CN109020383A - A kind of high strength foam concrete - Google Patents
A kind of high strength foam concrete Download PDFInfo
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- CN109020383A CN109020383A CN201811001900.2A CN201811001900A CN109020383A CN 109020383 A CN109020383 A CN 109020383A CN 201811001900 A CN201811001900 A CN 201811001900A CN 109020383 A CN109020383 A CN 109020383A
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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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F251/00—Macromolecular compounds obtained by polymerising monomers on to polysaccharides or derivatives thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/06—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals
- C08F283/065—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals on to unsaturated polyethers, polyoxymethylenes or polyacetals
-
- 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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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of high strength foam concretes, its raw material includes: 45-60 parts of ordinary portland cement by weight, 17-30 parts of aggregate, 0.8-1.6 parts of foaming agent, 0.5-1 parts of reinforcing fiber, 1.3-5 parts of zeolite, 8-15 parts of flyash, 0.8-2.6 parts of montmorillonite, 3-8 parts of granite stone powder, 1-3.2 parts of glass powder, 0.1-0.32 parts of carbon nanotube, 1.3-2.1 parts of calcium carbonate crystal whisker, 0.5-1.3 parts of metakaolin, 2-4.8 parts of organic polymeric emulsions, 0.01-0.03 parts of hydroxypropyl methyl cellulose ether, 0.3-1.3 parts of calcium chloride, 0.8-1.5 parts of water-reducing agent, 18-25 parts of water.High strength foam concrete proposed by the present invention, intensity is high, and water absorption rate is small, not easy to crack.
Description
Technical field
The present invention relates to technical field of concrete more particularly to a kind of high strength foam concretes.
Background technique
Foam concrete is that foam made of foaming agent is added to cement slurry or cement using physical mechanical foam pattern
In mortar, various specifications are poured into after uniform stirring, and the lightweight concrete with a large amount of sealed porositys, tool are formed by maintenance
There is the features such as light, thermal and insulating performance is good, sound-proof refractory is good, anti-seismic performance is good, environmentally friendly, is widely used at present, so
And the defect that the existing generally existing intensity of foam concrete is low, it is not able to satisfy the requirement of building structure, limits foam
Concrete is promoted on a large scale.
Summary of the invention
Technical problems based on background technology, the invention proposes a kind of high strength foam concretes, and intensity is high,
Water absorption rate is small, not easy to crack.
A kind of high strength foam concrete proposed by the present invention, raw material include: ordinary portland cement 45- by weight
60 parts, 17-30 parts of aggregate, 0.8-1.6 parts of foaming agent, 0.5-1 parts of reinforcing fiber, 1.3-5 parts of zeolite, 8-15 parts of flyash, illiteracy
De- 0.8-2.6 parts of soil, 3-8 parts of granite stone powder, 1-3.2 parts of glass powder, 0.1-0.32 parts of carbon nanotube, calcium carbonate crystal whisker 1.3-
2.1 parts, 0.5-1.3 parts of metakaolin, 2-4.8 parts of organic polymeric emulsions, 0.01-0.03 parts of hydroxypropyl methyl cellulose ether,
0.3-1.3 parts of calcium chloride, 0.8-1.5 parts of water-reducing agent, 18-25 parts of water.
Preferably, the mixture for the middle sand composition that the aggregate is gangue and average grain diameter is 0.5-0.8mm, and bastard coal
The weight ratio for the middle sand that stone, average grain diameter are 0.5-0.8mm is 3-9:1-4.
Preferably, the foaming agent is foaming agent LG-2258.
Preferably, the reinforcing fiber is the mixing of polypropylene fibre, basalt fibre, coir fibre, polyformaldehyde fibre
Object, and the weight ratio of polypropylene fibre, basalt fibre, coir fibre, polyformaldehyde fibre is 2-9:1-4:3-8:4-12.
Preferably, the metakaolin is the modified metakaolin of vinyltriethoxysilane.
Preferably, the average grain diameter of the granite stone powder is 50-85 μm.
