CN108285361A - Self-compaction sulphate aluminium cement ceramsite foam concrete and preparation method thereof - Google Patents
Self-compaction sulphate aluminium cement ceramsite foam concrete and preparation method thereof Download PDFInfo
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- CN108285361A CN108285361A CN201810233280.9A CN201810233280A CN108285361A CN 108285361 A CN108285361 A CN 108285361A CN 201810233280 A CN201810233280 A CN 201810233280A CN 108285361 A CN108285361 A CN 108285361A
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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
- C04B28/06—Aluminous 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
- 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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Abstract
The present invention provides self-compaction sulphate aluminium cement ceramsite foam concrete and preparation method thereof, which includes：Sulphate aluminium cement haydite concrete and concrete foam are stirred according to the ratio that volume ratio is 1: 13.It counts in parts by weight, sulphate aluminium cement haydite concrete includes following component：Cementitious material, 100 parts；Concrete water, 30 50 parts；Water-reducing agent, 0.8 1.5 parts；Light ceramic, 80 150 parts；Fiber, 0.1 0.4 parts.The divergence of the self-compaction ceramsite foam concrete of the present invention is in 60cm or more, T50 is less than 2s, fillibility is very good, when carrying out mold molding, surface state is close with foam concrete surface of vibrating, there is no the problem of appearance such as honeycomb, pitted skin, corner is complete, need not be repaired, and need not be cut.Preparation method simple operations of the present invention are easy, easy to control, energy-saving, reduce production cost, can obtain popularization and application energetically.
Description
Technical field
The invention belongs to technical field of inorganic nonmetallic materials, and in particular to a kind of self-compaction sulphate aluminium cement haydite bubble
Foam concrete and preparation method thereof.
Background technology
Ceramsite foam concrete is a kind of excellent light wall material.Its hole is mostly blind hole, heat-insulating property and
Intensity is better than the current air entrained concrete largely used.And using light ceramic as aggregate, it can reach the purpose of high-strength light.
Currently, major gelled material is portland cement in ceramsite foam concrete, setting time is long.Therefore in order to anti-
Only foam is vanished before condensation, and general be added promotees to coagulate component, these components can be such that cement condenses within a short period of time, but to strong
Degree has negative effect.
In ceramsite foam concrete, due on, there are density contrast, easilying lead to gather materials between slurry and haydite
Floating or sinking, makes product properties decline.It is general in ceramsite foam concrete production in currently available technology not mix or add few
The water-reducing agent of amount is to inhibit layering of the haydite in slurry.Due to poor fluidity, the fillibility of foam concrete is poor, thus at
The good product of performance, appearance is obtained by the method for cutting after type.But this process causes the waste of material, while cutting
It is likely to cause product breakage, further increases waste.Also have keeps ceramsite foam concrete filling closely knit by vibrating, but this
Process keeps bubble burst, product properties uncontrollable.
Foam concrete technology in the prior art, as Chinese Patent Application No. discloses one kind for 201610288193.4
The preparation method of ceramsite foam concrete building block, the invention is with light ceramic, 525# Portland cements, flyash, mountain flour
Or miberal powder or building waste powder, foaming agent, water produce haydite foam for raw material by mixing the processes such as ash, molding, maintenance, cutting
Concrete segment, the invention product have lightweight, intensity are high, heat-insulation and heat-preservation is good, drying shrinkage value is small, impervious strong, environmental protection,
The good advantage of long lifespan, fire resisting, soundproof effect, with this body of building a wall without doing external thermal insulation, without doing waterproof, without doing puigging.
