CN110204353A - A kind of efficient precast concrete plate and preparation method thereof - Google Patents
A kind of efficient precast concrete plate and preparation method thereof Download PDFInfo
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- CN110204353A CN110204353A CN201910505966.3A CN201910505966A CN110204353A CN 110204353 A CN110204353 A CN 110204353A CN 201910505966 A CN201910505966 A CN 201910505966A CN 110204353 A CN110204353 A CN 110204353A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/52—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement
- B28B1/522—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement for producing multi-layered articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/52—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement
- B28B1/525—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement containing organic fibres, e.g. wood fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/40—Mixing specially adapted for preparing mixtures containing fibres
-
- 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
-
- 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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/02—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding chemical blowing agents
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight materials
-
- 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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Wood Science & Technology (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of efficient precast concrete plate, the following raw materials: 25~45 parts by weight of flyash, 25~45 parts by weight of stalk fibre, 15~25 parts by weight of cement, 15~30 parts by weight of fine sand, 5~12 parts by weight of diatomite, 3~15 parts by weight of precipitated calcium carbonate, 3~12 parts by weight of polyaluminium alumina particles, 15~48 parts by weight of lightweight aggregate, 0.5~1.5 parts by weight of water-reducing agent, 3~15 parts by weight of foaming agent, 4~15 parts by weight of quick lime, 5~15 parts by weight of rubber powder material.First is that concrete plate toughness can be increased, mitigate concrete plate self weight, intensity meets construction requirement；Second is that the light porous cavity plate material produced using stalk fibre, simple production process, securely and reliably, low energy consumption, can effectively improve building self weight and thermal and insulating performance；Third is that stalk itself is used as agricultural wastes, burning will cause serious atmosphere pollution, efficiently uses in this application as main raw material(s), is the environment-friendly materials integrated application as a kind of green.
Description
Technical field
The invention belongs to building material technical field, specifically a kind of efficient precast concrete plate and its preparation
Method.
Background technique
Prefabricated armored concrete plate-type component.In building construction, mainly there are wallboard, floor and roof boarding；These three
Plate sometimes can be general mutually.The main steel splitting reinforced concrete of concrete plate and prestressed concrete two major classes, also have plenty of and answer
With other reinforcements, such as steel wire, steel fibre or other fibers.
Assembled large panel building is assembled with prefabricated inside and outside wall board, floor, roof boarding and other prefabricated components.Its
Inside and outside wall board is mostly 1 piece of a standard width of a room in an old-style house, but also has two standard widths of a room in an old-style house even 1 piece of three standard width of a room in an old-style house.General lining load-bearing, mostly uses label
For No. 200 normal concrete cored slabs and solid slab, production technology mostly uses in groups or in pairs formwork erection, also has using flat-die work
Skill.The general self-supporting of Side fascia has the requirement of the multiple functions such as heat-insulated, waterproof, finishing concurrently, thus mostly uses high-efficiency insulated material
Expect the composite plate (or sandwich plate) and bulk density of (such as polystyrene foam plastics, mineral wool, air entrained concrete) and armored concrete
Lower than the light aggregate concrete plate of 1200 kg/ms 3.Production mostly uses the works such as fixed flat-die, flat-die flowing water and unit flowing water
Skill, while so that exterior finish is reached finishing requirements using various ways.Floor substantially can be general with roof boarding, mostly using mark
It number is 200~No. 300 solid or hollow plates of concrete.Production technology is substantially similar to Side fascia.These plates are also wanted
Pay attention to the Construction treatment of node seam.The wastes such as stalk are not carried out in the preparation that the precast concrete plate of existing preparation is deposited
Effective use, stalk is a kind of more cavity fibrous matters of lightweight, is used in concrete plate for increasing concrete plate each side
The property in face plays an important role.
