CN110330290A - A kind of preparation method of high intensity regenerated plastics foam concrete - Google Patents
A kind of preparation method of high intensity regenerated plastics foam concrete Download PDFInfo
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- CN110330290A CN110330290A CN201910539899.7A CN201910539899A CN110330290A CN 110330290 A CN110330290 A CN 110330290A CN 201910539899 A CN201910539899 A CN 201910539899A CN 110330290 A CN110330290 A CN 110330290A
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- 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
- B28C5/38—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions wherein the mixing is effected both by the action of a fluid and by directly-acting driven mechanical means, e.g. stirring means ; Producing cellular concrete
- B28C5/381—Producing cellular concrete
- B28C5/386—Plants; Systems; Methods
- B28C5/388—Methods
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/10—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00017—Aspects relating to the protection of the environment
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight materials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—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
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention relates to a kind of preparation methods of high-intensitive regenerated plastics foam concrete, belong to building material technical field.The present invention is blended by the way that silane coupling agent is modified to waste paper with regenerated plastics, and add carbon fiber, prepare the auxiliary material of regenerated plastics foam concrete, waste paper elasticity modulus with higher can be used as reinforcement of the recycled plastic in concrete, waste paper is under " molecular bridge " effect of vinyltriethoxysilane, covalent bond and complex bonds can be formed between carbon fiber and recycled plastic, vinyltriethoxysilane can form uniform vinyltriethoxysilane monolayer in fiber surface, enhance waste paper, carbon fiber and recycled plastic form the high interface of bond strength in concrete, the mechanical property of concrete is improved, carbon fiber can be effectively entangled with the plant fiber in waste paper, the concrete inner structure that can effectively enrich, improve the inner tight of concrete, to effectively improve the mechanical property of concrete And intensity.
Description
Technical field
The present invention relates to a kind of preparation methods of high-intensitive regenerated plastics foam concrete, belong to building material technology neck
Domain.
Background technique
While more and more common plastic products offer convenience to our production and living, also produce a large amount of discarded
Object.These waste plastics, which once become pollutant, will be permanently present and constantly accumulate, and long-term profound environment is caused to ask
Topic.The waste plastic of accumulation also easily nourishes bacterium simultaneously, usually becomes the source of disease spread, it is therefore necessary to be pocessed.
Due to the stable chemical performance of these waste plastics, so being difficult to carry out natural degradation and rotten processing mode.Allow plastics with
Rubbish fills together not only wastes soil, also will affect crops and other plant on soil and absorbs nutrient and moisture.And it selects
The processing of burning approach, although can temporarily solve the problems, such as, can also generate carcinogenic gas and be detrimental to health.In addition, plastics are stone
Made of oil refines.A large amount of plastics cause also expand the demand to crude oil while environmental pollution, cause to provide by discarding
Source waste.Therefore, how always social problem is dealt carefully with to waste plastic.Currently, most suitable treating method
It is exactly the regeneration that plastic refuse is carried out to physical mechanical formula.By sort, be crushed, wash, drench it is dry, be granulated, dry most
The completion of this series of steps necessary may be dried afterwards.
Common plastics be based on natural or synthesis resin, some of them be additionally added various plastics adjuvants,
Reinforcing material and filler material pass through industrial production machine-shaping under certain conditions, and solid material or product is finally made.Modeling
Material is divided into thermosetting property and thermoplastic, and thermosetting plastics no longer has plasticity after use, continue heating no longer at
Type can not remold regeneration.And thermoplastic can then continue to form, and still have certain intensity and tough after recovery processing
Property, can Reusability, it is high to recycle value.
Foam concrete is as a kind of construction material that energy-efficient performance is excellent, using concrete embodiment in terms of the heat preservation in China
In the following aspects:
(1) foam or chemical blowing process is made directly by foaming agent using physical blowing method in foam concrete heat insulation building block
Be added in cementitious material, and with it is other gather materials, admixture, water and additive etc. mix, rear moulding by casting maintenance is sufficiently stirred
It is made, is mainly technically characterized by the thermal insulation property for inherently having excellent, with the wall roofing of such concrete block masonry, not
In the case where using other Insulations, the building structure thermal norm of itself is the energy conservation standard that can reach national regulation.