Preferably, the carbon nanotube is the carbon nanotube of corona treatment.
Preferably, the organic polymeric emulsions are the mixture of epoxy resin latex, styrene-butadiene emulsion, and epoxy resin is newborn
Liquid, styrene-butadiene emulsion weight ratio be 2-10:3-5.
Preferably, the water-reducing agent is prepared according to following technique: starch being added to the water, hydroxide is added after gelatinization
Sodium and allyl glycidyl ether react 6-8.5h at 70-85 DEG C, cool down after reaction, adjust pH value and obtain for neutrality
Material A；Material A is added in the ethanol solution of sodium hydroxide, 30-55min is stirred to react at 30-40 DEG C, in vacuum condition
Lower addition monoxone stirs 15-30min, 20-35min is stirred to react at 45-50 DEG C, is then stirred to react at 55-63 DEG C
35-60min, adjusting pH value is 7 after being cooled to room temperature, is centrifuged, washs, being dried to obtain material B；By material B, isopentene group polyoxy
Vinethene is uniformly mixed with water, and hydrogen peroxide is added, and acrylic acid aqueous solution, aqueous ascorbic acid and molecular-weight adjusting is then added
Agent aqueous solution reacts 60-100min at 30-35 DEG C, and adjusting pH value is 6-8, obtains the water-reducing agent after cooling.
Preferably, starch, allyl glycidyl ether weight ratio be 8.8-9.5:1-2.8；It is material A, chloroacetic heavy
Amount is than being 3-5:1；Material B, isopentene group polyoxyethylene ether, the molar ratio of acrylic acid are 1:3-5:0.5-0.75.
High strength foam concrete of the present invention in raw material, joined reinforcing fiber, calcium carbonate crystal whisker and carbon nanometer
Pipe cooperation, three have synergistic function, in inside concrete in random distribution and mutual overlap joint, reduce the surface of foam
Tension, while reinforced action is played, support aggregate prevents aggregate sinking from isolating, and can reduce due to cement matrix is shunk
The micro-crack of initiation simultaneously reduces its size, delays and prevent the extension of micro-crack in matrix, to reach toughening effect；Glass powder
In contain silica composition, have potential Pozzolanic feature, be added into system, the good dispersion in system, can and cement
Ca (OH) in slurry2Secondary reaction of hydration occurs for crystal, improves its degree of orientation, cooperates with montmorillonite, metakaolin, by force
The micro- microscopical structure of Behavior of Hardened Cement Paste is changed, has optimized the distribution of cement matrix internal orifice dimension and pore structure, keep it more closely knit, make strong concrete
Degree increases；Organic polymeric emulsions are added in concrete, are significantly reduced the size of stomata, optimize pore-size distribution, improve mixed
Resistance to compression and the flexural strength for coagulating soil, reduce the water absorption rate of concrete, reduce the dry density of foam concrete to a certain extent,
Cooperate simultaneously with flyash and granite stone powder, significantly improves the freeze proof weatherability of concrete；In zeolite addition system, with powder
Coal ash cooperation, improves the early strength and later strength of foam concrete；In the preparation process of preferred embodiment water-reducing agent, it will form sediment
It is reacted after paste mixing with allyl glycidyl ether, the epoxy group of hydroxyl and allyl glycidyl ether in starch has occurred
Reaction, has obtained double bond containing starch, i.e. material A, later using material A and monoxone as raw material, has controlled the condition of reaction, make chlorine
Acetic acid is reacted with the hydroxyl in material A, carboxymethyl modified starch, i.e. material B has been obtained, later with material B, iso-amylene
Base polyoxyethylene ether and acrylic acid are raw material, control the condition of reaction, make three that polymerization reaction have occurred, have obtained the diminishing
Agent, mobility is big, and dissolubility is good, and stability is excellent, is added into system, has preferable applicability with cement,
In cement minerals, it can be preferentially adsorbed on the surface of tricalcium aluminate, delayed the aquation of cement early stage, improve the flowing of system
Degree assigns system excellent dispersibility, while keeping concrete mix little loss of slump, workability good, the coagulation after hardening
Native intensity is high.