Summary of the invention
In order to solve above-mentioned deficiency in the prior art, the purpose of the present invention is to provide a kind of efficient precast concretes
Plate and preparation method thereof.The present invention first is that can increase concrete plate toughness, applies by mitigation concrete plate self weight, intensity satisfaction
Work requirement, has broad application prospects；Second is that the light porous cavity plate material produced using stalk fibre, simple production process,
Securely and reliably, low energy consumption, can effectively improve building self weight and thermal and insulating performance；Third is that stalk itself is used as agriculture waste
Object, burning will cause serious atmosphere pollution, efficiently use in this application as main raw material(s), be as a kind of green
The environment-friendly materials integrated application of color；Fourth is that effective application of light straw fibrous plate will during current Process of Urbanization Construction
It benefits the society, contributes for human kind sustainable development
The technical solution adopted by the present invention to solve the technical problems are as follows: an aspect of of the present present invention provides a kind of efficient pre-
Concrete plate processed, the following raw material formed by weight percentage: 25~45 parts by weight of flyash, 25~45 weight of stalk fibre
Part, 15~25 parts by weight of cement, 15~30 parts by weight of fine sand, 5~12 parts by weight of diatomite, 3~15 parts by weight of precipitated calcium carbonate,
3~12 parts by weight of polyaluminium alumina particles, 15~48 parts by weight of lightweight aggregate, 0.5~1.5 parts by weight of water-reducing agent, foaming agent 3~15
Parts by weight, 4~15 parts by weight of quick lime, 5~15 parts by weight of rubber powder material.
Preferably, the foaming agent includes aluminium powder and magnesia, and the weight ratio of the aluminium powder and magnesia be 2:3~
3:2, the aluminium polychloride grain graininess are 0.1~0.2cm.
Preferably, the foaming agent includes aluminium powder and magnesia, and the weight ratio of the aluminium powder and magnesia is 2:3,
The aluminium polychloride grain graininess is 0.1cm.
Preferably, the efficient precast concrete plate further include: steel mesh, the steel mesh are in double-spiral structure
It is distributed in efficient precast concrete plate, and the steel mesh is along the length direction of the efficient precast concrete plate
It is arranged in parallel.
Preferably, the efficient precast concrete plate further include: 1~5 parts by weight of reinforcing fiber, the enhancing are fine
Dimension is selected from least one of polypropylene fibre, poly fibre, glass fibre and plant fiber.
Preferably, the efficient precast concrete plate further include: 1~3 parts by weight of kaolin or bentonite.
Preferably, the following raw material formed by weight percentage: 25 parts by weight of flyash, 25 parts by weight of stalk fibre,
15 parts by weight of cement, 15 parts by weight of fine sand, 5 parts by weight of diatomite, 3 parts by weight of precipitated calcium carbonate, 3 weight of polyaluminium alumina particles
Part, 15 parts by weight of lightweight aggregate, 0.5 parts by weight of water-reducing agent, 3 parts by weight of foaming agent, 4 parts by weight of quick lime, 5 parts by weight of rubber powder material.
Preferably, the following raw material formed by weight percentage: 45 parts by weight of flyash, 45 parts by weight of stalk fibre,
25 parts by weight of cement, 30 parts by weight of fine sand, 12 parts by weight of diatomite, 15 parts by weight of precipitated calcium carbonate, polyaluminium alumina particles 12
Parts by weight, 48 parts by weight of lightweight aggregate, 1.5 parts by weight of water-reducing agent, 15 parts by weight of foaming agent, 15 parts by weight of quick lime, rubber powder material 15
Parts by weight.
Preferably, the water-reducing agent is selected from NF type water-reducing agent, FDN type water-reducing agent, the type of UNF~2 water-reducing agent, AF type diminishing
At least one of agent, S type water-reducing agent and MF type water-reducing agent.