Foam concrete wallboard, roof boarding are using foam concrete as basis material, using steel mesh, glass fiber net as strengthening material
Material, or separately add light steel building material or steel framework for made by skeleton.Foam concrete wallboard, roof boarding are both traditional architecture lightweight
The upgrading products of plate, solve that conventional panels thermal property is poor, intensity is low, from great disadvantage, while being also foam coagulation
One of novel leading products of native Transformation Development are the application extension field of foam concrete.
Waste plastic is ground into the particle of different-grain diameter or fragment is directly incorporated into and is configured to new coagulation in concrete
Soil is known as regenerated plastics concrete.Currently, regenerated plastics are applied in concrete also in the laboratory study stage, to regeneration
The research of plastic concrete is actually rare.External research work is mainly replaced by recycled plastic granules or collapsed portion or all
For the fine aggregate in concrete, its various physical and mechanical properties is studied.Foam concrete with its light-weight environment-friendly, heat-and sound-insulating,
The excellent characteristic such as antidetonation fire resisting has very wide application prospect.Current situation and state based on current foam concrete
The requirement of interior low-carbon environment-friendly, green building material, it is intended to make full use of the advantage of regenerated plastics and foam concrete respectively, propose by
Conception of the recycled plastic granules as light aggregate incorporation foam concrete.
After waste PET bottle is processed into particle by Mar etc., in substitution sand incorporation slurry, different substitution rates (2 ~ 100%) are studied
With influence of the plastics to concrete performance under varying particle size (1 ~ 5mm), studies have shown that density of the plastics volume to concrete
There are significant impact effect, the durability of pet polymer being mixed with conducive to concrete, when the volume substitution rate to sand reaches
The particle high limit of size of 50%, 5mm will not influence the compression strength and bending strength of concrete.
Huanghai Sea shore selects regeneration ABS/PC powder to make a service test, the results showed that with the increase of regenerated plastics volume, mixes
The density for coagulating soil rises, and tensile splitting strength persistently rises, and compression strength first increases and subtracts afterwards.Table is gone back in the research of Liu Feng, Li Lijuan etc.
Bright, when the volume of ABS/PC particle is up to 5%, compression strength, tensile splitting strength, flexural strength reach maximum value.
Plastics are one of essential materials in production and living, and waste plastic is unable to natural degradation, by burn or
It buries and solves that load can be brought to environment again.After researcher recycles these waste plastics, cleaning, which is broken into particle, to be become
Regenerated plastics, and be incorporated into concrete and carry out performance study, a new approach is opened up for the re-using of waste plastic.
Summary of the invention
The technical problems to be solved by the invention: the low, poor mechanical property for existing regenerated plastics foam concrete intensity
The problem of, provide a kind of preparation method of high-intensitive regenerated plastics foam concrete.
In order to solve the above technical problems, the technical solution adopted by the present invention is that:
(1) lauryl sodium sulfate is added in 1/5 deionized water, is stirred 1 under room temperature with 100~120r/min revolving speed
~3min obtains foaming agent dilution；
(2) polyvinyl alcohol is added in foaming agent dilution, 4~6min is stirred with 320~360r/min revolving speed under room temperature, must be steeped
Foam system；
(3) flyash, silicon ash, slag are placed in blender, 10 are stirred under room temperature with 180~200r/min revolving speed~
15min obtains mineral mixture；
(4) residue 4/5 is added in cement, mineral mixture, concrete auxiliary material, melamine high-efficiency water-reducing agent, sugar calcium retarder
Deionized water in, be placed in concrete mixer, 6~8min be stirred with 180~220r/min revolving speed under room temperature, obtain mixed
Close slurry；
(5) foam system is added in mixed slurry, 4~6min is stirred with 200~240r/min revolving speed under room temperature, pours into mold
In, standing 20~for 24 hours, obtain high-intensitive regenerated plastics foam concrete.
The cement, concrete auxiliary material, flyash, silicon ash, slag, melamine high-efficiency water-reducing agent, sugar calcium retarder,
Lauryl sodium sulfate, polyvinyl alcohol, tap water parts by weight be 60~80 parts of cement, 12~16 parts of concrete auxiliary materials, 18~
24 parts of flyash, 6~8 parts of silicon ashes, 6~8 parts of slags, 1~3 part of melamine high-efficiency water-reducing agent, 1~3 part of sugar calcium retarder, 3
~4 parts of lauryl sodium sulfate, 6~8 parts of polyvinyl alcohol, 180~240 parts of tap water.
Cement described in step (4) is the portland cement of intensity 42.5.
Mould specification described in step (5) is 100mm × 100mm × 50mm.
