CN108975797A - A kind of preparation method of ultralight foam concrete - Google Patents
A kind of preparation method of ultralight foam concrete Download PDFInfo
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- CN108975797A CN108975797A CN201811078485.0A CN201811078485A CN108975797A CN 108975797 A CN108975797 A CN 108975797A CN 201811078485 A CN201811078485 A CN 201811078485A CN 108975797 A CN108975797 A CN 108975797A
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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
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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
-
- 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
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Abstract
The present invention relates to a kind of preparation methods of ultralight foam concrete, belong to technical field of concrete preparation.Enhance the intensity of foam concrete in the present invention using glass fibre and vinal, the addition of glass fibre and vinal can form tridimensional network in inside concrete, so that the compression strength of the ultralight foam concrete of preparation increases；Foaming agent is carried out foaming processing by prefabricated bubble mixing method by the present invention, it is uniformly mixed with other material auxiliary agents, the foam concrete foam aperture of preparation is uniform, intensity increases, and calcium stearate is for improving bubble stability and extending the bubble-break period, so that the ultralight foam concrete internal void generated is more evenly, aperture is smaller, its dry density and thermal coefficient are reduced, reducing water absorption rate may insure that its thermal coefficient will not significantly increase in use, to improve its thermal and insulating performance.
Description
Technical field
The present invention relates to a kind of preparation methods of ultralight foam concrete, belong to technical field of concrete preparation.
Background technique
It include a large amount of stomatas in ultralight foam concrete, during the preparation process, stomata is in thermodynamic instability state, is
The stomata that stable foam is formed, raw material require extremely stringent.Currently, quick-hardening cement, high alumina cement, sulphate aluminium cement etc.
It can accelerate cement setting, improve early strength, be usually used in preparing ultralight foam concrete, while alkali-activated carbonatite geopolymer system
Used also as in the preparation of ultra-light cellular material.
Recent years, because lightweight, porous, sound-absorbing, heat-insulation and heat-preservation, energy-absorbing, antidetonation, green, fire prevention the features such as, foam concrete
It is rapidly developed in fields such as heat preservation and insulation field, sound insulation and noise reduction field, buffering energy-absorbing field, backfills.Porous structure assigns
Its excellent performance, in order to further enhance the performance of foam concrete, part research concentrates on reducing foam concrete
Density (general density < 300kg/m3), increase the porosity aspect of foam concrete, and achieve desired effect.Porous material
Calorifics be significantly improved with acoustic characteristic, and the application field of foam concrete is extended, such as porous material exists
Military application.Moreover, the gel material content for preparing ultralight foam concrete is few, and resources and energy consumption significantly drops
It is low.But that there is also intensity is extremely low, volume stability is bad, water absorption rate is high etc. is urgently to be solved for the foam concrete of ultralightization
Problem.
Two kinds of physical blowing, chemical aerating foaming preparation processes are the current ultralight main preparation processes of foam concrete.Object
Haircut bubble refer to by foaming agent water solution by pressure-air or high speed machine stirring is prefabricated into foam, and mix greatly by cement,
In the slurry of the compositions such as aggregate, extraneous component and water, is formed through mixing moulding by casting maintenance and prepare light porous material
Method is widely used in pipeline backfill, production retaining wall, concrete packing course, compensation ground and civil airport runway retarding system
Etc..Chemical foaming technology, which then refers in the slurry made of cement, aggregate, extraneous component and water etc., is added chemical blowing
Agent, generating chemical reaction generation gas expands slurry, the hardened method for forming macroporosity light material.Because of preparation process
Difference, chemical foaming technology is suitble to mill work production, in terms of being mainly used in insulation product, physical foaming process
Then not only it had been suitble to mill work production but also had been suitble to site operation.
Though physical method and chemical method, which can go out, prepares ultralight foam concrete, in preparation process, new spice slurry is easily
It collapses, and cementitious material used is commonly fast hard, fast special cements, the cost and durability etc. such as solidifying and there is certain ask
Topic.The mechanical property of the ultralight foam concrete of chemical method preparation is preferable, but is influenced by process characteristic, in preparation process by
The series of factors such as environment temperature, mix water temperature, slurry stickiness influence, and when mix-design needs Consideration more, and preparation is difficult
Degree is big, and performance inconsistency is big.Chemical foaming technology can only be suitble to prefabrication to produce, and physical method prepares foam concrete and can fit
It closes prefabrication and is suitble to cast in situs molding again, and mix-design can be carried out for material property, but physical blowing system
Standby ultralight cement Quito material is poor in easily collapse in early days mould collapse hole, mechanical property.