Another aspect of the present invention provides the preparation method of efficient precast concrete plate, comprising the following steps:
Step S01: by 25~45 parts by weight of flyash, 25~45 parts by weight of stalk fibre, 15~25 parts by weight of cement, thin
15~30 parts by weight of sand, 5~12 parts by weight of diatomite, 4~15 parts by weight of quick lime are uniformly mixed under mechanical agitation
Powders mixture；Mixing speed is controlled at 400~600 revs/min, temperature stirs 0.5~1 hour at 35~40 degrees Celsius；
Step S02: by 3~15 parts by weight of precipitated calcium carbonate, 3~12 parts by weight of polyaluminium alumina particles, lightweight aggregate 15~
48 parts by weight, 5~15 parts by weight of rubber powder material, which are mixed and added into suitable water and are stirring uniformly to obtain mixture, is added above-mentioned powder
Continue to add water and stir to obtain mixed mortar in mixture, mixing speed is 1000~1200 revs/min, and it is small to continue 0.1~0.2
When, temperature is at 45~55 degrees Celsius；Kaolin or bentonite are added in obtained mixed mortar, and stirs evenly；
Step S03: after 0.5~1.5 parts by weight of water-reducing agent, 3~15 parts by weight auxiliary agent of foaming agent are uniformly dispersed in water
It is added in above-mentioned mixed mortar, continues 60~150s of stirring, stir evenly pre- to pour mortar；
Step S04: steel mesh is fixed in moulding box in parallel, and first one layer is uniformly injected into moulding box pours mortar in advance, so
Afterwards into moulding box inject one layer of building thermal insulation material of precoating, finally reinject and pour mortar, pour into pour mortar during,
Reinforcing fiber is added, mortar and reinforcing fiber uniformly mix, and up to casting complete and are cooled to room temperature, wherein moulding box surrounding is poured
Building material is described pre- to pour mortar；
Step S05: by the concrete slab feeding temperature after casting complete be 35~40 degrees Celsius, humidity is 40~50%
Stationary indoors of resting conserve 1~2 hour；
Step S06: after maintenance, being demoulded, cut, groove milling obtains the plate idiosome of corresponding size, is then fed into
Continue maintenance 0.1~0.5 hour in the resting room that temperature is 50~60 degrees Celsius, humidity is 80~90%, after be sent into steam
Steam-cured, and kettle out is carried out in pressure kettle.
The present invention has the advantage that compared with prior art
Advantage of the present invention is obvious: first is that can increase concrete plate toughness, mitigating concrete plate self weight, intensity satisfaction is applied
Work requirement, has broad application prospects；Second is that the light porous cavity plate material produced using stalk fibre, simple production process,
Securely and reliably, low energy consumption, can effectively improve building self weight and thermal and insulating performance；Third is that stalk itself is used as agriculture waste
Object, burning will cause serious atmosphere pollution, efficiently use in this application as main raw material(s), be as a kind of green
The environment-friendly materials integrated application of color；Fourth is that effective application of light straw fibrous plate will during current Process of Urbanization Construction
It benefits the society, contributes for human kind sustainable development.
Detailed description of the invention
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, the application's is other
Feature, objects and advantages will become more apparent upon:
Fig. 1 is the preparation method flow chart of efficient precast concrete plate of the invention.
Specific embodiment
The application is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining related invention, rather than the restriction to the invention.It also should be noted that in order to
Convenient for description, part relevant to invention is illustrated only in attached drawing.
It is not useless to stalk etc. in the preparation that the precast concrete plate for the existing preparation introduced as background technique is deposited
Object is efficiently used, and stalk is a kind of more cavity fibrous matters of lightweight, is used in concrete plate for increasing concrete slab
The property of material various aspects plays an important role.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Embodiment 1, an aspect of of the present present invention provide a kind of efficient precast concrete plate, form by weight percentage
The following raw material: 25 parts by weight of flyash, 25 parts by weight of stalk fibre, 15 parts by weight of cement, 15 parts by weight of fine sand, 5 weight of diatomite
Measure part, 3 parts by weight of precipitated calcium carbonate, 3 parts by weight of polyaluminium alumina particles, 15 parts by weight of lightweight aggregate, 0.5 parts by weight of water-reducing agent,
3 parts by weight of foaming agent, 4 parts by weight of quick lime, 5 parts by weight of rubber powder material.
In the present embodiment, the foaming agent includes aluminium powder and magnesia, and the weight ratio of the aluminium powder and magnesia is 2:
3, the aluminium polychloride grain graininess is 0.1cm.
In the present embodiment, the efficient precast concrete plate further include: steel mesh, the steel mesh are in double helix knot
Structure is distributed in efficient precast concrete plate, and the steel mesh is along the length side of the efficient precast concrete plate
To being arranged in parallel.
In the present embodiment, the efficient precast concrete plate further include: 1 parts by weight of reinforcing fiber, the enhancing are fine
Dimension is selected from least one of polypropylene fibre, poly fibre, glass fibre and plant fiber.
In the present embodiment, the efficient precast concrete plate further include: 1 parts by weight of kaolin or bentonite.