The specific preparation step of concrete auxiliary material described in step (4) are as follows:
(1) vinyltriethoxysilane is added to absolute ethanol, under room temperature with 200~240r/min revolving speed stirring 10~
15min obtains vinyltriethoxysilane ethanol solution；
(2) waste paper is placed in vinyltriethoxysilane ethanol solution, with 300~320r/min revolving speed stirring 15 under room temperature
~20min stands 1~2h, filtering, and solid is placed in drying box, and dry 1~2h, obtains modification under conditions of 110~115 DEG C
Waste paper；
(3) modified waste paper, carbon fiber, recycling rubber powder and composite plastic particle are placed in blender, under room temperature with 240~
280r/min revolving speed is stirred 30~40min, obtains mixture；
(4) mixture is placed in 15~20min of mixing in open kneading machine, 1~3min of pressure maintaining, cold moudling is granulated, obtains mixed
Solidifying soil auxiliary material.
The composite plastic particle, carbon fiber, waste paper, recycling rubber powder, vinyltriethoxysilane, dehydrated alcohol
Parts by weight are 40~50 parts of composite plastic particles, 8~10 parts of carbon fibers, 16~20 parts of waste paper, 12~15 parts of recycling rubber powders, 1~3
Part vinyltriethoxysilane, 64~80 parts of dehydrated alcohols.
Compounding conditions described in step (4) are 140~160 DEG C of temperature, 14~16MPa of pressure.
The specific preparation step of composite plastic particle described in step (3) are as follows:
(1) recycle polyethylene, recycling polypropylene are placed in blender, are stirred under room temperature with 300~350r/min revolving speed
20~30min obtains mixed plastic；
(2) mixed plastic is placed in double screw extruder, and antioxidant 1010, antioxidant 4010 is added, with 180~200r/
Min revolving speed extruding pelletization, obtains composite plastic particle.
The recycle polyethylene, recycling polypropylene, antioxidant 1010, antioxidant 4010 parts by weight be 40~60 parts and return
Pinching ethylene, 20~30 parts of recycling polypropylene, 1~3 part of antioxidant 1010,1~3 part of antioxidant 4010.
Each area's temperature of double screw extruder described in step (2) is 180 DEG C of area's temperature, 190 DEG C of two area's temperature, 3rd area
200 DEG C of temperature, 200 DEG C of four area's temperature, 200 DEG C of five area's temperature, 190 DEG C of six area's temperature, 180 DEG C of seven area's temperature, die head temperature 180
℃。
The present invention is compared with other methods, and advantageous effects are:
(1) present invention prepares high-intensitive regenerated plastics foam concrete to recycle polypropylene and recycle polyethylene as added material,
Polyethylene and polypropylene belong to thermoplastic, and thermoplastic can continue to form, and still have after recovery processing certain
Intensity and toughness, can Reusability, recycle that value is high, by recycle polyethylene and recycle the composite plastic of polypropene blended preparation
Material particle is incorporated into foam concrete as light-weight aggregate, thus it is possible to vary the constituent and microstructure of foam concrete, by
It is big in the compressive strength rate regular-type foam concrete of composite plastic particle, it can be used as " skeleton " after incorporation, make in foam concrete
Portion's structure is more solid, meanwhile, plastics are weaker to the adsorption capacity of water and are not involved in hydration reaction, can reduce the same of ratio of water to material
When guarantee slurry workability, compared to other aggregates, the density of plastics is lower, can be in slurry in the case where volume is little
It is middle to keep good stability, it is uniformly dispersed in inside foam concrete.In addition, the elasticity modulus range of plastics and foam are mixed
Solidifying soil quite, when being under pressure load action, there is preferable compatibility of deformation ability；
(2) present invention is blended by the way that silane coupling agent is modified to waste paper with regenerated plastics, and adds carbon fiber, preparation regeneration modeling
The auxiliary material of parison foam concrete, waste paper are the secondary plant fibers recycled, and cheap, density is small, bullet with higher
Property modulus, it is close with inorfil, have good reproducibility, can be used as reinforcement of the recycled plastic in concrete, give up
Paper can form covalent bond and network under " molecular bridge " effect of vinyltriethoxysilane between carbon fiber and recycled plastic
Key is closed, vinyltriethoxysilane can form uniform vinyltriethoxysilane monolayer in fiber surface, enhance
Waste paper, carbon fiber and recycled plastic form the high interface of bond strength in concrete, and the mechanical property of concrete is improved,
Carbon fiber can be effectively entangled with the plant fiber in waste paper, the concrete inner structure that can effectively enrich, and improves mixed
The inner tight for coagulating soil, to effectively improve the mechanical property and intensity of concrete；
(3) present invention prepares high-intensitive regenerated plastics foam concrete, flyash is a kind of artificial volcano by addition flyash
Grey material has special activity, can generate active influence to foam concrete, flyash is mixed in cement, is had
The mobility for helping improve slurry, reduces the density of foam concrete, improves strong ratio, and fineness of pulverized-coal ash is bigger, strong ratio
Higher, flyash can improve the frost resistance of foam concrete, its water absorption rate can be greatly reduced in the levigate rear incorporation of flyash.