Specific embodiment
In the following, technical solution of the present invention is described in detail by specific embodiment.
Embodiment 1
A kind of high strength foam concrete proposed by the present invention, raw material include: ordinary portland cement 60 by weight
Part, 17 parts of aggregate, 1.6 parts of foaming agent, 0.5 part of reinforcing fiber, 5 parts of silicon ash, 8 parts of flyash, 0.8 part of montmorillonite, granite
8 parts of powder, 1 part of glass powder, 0.32 part of carbon nanotube, 1.3 parts of calcium carbonate crystal whisker, 1.3 parts of metakaolin, organic polymeric emulsions 2
Part, 0.03 part of hydroxypropyl methyl cellulose ether, 0.3 part of calcium chloride, 1.5 parts of water-reducing agent, 18 parts of water.
Embodiment 2
A kind of high strength foam concrete proposed by the present invention, raw material include: ordinary portland cement 45 by weight
Part, 30 parts of aggregate, 0.8 part of foaming agent, 1 part of reinforcing fiber, 1.3 parts of zeolite, 15 parts of flyash, 2.6 parts of montmorillonite, granite
3 parts of powder, 3.2 parts of glass powder, 0.1 part of carbon nanotube, 2.1 parts of calcium carbonate crystal whisker, 0.5 part of metakaolin, organic polymeric emulsions
4.8 parts, 0.01 part of hydroxypropyl methyl cellulose ether, 1.3 parts of calcium chloride, 0.8 part of water-reducing agent, 25 parts of water.
Embodiment 3
A kind of high strength foam concrete proposed by the present invention, raw material include: ordinary portland cement 57 by weight
Part, 19 parts of aggregate, 1.5 parts of foaming agent, 0.6 part of reinforcing fiber, 4.7 parts of silicon ash, 11 parts of flyash, 2.1 parts of montmorillonite, granite
4 parts of mountain flour, 3 parts of glass powder, 0.17 part of carbon nanotube, 2 parts of calcium carbonate crystal whisker, 0.7 part of metakaolin, organic polymeric emulsions
4.5 parts, 0.016 part of hydroxypropyl methyl cellulose ether, 1.1 parts of calcium chloride, 1 part of water-reducing agent, 23 parts of water；
Wherein, the mixture for the middle sand composition that the aggregate is gangue and average grain diameter is 0.5mm, and it is gangue, flat
The weight ratio for the middle sand that equal partial size is 0.5mm is 3:4；
The foaming agent is foaming agent LG-2258；
The reinforcing fiber is the mixture of polypropylene fibre, basalt fibre, coir fibre, polyformaldehyde fibre, and poly-
Tacryl, basalt fibre, coir fibre, polyformaldehyde fibre weight ratio be 2:4:3:12；
The metakaolin is the modified metakaolin of vinyltriethoxysilane；
The average grain diameter of the granite stone powder is 50 μm；
The carbon nanotube is the carbon nanotube of corona treatment；
The organic polymeric emulsions are the mixture of epoxy resin latex, styrene-butadiene emulsion, and epoxy resin latex, butylbenzene
The weight ratio of lotion is 10:3；
The water-reducing agent is prepared according to following technique: starch being added to the water, sodium hydroxide and alkene are added after gelatinization
Propyl glycidyl ether is reacted 8.5h at 70 DEG C, is cooled down after reaction, and adjusting pH value is that neutrality obtains material A；By material
A is added in the ethanol solution of sodium hydroxide, and 55min is stirred to react at 30 DEG C, monoxone is added under vacuum conditions, stirs
15min is stirred to react 20min at 50 DEG C, is then stirred to react 35min at 63 DEG C, and adjusting pH value is after being cooled to room temperature
7, it is centrifuged, washs, being dried to obtain material B；Material B, isopentene group polyoxyethylene ether are uniformly mixed with water, hydrogen peroxide is added,
Then acrylic acid aqueous solution, aqueous ascorbic acid and molecular weight regulator aqueous solution is added, 60min is reacted at 35 DEG C, adjusts
Saving pH value is 8, obtains the water-reducing agent after cooling；Wherein, starch, allyl glycidyl ether weight ratio be 8.8:2.8；Object
Expect that A, chloroacetic weight ratio are 3:1；Material B, isopentene group polyoxyethylene ether, the molar ratio of acrylic acid are 1:5:0.5.