In the present embodiment, the water-reducing agent is selected from NF type water-reducing agent, FDN type water-reducing agent, the type of UNF~2 water-reducing agent, AF type and subtracts
At least one of aqua, S type water-reducing agent and MF type water-reducing agent.
Another aspect of the present invention provides the preparation method of efficient precast concrete plate, comprising the following steps:
Step S01: by 25 parts by weight of flyash, 25 parts by weight of stalk fibre, 15 parts by weight of cement, 15 parts by weight of fine sand,
5 parts by weight of diatomite, 4 parts by weight of quick lime are uniformly mixed to obtain powders mixture under mechanical agitation；Control mixing speed
At 400 revs/min, temperature stirs 0.5 hour at 35 degrees Celsius；
Step S02: by 3 parts by weight of precipitated calcium carbonate, 3 parts by weight of polyaluminium alumina particles, 15 parts by weight of lightweight aggregate, rubber powder
Expect that 5 parts by weight are mixed and added into suitable water and are stirring uniformly to obtain mixture and are added in above-mentioned powders mixture to continue that water is added to stir
It mixes to obtain mixed mortar, mixing speed is 1000 revs/min, continues 0.1 hour, temperature is at 45 degrees Celsius；Obtained mixed sand
Kaolin or bentonite are added in slurry, and stirs evenly；
Step S03: it is added after 0.5 parts by weight of water-reducing agent, 3 parts by weight auxiliary agent of foaming agent are uniformly dispersed in water above-mentioned mixed
It closes in mortar, continues to stir 60s, stir evenly pre- to pour mortar；
Step S04: steel mesh is fixed in moulding box in parallel, and first one layer is uniformly injected into moulding box pours mortar in advance, so
Afterwards into moulding box inject one layer of building thermal insulation material of precoating, finally reinject and pour mortar, pour into pour mortar during,
Reinforcing fiber is added, mortar and reinforcing fiber uniformly mix, and up to casting complete and are cooled to room temperature, wherein moulding box surrounding is poured
Building material is described pre- to pour mortar；
Step S05: it is 35 degrees Celsius, in the resting room that humidity is 40% that the concrete slab after casting complete, which is sent into temperature,
Static maintenance 1 hour；
Step S06: after maintenance, being demoulded, cut, groove milling obtains the plate idiosome of corresponding size, is then fed into
Continue in the resting room that temperature is 50 degrees Celsius, humidity is 80% maintenance 0.1 hour, after be sent into still kettle in steamed
It supports, and kettle out.
Embodiment 2, an aspect of of the present present invention provide a kind of efficient precast concrete plate, form by weight percentage
The following raw material: 30 parts by weight of flyash, 30 parts by weight of stalk fibre, 18 parts by weight of cement, 20 parts by weight of fine sand, 8 weight of diatomite
Measure part, 8 parts by weight of precipitated calcium carbonate, 6 parts by weight of polyaluminium alumina particles, 25 parts by weight of lightweight aggregate, 1 parts by weight of water-reducing agent, hair
8 parts by weight of gas agent, 8 parts by weight of quick lime, 8 parts by weight of rubber powder material.
In the present embodiment, the foaming agent includes aluminium powder and magnesia, and the weight ratio of the aluminium powder and magnesia is 2:
2, the aluminium polychloride grain graininess is 0.15cm.
In the present embodiment, the efficient precast concrete plate further include: steel mesh, the steel mesh are in double helix knot
Structure is distributed in efficient precast concrete plate, and the steel mesh is along the length side of the efficient precast concrete plate
To being arranged in parallel.
In the present embodiment, the efficient precast concrete plate further include: 2 parts by weight of reinforcing fiber, the enhancing are fine
Dimension is selected from least one of polypropylene fibre, poly fibre, glass fibre and plant fiber.
In the present embodiment, the efficient precast concrete plate further include: 2 parts by weight of kaolin or bentonite.
In the present embodiment, the water-reducing agent is selected from NF type water-reducing agent, FDN type water-reducing agent, the type of UNF~2 water-reducing agent, AF type and subtracts
At least one of aqua, S type water-reducing agent and MF type water-reducing agent.