Specific embodiment
According to parts by weight, 40~60 parts of recycle polyethylenes, 20~30 parts of recycling polypropylene, 1~3 part of antioxygen are weighed respectively
Recycle polyethylene, recycling polypropylene are placed in blender by 1010,1~3 parts of antioxidant 4010s of agent, under room temperature with 300~
350r/min revolving speed is stirred 20~30min, obtains mixed plastic, and mixed plastic is placed in double screw extruder, and is added
Antioxidant 1010, antioxidant 4010, in 180 DEG C of area's temperature, 190 DEG C of two area's temperature, 200 DEG C of three area's temperature, four area's temperature 200
DEG C, 200 DEG C of five area's temperature, 190 DEG C of six area's temperature, 180 DEG C of seven area's temperature, under conditions of 180 DEG C of die head temperature, with 180~
200r/min revolving speed extruding pelletization, obtains composite plastic particle, then according to parts by weight, weighs 40~50 parts of composite plastics respectively
Grain, 8~10 parts of carbon fibers, 16~20 parts of waste paper, 12~15 parts of recycling rubber powders, 1~3 part of vinyltriethoxysilane, 64~
80 parts of dehydrated alcohols, vinyltriethoxysilane is added to absolute ethanol, with the stirring of 200~240r/min revolving speed under room temperature
10~15min obtains vinyltriethoxysilane ethanol solution, and waste paper is placed in vinyltriethoxysilane ethanol solution
In, 15~20min is stirred with 300~320r/min revolving speed under room temperature, stands 1~2h, filtering, solid is placed in drying box,
Dry 1~2h, obtains modified waste paper under conditions of 110~115 DEG C, by modified waste paper, carbon fiber, recycling rubber powder and composite plastic
Grain is placed in blender, is stirred 30~40min under room temperature with 240~280r/min revolving speed, is obtained mixture, mixture is set
In open kneading machine, 15~20min of mixing under conditions of 140~160 DEG C of temperature, 14~16MPa of pressure, pressure maintaining 1~
3min, cold moudling are granulated, obtain concrete auxiliary material, then according to parts by weight, weigh 60~80 parts of portland cements, 12 respectively
~16 parts of concrete auxiliary materials, 18~24 parts of flyash, 6~8 parts of silicon ashes, 6~8 parts of slags, 1~3 part of melamine high-efficiency diminishing
Agent, 1~3 part of sugar calcium retarder, 3~4 parts of lauryl sodium sulfate, 6~8 parts of polyvinyl alcohol, 180~240 parts of tap water, by ten
Sodium dialkyl sulfate is added in 1/5 deionized water, is stirred 1~3min under room temperature with 100~120r/min revolving speed, must send out
Polyvinyl alcohol is added in foaming agent dilution infusion dilution, stirs 4~6min under room temperature with 320~360r/min revolving speed,
Foam system is obtained, flyash, silicon ash, slag are placed in blender, are stirred 10 under room temperature with 180~200r/min revolving speed
~15min obtains mineral mixture, by cement, mineral mixture, concrete auxiliary material, melamine high-efficiency water-reducing agent, sugar calcium slow setting
Agent is added in the deionized water of residue 4/5, is placed in concrete mixer, mixed with the stirring of 180~220r/min revolving speed under room temperature
6~8min is closed, mixed slurry is obtained, foam system is added in mixed slurry, with 200~240r/min revolving speed stirring 4 under room temperature
~6min, pour into specification be 100mm × 100mm × 50mm mold in, stand 20~for 24 hours, obtain high-intensitive regenerated plastics foam
Concrete.
