophilic group points to aqueous solution, constitute unimolecule or polymolecular adsorbed film, cement granules is made to be disperseed because surface identical charges is mutually exclusive, unnecessary moisture is discharged, to reach the purpose of diminishing between granule.Meanwhile, owing to reducing the interfacial tension between the surface tension of water and cement granules, in the case of maintaining like fluidity, reduce water consumption accordingly, thus also function to the effect of diminishing.
Additionally, sodium lignin sulfonate is as a kind of anionic surfactant, also there is certain steady bubble effect.After hydrogen peroxide and aluminium powder react, a large amount of micro-bubble can be produced, and make concrete become air entrained concrete, significantly decrease the unit weight of goods, also improve the heat-proof quality of goods.But owing to these micro-bubbles have unstability, easily overflow from goods so that aerating effect is had a greatly reduced quality.After employing foam stabilizer, it is remarkably improved the effect of aerating.Generally foam stabilizer uses stearic acid, oleic acid and its esters.And the present invention uses silicone amide, it is easy to use, wettability is strong, consumption is few, integrated cost is low, is the preferable additive of high-quality air entrained concrete production.It addition, sodium lignin sulfonate also has certain foam stabilizing effect.Hydroxypropyl methyl cellulose and redispersible emulsion polymer powder also enhance the viscosity of mortar, the most beneficially holding of bubble.Therefore, the goods of the present invention have the advantages that aerating is effective, even if after employing products waste replacement flyash, employing the material that ore in sand form isodensity is bigger, also can control unit weight at 500-700kg/m3.The effect of this aerating is in addition to because slightly improving the usage amount of hydrogen peroxide and aluminium powder, also as employ rational foam stabilizer；And the use of sodium lignin sulfonate hydroxypropyl methyl cellulose and redispersible emulsion polymer powder also plays considerable effect.
Further preferred as technique scheme, also includes reinforcing fiber in described dry mortar, the mass parts of reinforcing fiber is 0.01-0.05.
The use of reinforcing fiber, further enhances the intensity of the present invention.In addition to the raising of comprcssive strength, also give the present invention preferably toughness so that it is be difficult to be crashed to pieces.This enhances it the most significantly for the curable grip following closely embedded part.So use the present invention materials for wall after, it is possible to mount all kinds of thing on the wall assorted, such as closet, wall built-up accepting rack, picture frame, decorative panel, it is also possible to mount some household electrical appliances, as indoor apparatus of air conditioner, water heater, television set, wall fan, wall lamp, etc..And in prior art, this kind of thing is assorted to be typically only capable to be arranged on load bearing wall, and cannot be arranged on the wall that aerated concrete products is built by laying bricks or stones.
Further preferred as technique scheme, described reinforcing fiber is aramid fiber.
Reinforcing fiber can be Plant fiber or chemical fibre, but is excellent with the aramid fiber in chemical fibre.Aramid fiber not only increases intensity, also add resistance to impact, makes fragment of brick be difficult to break into pieces.
Preferred as technique scheme, described foam stabilizer is silicone amide.
Another kind as technique scheme is preferred, and described foam stabilizer is polyacrylamide.
Preferred as technique scheme, in the step preparing mortar, adds anion surfactant in water, then introduces air under mechanical action, so that producing a large amount of foam；Remove mix dry mortar with this water containing a large amount of foams, make mixed slurry.Owing to slurry containing the material such as sodium lignin sulfonate hydroxypropyl methyl cellulose and redispersible emulsion polymer powder, add the viscosity of mixed slurry so that these foams can stable existence after admixing mortar.On the one hand this is a kind of pre-aerating technology, and what it improve hydrogen peroxide dissolves in speed；On the other hand improve the contact area of hydrogen peroxide and aluminium powder, drastically increase the gas producing efficiency of hydrogen peroxide and aluminium powder, and the viscous effect due to redispersible emulsion polymer powder self and the potentiation for cement granules, this exaggerated aerating effect can not make goods occur in early days from disintegrate, and it is greatly promoted concrete product and becomes aerated concrete products, the problem solving mortar foamed time length.
In sum, the solution of the present invention, both recycled the garbage laid bricks, have adjusted again formula, and reasonable employment additive and redispersible emulsion polymer powder, both improve the efficiency of production, improve again the quality of product, and control production cost, there is significant economic benefit.
Detailed description of the invention
This detailed description of the invention is only explanation of the invention, is not limitation of the present invention.Any change that those skilled in the art are made after the description having read the present invention, as long as in the range of claims, all will be protected by Patent Law.