Another aspect of the present invention provides the preparation method of efficient precast concrete plate, comprising the following steps:
Step S01: by 30 parts by weight of flyash, 30 parts by weight of stalk fibre, 18 parts by weight of cement, 20 parts by weight of fine sand,
8 parts by weight of diatomite, 8 parts by weight of quick lime are uniformly mixed to obtain powders mixture under mechanical agitation；Control mixing speed
At 500 revs/min, temperature stirs 0.8 hour at 38 degrees Celsius；
Step S02: by 8 parts by weight of precipitated calcium carbonate, 6 parts by weight of polyaluminium alumina particles, 25 parts by weight of lightweight aggregate, rubber powder
Expect that 8 parts by weight are mixed and added into suitable water and are stirring uniformly to obtain mixture and are added in above-mentioned powders mixture to continue that water is added to stir
It mixes to obtain mixed mortar, mixing speed is 1100 revs/min, continues 0.15 hour, temperature is at 50 degrees Celsius；Obtained mixed sand
Kaolin or bentonite are added in slurry, and stirs evenly；
Step S03: above-mentioned mixing is added after 1 parts by weight of water-reducing agent, 8 parts by weight auxiliary agent of foaming agent are uniformly dispersed in water
In mortar, continues to stir 100s, stir evenly pre- to pour mortar；
Step S04: steel mesh is fixed in moulding box in parallel, and first one layer is uniformly injected into moulding box pours mortar in advance, so
Afterwards into moulding box inject one layer of building thermal insulation material of precoating, finally reinject and pour mortar, pour into pour mortar during,
Reinforcing fiber is added, mortar and reinforcing fiber uniformly mix, and up to casting complete and are cooled to room temperature, wherein moulding box surrounding is poured
Building material is described pre- to pour mortar；
Step S05: it is 38 degrees Celsius, in the resting room that humidity is 45% that the concrete slab after casting complete, which is sent into temperature,
Static maintenance 1.5 hours；
Step S06: after maintenance, being demoulded, cut, groove milling obtains the plate idiosome of corresponding size, is then fed into
Continue in the resting room that temperature is 55 degrees Celsius, humidity is 85% maintenance 0.3 hour, after be sent into still kettle in steamed
It supports, and kettle out.
Embodiment 3, an aspect of of the present present invention provide a kind of efficient precast concrete plate, form by weight percentage
The following raw material: 35 parts by weight of flyash, 35 parts by weight of stalk fibre, 22 parts by weight of cement, 25 parts by weight of fine sand, 10 weight of diatomite
Measure part, 10 parts by weight of precipitated calcium carbonate, 10 parts by weight of polyaluminium alumina particles, 35 parts by weight of lightweight aggregate, 1 parts by weight of water-reducing agent,
10 parts by weight of foaming agent, 10 parts by weight of quick lime, 10 parts by weight of rubber powder material.
In the present embodiment, the foaming agent includes aluminium powder and magnesia, and the weight ratio of the aluminium powder and magnesia is 2:
2, the aluminium polychloride grain graininess is 0.2cm.
In the present embodiment, the efficient precast concrete plate further include: steel mesh, the steel mesh are in double helix knot
Structure is distributed in efficient precast concrete plate, and the steel mesh is along the length side of the efficient precast concrete plate
To being arranged in parallel.
In the present embodiment, the efficient precast concrete plate further include: 3 parts by weight of reinforcing fiber, the enhancing are fine
Dimension is selected from least one of polypropylene fibre, poly fibre, glass fibre and plant fiber.
In the present embodiment, the efficient precast concrete plate further include: 2 parts by weight of kaolin or bentonite.
In the present embodiment, the water-reducing agent is selected from NF type water-reducing agent, FDN type water-reducing agent, the type of UNF~2 water-reducing agent, AF type and subtracts
At least one of aqua, S type water-reducing agent and MF type water-reducing agent.