But do not have to increase the component of fluidity of slurry in the ceramsite foam concrete of the invention, the fillibility in mold is very poor,
It must be vibrated or be cut after being hardened.Chinese Patent Application No. 201510135741.5 discloses a kind of glass fibre
Enhanced glass bead ceramsite foam concrete and preparation method thereof and, the invention is with cement, flyash, glass bead, swelling
Haydite, glass fibre, water, hydrogen peroxide, water-reducing agent, manganese dioxide are prepared.The water-reducing agent that higher amount is mixed in the invention, can
The mobility of slurry is greatly improved, but it is using portland cement as major gelled material, does not add coagulant, cement setting
Time is long；And a large amount of flyash of incorporation, so that cement setting time is further extended, therefore easily cause the haydite of its admixture
It is layered with glass bead；Setting time length is also easy to make lather collapse and test specimen is caused to collapse simultaneously, influences product properties.
Chinese Patent Application No. is 201510490064.9 to disclose a kind of rack type ceramsite foam concrete and its preparation
Method, the invention are included in each component that shared mass percent is following in rack type ceramsite foam concrete formula：Be gelled material
Material, haydite, fine aggregate, water-reducing agent, water；Foam-filled material is included in shared quality in rack type ceramsite foam concrete formula
The following each component of percentage：Cementitious material, exciting agent, foaming agent, water-reducing agent, water, the rack type haydite bubble which provides
Foam concrete has higher load-bearing capacity and good thermal and insulating performance simultaneously, but the forming method of the invention is non-traditional
One-pass molding, but haydite is first prepared into the skeleton of similar pervious concrete, then the filled and process concrete in skeleton,
The invention forming method is complicated, and the filling quality of foam is influenced very greatly by aggregate packed structures, it is difficult to control, and cost is higher.
Accordingly, it is desirable to provide a kind of improved technology scheme insufficient for the above-mentioned prior art.
Invention content
The present invention for overcome the deficiencies in the prior art, provide a kind of self-compaction sulphate aluminium cement foam concrete and
Preparation method.
To achieve the goals above, the present invention provides the following technical solutions：
A kind of self-compaction sulphate aluminium cement ceramsite foam concrete, the self-compaction sulphate aluminium cement haydite foam are mixed
Solidifying soil includes：Sulphate aluminium cement haydite concrete and concrete foam are stirred according to the ratio that volume ratio is 1: 1-3.
Self-compaction sulphate aluminium cement ceramsite foam concrete as described above, it is preferable that count in parts by weight, the sulphur aluminium
Acid salt cement haydite concrete includes following component：
Cementitious material, 100 parts；Concrete water, 30-50 parts；Water-reducing agent, 0.8-1.5 parts；Light ceramic, 80-150 parts；
Fiber, 0.1-0.4 parts.
Self-compaction sulphate aluminium cement ceramsite foam concrete as described above, it is preferable that the concrete foam is by sending out
Foamed machine foaming is formed by lightweight to solution made of the ratio stirring of infusion and foaming agent water by weight 1: 15-60 again
Foam.
Self-compaction sulphate aluminium cement ceramsite foam concrete as described above, it is preferable that the foaming agent is vegetable protein
One kind in foaming agent, animal protein foaming agent and compound foaming agent.
Self-compaction sulphate aluminium cement ceramsite foam concrete as described above, it is preferable that the cementitious material is by fast hard
Powder made of sulphate aluminium cement and flyash are stirred by weight 1: 0-0.25 ratio.
Self-compaction sulphate aluminium cement ceramsite foam concrete as described above, it is preferable that the quick hardening sulphoaluminate cement
Grade be 52.5 or 62.5；The grade of the flyash is two level or level-one.
Self-compaction sulphate aluminium cement ceramsite foam concrete as described above, it is preferable that the light ceramic is made pottery for clay
Grain, haydites of book structure and one kind in lytag or a variety of light ceramics mixed with arbitrary proportion.
Self-compaction sulphate aluminium cement ceramsite foam concrete as described above, it is preferable that the fiber be polymer fiber,
One kind in glass fibre and mineral fibres or a variety of fibers mixed in any proportion.
Self-compaction sulphate aluminium cement ceramsite foam concrete as described above, it is preferable that the water-reducing agent is naphthalene system coagulation
Native water-reducing agent, water-reducing rate are more than 20%.