Summary of the invention
The technical problems to be solved by the invention: there is a problem of that intensity is low for existing ultralight foam concrete, provide
A kind of preparation method of ultralight foam concrete.
In order to solve the above technical problems, the technical solution adopted by the present invention is that:
(1) in mass ratio 1: 3 Polystyrene powder and mass fraction are mixed for 20% sulfuric acid solution, ultrasonic disperse and thermostatical oil
Bath processing, is cooled to room temperature to obtain mixed liquor A, and dehydrated alcohol is added, and centrifuge separation is collected lower sediment A, washed with dehydrated alcohol
It 3~5 times, dries in 40~60 DEG C of baking ovens to constant weight, grinds to obtain modified powder；In mass ratio 1: 5 by modified powder and go from
Sub- water mixing, 10~20min of ultrasonic disperse obtain dispersion liquid, and in mass ratio 1: 10 mixes amido silicon oil and methylene chloride, magnetic force
It stirs evenly, obtains mixed liquid B, according to parts by weight, weigh 20~30 parts of dispersion liquids, 10~20 parts of mixed liquid Bs, 1~5 part respectively
Divinylbenzene, 10~20 parts of deionized waters, 1~10 part of tetrahydrofuran mix dispersion liquid, mixed liquid B and divinylbenzene,
Stir and constant temperature processing, be cooled to room temperature, obtain suspension, filter to obtain filter residue, after being washed with deionized 3~5 times, addition go from
Sub- water, 5~10min of ultrasonic disperse obtain composite dispersion liquid, and tetrahydrofuran is added, and are centrifugated after vibrating 8~10h, collect lower layer
Precipitate B is washed 3~5 times respectively with tetrahydrofuran and deionized water, is freeze-dried 1~2 day to get filler；
(2) according to parts by weight, 40~60 parts of cement, 20~26 parts of fillers, 10~18 parts of composite fibres, 1~10 are weighed respectively
Foaming agent and deionized water are mixed and are placed in foaming machine by part foaming agent, 1~6 part of calcium stearate, 80~100 parts of deionized waters
Foaming processing, obtains foam solution, and cement, filler, composite fibre, foam solution and calcium stearate are mixed, and stirs and injection molding is handled, i.e.,
Obtain ultralight foam concrete.
Ultrasonic disperse described in step (1) and constant temperature oil bath processing be 15~20min of ultrasonic disperse after, temperature be 40~
18~22h is reacted in 60 DEG C of oil bath pan.
The volume ratio of dehydrated alcohol described in step (1) and mixed liquor is 1: 2.
Centrifuge separation described in step (1) is that 3~5min is centrifuged in the case where centrifugal speed is 5000~6000r/min.
Stirring described in step (1) and dispersion liquid and mixed liquid B is are mixed by constant temperature processing, low whipping speed is 50~
8~12h is stirred at room temperature under 100r/min, obtains complex liquid, divinylbenzene is added, reacts 1~2 at being 40~60 DEG C in temperature
It.
Composite fibre described in step (2) is that glass fibre and vinal in mass ratio 1: 1 mix.
Foaming agent described in step (2) is compound plant protein anionic surfactant type foaming agent GS-1 type.
The processing of foaming described in step (2) is the 2~3min that foams in the case where gas release is 0.5~0.6m/min.
It is 10~12h of stirring under 60~120r/min that stirring described in step (2) and injection molding processing, which are low whipping speed, is obtained
Mixed slurry injects mixed slurry in mold, is 20~22 DEG C in temperature, humidity demoulds after 1~2 day under being 90~96%.