Another aspect of the present invention provides the preparation method of efficient precast concrete plate, comprising the following steps:
Step S01: by 35 parts by weight of flyash, 35 parts by weight of stalk fibre, 22 parts by weight of cement, 25 parts by weight of fine sand,
10 parts by weight of diatomite, 10 parts by weight of quick lime are uniformly mixed to obtain powders mixture under mechanical agitation；Control stirring speed
At 500 revs/min, temperature stirs 0.8 hour degree at 38 degrees Celsius；
Step S02: by 10 parts by weight of precipitated calcium carbonate, 10 parts by weight of polyaluminium alumina particles, 15~48 weight of lightweight aggregate
Part, 5~15 parts by weight of rubber powder material are mixed and added into suitable water and are stirring uniformly to obtain mixture and above-mentioned powders mixture is added
In continue to add water and stir to obtain mixed mortar, mixing speed is 1000~1200 revs/min, continues 0.1~0.2 hour, temperature
At 45~55 degrees Celsius；Kaolin or bentonite are added in obtained mixed mortar, and stirs evenly；
Step S03: it is added after 1 parts by weight of water-reducing agent, 10 parts by weight auxiliary agent of foaming agent are uniformly dispersed in water above-mentioned mixed
It closes in mortar, continues to stir 100s, stir evenly pre- to pour mortar；
Step S04: steel mesh is fixed in moulding box in parallel, and first one layer is uniformly injected into moulding box pours mortar in advance, so
Afterwards into moulding box inject one layer of building thermal insulation material of precoating, finally reinject and pour mortar, pour into pour mortar during,
Reinforcing fiber is added, mortar and reinforcing fiber uniformly mix, and up to casting complete and are cooled to room temperature, wherein moulding box surrounding is poured
Building material is described pre- to pour mortar；
Step S05: it is 38 degrees Celsius, in the resting room that humidity is 45% that the concrete slab after casting complete, which is sent into temperature,
Static maintenance 1.5 hours；
Step S06: after maintenance, being demoulded, cut, groove milling obtains the plate idiosome of corresponding size, is then fed into
Continue in the resting room that temperature is 55 degrees Celsius, humidity is 85% maintenance 0.4 hour, after be sent into still kettle in steamed
It supports, and kettle out.
Embodiment 4, an aspect of of the present present invention provide a kind of efficient precast concrete plate, form by weight percentage
The following raw material: 45 parts by weight of flyash, 45 parts by weight of stalk fibre, 25 parts by weight of cement, 30 parts by weight of fine sand, 12 weight of diatomite
Measure part, 15 parts by weight of precipitated calcium carbonate, 12 parts by weight of polyaluminium alumina particles, 48 parts by weight of lightweight aggregate, 1.5 weight of water-reducing agent
Part, 15 parts by weight of foaming agent, 15 parts by weight of quick lime, 15 parts by weight of rubber powder material.
In the present embodiment, the foaming agent includes aluminium powder and magnesia, and the weight ratio of the aluminium powder and magnesia is 3:
2, the aluminium polychloride grain graininess is 0.2cm.
In the present embodiment, the efficient precast concrete plate further include: steel mesh, the steel mesh are in double helix knot
Structure is distributed in efficient precast concrete plate, and the steel mesh is along the length side of the efficient precast concrete plate
To being arranged in parallel.
In the present embodiment, the efficient precast concrete plate further include: 5 parts by weight of reinforcing fiber, the enhancing are fine
Dimension is selected from least one of polypropylene fibre, poly fibre, glass fibre and plant fiber.
In the present embodiment, the efficient precast concrete plate further include: 3 parts by weight of kaolin or bentonite.
In the present embodiment, the water-reducing agent is selected from NF type water-reducing agent, FDN type water-reducing agent, the type of UNF~2 water-reducing agent, AF type and subtracts
At least one of aqua, S type water-reducing agent and MF type water-reducing agent.