Embodiment 1
According to parts by weight, weigh respectively 40 parts of recycle polyethylenes, 20 parts of recycling polypropylene, 1 part of antioxidant 1010,1 part it is anti-always
Recycle polyethylene, recycling polypropylene are placed in blender, are stirred 20min under room temperature with 300r/min revolving speed by agent 4010,
Mixed plastic is obtained, mixed plastic is placed in double screw extruder, and antioxidant 1010, antioxidant 4010 is added, in a Qu Wen
Spend 180 DEG C, 190 DEG C of two area's temperature, 200 DEG C of three area's temperature, 200 DEG C of four area's temperature, 200 DEG C of five area's temperature, six area's temperature 190
DEG C, 180 DEG C of seven area's temperature, under conditions of 180 DEG C of die head temperature, with 180r/min revolving speed extruding pelletization, obtain composite plastic particle,
Again according to parts by weight, 40 parts of composite plastic particles, 8 parts of carbon fibers, 16 parts of waste paper, 12 parts of recycling rubber powders, 1 part of second are weighed respectively
Alkenyl triethoxysilane, 64 parts of dehydrated alcohols, vinyltriethoxysilane is added to absolute ethanol, under room temperature with
200r/min revolving speed stirs 10min, obtains vinyltriethoxysilane ethanol solution, waste paper is placed in vinyl triethoxyl silicon
In alkane ethanol solution, 15min is stirred with 300r/min revolving speed under room temperature, stands 1h, filtering, solid is placed in drying box, 110
Dry 1h, obtains modified waste paper under conditions of DEG C, and modified waste paper, carbon fiber, recycling rubber powder and composite plastic particle are placed in stirring
In machine, 30min is stirred with 240r/min revolving speed under room temperature, obtains mixture, mixture is placed in open kneading machine,
15min, pressure maintaining 1min are kneaded under conditions of 140 DEG C of temperature, pressure 14MPa, cold moudling is granulated, obtains concrete auxiliary material, then press
Parts by weight meter weighs 60 parts of portland cements, 12 parts of concrete auxiliary materials, 18 parts of flyash, 6 parts of silicon ashes, 6 parts of slags, 1 respectively
Part melamine high-efficiency water-reducing agent, 1 part of sugar calcium retarder, 3 parts of lauryl sodium sulfate, 6 parts of polyvinyl alcohol, 180 parts of tap water,
Lauryl sodium sulfate is added in 1/5 deionized water, 1min is stirred with 100r/min revolving speed under room temperature, obtains foaming agent
Polyvinyl alcohol is added in foaming agent dilution dilution, stirs 4min under room temperature with 320r/min revolving speed, obtains foam system,
Flyash, silicon ash, slag are placed in blender, 10min is stirred with 180r/min revolving speed under room temperature, obtains mineral mixing
Going for residue 4/5 is added in cement, mineral mixture, concrete auxiliary material, melamine high-efficiency water-reducing agent, sugar calcium retarder by material
It in ionized water, is placed in concrete mixer, 6min is stirred with 180r/min revolving speed under room temperature, obtains mixed slurry, will steep
Foam system be added mixed slurry in, under room temperature with 200r/min revolving speed stir 4min, pour into specification be 100mm × 100mm ×
In the mold of 50mm, 20h is stood, high-intensitive regenerated plastics foam concrete is obtained.