A kind of preparation method of the self-compaction sulphate aluminium cement ceramsite foam concrete, the preparation method include
Following steps：
1) it is put into concrete mixer and is stirred after weighing cementitious material, light ceramic, fiber by said ratio
Even, mixing time 0.5-2min obtains concrete drier；
2) concrete water and water-reducing agent are weighed according to the ratio；Water-reducing agent after weighing is poured into concrete water and is stirred
Uniformly, mixing time 0.5-1.5min；
3) be further continued for whipping step 1) in concrete drier, and will be stirred evenly in step 2) the stirring during
Concrete water and water-reducing agent are integrally poured into blender, after stirring 2-4min, obtain sulphate aluminium cement haydite concrete slurry
Body, for use；
4) foaming agent water and foaming agent are weighed according to the ratio；Foaming agent after weighing is poured into foaming agent to be stirred in water
Uniformly, mixing time 0.5-1.5min obtains foaming agent solution；
5) foamed dose of the foaming agent solution in step 4) is blown out into concrete foam, adds concrete foam according to proportioning
Enter in the sulphate aluminium cement haydite concrete slurry obtained into step 3), continues to stir 0.5-1.5min, derive from closely knit sulphur
Aluminate cement ceramsite foam concrete.
Compared with the immediate prior art, technical solution provided by the invention has the advantages that：
1, in the inventive solutions due to having added the water-reducing agent of high additive, self-compaction haydite foam of the invention
The divergence of concrete is in 60cm or more, and T50 is less than 2s, and fillibility is very good, when carrying out mold molding surface state and
Foam concrete surface of vibrating is close, and without problem of appearance such as honeycomb, pitted skins, corner is complete, need not be repaired, not needed
It is cut, overcomes the problems in existing ceramsite foam concrete preparation process.
2, for technical scheme of the present invention using quick hardening sulphoaluminate cement as major gelled material, hardening is fast, need not mix
Add coagulant, concrete strength unaffected；The rupture of foam is also preferably inhibited simultaneously.
3, fiber is added to form fibre in the problem of floating present invention is alternatively directed to haydite in large fluidity foam concrete
Net is tieed up, since fibre diameter is small, surface area is big, and the adhesion strength between cement slurry is big, therefore haydite can be inhibited in slurry
In floating or sinking.The fast hard characteristic of sulphate aluminium cement further suppresses movement of the haydite in slurry simultaneously, ensures
The uniformity of foam concrete.
4, preparation method simple operations of the present invention are easy, easy to control, energy-saving, reduce production cost, can obtain big
The popularization and application of power.
Specific implementation mode
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is general
The every other embodiment that logical technical staff is obtained, shall fall within the protection scope of the present invention.
A kind of self-compaction sulphate aluminium cement ceramsite foam concrete of specific embodiments of the present invention offer and its preparation side
Method, self-compaction sulphate aluminium cement ceramsite foam concrete prepared by the present invention, fillibility is very good, when carrying out mold molding
Surface state is close with foam concrete surface of vibrating, and without problem of appearance such as honeycomb, pitted skins, corner is complete, need not carry out
Repairing, need not be cut, overcome the problems in existing ceramsite foam concrete preparation process；Hardening is fast, need not mix
Add coagulant, concrete strength unaffected；The rupture of foam is also preferably inhibited simultaneously.Fiber is added to be formed in the present invention
Web can inhibit floating or sinking of the haydite in slurry.The fast hard characteristic of sulphate aluminium cement further suppresses simultaneously
Movement of the haydite in slurry, ensure that the uniformity of foam concrete.The preparation method simple operations are easy, easy to control,
It is energy-saving, production cost is reduced, popularization and application energetically can be obtained.
First, the present invention provides a kind of self-compaction sulphate aluminium cement ceramsite foam concrete, the self-compaction sulphur aluminic acids
Salt cement ceramsite foam concrete includes：Sulphate aluminium cement haydite concrete and concrete foam are 1: 1-3 according to volume ratio
The ratio of (such as 1.1,1.2,1.3,1.5,1.7,1.9,2,2.2,2.4,2.5,2.6,2.7,2.8,2.9) stirs.