Another aspect of the present invention provides the preparation method of efficient precast concrete plate, comprising the following steps:
Step S01: by 45 parts by weight of flyash, 45 parts by weight of stalk fibre, 25 parts by weight of cement, 30 parts by weight of fine sand,
12 parts by weight of diatomite, 15 parts by weight of quick lime are uniformly mixed to obtain powders mixture under mechanical agitation；Control stirring speed
At 600 revs/min, temperature stirs 1 hour degree at 40 degrees Celsius；
Step S02: by 15 parts by weight of precipitated calcium carbonate, 12 parts by weight of polyaluminium alumina particles, 48 parts by weight of lightweight aggregate, glue
15 parts by weight of powder, which are mixed and added into suitable water and are stirring uniformly to obtain mixture and are added in above-mentioned powders mixture, to be continued to add
Water stirs to get mixed mortar, and mixing speed is 1200 revs/min, continues 0.2 hour, temperature is at 55 degrees Celsius；What is obtained is mixed
It closes and kaolin or bentonite is added in mortar, and stir evenly；
Step S03: it is added after 1.5 parts by weight of water-reducing agent, 15 parts by weight auxiliary agent of foaming agent are uniformly dispersed in water above-mentioned
In mixed mortar, continues to stir 150s, stir evenly pre- to pour mortar；
Step S04: steel mesh is fixed in moulding box in parallel, and first one layer is uniformly injected into moulding box pours mortar in advance, so
Afterwards into moulding box inject one layer of building thermal insulation material of precoating, finally reinject and pour mortar, pour into pour mortar during,
Reinforcing fiber is added, mortar and reinforcing fiber uniformly mix, and up to casting complete and are cooled to room temperature, wherein moulding box surrounding is poured
Building material is described pre- to pour mortar；
Step S05: it is 40 degrees Celsius, in the resting room that humidity is 50% that the concrete slab after casting complete, which is sent into temperature,
Static maintenance 2 hours；
Step S06: after maintenance, being demoulded, cut, groove milling obtains the plate idiosome of corresponding size, is then fed into
Continue in the resting room that temperature is 60 degrees Celsius, humidity is 90% maintenance 0.5 hour, after be sent into still kettle in steamed
It supports, and kettle out.
As shown in the table: table 1 is the proportion design table of aforementioned four embodiment, and table 2 is the plate of aforementioned four embodiment
Material performance comparison table；
1 concrete plate mix-design of table
2 concrete plate performance of table
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.Those skilled in the art
Member is it should be appreciated that invention scope involved in the application, however it is not limited to technology made of the specific combination of above-mentioned technical characteristic
Scheme, while should also cover in the case where not departing from the inventive concept, it is carried out by above-mentioned technical characteristic or its equivalent feature
Any combination and the other technical solutions formed.Such as features described above has similar function with (but being not limited to) disclosed herein
Can technical characteristic replaced mutually and the technical solution that is formed.
Except for the technical features described in the specification, remaining technical characteristic is the known technology of those skilled in the art, is prominent
Innovative characteristics of the invention out, details are not described herein for remaining technical characteristic.
Claims (10)
1. a kind of efficient precast concrete plate, characterized in that the following raw material formed by weight percentage: flyash 25~
45 parts by weight, 25~45 parts by weight of stalk fibre, 15~25 parts by weight of cement, 15~30 parts by weight of fine sand, 5~12 weight of diatomite
Measure part, 3~15 parts by weight of precipitated calcium carbonate, 3~12 parts by weight of polyaluminium alumina particles, 15~48 parts by weight of lightweight aggregate, diminishing
0.5~1.5 parts by weight of agent, 3~15 parts by weight of foaming agent, 4~15 parts by weight of quick lime, 5~15 parts by weight of rubber powder material.
2. efficient precast concrete plate according to claim 1, which is characterized in that the foaming agent include aluminium powder and
Magnesia, and the weight ratio of the aluminium powder and magnesia be 2:3~3:2, the aluminium polychloride grain graininess be 0.1~
0.2cm。
3. efficient precast concrete plate according to claim 2, which is characterized in that the foaming agent include aluminium powder and
Magnesia, and the weight ratio of the aluminium powder and magnesia is 2:3, the aluminium polychloride grain graininess is 0.1cm.
4. efficient precast concrete plate according to claim 1, which is characterized in that the efficient precast concrete
Plate further include: steel mesh, the steel mesh is distributed in efficient precast concrete plate in double-spiral structure, and the steel
Muscle net is arranged in parallel along the length direction of the efficient precast concrete plate.
5. efficient precast concrete plate according to claim 1, which is characterized in that the efficient precast concrete
Plate further include: 1~5 parts by weight of reinforcing fiber, the reinforcing fiber be selected from polypropylene fibre, poly fibre,
At least one of glass fibre and plant fiber.
6. efficient precast concrete plate according to claim 1, which is characterized in that the efficient precast concrete
Plate further include: 1~3 parts by weight of kaolin or bentonite.
