CN112409016A - High-strength foam concrete and preparation method thereof - Google Patents
High-strength foam concrete and preparation method thereof Download PDFInfo
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- CN112409016A CN112409016A CN201910775541.4A CN201910775541A CN112409016A CN 112409016 A CN112409016 A CN 112409016A CN 201910775541 A CN201910775541 A CN 201910775541A CN 112409016 A CN112409016 A CN 112409016A
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- 239000011381 foam concrete Substances 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title abstract description 10
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims abstract description 48
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 39
- 238000002156 mixing Methods 0.000 claims abstract description 37
- 239000004568 cement Substances 0.000 claims abstract description 33
- -1 alkenyl sulfonate Chemical compound 0.000 claims abstract description 30
- 239000006260 foam Substances 0.000 claims abstract description 29
- 239000003381 stabilizer Substances 0.000 claims abstract description 28
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 25
- 229960000892 attapulgite Drugs 0.000 claims abstract description 19
- 239000000440 bentonite Substances 0.000 claims abstract description 19
- 229910000278 bentonite Inorganic materials 0.000 claims abstract description 19
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 19
- NJLLQSBAHIKGKF-UHFFFAOYSA-N dipotassium dioxido(oxo)titanium Chemical compound [K+].[K+].[O-][Ti]([O-])=O NJLLQSBAHIKGKF-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910052625 palygorskite Inorganic materials 0.000 claims abstract description 19
- 239000004088 foaming agent Substances 0.000 claims abstract description 18
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims abstract description 16
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000001768 carboxy methyl cellulose Substances 0.000 claims abstract description 16
- 239000012744 reinforcing agent Substances 0.000 claims abstract description 16
- 229920002545 silicone oil Polymers 0.000 claims abstract description 16
- 239000011734 sodium Substances 0.000 claims abstract description 16
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 16
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 claims abstract description 16
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 claims abstract description 16
- 239000004743 Polypropylene Substances 0.000 claims abstract description 14
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 14
- 239000002131 composite material Substances 0.000 claims abstract description 14
- 239000000835 fiber Substances 0.000 claims abstract description 14
- 239000010881 fly ash Substances 0.000 claims abstract description 14
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 14
- 239000011707 mineral Substances 0.000 claims abstract description 14
- 229920001155 polypropylene Polymers 0.000 claims abstract description 14
- 239000000843 powder Substances 0.000 claims abstract description 14
- 238000000498 ball milling Methods 0.000 claims abstract description 9
- 238000012986 modification Methods 0.000 claims abstract description 9
- 230000004048 modification Effects 0.000 claims abstract description 9
- 238000005187 foaming Methods 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 239000004576 sand Substances 0.000 claims abstract description 7
- 239000004575 stone Substances 0.000 claims abstract description 7
- 238000003756 stirring Methods 0.000 claims description 18
- 239000011398 Portland cement Substances 0.000 claims description 12
- 150000004645 aluminates Chemical class 0.000 claims description 12
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 9
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 7
- 229910052710 silicon Inorganic materials 0.000 claims description 7
- 239000010703 silicon Substances 0.000 claims description 7
- 238000012423 maintenance Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 238000002791 soaking Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims 3
- 238000010521 absorption reaction Methods 0.000 abstract description 4
- 239000004567 concrete Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000001117 sulphuric acid Substances 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
- C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention provides high-strength foam concrete and a preparation method thereof, wherein the raw materials comprise: alpha-sodium alkenyl sulfonate, sodium dodecyl sulfate, sodium carboxymethylcellulose, a foam stabilizer, silicone oil, citric acid, bentonite, attapulgite, potassium titanate whiskers, a silane coupling agent, cement, fly ash, mineral powder, polypropylene fibers, a water reducing agent and water. The preparation method comprises the steps of adding alpha-sodium alkenyl sulfonate and sodium dodecyl sulfate into water, heating and preserving heat, adding sodium carboxymethyl cellulose, a foam stabilizer, silicone oil and citric acid, dispersing and foaming to obtain the composite foaming agent; then mixing bentonite, attapulgite and potassium titanate whiskers, adding a silane coupling agent, and carrying out ball milling and mixing to obtain a modification reinforcing agent; the module is prepared by mixing cement, mineral powder, fly ash, broken stone, river sand and polypropylene fiber, and adding water, water reducing agent, composite foaming agent and modified reinforcing agent. The foam concrete has good compressive strength, water absorption and heat conductivity coefficient.
Description
Technical Field
The invention belongs to the technical field of building materials, and particularly relates to high-strength foam concrete and a preparation method thereof.
Background
The foam concrete (also called foaming cement and light concrete) is a novel building energy-saving material which is waste-utilizing, environment-friendly, energy-saving, low-cost and non-combustible, and is a concrete product which is formed by introducing air or gases such as nitrogen, carbon dioxide gas, oxygen and the like into concrete slurry in a chemical or physical mode, and reasonably curing and forming, contains a large amount of fine closed air holes and has considerable strength.