Wherein, sulphate aluminium cement haydite concrete of the invention, is counted in parts by weight, including following component：Be gelled material
Material, 100 parts；Concrete water, 30-50 parts (such as 33 parts, 35 parts, 36 parts, 38 parts, 40 parts, 42 parts, 44 parts, 45 parts, 46 parts,
48 parts, 49 parts)；Water-reducing agent, 0.8-1.5 parts (such as 0.9 part, 0.95 part, 1 part, 1.1 parts, 1.2 parts, 1.3 parts, 1.35 parts, 1.4
Part, 1.45 parts)；Light ceramic, 80-150 parts (such as 85 parts, 90 parts, 95 parts, 100 parts, 105 parts, 110 parts, 115 parts, 120
Part, 125 parts, 130 parts, 135 parts, 140 parts, 145 parts)；Fiber, 0.1-0.4 parts (such as 0.12 part, 0.15 part, 0.18 part, 0.2
Part, 0.23 part, 0.25 part, 0.28 part, 0.3 part, 0.32 part, 0.35 part, 0.38 part).
The concrete foam of the present invention be by foaming agent and foaming agent water by weight 1: 15-60 (such as 17,20,23,
25,28,30,33,35,37,40,45,48,50,53,55,58) the foamed machine foaming institute shape again of solution made of ratio stirring
At light foam.Preferably, the foaming agent is commercially available vegetable protein foaming agent, animal protein foaming agent, compound hair
One kind in infusion.
It is further preferred that cementitious material is by quick hardening sulphoaluminate cement and flyash 1: 0-0.25 (example by weight
Such as 0.05,0.08,0.1,0.12,0.14,0.15,0.17,0.18,0.2,0.21,0.22,0.23,0.24,0.245) ratio
Powder made of being stirred.Preferably, the grade of quick hardening sulphoaluminate cement is 52.5 or 62.5；Preferably, flyash
Grade is two level or level-one.
In a specific embodiment of the present invention, light ceramic is one in leca, haydites of book structure and lytag
Kind or a variety of light ceramics mixed with arbitrary proportion.Preferably, the continuous grading that light ceramic is 2.5-10mm is made pottery
Grain, density rating are 400 grades.
In a specific embodiment of the present invention, fiber is one kind in polymer fiber, glass fibre and mineral fibres, or
A variety of fibers mixed in any proportion.Preferably, fibre diameter be less than 20 μm (such as 19 μm, 18 μm, 17 μm, 15 μm,
10 μm, 8 μm, 6 μm, 4 μm, 2 μm, 1 μm), length be more than 10mm (such as 12mm, 14mm, 15mm, 18mm, 20mm, 30mm,
35mm)。
In a specific embodiment of the present invention, water-reducing agent is cement water reducing agent, and water-reducing agent is commercially available naphthalene series concrete
Water-reducing agent, water-reducing rate are more than 20%.