The present invention is compared with other methods, and advantageous effects are:
(1) present invention is using negatively charged anionic polyelectrolyte microballoon sulfonated polystyrene as the template of microcapsules, just with band
The amido silicon oil of charge carries out electrostatic self-assembled and it is hollow micro- to prepare polystyrene-amido silicon oil by divinyl benzene crosslinked
Capsule is carried out foaming agent at foaming by prefabricated bubble mixing method using polystyrene-amido silicon oil hollow microcapsules as filler
Reason, prepares ultralight foam concrete in conjunction with other material auxiliary agents, the addition of hollow microcapsules can be further improved foam coagulation
The thermal insulation property and lightweight performance of soil；
(2) enhance the intensity of foam concrete in the present invention using glass fibre and vinal, fiber is in cement base
Have the function of that enhancing, resistance is split and toughening in material, glass fibre is added in foam concrete so that flexural strength is mentioned significantly
The addition of height, glass fibre and vinal can form tridimensional network in inside concrete, so that preparation is ultralight
The compression strength of foam concrete increases；
(3) foaming agent is carried out foaming processing by prefabricated bubble mixing method by the present invention and other material auxiliary agents are uniformly mixed, preparation
Foam concrete foam aperture it is uniform, intensity increases, and ultralight foam coagulation not only can be improved as foam stabilizer calcium stearate
The foam stability of soil paste body, the water absorption rate of the ultralight foam concrete after hardening can also be reduced, for improving bubble stability simultaneously
Extend the bubble-break period, so that the ultralight foam concrete internal void generated is more evenly, aperture is smaller, reduces its dry density
And thermal coefficient, reducing water absorption rate may insure that its thermal coefficient will not significantly increase in use, to improve its guarantor
Warm heat-proof quality.
Specific embodiment
In mass ratio 1: 3 mixes Polystyrene powder and mass fraction for 20% sulfuric acid solution, and ultrasonic disperse 15~
After 20min, it is to react 18~22h in 40~60 DEG C of oil bath pan in temperature, is cooled to room temperature to obtain mixed liquor A, by volume 1: 2
Dehydrated alcohol is added, is centrifuged 3~5min in the case where centrifugal speed is 5000~6000r/min, lower sediment A is collected, with anhydrous second
Alcohol washs 3~5 times, dries in 40~60 DEG C of baking ovens to constant weight, grinds to obtain modified powder；In mass ratio 1: 5 by modified powder
It is mixed with deionized water, 10~20min of ultrasonic disperse obtains dispersion liquid, and in mass ratio 1: 10 mixes amido silicon oil and methylene chloride
It closes, magnetic agitation is uniform, obtains mixed liquid B, according to parts by weight, weighs 20~30 parts of dispersion liquids, 10~20 portions of mixed liquors respectively
B, 1~5 part of divinylbenzene, 10~20 parts of deionized waters, 1~10 part of tetrahydrofuran mix dispersion liquid and mixed liquid B,
Mixing speed is that 8~12h is stirred at room temperature under 50~100r/min, obtains complex liquid, divinylbenzene is added, and is 40~60 in temperature
Reacted 1~2 day at DEG C, be cooled to room temperature, obtain suspension, filter to obtain filter residue, after being washed with deionized 3~5 times, addition go from
Sub- water, 5~10min of ultrasonic disperse obtain composite dispersion liquid, and tetrahydrofuran is added, and are centrifugated after vibrating 8~10h, collect lower layer
Precipitate B is washed 3~5 times respectively with tetrahydrofuran and deionized water, is freeze-dried 1~2 day to get filler；In parts by weight
Meter, weigh respectively 40~60 parts of cement, 20~26 parts of fillers, 10~18 parts of composite fibres, 1~10 part of foaming agent, 1~6 part it is hard
Foaming agent and deionized water are mixed and are placed in foaming machine by resin acid calcium, 80~100 parts of deionized waters, gas release be 0.5~
Foam 2~3min under 0.6m/min, obtains foam solution, and cement, filler, composite fibre, foam solution and calcium stearate are mixed, stirred
Mixing speed is that 10~12h is stirred under 60~120r/min, obtains mixed slurry, and mixed slurry is injected in mold, is 20 in temperature
~22 DEG C, humidity is 90~96% lower demouldings after 1~2 day to get ultralight foam concrete.