Embodiment 2
According to parts by weight, weigh respectively 50 parts of recycle polyethylenes, 25 parts of recycling polypropylene, 2 parts of antioxidant 1010s, 2 parts it is anti-always
Recycle polyethylene, recycling polypropylene are placed in blender, are stirred 25min under room temperature with 325r/min revolving speed by agent 4010,
Mixed plastic is obtained, mixed plastic is placed in double screw extruder, and antioxidant 1010, antioxidant 4010 is added, in a Qu Wen
Spend 180 DEG C, 190 DEG C of two area's temperature, 200 DEG C of three area's temperature, 200 DEG C of four area's temperature, 200 DEG C of five area's temperature, six area's temperature 190
DEG C, 180 DEG C of seven area's temperature, under conditions of 180 DEG C of die head temperature, with 190r/min revolving speed extruding pelletization, obtain composite plastic particle,
Again according to parts by weight, 45 parts of composite plastic particles, 9 parts of carbon fibers, 18 parts of waste paper, 13 parts of recycling rubber powders, 2 parts of second are weighed respectively
Alkenyl triethoxysilane, 72 parts of dehydrated alcohols, vinyltriethoxysilane is added to absolute ethanol, under room temperature with
220r/min revolving speed stirs 12min, obtains vinyltriethoxysilane ethanol solution, waste paper is placed in vinyl triethoxyl silicon
In alkane ethanol solution, 18min is stirred with 310r/min revolving speed under room temperature, stands 1h, filtering, solid is placed in drying box, 112
Dry 1h, obtains modified waste paper under conditions of DEG C, and modified waste paper, carbon fiber, recycling rubber powder and composite plastic particle are placed in stirring
In machine, 35min is stirred with 260r/min revolving speed under room temperature, obtains mixture, mixture is placed in open kneading machine,
18min, pressure maintaining 2min are kneaded under conditions of 150 DEG C of temperature, pressure 15MPa, cold moudling is granulated, obtains concrete auxiliary material, then press
Parts by weight meter weighs 70 parts of portland cements, 14 parts of concrete auxiliary materials, 21 parts of flyash, 7 parts of silicon ashes, 7 parts of slags, 2 respectively
Part melamine high-efficiency water-reducing agent, 2 parts of sugar calcium retarder, 3 parts of lauryl sodium sulfate, 7 parts of polyvinyl alcohol, 210 parts of tap water,
Lauryl sodium sulfate is added in 1/5 deionized water, 2min is stirred with 110r/min revolving speed under room temperature, obtains foaming agent
Polyvinyl alcohol is added in foaming agent dilution dilution, stirs 5min under room temperature with 340r/min revolving speed, obtains foam system,
Flyash, silicon ash, slag are placed in blender, 12min is stirred with 190r/min revolving speed under room temperature, obtains mineral mixing
Going for residue 4/5 is added in cement, mineral mixture, concrete auxiliary material, melamine high-efficiency water-reducing agent, sugar calcium retarder by material
It in ionized water, is placed in concrete mixer, 7min is stirred with 200r/min revolving speed under room temperature, obtains mixed slurry, will steep
Foam system be added mixed slurry in, under room temperature with 220r/min revolving speed stir 5min, pour into specification be 100mm × 100mm ×
In the mold of 50mm, 22h is stood, high-intensitive regenerated plastics foam concrete is obtained.
Embodiment 3
According to parts by weight, weigh respectively 60 parts of recycle polyethylenes, 30 parts of recycling polypropylene, 3 parts of antioxidant 1010s, 3 parts it is anti-always
Recycle polyethylene, recycling polypropylene are placed in blender, are stirred 30min under room temperature with 350r/min revolving speed by agent 4010,
Mixed plastic is obtained, mixed plastic is placed in double screw extruder, and antioxidant 1010, antioxidant 4010 is added, in a Qu Wen
Spend 180 DEG C, 190 DEG C of two area's temperature, 200 DEG C of three area's temperature, 200 DEG C of four area's temperature, 200 DEG C of five area's temperature, six area's temperature 190
DEG C, 180 DEG C of seven area's temperature, under conditions of 180 DEG C of die head temperature, with 200r/min revolving speed extruding pelletization, obtain composite plastic particle,
Again according to parts by weight, 50 parts of composite plastic particles, 10 parts of carbon fibers, 20 parts of waste paper, 15 parts of recycling rubber powders, 3 parts are weighed respectively
Vinyltriethoxysilane, 80 parts of dehydrated alcohols, vinyltriethoxysilane is added to absolute ethanol, under room temperature with
240r/min revolving speed stirs 15min, obtains vinyltriethoxysilane ethanol solution, waste paper is placed in vinyl triethoxyl silicon
In alkane ethanol solution, 20min is stirred with 320r/min revolving speed under room temperature, stands 2h, filtering, solid is placed in drying box, 115
Dry 2h, obtains modified waste paper under conditions of DEG C, and modified waste paper, carbon fiber, recycling rubber powder and composite plastic particle are placed in stirring
In machine, 40min is stirred with 280r/min revolving speed under room temperature, obtains mixture, mixture is placed in open kneading machine,
20min, pressure maintaining 3min are kneaded under conditions of 160 DEG C of temperature, pressure 16MPa, cold moudling is granulated, obtains concrete auxiliary material, then press
Parts by weight meter weighs 80 parts of portland cements, 16 parts of concrete auxiliary materials, 24 parts of flyash, 8 parts of silicon ashes, 8 parts of slags, 3 respectively
Part melamine high-efficiency water-reducing agent, 3 parts of sugar calcium retarder, 4 parts of lauryl sodium sulfate, 8 parts of polyvinyl alcohol, 240 parts of tap water,
Lauryl sodium sulfate is added in 1/5 deionized water, 3min is stirred with 120r/min revolving speed under room temperature, obtains foaming agent
Polyvinyl alcohol is added in foaming agent dilution dilution, stirs 6min under room temperature with 360r/min revolving speed, obtains foam system,
Flyash, silicon ash, slag are placed in blender, 15min is stirred with 200r/min revolving speed under room temperature, obtains mineral mixing
Going for residue 4/5 is added in cement, mineral mixture, concrete auxiliary material, melamine high-efficiency water-reducing agent, sugar calcium retarder by material
It in ionized water, is placed in concrete mixer, 8min is stirred with 220r/min revolving speed under room temperature, obtains mixed slurry, will steep
Foam system be added mixed slurry in, under room temperature with 240r/min revolving speed stir 6min, pour into specification be 100mm × 100mm ×
In the mold of 50mm, stands for 24 hours, obtain high-intensitive regenerated plastics foam concrete.