Along with the increasing of road traffic volume and traffic load in China, reconstruction and expansion projects of part of early-stage expressways and urban roads are continuously increased, and problems of land occupation removal, soft soil foundation treatment, frozen soil damage, pipe culvert external heat insulation construction and the like in construction have important influence on the quality and durability of road base layers and surface layers, and a plurality of key technologies are not effectively solved. As a novel road base material with good self-standing property, heat preservation, frost resistance, wide source and low price, the foam concrete has certain application and development in road construction in recent years, but has the problems of unstable foam, low strength, overlarge water absorption rate and the like.
Disclosure of Invention
The invention aims to provide high-strength foam concrete by preparing a high-efficiency foaming agent.
A high-strength foam concrete comprises the following raw materials in parts by weight: 0.5-1 part of alpha-sodium alkenyl sulfonate, 0.1-0.2 part of sodium dodecyl sulfate, 0.2-0.4 part of sodium carboxymethylcellulose, 0.3-0.5 part of foam stabilizer, 0.05-0.1 part of silicone oil, 0.02-0.05 part of citric acid, 2-7 parts of bentonite, 1-4 parts of attapulgite, 1-3 parts of potassium titanate whisker, 0.3-0.8 part of silane coupling agent, 200 parts of cement 100-containing materials, 20-40 parts of fly ash, 30-50 parts of mineral powder, 0.3-0.7 part of polypropylene fiber, 1-2 parts of water reducer and 50-100 parts of water.
Further, the foam stabilizer is an organic silicon foam stabilizer FM.
Further, the cement is a mixture of P.II 42.5-grade portland cement and CA-60 aluminate cement, and the mass ratio of the P.II 42.5-grade portland cement to the CA-60 aluminate cement is 8: 2.
further, the silane coupling agent is KH 550.
The preparation method of the foam concrete comprises the following steps:
step 1, adding alpha-sodium alkenyl sulfonate and sodium dodecyl sulfate into 100 times of water by weight, heating to 40-50 ℃, preserving heat for 30min, adding sodium carboxymethyl cellulose, a foam stabilizer, silicone oil and citric acid under the stirring condition, dispersing, and foaming under high pressure to obtain a composite foaming agent;
step 2, mixing bentonite, attapulgite and potassium titanate whiskers, adding a silane coupling agent, and carrying out ball milling and mixing to obtain a modification reinforcing agent;
and 3, adding cement, mineral powder, fly ash, broken stone, river sand and polypropylene fiber into a stirrer, stirring and mixing, adding water and a water reducing agent, stirring and mixing, adding the composite foaming agent obtained in the step 1 and the modified reinforcing agent obtained in the step 2, mixing, pouring into a mold, and performing standard maintenance for 24 hours to prepare a module.
Further, step 2 is to mix bentonite, attapulgite and potassium titanate whisker, then put them into 10% sulphuric acid solution to be soaked, then add silane coupling agent to be ball milled and mixed.
The invention adopts alpha-sodium alkenyl sulfonate, sodium dodecyl sulfate, sodium carboxymethylcellulose, organosilicon foam stabilizer FM, silicone oil and citric acid to prepare a mixed foaming agent with good stability; the prepared foam concrete has good compressive strength, water absorption and heat conductivity coefficient.
Detailed Description
Example 1
A high-strength foam concrete comprises the following raw materials in parts by weight: 0.5 part of alpha-sodium alkenyl sulfonate, 0.1 part of sodium dodecyl sulfate, 0.2 part of sodium carboxymethylcellulose, 0.3 part of foam stabilizer, 0.05 part of silicone oil, 0.02 part of citric acid, 2 parts of bentonite, 1 part of attapulgite, 1 part of potassium titanate whisker, 0.3 part of silane coupling agent, 100 parts of cement, 20 parts of fly ash, 30 parts of mineral powder, 0.3 part of polypropylene fiber, 1 part of water reducer and 50 parts of water.
The foam stabilizer is an organic silicon foam stabilizer FM.
The cement is a mixture of P & II 42.5-grade portland cement and CA-60 aluminate cement, and the mass ratio of the P & II 42.5-grade portland cement to the CA-60 aluminate cement is 8: 2.
the silane coupling agent is KH 550.