Embodiment 4
A kind of high strength foam concrete proposed by the present invention, raw material include: ordinary portland cement 48 by weight
Part, 27 parts of aggregate, 0.9 part of foaming agent, 0.95 part of reinforcing fiber, 3.2 parts of silicon ash, 13.8 parts of flyash, 1 part of montmorillonite, Hua Gang
7.2 parts of Rock Powder, 1.3 parts of glass powder, 0.3 part of carbon nanotube, 1.7 parts of calcium carbonate crystal whisker, 1 part of metakaolin, organic polymer
2.8 parts of lotion, 0.027 part of hydroxypropyl methyl cellulose ether, 0.7 part of calcium chloride, 1.3 parts of water-reducing agent, 19 parts of water；
Wherein, the mixture for the middle sand composition that the aggregate is gangue and average grain diameter is 0.8mm, and it is gangue, flat
The weight ratio for the middle sand that equal partial size is 0.8mm is 9:1；
The foaming agent is foaming agent LG-2258；
The reinforcing fiber is the mixture of polypropylene fibre, basalt fibre, coir fibre, polyformaldehyde fibre, and poly-
Tacryl, basalt fibre, coir fibre, polyformaldehyde fibre weight ratio be 9:1:8:4；
The metakaolin is the modified metakaolin of vinyltriethoxysilane；
The average grain diameter of the granite stone powder is 85 μm；
The carbon nanotube is the carbon nanotube of corona treatment；
The organic polymeric emulsions are the mixture of epoxy resin latex, styrene-butadiene emulsion, and epoxy resin latex, butylbenzene
The weight ratio of lotion is 2:5；
The water-reducing agent is prepared according to following technique: starch being added to the water, sodium hydroxide and alkene are added after gelatinization
Propyl glycidyl ether is reacted 6h at 85 DEG C, is cooled down after reaction, and adjusting pH value is that neutrality obtains material A；By material A
It is added in the ethanol solution of sodium hydroxide, 30min is stirred to react at 40 DEG C, monoxone is added under vacuum conditions, stir
30min is stirred to react 35min at 45 DEG C, is then stirred to react 60min at 55 DEG C, and adjusting pH value is after being cooled to room temperature
7, it is centrifuged, washs, being dried to obtain material B；Material B, isopentene group polyoxyethylene ether are uniformly mixed with water, hydrogen peroxide is added,
Then acrylic acid aqueous solution, aqueous ascorbic acid and molecular weight regulator aqueous solution is added, 100min is reacted at 30 DEG C, adjusts
Saving pH value is 6, obtains the water-reducing agent after cooling；Wherein, starch, allyl glycidyl ether weight ratio be 9.5:1；Material
A, chloroacetic weight ratio is 5:1；Material B, isopentene group polyoxyethylene ether, the molar ratio of acrylic acid are 1:3:0.75.