In mass ratio 1: 3 mixes Polystyrene powder and mass fraction for 20% sulfuric acid solution, after ultrasonic disperse 15min,
18h is reacted in the oil bath pan that temperature is 40 DEG C, is cooled to room temperature to obtain mixed liquor A, is added dehydrated alcohol at 1: 2 by volume,
Centrifugal speed is that 3min is centrifuged under 5000r/min, collects lower sediment A, is washed 3 times with dehydrated alcohol, is done in 40 DEG C of baking ovens
It is dry to constant weight, grind to obtain modified powder；In mass ratio 1: 5 mixes modified powder with deionized water, and ultrasonic disperse 10min is obtained
Dispersion liquid, in mass ratio 1: 10 mixes amido silicon oil and methylene chloride, and magnetic agitation is uniform, obtains mixed liquid B, in parts by weight
Meter, weighs 20 parts of dispersion liquids, 10 parts of mixed liquid Bs, 1 part of divinylbenzene, 10 parts of deionized waters, 1 part of tetrahydrofuran respectively, will divide
Dispersion liquid and mixed liquid B mixing, low whipping speed are that 8h is stirred at room temperature under 50r/min, obtain complex liquid, divinylbenzene is added,
Temperature is to react 1 day at 40 DEG C, is cooled to room temperature, obtains suspension, filter to obtain filter residue, after being washed with deionized 3 times, addition is gone
Ionized water, ultrasonic disperse 5min obtain composite dispersion liquid, and tetrahydrofuran is added, and are centrifugated after vibrating 8h, collect lower sediment B,
It is washed respectively 3 times with tetrahydrofuran and deionized water, is freeze-dried 1 day to get filler；According to parts by weight, 40 are weighed respectively
Part cement, 20 parts of fillers, 10 parts of composite fibres, 1 part of foaming agent, 1 part of calcium stearate, 80 parts of deionized waters, by foaming agent and go
Ionized water mixing is placed in foaming machine, is foamed 2min in the case where gas release is 0.5m/min, is obtained foam solution, by cement, filler, compound
Fiber, foam solution and calcium stearate mixing, low whipping speed are to stir 10h under 60r/min, mixed slurry are obtained, by mixed slurry
It injects in mold, is 20 DEG C in temperature, humidity is 90% demoulding after lower 1 day to get ultralight foam concrete.
In mass ratio 1: 3 mixes Polystyrene powder and mass fraction for 20% sulfuric acid solution, after ultrasonic disperse 18min,
20h is reacted in the oil bath pan that temperature is 50 DEG C, is cooled to room temperature to obtain mixed liquor A, is added dehydrated alcohol at 1: 2 by volume,
Centrifugal speed is that 4min is centrifuged under 5500r/min, collects lower sediment A, is washed 4 times with dehydrated alcohol, is done in 50 DEG C of baking ovens
It is dry to constant weight, grind to obtain modified powder；In mass ratio 1: 5 mixes modified powder with deionized water, and ultrasonic disperse 15min is obtained
Dispersion liquid, in mass ratio 1: 10 mixes amido silicon oil and methylene chloride, and magnetic agitation is uniform, obtains mixed liquid B, in parts by weight
Meter, weighs 25 parts of dispersion liquids, 15 parts of mixed liquid Bs, 3 parts of divinylbenzenes, 15 parts of deionized waters, 5 parts of tetrahydrofurans respectively, will divide
Dispersion liquid and mixed liquid B mixing, low whipping speed are that 10h is stirred at room temperature under 75r/min, obtain complex liquid, divinylbenzene is added,
Temperature is to react 1 day at 50 DEG C, is cooled to room temperature, obtains suspension, filter to obtain filter residue, after being washed with deionized 4 times, addition is gone
Ionized water, ultrasonic disperse 8min obtain composite dispersion liquid, and tetrahydrofuran is added, and are centrifugated after vibrating 9h, collect lower sediment B,
It is washed respectively 4 times with tetrahydrofuran and deionized water, is freeze-dried 1 day to get filler；According to parts by weight, 50 are weighed respectively
Part cement, 23 parts of fillers, 14 parts of composite fibres, 5 parts of foaming agents, 3 parts of calcium stearates, 90 parts of deionized waters, by foaming agent and go
Ionized water mixing is placed in foaming machine, is foamed 2min in the case where gas release is 0.5m/min, is obtained foam solution, by cement, filler, compound
Fiber, foam solution and calcium stearate mixing, low whipping speed are to stir 11h under 90r/min, mixed slurry are obtained, by mixed slurry
It injects in mold, is 21 DEG C in temperature, humidity is 93% demoulding after lower 1 day to get ultralight foam concrete.