The preparation method of the foam concrete comprises the following steps:
step 1, adding alpha-sodium alkenyl sulfonate and sodium dodecyl sulfate into 100 times of water by weight, heating to 40-50 ℃, preserving heat for 30min, adding sodium carboxymethyl cellulose, a foam stabilizer, silicone oil and citric acid under the stirring condition, dispersing, and foaming under high pressure to obtain a composite foaming agent;
step 2, mixing bentonite, attapulgite and potassium titanate whiskers, adding a silane coupling agent, and carrying out ball milling and mixing to obtain a modification reinforcing agent;
and 3, adding cement, mineral powder, fly ash, broken stone, river sand and polypropylene fiber into a stirrer, stirring and mixing, adding water and a water reducing agent, stirring and mixing, adding the composite foaming agent obtained in the step 1 and the modified reinforcing agent obtained in the step 2, mixing, pouring into a mold, and performing standard maintenance for 24 hours to prepare a module.
Example 2
A high-strength foam concrete comprises the following raw materials in parts by weight: 0.7 part of alpha-sodium alkenyl sulfonate, 0.15 part of sodium dodecyl sulfate, 0.3 part of sodium carboxymethylcellulose, 0.4 part of foam stabilizer, 0.07 part of silicone oil, 0.04 part of citric acid, 4 parts of bentonite, 3 parts of attapulgite, 2 parts of potassium titanate whisker, 0.6 part of silane coupling agent, 150 parts of cement, 30 parts of fly ash, 40 parts of mineral powder, 0.5 part of polypropylene fiber, 1.5 parts of water reducer and 80 parts of water.
The foam stabilizer is an organic silicon foam stabilizer FM.
The cement is a mixture of P & II 42.5-grade portland cement and CA-60 aluminate cement, and the mass ratio of the P & II 42.5-grade portland cement to the CA-60 aluminate cement is 8: 2.
the silane coupling agent is KH 550.
The preparation method of the foam concrete comprises the following steps:
step 1, adding alpha-sodium alkenyl sulfonate and sodium dodecyl sulfate into 100 times of water by weight, heating to 40-50 ℃, preserving heat for 30min, adding sodium carboxymethyl cellulose, a foam stabilizer, silicone oil and citric acid under the stirring condition, dispersing, and foaming under high pressure to obtain a composite foaming agent;
step 2, mixing bentonite, attapulgite and potassium titanate whiskers, adding a silane coupling agent, and carrying out ball milling and mixing to obtain a modification reinforcing agent;
and 3, adding cement, mineral powder, fly ash, broken stone, river sand and polypropylene fiber into a stirrer, stirring and mixing, adding water and a water reducing agent, stirring and mixing, adding the composite foaming agent obtained in the step 1 and the modified reinforcing agent obtained in the step 2, mixing, pouring into a mold, and performing standard maintenance for 24 hours to prepare a module.
Example 3
A high-strength foam concrete comprises the following raw materials in parts by weight: 1 part of alpha-sodium alkenyl sulfonate, 0.2 part of sodium dodecyl sulfate, 0.4 part of sodium carboxymethylcellulose, 0.5 part of foam stabilizer, 0.1 part of silicone oil, 0.05 part of citric acid, 7 parts of bentonite, 4 parts of attapulgite, 3 parts of potassium titanate whisker, 0.8 part of silane coupling agent, 200 parts of cement, 40 parts of fly ash, 50 parts of mineral powder, 0.7 part of polypropylene fiber, 2 parts of water reducer and 100 parts of water.
The foam stabilizer is an organic silicon foam stabilizer FM.
The cement is a mixture of P & II 42.5-grade portland cement and CA-60 aluminate cement, and the mass ratio of the P & II 42.5-grade portland cement to the CA-60 aluminate cement is 8: 2.
the silane coupling agent is KH 550.
The preparation method of the foam concrete comprises the following steps:
step 1, adding alpha-sodium alkenyl sulfonate and sodium dodecyl sulfate into 100 times of water by weight, heating to 40-50 ℃, preserving heat for 30min, adding sodium carboxymethyl cellulose, a foam stabilizer, silicone oil and citric acid under the stirring condition, dispersing, and foaming under high pressure to obtain a composite foaming agent;
step 2, mixing bentonite, attapulgite and potassium titanate whiskers, adding a silane coupling agent, and carrying out ball milling and mixing to obtain a modification reinforcing agent;
and 3, adding cement, mineral powder, fly ash, broken stone, river sand and polypropylene fiber into a stirrer, stirring and mixing, adding water and a water reducing agent, stirring and mixing, adding the composite foaming agent obtained in the step 1 and the modified reinforcing agent obtained in the step 2, mixing, pouring into a mold, and performing standard maintenance for 24 hours to prepare a module.
Example 4
This example differs from example 3 in that: and 2, mixing bentonite, attapulgite and potassium titanate whiskers, soaking in a 10% sulfuric acid solution, adding a silane coupling agent, and performing ball milling and mixing.