In addition, specific embodiments of the present invention also provide a kind of system of self-compaction sulphate aluminium cement ceramsite foam concrete
Preparation Method, the preparation method include the following steps：
1) it is put into concrete mixer and is stirred after weighing cementitious material, light ceramic, fiber by said ratio
It is even, mixing time be 0.5-2min (such as 0.6min, 0.7min, 0.8min, 0.9min, 1min, 1.2min, 1.4min,
1.6min, 1.8min, 1.9min), obtain concrete drier；
2) concrete water and water-reducing agent are weighed according to the ratio；Water-reducing agent after weighing is poured into concrete water and is stirred
Uniformly, mixing time be 0.5-1.5min (such as 0.6min, 0.7min, 0.8min, 0.9min, 1min, 1.1min, 1.2min,
1.4min)；
3) be further continued for whipping step 1) in concrete drier, and will be stirred evenly in step 2) the stirring during
Concrete water and water-reducing agent are integrally poured into blender, stirring 2-4min (such as 2.2min, 2.4min, 2.6min,
2.8min, 3min, 3.2min, 3.4min, 3.6min, 3.8min) after, sulphate aluminium cement haydite concrete slurry is obtained, for use；
4) foaming agent water and foaming agent are weighed according to the ratio；Foaming agent after weighing is poured into foaming agent to be stirred in water
Uniformly, mixing time be 0.5-1.5min (such as 0.6min, 0.7min, 0.8min, 0.9min, 1min, 1.1min, 1.2min,
1.4min), foaming agent solution is obtained；
5) foamed dose of the foaming agent solution in step 4) is blown out into concrete foam, adds concrete foam according to proportioning
Enter in the sulphate aluminium cement haydite concrete slurry obtained into step 3), continue stir 0.5-1.5min (such as 0.6min,
0.7min, 0.8min, 0.9min, 1min, 1.1min, 1.2min, 1.4min), derive from closely knit sulphate aluminium cement haydite foam
Concrete.
Embodiment 1
A kind of preparation method of self-compaction sulphate aluminium cement ceramsite foam concrete of the present embodiment, the preparation method packet
Include following steps：
1) 100 parts of quick hardening sulphoaluminate cements of cementitious material, 80 parts of light ceramic, 0.1 part of fiber are claimed by said ratio
It is put into concrete mixer and stirs evenly after amount is good, mixing time 1min obtains concrete drier；
2) 0.8 part of 50 parts of concrete water and water-reducing agent are weighed according to the ratio；Water-reducing agent after weighing is poured into concrete
It is stirred evenly in water, mixing time 1min；
3) be further continued for whipping step 1) in concrete drier, and will be stirred evenly in step 2) the stirring during
Concrete water and water-reducing agent are integrally poured into blender, after stirring 3min, obtain sulphate aluminium cement haydite concrete slurry,
For use；
4) ratio for being 1: 15 in the ratio of foaming agent and foaming agent water；Foaming agent after weighing is poured into foaming agent
It is stirred evenly in water, mixing time 1min obtains foaming agent solution；
5) foamed dose of the foaming agent solution in step 4) is blown out into concrete foam, by sulphate aluminium cement haydite coagulation
Concrete foam is added to the sulphate aluminium cement haydite obtained in step 3) by the volume ratio of soil and concrete foam for 1: 2
In concrete mortar, continues to stir 1min, derive from closely knit sulphate aluminium cement ceramsite foam concrete.
Embodiment 2
A kind of preparation method of self-compaction sulphate aluminium cement ceramsite foam concrete of the present embodiment, the preparation method packet
Include following steps：
1) by 75 parts of quick hardening sulphoaluminate cements of cementitious material and 25 parts of flyash, 100 parts of light ceramic, 0.3 part of fiber
It is put into concrete mixer and stirs evenly after being weighed by said ratio, mixing time 1min obtains concrete drier；
2) 1.5 parts of 35 parts of concrete water and water-reducing agent are weighed according to the ratio；Water-reducing agent after weighing is poured into concrete
It is stirred evenly in water, mixing time 1min；
3) be further continued for whipping step 1) in concrete drier, and will be stirred evenly in step 2) the stirring during
Concrete water and water-reducing agent are integrally poured into blender, after stirring 3min, obtain sulphate aluminium cement haydite concrete slurry,
For use；
4) ratio for being 1: 40 in the ratio of foaming agent and foaming agent water；Foaming agent after weighing is poured into foaming agent
It is stirred evenly in water, mixing time 1min obtains foaming agent solution；
5) foamed dose of the foaming agent solution in step 4) is blown out into concrete foam, by sulphate aluminium cement haydite coagulation
Concrete foam is added to the sulphate aluminium cement haydite obtained in step 3) by the volume ratio of soil and concrete foam for 1: 3
In concrete mortar, continues to stir 1min, derive from closely knit sulphate aluminium cement ceramsite foam concrete.