Embodiment 5
A kind of high strength foam concrete proposed by the present invention, raw material include: ordinary portland cement 52 by weight
Part, 22 parts of aggregate, 1.3 parts of foaming agent, 0.7 part of reinforcing fiber, 3.7 parts of silicon ash, 12 parts of flyash, 2 parts of montmorillonite, granite
5.3 parts of powder, 2.1 parts of glass powder, 0.19 part of carbon nanotube, 1.7 parts of calcium carbonate crystal whisker, 1 part of metakaolin, organic polymeric emulsions
3 parts, 0.015 part of hydroxypropyl methyl cellulose ether, 1 part of calcium chloride, 1.2 parts of water-reducing agent, 20 parts of water；
Wherein, the mixture for the middle sand composition that the aggregate is gangue and average grain diameter is 0.7mm, and it is gangue, flat
The weight ratio for the middle sand that equal partial size is 0.7mm is 7:3；
The foaming agent is foaming agent LG-2258；
The reinforcing fiber is the mixture of polypropylene fibre, basalt fibre, coir fibre, polyformaldehyde fibre, and poly-
Tacryl, basalt fibre, coir fibre, polyformaldehyde fibre weight ratio be 5:3:6:7；
The metakaolin is the modified metakaolin of vinyltriethoxysilane；
The average grain diameter of the granite stone powder is 65 μm；
The carbon nanotube is the carbon nanotube of corona treatment；
The organic polymeric emulsions are the mixture of epoxy resin latex, styrene-butadiene emulsion, and epoxy resin latex, butylbenzene
The weight ratio of lotion is 7:4；
The water-reducing agent is prepared according to following technique: starch being added to the water, sodium hydroxide and alkene are added after gelatinization
Propyl glycidyl ether is reacted 7.5h at 80 DEG C, is cooled down after reaction, and adjusting pH value is that neutrality obtains material A；By material
A is added in the ethanol solution of sodium hydroxide, and 42min is stirred to react at 36 DEG C, monoxone is added under vacuum conditions, stirs
21min is stirred to react 29min at 48 DEG C, is then stirred to react 45min at 60 DEG C, and adjusting pH value is after being cooled to room temperature
7, it is centrifuged, washs, being dried to obtain material B；Material B, isopentene group polyoxyethylene ether are uniformly mixed with water, hydrogen peroxide is added,
Then acrylic acid aqueous solution, aqueous ascorbic acid and molecular weight regulator aqueous solution is added, 80min is reacted at 33 DEG C, adjusts
Saving pH value is 7, obtains the water-reducing agent after cooling；Wherein, starch, allyl glycidyl ether weight ratio be 9:1.8；Material
A, chloroacetic weight ratio is 4:1；Material B, isopentene group polyoxyethylene ether, the molar ratio of acrylic acid are 1:4:0.7.
The performance of high strength foam concrete described in embodiment 1-5 is detected, as a result as shown in the table:
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | |
| Bulk density/kg/m3 | 335 | 327 | 356 | 376 | 378 |
| Water absorption rate/% | 6.8 | 6.9 | 6.3 | 5.9 | 5.8 |
| 28d compression strength/MPa | 2.89 | 2.76 | 3.14 | 3.22 | 3.18 |
| Porosity/% | 10.9 | 10.5 | 10.2 | 9.7 | 9.6 |
Comparative example 1
A kind of foam concrete, raw material include: 60 parts of ordinary portland cement, 17 parts of aggregate, foaming agent by weight
1.6 parts, 0.5 part of reinforcing fiber, 5 parts of silicon ash, 8 parts of flyash, 8 parts of granite stone powder, 0.32 part of carbon nanotube, calcium carbonate crystal whisker
1.3 parts, 2 parts of organic polymeric emulsions, 0.03 part of hydroxypropyl methyl cellulose ether, 0.3 part of calcium chloride, 1.5 parts of water-reducing agent, water 18
Part.
The 28d intensity of the foam concrete of comparative example 1 is detected, is 2.01MPa, as known from compared to Example 1,
Strength reduction, it follows that glass powder, montmorillonite and metakaolin, which is added, can improve the intensity of concrete.