In mass ratio 1: 3 mixes Polystyrene powder and mass fraction for 20% sulfuric acid solution, after ultrasonic disperse 20min,
22h is reacted in the oil bath pan that temperature is 60 DEG C, is cooled to room temperature to obtain mixed liquor A, is added dehydrated alcohol at 1: 2 by volume,
Centrifugal speed is that 5min is centrifuged under 6000r/min, collects lower sediment A, is washed 5 times with dehydrated alcohol, is done in 60 DEG C of baking ovens
It is dry to constant weight, grind to obtain modified powder；In mass ratio 1: 5 mixes modified powder with deionized water, and ultrasonic disperse 20min is obtained
Dispersion liquid, in mass ratio 1: 10 mixes amido silicon oil and methylene chloride, and magnetic agitation is uniform, obtains mixed liquid B, in parts by weight
Meter, weighs 30 parts of dispersion liquids, 20 parts of mixed liquid Bs, 5 parts of divinylbenzenes, 20 parts of deionized waters, 10 parts of tetrahydrofurans respectively, will
Dispersion liquid and mixed liquid B mixing, low whipping speed are that 12h is stirred at room temperature under 100r/min, obtain complex liquid, divinyl is added
Benzene reacts 2 days at being 60 DEG C in temperature, is cooled to room temperature, obtains suspension, filter to obtain filter residue, after being washed with deionized 5 times,
Deionized water is added, ultrasonic disperse 10min obtains composite dispersion liquid, and tetrahydrofuran is added, and is centrifugated after vibrating 10h, under collection
Layer precipitate B, is washed 5 times respectively with tetrahydrofuran and deionized water, is freeze-dried 2 days to get filler；According to parts by weight, divide
60 parts of cement, 26 parts of fillers, 18 parts of composite fibres, 10 parts of foaming agents, 6 parts of calcium stearates, 100 parts of deionized waters also known as are taken, it will
Foaming agent and deionized water mixing are placed in foaming machine, and foam 3min in the case where gas release is 0.6m/min, foam solution are obtained, by water
Mud, filler, composite fibre, foam solution and calcium stearate mixing, low whipping speed are to stir 12h under 120r/min, obtain mixing slurry
Material injects mixed slurry in mold, is 22 DEG C in temperature, and humidity is 96% demoulding after lower 2 days to get ultralight foam concrete.
Reference examples: the ultralight foam concrete of Dongguan company production.
The ultralight foam concrete that example and reference examples are prepared detects, and specific detection is as follows:
Absolute Dry Density and compression strength: after molding 72h, demoulding is having a size of 70.7mm × 70.7mm × 70.7mm sample, and maintenance is extremely
Age measures Absolute Dry Density with reference to JG/T-2011 " foam concrete "；The sample for being up to age is placed in (20 ± 2) DEG C, relatively
After humidity (60 ± 5) % tests environment for 24 hours, test intensity.
Moisture content and water absorption rate: moisture content is surveyed referring to GB/T11969-2008 " steam-pressing aero-concrete method for testing performance "
Examination, water absorption rate are tested according to JC/T266-2011 " foam concrete ".
Specific test result such as table 1.
1 performance characterization contrast table of table
| Detection project | Example 1 | Example 2 | Example 3 | Reference examples |
| Absolute Dry Density/kg/m3 | 272.8 | 270.1 | 269.3 | 109.1 |
| Compression strength/MPa | 0.6 | 0.55 | 0.51 | 0.12 |
| Moisture content/% | 30 | 31 | 32 | 15 |
| Water absorption rate/% | 10 | 11 | 12 | 27 |
As shown in Table 1, ultralight foam concrete prepared by the present invention has good compression strength, water absorption rate and moisture content.