Embodiment 3
A kind of preparation method of self-compaction sulphate aluminium cement ceramsite foam concrete of the present embodiment, the preparation method packet
Include following steps：
1) by 90 parts of quick hardening sulphoaluminate cements of cementitious material and 10 parts of flyash, 150 parts of light ceramic, 0.4 part of fiber
It is put into concrete mixer and stirs evenly after being weighed by said ratio, mixing time 2min obtains concrete drier；
2) 1.5 parts of 30 parts of concrete water and water-reducing agent are weighed according to the ratio；Water-reducing agent after weighing is poured into concrete
It is stirred evenly in water, mixing time 0.5min；
3) be further continued for whipping step 1) in concrete drier, and will be stirred evenly in step 2) the stirring during
Concrete water and water-reducing agent are integrally poured into blender, after stirring 4min, obtain sulphate aluminium cement haydite concrete slurry,
For use；
4) ratio for being 1: 60 in the ratio of foaming agent and foaming agent water；Foaming agent after weighing is poured into foaming agent
It is stirred evenly in water, mixing time 1.5min obtains foaming agent solution；
5) foamed dose of the foaming agent solution in step 4) is blown out into concrete foam, by sulphate aluminium cement haydite coagulation
Concrete foam is added to the sulphate aluminium cement haydite obtained in step 3) by the volume ratio of soil and concrete foam for 1: 1
In concrete mortar, continues to stir 1.5min, derive from closely knit sulphate aluminium cement ceramsite foam concrete.
Embodiment 4
A kind of preparation method of self-compaction sulphate aluminium cement ceramsite foam concrete of the present embodiment, the preparation method packet
Include following steps：
1) 95 parts of quick hardening sulphoaluminate cements of cementitious material and 5 parts of flyash, 120 parts of light ceramic, 0.3 part of fiber are pressed
Said ratio is put into concrete mixer after weighing and stirs evenly, and mixing time 0.5min obtains concrete drier；
2) 1.2 parts of 35 parts of concrete water and water-reducing agent are weighed according to the ratio；Water-reducing agent after weighing is poured into concrete
It is stirred evenly in water, mixing time 1min；
3) be further continued for whipping step 1) in concrete drier, and will be stirred evenly in step 2) the stirring during
Concrete water and water-reducing agent are integrally poured into blender, after stirring 3min, obtain sulphate aluminium cement haydite concrete slurry,
For use；
4) ratio for being 1: 50 in the ratio of foaming agent and foaming agent water；Foaming agent after weighing is poured into foaming agent
It is stirred evenly in water, mixing time 1min obtains foaming agent solution；
5) foamed dose of the foaming agent solution in step 4) is blown out into concrete foam, by sulphate aluminium cement haydite coagulation
Concrete foam is added to the sulphate aluminium cement haydite obtained in step 3) by the volume ratio of soil and concrete foam for 1: 2
In concrete mortar, continues to stir 1.5min, derive from closely knit sulphate aluminium cement ceramsite foam concrete.
Embodiment 5
A kind of preparation method of self-compaction sulphate aluminium cement ceramsite foam concrete of the present embodiment, the preparation method packet
Include following steps：
1) by 80 parts of quick hardening sulphoaluminate cements of cementitious material and 20 parts of flyash, 110 parts of light ceramic, 0.25 part of fiber
It is put into concrete mixer and stirs evenly after being weighed by said ratio, mixing time 1min obtains concrete drier；
2) 1.4 parts of 30 parts of concrete water and water-reducing agent are weighed according to the ratio；Water-reducing agent after weighing is poured into concrete
It is stirred evenly in water, mixing time 1.5min；
3) be further continued for whipping step 1) in concrete drier, and will be stirred evenly in step 2) the stirring during
Concrete water and water-reducing agent are integrally poured into blender, after stirring 2.5min, obtain sulphate aluminium cement haydite concrete slurry
Body, for use；
4) ratio for being 1: 45 in the ratio of foaming agent and foaming agent water；Foaming agent after weighing is poured into foaming agent
It is stirred evenly in water, mixing time 1min obtains foaming agent solution；
5) foamed dose of the foaming agent solution in step 4) is blown out into concrete foam, by sulphate aluminium cement haydite coagulation
Concrete foam is added to the sulphate aluminium cement haydite obtained in step 3) by the volume ratio of soil and concrete foam for 1: 2
In concrete mortar, continues to stir 1.5min, derive from closely knit sulphate aluminium cement ceramsite foam concrete.