Comparative example 2
A kind of foam concrete, raw material include: 52 parts of ordinary portland cement, 22 parts of aggregate, foaming agent by weight
1.3 parts, 0.7 part of reinforcing fiber, 3.7 parts of silicon ash, 12 parts of flyash, 2 parts of montmorillonite, 5.3 parts of granite stone powder, glass powder 2.1
Part, 0.19 part of carbon nanotube, 1.7 parts of calcium carbonate crystal whisker, 1 part of metakaolin, 3 parts of organic polymeric emulsions, hydroxypropyl methyl are fine
Tie up plain 0.015 part of ether, 1 part of calcium chloride, 20 parts of water；
Wherein, the mixture for the middle sand composition that the aggregate is gangue and average grain diameter is 0.7mm, and it is gangue, flat
The weight ratio for the middle sand that equal partial size is 0.7mm is 7:3；
The foaming agent is foaming agent LG-2258；
The reinforcing fiber is the mixture of polypropylene fibre, basalt fibre, coir fibre, polyformaldehyde fibre, and poly-
Tacryl, basalt fibre, coir fibre, polyformaldehyde fibre weight ratio be 5:3:6:7；
The metakaolin is the modified metakaolin of vinyltriethoxysilane；
The average grain diameter of the granite stone powder is 65 μm；
The carbon nanotube is the carbon nanotube of corona treatment；
The organic polymeric emulsions are the mixture of epoxy resin latex, styrene-butadiene emulsion, and epoxy resin latex, butylbenzene
The weight ratio of lotion is 7:4.
The 28d intensity of the foam concrete of comparative example 2 is detected, is 2.56MPa, as known from compared to Example 5,
Strength reduction, it follows that the water-reducing agent being added in the present invention can improve the intensity of concrete.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of high strength foam concrete, which is characterized in that its raw material includes: ordinary portland cement 45-60 by weight
Part, 17-30 parts of aggregate, 0.8-1.6 parts of foaming agent, 0.5-1 parts of reinforcing fiber, 1.3-5 parts of zeolite, 8-15 parts of flyash, illiteracy are de-
0.8-2.6 parts native, 3-8 parts of granite stone powder, 1-3.2 parts of glass powder, 0.1-0.32 parts of carbon nanotube, calcium carbonate crystal whisker 1.3-
2.1 parts, 0.5-1.3 parts of metakaolin, 2-4.8 parts of organic polymeric emulsions, 0.01-0.03 parts of hydroxypropyl methyl cellulose ether,
0.3-1.3 parts of calcium chloride, 0.8-1.5 parts of water-reducing agent, 18-25 parts of water.
2. high strength foam concrete according to claim 1, which is characterized in that the aggregate is gangue and average grain diameter
For the mixture that the middle sand of 0.5-0.8mm forms, and the weight ratio of middle sand that gangue, average grain diameter are 0.5-0.8mm is 3-
9:1-4.
3. high strength foam concrete according to claim 1 or claim 2, which is characterized in that the foaming agent is foaming agent LG-
2258。
4. high strength foam concrete described in any one of -3 according to claim 1, which is characterized in that the reinforcing fiber is poly-
Tacryl, basalt fibre, coir fibre, polyformaldehyde fibre mixture, and polypropylene fibre, basalt fibre, coconut husk
Fiber, polyformaldehyde fibre weight ratio be 2-9:1-4:3-8:4-12.
5. high strength foam concrete described in any one of -4 according to claim 1, which is characterized in that the metakaolin is second
The modified metakaolin of alkenyl triethoxysilane.
6. high strength foam concrete described in any one of -5 according to claim 1, which is characterized in that the granite stone powder
Average grain diameter is 50-85 μm.
7. high strength foam concrete described in any one of -6 according to claim 1, which is characterized in that the carbon nanotube be etc.
The carbon nanotube of gas ions processing.
8. high strength foam concrete described in any one of -7 according to claim 1, which is characterized in that the organic polymer cream
Liquid is the mixture of epoxy resin latex, styrene-butadiene emulsion, and the weight ratio of epoxy resin latex, styrene-butadiene emulsion is 2-10:3-5.