Embodiment one
The preparation method of a kind of aerated concrete products, comprises the following steps:
A, prepare dry mortar
By cement, quick lime, Gypsum Fibrosum, sandstone, goods dead meal, aluminium powder, it is sufficiently stirred in blender, prepares dry mortar；
B, mixed slurry processed
Adding suitable quantity of water in above-mentioned dry mortar, stir, prepare mixed slurry one, then add aqueous epoxy resins in mixed slurry one, the addition of aqueous epoxy resins is the 10wt% of cement quality；
C, foaming
In above-mentioned mixed slurry, add foam stabilizer and hydrogen peroxide, pour into after stirring and mould is carried out pour molding；
D, ordinary pressure curing
The goods pouring molding are removed from the molds, are placed in maintenance 5h in the environment of warm moist；
E, steam press maintenance
Goods are sent in still kettle, prepare through evacuation, increasing temperature and pressure, constant temperature and pressure, decrease temperature and pressure four-stage；
In described dry mortar, the mass parts of each material is as follows:
Cement 20,
Quick lime 20,
Gypsum Fibrosum 5,
Sandstone 50,
Goods dead meal 50,
Aluminium powder 0.1；
Described goods dead meal is the particle diameter obtained after broken classification by the discarded goods granular material less than 0.1mm.
Embodiment two
The preparation method of a kind of aerated concrete products, comprises the following steps:
A, prepare dry mortar
By cement, quick lime, Gypsum Fibrosum, sandstone, goods dead meal, aluminium powder, it is sufficiently stirred in blender, prepares dry mortar；
B, mixed slurry processed
Adding suitable quantity of water in above-mentioned dry mortar, stir, prepare mixed slurry one, then add aqueous epoxy resins in mixed slurry one, the addition of aqueous epoxy resins is the 14wt% of cement quality；
C, foaming
In above-mentioned mixed slurry, add foam stabilizer and hydrogen peroxide, pour into after stirring and mould is carried out pour molding；
D, ordinary pressure curing
The goods pouring molding are removed from the molds, are placed in maintenance 7h in the environment of warm moist；
E, steam press maintenance
Goods are sent in still kettle, prepare through evacuation, increasing temperature and pressure, constant temperature and pressure, decrease temperature and pressure four-stage；
In described dry mortar, the mass parts of each material is as follows:
Cement 30,
Quick lime 30,
Gypsum Fibrosum 7,
Sandstone 60,
Goods dead meal 70,
Aluminium powder 0.1,
Hypromellose 0.05,
Sodium lignin sulfonate
1.0；
Described goods dead meal is the particle diameter obtained after broken classification by the discarded goods granular material less than 0.1mm.
Embodiment three
The preparation method of a kind of aerated concrete products, comprises the following steps:
A, prepare dry mortar
By cement, quick lime, Gypsum Fibrosum, sandstone, goods dead meal, aluminium powder, it is sufficiently stirred in blender, prepares dry mortar；
B, mixed slurry processed
Adding suitable quantity of water in above-mentioned dry mortar, stir, prepare mixed slurry one, then add aqueous epoxy resins in mixed slurry one, the addition of aqueous epoxy resins is the 18wt% of cement quality；
C, foaming
In above-mentioned mixed slurry, add foam stabilizer and hydrogen peroxide, pour into after stirring and mould is carried out pour molding；
D, ordinary pressure curing
The goods pouring molding are removed from the molds, are placed in maintenance 8h in the environment of warm moist；
E, steam press maintenance
Goods are sent in still kettle, prepare through evacuation, increasing temperature and pressure, constant temperature and pressure, decrease temperature and pressure four-stage；
In described dry mortar, the mass parts of each material is as follows:
Cement 40,
Quick lime 40,
Gypsum Fibrosum 8,
Sandstone 70,
Goods dead meal 80,
Aluminium powder 0.2,
Hypromellose 0.1,
Sodium lignin sulfonate 1.5,
Described concrete product dead meal is the particle diameter obtained after broken classification by the discarded goods granular material less than 0.1mm.