7. efficient precast concrete plate according to claim 1, which is characterized in that form by weight percentage as
Lower raw material: 25 parts by weight of flyash, 25 parts by weight of stalk fibre, 15 parts by weight of cement, 15 parts by weight of fine sand, 5 weight of diatomite
Part, 3 parts by weight of precipitated calcium carbonate, 3 parts by weight of polyaluminium alumina particles, 15 parts by weight of lightweight aggregate, 0.5 parts by weight of water-reducing agent, hair
3 parts by weight of gas agent, 4 parts by weight of quick lime, 5 parts by weight of rubber powder material.
8. efficient precast concrete plate according to claim 1, which is characterized in that form by weight percentage as
Lower raw material: 45 parts by weight of flyash, 45 parts by weight of stalk fibre, 25 parts by weight of cement, 30 parts by weight of fine sand, 12 weight of diatomite
Part, 15 parts by weight of precipitated calcium carbonate, 12 parts by weight of polyaluminium alumina particles, 48 parts by weight of lightweight aggregate, 1.5 parts by weight of water-reducing agent,
15 parts by weight of foaming agent, 15 parts by weight of quick lime, 15 parts by weight of rubber powder material.
9. efficient precast concrete plate according to claim 1, which is characterized in that the water-reducing agent is selected from NF type and subtracts
At least one of aqua, FDN type water-reducing agent, the type of UNF~2 water-reducing agent, AF type water-reducing agent, S type water-reducing agent and MF type water-reducing agent.
10. the preparation method of described in any item efficient precast concrete plates according to claim 1~9, which is characterized in that
The following steps are included:
Step S01: by 25~45 parts by weight of flyash, 25~45 parts by weight of stalk fibre, 15~25 parts by weight of cement, fine sand 15
~30 parts by weight, 5~12 parts by weight of diatomite, 4~15 parts by weight of quick lime are uniformly mixed to obtain powder under mechanical agitation
Mixture；Mixing speed is controlled at 400~600 revs/min, temperature stirs 0.5~1 hour at 35~40 degrees Celsius；
Step S02: by 3~15 parts by weight of precipitated calcium carbonate, 3~12 parts by weight of polyaluminium alumina particles, 15~48 weight of lightweight aggregate
Amount part, 5~15 parts by weight of rubber powder material, which are mixed and added into suitable water and are stirring uniformly to obtain mixture, is added above-mentioned powder mixing
Continue to add water and stir to obtain mixed mortar in object, mixing speed is 1000~1200 revs/min, continues 0.1~0.2 hour, temperature
Degree is at 45~55 degrees Celsius；Kaolin or 1~3 parts by weight of bentonite are added in obtained mixed mortar, and stir evenly；
Step S03: it is added after 0.5~1.5 parts by weight of water-reducing agent, 3~15 parts by weight auxiliary agent of foaming agent are uniformly dispersed in water
In above-mentioned mixed mortar, continue 60~150s of stirring, stirs evenly pre- to pour mortar；
Step S04: steel mesh is fixed in moulding box in parallel, and first one layer is uniformly injected into moulding box pours mortar in advance, is then existed
Into moulding box inject one layer of building thermal insulation material of precoating, finally reinject and pour mortar, pour into pour mortar during, be added
Reinforcing fiber, mortar and reinforcing fiber uniformly mix, and up to casting complete and are cooled to room temperature, wherein moulding box surrounding pours material
Material is described pre- to pour mortar；
Step S05: the concrete slab after casting complete is sent into temperature is 35~40 degrees Celsius, humidity is 40~50% to rest
Stationary indoors conserve 1~2 hour；
Step S06: after maintenance, being demoulded, cut, groove milling obtains the plate idiosome of corresponding size, and temperature is then fed into
Continue maintenance in the resting room for being 80~90% for 50~60 degrees Celsius, humidity 0.1~0.5 hour, after be sent into still kettle
Middle progress is steam-cured, and kettle out.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111892338A (en) * | 2020-01-06 | 2020-11-06 | 新疆富力达新型环保建材有限公司 | Autoclaved aerated concrete plate and processing method thereof |
| CN113771187A (en) * | 2021-09-07 | 2021-12-10 | 无锡市信夯硅塑机电有限公司 | Concrete cover plate color-changing process |
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