9. high strength foam concrete described in any one of -8 according to claim 1, which is characterized in that the water-reducing agent according to
Prepared by lower technique: starch being added to the water, sodium hydroxide and allyl glycidyl ether are added after gelatinization, at 70-85 DEG C
Lower reaction 6-8.5h, cools down after reaction, and adjusting pH value is that neutrality obtains material A；Material A is added to the ethyl alcohol of sodium hydroxide
In solution, it is stirred to react 30-55min at 30-40 DEG C, monoxone is added under vacuum conditions, 15-30min is stirred, in 45-
It is stirred to react 20-35min at 50 DEG C, is then stirred to react 35-60min at 55-63 DEG C, adjusting pH value is after being cooled to room temperature
7, it is centrifuged, washs, being dried to obtain material B；Material B, isopentene group polyoxyethylene ether are uniformly mixed with water, hydrogen peroxide is added,
Then acrylic acid aqueous solution, aqueous ascorbic acid and molecular weight regulator aqueous solution is added, reacts 60- at 30-35 DEG C
100min, adjusting pH value are 6-8, obtain the water-reducing agent after cooling.
10. high strength foam concrete according to claim 9, which is characterized in that the weight of starch, allyl glycidyl ether
Amount is than being 8.8-9.5:1-2.8；Material A, chloroacetic weight ratio are 3-5:1；Material B, isopentene group polyoxyethylene ether, propylene
The molar ratio of acid is 1:3-5:0.5-0.75.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811001900.2A CN109020383A (en) | 2018-08-30 | 2018-08-30 | A kind of high strength foam concrete |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811001900.2A CN109020383A (en) | 2018-08-30 | 2018-08-30 | A kind of high strength foam concrete |
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| Publication Number | Publication Date |
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| CN109020383A true CN109020383A (en) | 2018-12-18 |
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| CN201811001900.2A Withdrawn CN109020383A (en) | 2018-08-30 | 2018-08-30 | A kind of high strength foam concrete |
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| CN (1) | CN109020383A (en) |
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| CN109776054A (en) * | 2019-03-27 | 2019-05-21 | 陇东学院 | A kind of civil engineering foam concrete |
| CN110115240A (en) * | 2019-04-17 | 2019-08-13 | 平湖市渔业技术推广与海洋资源服务中心 | A kind of environmental projectization zero is given up the ecologic breeding pool |
| CN110436961A (en) * | 2019-05-31 | 2019-11-12 | 中国建筑股份有限公司 | Cell concrete, insulated compound trabs based on gangue and preparation method thereof |
| CN112592120A (en) * | 2021-02-08 | 2021-04-02 | 梁水明 | Feldspar waste concrete and preparation method thereof |
| CN113279500A (en) * | 2021-05-31 | 2021-08-20 | 安徽华城兴建材科技有限公司 | Prevent splitting open dismantlement formula fiber cement board interior wall |
| CN114057449A (en) * | 2021-11-25 | 2022-02-18 | 深圳市中天元实业有限公司 | Light foam concrete |
| CN117886528A (en) * | 2024-03-18 | 2024-04-16 | 中国电建集团西北勘测设计研究院有限公司 | Aggregate alkali-inhibiting active material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109776054A (en) * | 2019-03-27 | 2019-05-21 | 陇东学院 | A kind of civil engineering foam concrete |
| CN110115240A (en) * | 2019-04-17 | 2019-08-13 | 平湖市渔业技术推广与海洋资源服务中心 | A kind of environmental projectization zero is given up the ecologic breeding pool |
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| CN112592120A (en) * | 2021-02-08 | 2021-04-02 | 梁水明 | Feldspar waste concrete and preparation method thereof |
| CN113279500A (en) * | 2021-05-31 | 2021-08-20 | 安徽华城兴建材科技有限公司 | Prevent splitting open dismantlement formula fiber cement board interior wall |
| CN114057449A (en) * | 2021-11-25 | 2022-02-18 | 深圳市中天元实业有限公司 | Light foam concrete |
| CN114057449B (en) * | 2021-11-25 | 2023-02-14 | 深圳市中天元实业有限公司 | Light foam concrete |
| CN117886528A (en) * | 2024-03-18 | 2024-04-16 | 中国电建集团西北勘测设计研究院有限公司 | Aggregate alkali-inhibiting active material and preparation method thereof |
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