Embodiment 6
A kind of preparation method of self-compaction sulphate aluminium cement ceramsite foam concrete of the present embodiment, the preparation method packet
Include following steps：
1) 85 parts of quick hardening sulphoaluminate cements of cementitious material and 15 parts of flyash, 90 parts of light ceramic, 0.2 part of fiber are pressed
Said ratio is put into concrete mixer after weighing and stirs evenly, and mixing time 1min obtains concrete drier；
2) 1.2 parts of 42 parts of concrete water and water-reducing agent are weighed according to the ratio；Water-reducing agent after weighing is poured into concrete
It is stirred evenly in water, mixing time 1min；
3) be further continued for whipping step 1) in concrete drier, and will be stirred evenly in step 2) the stirring during
Concrete water and water-reducing agent are integrally poured into blender, after stirring 2min, obtain sulphate aluminium cement haydite concrete slurry,
For use；
4) ratio for being 1: 20 in the ratio of foaming agent and foaming agent water；Foaming agent after weighing is poured into foaming agent
It is stirred evenly in water, mixing time 1min obtains foaming agent solution；
5) foamed dose of the foaming agent solution in step 4) is blown out into concrete foam, by sulphate aluminium cement haydite coagulation
Concrete foam is added to the sulphate aluminium cement obtained in step 3) pottery by the volume ratio of soil and concrete foam for 1: 1.5
In grain concrete mortar, continues to stir 0.5min, derive from closely knit sulphate aluminium cement ceramsite foam concrete.
According to by《Self-compacting concrete application technology regulation》(JGJ/T 283-2012) and《Foam concrete》(JG/T
Standard test 266-2011) carries out the self-compaction sulphate aluminium cement ceramsite foam concrete that above-described embodiment 1-6 is obtained
Performance detection, related performance indicators inspection result are shown in Table 1.
1 each embodiment performance indicator inspection result of table
In conclusion the present invention has following advantageous effects：
1, in the inventive solutions due to having added the water-reducing agent of high additive, self-compaction haydite foam of the invention
For the divergence of concrete in 60cm or more, T50 is less than 2s, refer specifically to slurry in divergence experiment expand to 50cm it is required when
Between be less than 2s；Its fillibility is very good, and when carrying out mold molding, surface state is close with foam concrete surface of vibrating, and does not have
The problem of appearance such as honeycomb, pitted skin, corner is complete, need not be repaired, and need not be cut, and existing haydite foam is overcome
The problems in concrete preparation process.
2, for technical scheme of the present invention using quick hardening sulphoaluminate cement as major gelled material, hardening is fast, need not mix
Add coagulant, concrete strength unaffected；The rupture of foam is also preferably inhibited simultaneously.
3, fiber is added to form fibre in the problem of floating present invention is alternatively directed to haydite in large fluidity foam concrete
Net is tieed up, since fibre diameter is small, surface area is big, and the adhesion strength between cement slurry is big, therefore haydite can be inhibited in slurry
In floating or sinking.The fast hard characteristic of sulphate aluminium cement further suppresses movement of the haydite in slurry simultaneously, ensures
The uniformity of foam concrete.
4, preparation method simple operations of the present invention are easy, easy to control, energy-saving, reduce production cost, can obtain big
The popularization and application of power.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God and principle within, any modification, equivalent replacement, improvement and so on, accompanying claims protection domain of the present invention it
It is interior.