Embodiment four
The preparation method of a kind of aerated concrete products, comprises the following steps:
A, prepare dry mortar
By cement, quick lime, Gypsum Fibrosum, sandstone, goods dead meal, aluminium powder, it is sufficiently stirred in blender, prepares dry mortar；
B, mixed slurry processed
Adding suitable quantity of water in above-mentioned dry mortar, stir, prepare mixed slurry one, then add aqueous epoxy resins in mixed slurry one, the addition of aqueous epoxy resins is the 20wt% of cement quality；
C, foaming
In above-mentioned mixed slurry, add foam stabilizer and hydrogen peroxide, pour into after stirring and mould is carried out pour molding；
D, ordinary pressure curing
The goods pouring molding are removed from the molds, are placed in maintenance 10h in the environment of warm moist；
E, steam press maintenance
Goods are sent in still kettle, prepare through evacuation, increasing temperature and pressure, constant temperature and pressure, decrease temperature and pressure four-stage；
In described dry mortar, the mass parts of each material is as follows:
Cement 50,
Quick lime 50,
Gypsum Fibrosum 10,
Sandstone 80,
Goods dead meal 100,
Aluminium powder 0.2,
Hypromellose 0.5,
Sodium lignin sulfonate 2,
Reinforcing fiber 0.05；
Described concrete product dead meal is the particle diameter obtained after broken classification by the discarded goods granular material less than 0.1mm.
Described reinforcing fiber is aramid fiber.
According to GB/T 11969-2008 " steam-pressing aero-concrete method for testing performance "；
| Comprcssive strength (MPa) | Unit weight (kg/cm3) | Drying shrinkage value (mm/m) | Freeze rear intensity (MPa) | Heat conductivity (W/mk) | |
| Embodiment one | 7.5 | 720 | 0.43 | 4.6 | 0.35 |
| Embodiment two | 8.1 | 680 | 0.44 | 5.1 | 0.31 |
| Embodiment three | 7.8 | 620 | 0.35 | 6.3 | 0.26 |
| Embodiment four | 9.2 | 570 | 0.36 | 5.7 | 0.18 |
Claims (6)
1. a preparation method for aerated concrete products, comprises the following steps:
A, prepare dry mortar
By cement, quick lime, Gypsum Fibrosum, sandstone, goods dead meal, aluminium powder, it is sufficiently stirred in blender, prepares dry mortar；
B, mixed slurry processed
Adding suitable quantity of water in above-mentioned dry mortar, stir, prepare mixed slurry one, then add aqueous epoxy resins in mixed slurry one, the addition of aqueous epoxy resins is the 10-20wt% of cement quality；
C, foaming
In above-mentioned mixed slurry, add foam stabilizer and hydrogen peroxide, pour into after stirring and mould is carried out pour molding；
D, ordinary pressure curing
The goods pouring molding are removed from the molds, are placed in maintenance 4-10h in the environment of warm moist；
E, steam press maintenance
Goods are sent in still kettle, prepare through evacuation, increasing temperature and pressure, constant temperature and pressure, decrease temperature and pressure four-stage；
In described dry mortar, the mass parts of each material is as follows: cement 20-50, quick lime 20-50, Gypsum Fibrosum 5-10, sandstone
50-80, goods dead meal 50-100, aluminium powder 0.1-0.2；
Described goods dead meal is the particle diameter obtained after broken classification by the discarded goods granular material less than 0.1mm.
The preparation method of a kind of aerated concrete products the most according to claim 1, it is characterized in that: described dry mortar also includes hypromellose and sodium lignin sulfonate, the mass parts of hypromellose is 0.02-0.5, and the mass parts of sodium lignin sulfonate is 0.5-2.0.
The preparation method of a kind of aerated concrete products the most according to claim 1, it is characterised in that: also including reinforcing fiber in described dry mortar, the mass parts of reinforcing fiber is 0.01-0.05.
The preparation method of a kind of aerated concrete products the most according to claim 3, it is characterised in that: described reinforcing fiber is aramid fiber.
The preparation method of a kind of aerated concrete products the most according to claim 1, it is characterised in that: described foam stabilizer is silicone amide.
The preparation method of a kind of aerated concrete products the most according to claim 1, it is characterised in that: described foam stabilizer is polyacrylamide.