Claims (9)
1. a kind of preparation method of ultralight foam concrete, it is characterised in that specific preparation step are as follows:
(1) in mass ratio 1: 3 Polystyrene powder and mass fraction are mixed for 20% sulfuric acid solution, ultrasonic disperse and thermostatical oil
Bath processing, is cooled to room temperature to obtain mixed liquor A, and dehydrated alcohol is added, and centrifuge separation is collected lower sediment A, washed with dehydrated alcohol
It 3~5 times, dries in 40~60 DEG C of baking ovens to constant weight, grinds to obtain modified powder；In mass ratio 1: 5 by modified powder and go from
Sub- water mixing, 10~20min of ultrasonic disperse obtain dispersion liquid, and in mass ratio 1: 10 mixes amido silicon oil and methylene chloride, magnetic force
It stirs evenly, obtains mixed liquid B, according to parts by weight, weigh 20~30 parts of dispersion liquids, 10~20 parts of mixed liquid Bs, 1~5 part respectively
Divinylbenzene, 10~20 parts of deionized waters, 1~10 part of tetrahydrofuran mix dispersion liquid, mixed liquid B and divinylbenzene,
Stir and constant temperature processing, be cooled to room temperature, obtain suspension, filter to obtain filter residue, after being washed with deionized 3~5 times, addition go from
Sub- water, 5~10min of ultrasonic disperse obtain composite dispersion liquid, and tetrahydrofuran is added, and are centrifugated after vibrating 8~10h, collect lower layer
Precipitate B is washed 3~5 times respectively with tetrahydrofuran and deionized water, is freeze-dried 1~2 day to get filler；
(2) according to parts by weight, 40~60 parts of cement, 20~26 parts of fillers, 10~18 parts of composite fibres, 1~10 are weighed respectively
Foaming agent and deionized water are mixed and are placed in foaming machine by part foaming agent, 1~6 part of calcium stearate, 80~100 parts of deionized waters
Foaming processing, obtains foam solution, and cement, filler, composite fibre, foam solution and calcium stearate are mixed, and stirs and injection molding is handled, i.e.,
Obtain ultralight foam concrete.
2. a kind of preparation method of ultralight foam concrete according to claim 1, it is characterised in that: step (1) is described
Ultrasonic disperse and after constant temperature oil bath processing is 15~20min of ultrasonic disperse, be to be reacted in 40~60 DEG C of oil bath pan in temperature
18~22h.
3. a kind of preparation method of ultralight foam concrete according to claim 1, it is characterised in that: step (1) is described
Dehydrated alcohol and mixed liquor volume ratio be 1: 2.
4. a kind of preparation method of ultralight foam concrete according to claim 1, it is characterised in that: step (1) is described
Centrifuge separation be in the case where centrifugal speed is 5000~6000r/min be centrifuged 3~5min.
5. a kind of preparation method of ultralight foam concrete according to claim 1, it is characterised in that: step (1) is described
Stirring and constant temperature processing for dispersion liquid and mixed liquid B are mixed, low whipping speed be stirred at room temperature 8 under 50~100r/min~
12h obtains complex liquid, and divinylbenzene is added, and reacts 1~2 day at being 40~60 DEG C in temperature.
6. a kind of preparation method of ultralight foam concrete according to claim 1, it is characterised in that: step (2) is described
Composite fibre be that glass fibre and vinal in mass ratio 1: 1 mix.
7. a kind of preparation method of ultralight foam concrete according to claim 1, it is characterised in that: step (2) is described
Foaming agent be compound plant protein anionic surfactant type foaming agent GS-1 type.
8. a kind of preparation method of ultralight foam concrete according to claim 1, it is characterised in that: step (2) is described
Foaming processing in the case where gas release is 0.5~0.6m/min foam 2~3min.
9. a kind of preparation method of ultralight foam concrete according to claim 1, it is characterised in that: step (2) is described
Stirring and injection molding processing be low whipping speed be under 60~120r/min stir 10~12h, mixed slurry is obtained, by mixed slurry
It injects in mold, is 20~22 DEG C in temperature, humidity demoulds after 1~2 day under being 90~96%.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113336568A (en) * | 2021-05-06 | 2021-09-03 | 袁红丽 | Fireproof heat-insulation type concrete brick |
| CN113443861A (en) * | 2021-04-01 | 2021-09-28 | 尹会贤 | Sound-proof and heat-insulation lightweight concrete and production process thereof |
| CN114083669A (en) * | 2021-11-24 | 2022-02-25 | 山东港基建设集团有限公司 | Steel wire mesh rack insulation board and preparation method thereof |
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| CN113336568A (en) * | 2021-05-06 | 2021-09-03 | 袁红丽 | Fireproof heat-insulation type concrete brick |
| CN113336568B (en) * | 2021-05-06 | 2022-08-19 | 山东瀛洲节能环保科技有限公司 | Fireproof heat-insulation type concrete brick |
| CN114083669A (en) * | 2021-11-24 | 2022-02-25 | 山东港基建设集团有限公司 | Steel wire mesh rack insulation board and preparation method thereof |
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Application publication date: 20181211 |