Claims (10)
1. a kind of self-compaction sulphate aluminium cement ceramsite foam concrete, which is characterized in that the self-compaction sulphate aluminium cement
Ceramsite foam concrete includes：The ratio that sulphate aluminium cement haydite concrete and concrete foam are 1: 1-3 according to volume ratio
It stirs.
2. self-compaction sulphate aluminium cement ceramsite foam concrete as described in claim 1, which is characterized in that in parts by weight
Meter, the sulphate aluminium cement haydite concrete includes following component：
Cementitious material, 100 parts；Concrete water, 30-50 parts；Water-reducing agent, 0.8-1.5 parts；Light ceramic, 80-150 parts；It is fine
Dimension, 0.1-0.4 parts.
3. self-compaction sulphate aluminium cement ceramsite foam concrete as claimed in claim 1 or 2, which is characterized in that described mixed
Solidifying soil foam is that solution made of being stirred by weight 1: 15-60 ratio by foaming agent and foaming agent water again send out by foamed machine
Bubble is formed by light foam.
4. self-compaction sulphate aluminium cement ceramsite foam concrete as claimed in claim 3, which is characterized in that the foaming agent
For one kind in vegetable protein foaming agent, animal protein foaming agent and compound foaming agent.
5. self-compaction sulphate aluminium cement ceramsite foam concrete as claimed in claim 2, which is characterized in that the gelling material
Material is powder made of being stirred by weight 1: 0-0.25 ratio by quick hardening sulphoaluminate cement and flyash.
6. self-compaction sulphate aluminium cement ceramsite foam concrete as claimed in claim 5, which is characterized in that the fast hard sulphur
The grade of aluminate cement is 52.5 or 62.5；
The grade of the flyash is two level or level-one.
7. self-compaction sulphate aluminium cement ceramsite foam concrete as claimed in claim 2, which is characterized in that the Lightweight ceramic
Grain is one kind or a variety of Lightweight ceramics mixed with arbitrary proportion in leca, haydites of book structure and lytag
Grain.
8. self-compaction sulphate aluminium cement ceramsite foam concrete as claimed in claim 2, which is characterized in that the fiber is
One kind in polymer fiber, glass fibre and mineral fibres or a variety of fibers mixed in any proportion.
9. self-compaction sulphate aluminium cement ceramsite foam concrete as claimed in claim 2, which is characterized in that the water-reducing agent
It is naphthalene series concrete water reducing agent, water-reducing rate is more than 20%.
10. a kind of preparation side of such as claim 1-9 any one of them self-compaction sulphate aluminium cement ceramsite foam concretes
Method, which is characterized in that the preparation method includes the following steps：
1) it is put into concrete mixer and stirs evenly after weighing cementitious material, light ceramic, fiber by said ratio, stir
It is 0.5-2min to mix the time, obtains concrete drier；
2) concrete water and water-reducing agent are weighed according to the ratio；Water-reducing agent after weighing is poured into concrete water and is stirred
It is even, mixing time 0.5-1.5min；
3) be further continued for whipping step 1) in concrete drier, and the coagulation that will be stirred evenly in step 2) during stirring
Soil water and water-reducing agent are integrally poured into blender, after stirring 2-4min, are obtained sulphate aluminium cement haydite concrete slurry, are waited for
With；
4) foaming agent water and foaming agent are weighed according to the ratio；Foaming agent after weighing is poured into foaming agent water and is stirred
Even, mixing time 0.5-1.5min obtains foaming agent solution；
5) foamed dose of the foaming agent solution in step 4) is blown out into concrete foam, is added to concrete foam according to proportioning
In the sulphate aluminium cement haydite concrete slurry obtained in step 3), continues to stir 0.5-1.5min, derive from closely knit sulphur aluminic acid
Salt cement ceramsite foam concrete.
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| CN113024177A (en) * | 2019-12-24 | 2021-06-25 | 南通市建设混凝土有限公司 | Renewable light pervious concrete and preparation process thereof |
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