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| CN106830775A (en) * | 2016-12-15 | 2017-06-13 | 阜阳市华顺水泥制品有限公司 | A kind of insulation corrosion resistant type reinforced concrete sewer pipe containing glass bead and preparation method thereof |
| CN106966644A (en) * | 2017-04-11 | 2017-07-21 | 商洛学院 | A kind of composition and method for making cement board |
| CN107151124A (en) * | 2017-06-01 | 2017-09-12 | 云南坤瑞泰隆建材科技股份有限公司 | A kind of steam-pressing aero-concrete thin layer decorative mortar |
| CN110606680A (en) * | 2019-09-30 | 2019-12-24 | 浙江杭加泽通建筑节能新材料有限公司 | Comprehensive utilization method and system for aerated concrete waste |
| CN113072350A (en) * | 2021-03-30 | 2021-07-06 | 海南广胜新型建材有限公司 | Autoclaved aerated brick and preparation method thereof |
| CN115925382A (en) * | 2023-01-05 | 2023-04-07 | 安徽省润乾节能建材科技股份有限公司 | Preparation method of porous autoclaved sand brick |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103755274A (en) * | 2013-12-24 | 2014-04-30 | 济南大学 | Aerated concrete block and preparation method thereof |
| CN104311106A (en) * | 2014-09-30 | 2015-01-28 | 淄博铭城建材有限公司 | Autoclaved aerated concrete plate and preparation method thereof |
| CN105002991A (en) * | 2015-06-18 | 2015-10-28 | 中国建筑材料科学研究总院 | Novel fiber reinforced composite heat insulation plate and preparing method of novel fiber reinforced composite heat insulation plate |
-
2016
- 2016-06-02 CN CN201610382125.4A patent/CN105948803A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103755274A (en) * | 2013-12-24 | 2014-04-30 | 济南大学 | Aerated concrete block and preparation method thereof |
| CN104311106A (en) * | 2014-09-30 | 2015-01-28 | 淄博铭城建材有限公司 | Autoclaved aerated concrete plate and preparation method thereof |
| CN105002991A (en) * | 2015-06-18 | 2015-10-28 | 中国建筑材料科学研究总院 | Novel fiber reinforced composite heat insulation plate and preparing method of novel fiber reinforced composite heat insulation plate |
Non-Patent Citations (8)
| Title |
|---|
| （美）科斯马特卡等: "《混凝土设计与控制》", 30 June 2005, 重庆大学出版社 * |
| 刘红飞等: "《建筑外加剂》", 28 February 2006, 中国建筑工业出版社 * |
| 朱宏军等: "《特种混凝土和新型混凝土》", 30 April 2004, 化学工业出版社 * |
| 杨伟军等: "《蒸压粉煤灰加气混凝土砌块生产及应用技术》", 31 October 2011, 中国建筑工业出版社 * |
| 杨红霞: "《商品混凝土质量与成本控制技术》", 30 June 2014, 中国建材工业出版社 * |
| 杨霞林等: "《混凝土结构设计原理》", 31 August 2014, 人民交通出版社股份有限公司 * |
| 沈春林: "《聚合物水泥防水砂浆》", 30 September 2007, 化学工业出版社 * |
| 陈建奎: "《混凝土外加剂的原理与应用》", 30 April 1997, 中国计划出版社 * |
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| CN106747032A (en) * | 2016-12-15 | 2017-05-31 | 阜阳市华顺水泥制品有限公司 | Enhanced corrosion resistant type reinforced concrete sewer pipe of a kind of glass coating and preparation method thereof |
| CN106810186A (en) * | 2016-12-15 | 2017-06-09 | 阜阳市华顺水泥制品有限公司 | A kind of impervious wear-resisting type reinforced concrete sewer pipe of the resistance to compression of hydrated glass and preparation method thereof |
| CN106830776A (en) * | 2016-12-15 | 2017-06-13 | 阜阳市华顺水泥制品有限公司 | Good corrosion resistant type reinforced concrete sewer pipe of a kind of anti-carbonation properties and preparation method thereof |
| CN106830775A (en) * | 2016-12-15 | 2017-06-13 | 阜阳市华顺水泥制品有限公司 | A kind of insulation corrosion resistant type reinforced concrete sewer pipe containing glass bead and preparation method thereof |
| CN106966644A (en) * | 2017-04-11 | 2017-07-21 | 商洛学院 | A kind of composition and method for making cement board |
| CN107151124A (en) * | 2017-06-01 | 2017-09-12 | 云南坤瑞泰隆建材科技股份有限公司 | A kind of steam-pressing aero-concrete thin layer decorative mortar |
| CN110606680A (en) * | 2019-09-30 | 2019-12-24 | 浙江杭加泽通建筑节能新材料有限公司 | Comprehensive utilization method and system for aerated concrete waste |
| CN113072350A (en) * | 2021-03-30 | 2021-07-06 | 海南广胜新型建材有限公司 | Autoclaved aerated brick and preparation method thereof |
| CN115925382A (en) * | 2023-01-05 | 2023-04-07 | 安徽省润乾节能建材科技股份有限公司 | Preparation method of porous autoclaved sand brick |
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