Reference examples: the regenerated plastics foam concrete of Dongguan company production.
The regenerated plastics foam concrete that embodiment and reference examples are prepared is detected, specific detection is as follows:
Performance test is with professional standard " foam concrete " (JG/T266-2011) and " Technology of Steady State Thermal Resistance of Thermal Insulating Material and related characteristic
Measurement Guarded hot plate " (GB/T10294-2008) be general provisions.
Dry apparent density test: one group of 3 test block is taken, the length in each direction of length is respectively measured on its both sides and midpoint
It takes once, then measures again on opposite sides thereof one time, survey 6 times altogether, length value of 6 average values measured as the direction,
Calculate the volume of every piece of test specimen.It is drying to constant weight (test block in 4h in (60 ± 5) DEG C drying box that test block, which is placed on temperature, after measurement
It is of poor quality to be less than 1g), test block quality is weighed after taking out cooling, is calculated according to formula.
Water absorption rate test: it is that drying to constant weight (in 4h in (60 ± 5) DEG C drying box that one group of test block, which is put into temperature, before test
Test block is of poor quality to be less than 1g), measure its dries quantity.It is put into the thermostatic water bath that water temperature is (20 ± 5) DEG C, adds water to after cooling
The one third of test block height, each stabilization for 24 hours, adds water and is higher by test block 30mm or more and keeps for 24 hours at 2/3rds.Having impregnated will
Test block is taken out from slot, is directly weighed after being wiped surface moisture to the greatest extent with wet rag.It is calculated according to formula.
Intensity test: it is drying to constant weight (test block in 4h in (60 ± 5) DEG C drying box that one group of test block, which is placed on temperature,
It is of poor quality to be less than 1g).Strength test is carried out after taking out cooling, is averaged the compression strength for the group.
Specific test result such as table 1.
1 performance characterization contrast table of table
| Detection project | Embodiment 1 | Embodiment 2 | Embodiment 3 | Reference examples |
| Dry density/kg/m3 | 1100 | 1050 | 1020 | 650 |
| Water absorption rate/% | 25.0 | 23.2 | 22.1 | 14.3 |
| Compression strength/MPa | 8.1 | 8.2 | 7.9 | 2.2 |
As shown in Table 1, regenerated plastics foam concrete prepared by the present invention has good mechanical property and water absorption rate.
Claims (10)
1. a kind of preparation method of high intensity regenerated plastics foam concrete, which is characterized in that specific preparation step are as follows:
(1) lauryl sodium sulfate is added in 1/5 deionized water, is stirred 1 under room temperature with 100~120r/min revolving speed
~3min obtains foaming agent dilution；
(2) polyvinyl alcohol is added in foaming agent dilution, 4~6min is stirred with 320~360r/min revolving speed under room temperature, must be steeped
Foam system；
(3) flyash, silicon ash, slag are placed in blender, 10 are stirred under room temperature with 180~200r/min revolving speed~
15min obtains mineral mixture；
(4) residue 4/5 is added in cement, mineral mixture, concrete auxiliary material, melamine high-efficiency water-reducing agent, sugar calcium retarder
Deionized water in, be placed in concrete mixer, 6~8min be stirred with 180~220r/min revolving speed under room temperature, obtain mixed
Close slurry；
(5) foam system is added in mixed slurry, 4~6min is stirred with 200~240r/min revolving speed under room temperature, pours into mold
In, standing 20~for 24 hours, obtain high-intensitive regenerated plastics foam concrete.
2. a kind of preparation method of high-intensitive regenerated plastics foam concrete according to claim 1, which is characterized in that institute
Cement, concrete auxiliary material, flyash, silicon ash, slag, melamine high-efficiency water-reducing agent, sugar calcium retarder, the dodecyl sulphur stated
Sour sodium, polyvinyl alcohol, tap water parts by weight be 60~80 parts of cement, 12~16 parts of concrete auxiliary materials, 18~24 parts of flyash,
6~8 parts of silicon ashes, 6~8 parts of slags, 1~3 part of melamine high-efficiency water-reducing agent, 1~3 part of sugar calcium retarder, 3~4 parts of dodecanes
Base sodium sulphate, 6~8 parts of polyvinyl alcohol, 180~240 parts of tap water.
3. a kind of preparation method of high-intensitive regenerated plastics foam concrete according to claim 1, which is characterized in that step
Suddenly cement described in (4) is the portland cement of intensity 42.5.
4. a kind of preparation method of high-intensitive regenerated plastics foam concrete according to claim 1, which is characterized in that step
Suddenly mould specification described in (5) is 100mm × 100mm × 50mm.
5. a kind of preparation method of high-intensitive regenerated plastics foam concrete according to claim 1, which is characterized in that step
Suddenly the specific preparation step of concrete auxiliary material described in (4) are as follows:
(1) vinyltriethoxysilane is added to absolute ethanol, under room temperature with 200~240r/min revolving speed stirring 10~
15min obtains vinyltriethoxysilane ethanol solution；
(2) waste paper is placed in vinyltriethoxysilane ethanol solution, with 300~320r/min revolving speed stirring 15 under room temperature
~20min stands 1~2h, filtering, and solid is placed in drying box, and dry 1~2h, obtains modification under conditions of 110~115 DEG C
Waste paper；
(3) modified waste paper, carbon fiber, recycling rubber powder and composite plastic particle are placed in blender, under room temperature with 240~
280r/min revolving speed is stirred 30~40min, obtains mixture；
(4) mixture is placed in 15~20min of mixing in open kneading machine, 1~3min of pressure maintaining, cold moudling is granulated, obtains mixed
Solidifying soil auxiliary material.
6. a kind of preparation method of high-intensitive regenerated plastics foam concrete according to claim 5, which is characterized in that institute
The composite plastic particle stated, carbon fiber, waste paper, recycling rubber powder, vinyltriethoxysilane, the parts by weight of dehydrated alcohol are 40
~50 parts of composite plastic particles, 8~10 parts of carbon fibers, 16~20 parts of waste paper, 12~15 parts of recycling rubber powders, 1~3 part of vinyl three
Ethoxysilane, 64~80 parts of dehydrated alcohols.
7. a kind of preparation method of high-intensitive regenerated plastics foam concrete according to claim 5, which is characterized in that step
Suddenly compounding conditions described in (4) are 140~160 DEG C of temperature, 14~16MPa of pressure.
8. a kind of preparation method of high-intensitive regenerated plastics foam concrete according to claim 5, which is characterized in that step
Suddenly the specific preparation step of composite plastic particle described in (3) are as follows:
(1) recycle polyethylene, recycling polypropylene are placed in blender, are stirred under room temperature with 300~350r/min revolving speed
20~30min obtains mixed plastic；
(2) mixed plastic is placed in double screw extruder, and antioxidant 1010, antioxidant 4010 is added, with 180~200r/
Min revolving speed extruding pelletization, obtains composite plastic particle.
9. a kind of preparation method of high-intensitive regenerated plastics foam concrete according to claim 8, which is characterized in that institute
The recycle polyethylene stated, recycling polypropylene, antioxidant 1010, antioxidant 4010 parts by weight be 40~60 parts of recycle polyethylenes,
20~30 parts of recycling polypropylene, 1~3 part of antioxidant 1010,1~3 part of antioxidant 4010.
10. a kind of preparation method of high-intensitive regenerated plastics foam concrete according to claim 8, which is characterized in that
Each area's temperature of double screw extruder described in step (2) is 180 DEG C of area's temperature, 190 DEG C of two area's temperature, three area's temperature 200
DEG C, 200 DEG C of four area's temperature, 200 DEG C of five area's temperature, 190 DEG C of six area's temperature, 180 DEG C of seven area's temperature, 180 DEG C of die head temperature.
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