A high-strength foam concrete comprises the following raw materials in parts by weight: 1 part of alpha-sodium alkenyl sulfonate, 0.2 part of sodium dodecyl sulfate, 0.4 part of sodium carboxymethylcellulose, 0.5 part of foam stabilizer, 0.1 part of silicone oil, 0.05 part of citric acid, 7 parts of bentonite, 4 parts of attapulgite, 3 parts of potassium titanate whisker, 0.8 part of silane coupling agent, 200 parts of cement, 40 parts of fly ash, 50 parts of mineral powder, 0.7 part of polypropylene fiber, 2 parts of water reducer and 100 parts of water.
The foam stabilizer is an organic silicon foam stabilizer FM.
The cement is a mixture of P & II 42.5-grade portland cement and CA-60 aluminate cement, and the mass ratio of the P & II 42.5-grade portland cement to the CA-60 aluminate cement is 8: 2.
the silane coupling agent is KH 550.
The preparation method of the foam concrete comprises the following steps:
step 1, adding alpha-sodium alkenyl sulfonate and sodium dodecyl sulfate into 100 times of water by weight, heating to 40-50 ℃, preserving heat for 30min, adding sodium carboxymethyl cellulose, a foam stabilizer, silicone oil and citric acid under the stirring condition, dispersing, and foaming under high pressure to obtain a composite foaming agent;
step 2, mixing bentonite, attapulgite and potassium titanate whiskers, then placing the mixture into a 10% sulfuric acid solution for soaking for 30-50min, taking out the mixture, then adding a silane coupling agent, and carrying out ball milling and mixing to obtain a modification reinforcing agent;
and 3, adding cement, mineral powder, fly ash, broken stone, river sand and polypropylene fiber into a stirrer, stirring and mixing, adding water and a water reducing agent, stirring and mixing, adding the composite foaming agent obtained in the step 1 and the modified reinforcing agent obtained in the step 2, mixing, pouring into a mold, and performing standard maintenance for 24 hours to prepare a module.
The foam concrete obtained in examples 1 to 4 was subjected to a performance test, and the results were as follows:
the invention adopts alpha-sodium alkenyl sulfonate, sodium dodecyl sulfate, sodium carboxymethylcellulose, an organic silicon foam stabilizer FM, silicone oil and citric acid to prepare a mixed foaming agent, the mixed foaming agent has 27.5mL of bleeding amount in 1h and 1.9mm of settling distance in 1h, and has good stability; the prepared foam concrete has good compressive strength, water absorption and heat conductivity coefficient. The mixture of bentonite, attapulgite and potassium titanate whiskers is used as a reinforcing agent, and internal gaps can be filled, so that the later strength of the concrete is improved; the surface modification is carried out by adopting the silane coupling agent, so that the binding power between each component in the reinforcing agent and concrete can be improved, the filling effect is promoted, the bentonite, the attapulgite and the potassium titanate whisker are firstly placed in a sulfuric acid solution for soaking, and then the surface modification is carried out by adopting the silane coupling agent, so that the structure and distribution of air holes can be improved, the uniformity is improved, and the strength is further improved.
Claims (6)
1. A high-strength foam concrete is characterized in that: the raw materials comprise the following components in parts by weight: 0.5-1 part of alpha-sodium alkenyl sulfonate, 0.1-0.2 part of sodium dodecyl sulfate, 0.2-0.4 part of sodium carboxymethylcellulose, 0.3-0.5 part of foam stabilizer, 0.05-0.1 part of silicone oil, 0.02-0.05 part of citric acid, 2-7 parts of bentonite, 1-4 parts of attapulgite, 1-3 parts of potassium titanate whisker, 0.3-0.8 part of silane coupling agent, 200 parts of cement 100-containing materials, 20-40 parts of fly ash, 30-50 parts of mineral powder, 0.3-0.7 part of polypropylene fiber, 1-2 parts of water reducer and 50-100 parts of water.
2. The high stability foamed concrete according to claim 1, wherein: the foam stabilizer is an organic silicon foam stabilizer FM.
3. The high stability foamed concrete according to claim 1, wherein: the cement is a mixture of P & II 42.5-grade portland cement and CA-60 aluminate cement, and the mass ratio of the P & II 42.5-grade portland cement to the CA-60 aluminate cement is 8: 2.
4. the high stability foamed concrete according to claim 1, wherein: the silane coupling agent is KH 550.
5. The method of producing a foamed concrete according to claim 1, wherein: the method comprises the following steps:
step 1, adding alpha-sodium alkenyl sulfonate and sodium dodecyl sulfate into 100 times of water by weight, heating to 40-50 ℃, preserving heat for 30min, adding sodium carboxymethyl cellulose, a foam stabilizer, silicone oil and citric acid under the stirring condition, dispersing, and foaming under high pressure to obtain a composite foaming agent;
step 2, mixing bentonite, attapulgite and potassium titanate whiskers, adding a silane coupling agent, and carrying out ball milling and mixing to obtain a modification reinforcing agent;
and 3, adding cement, mineral powder, fly ash, broken stone, river sand and polypropylene fiber into a stirrer, stirring and mixing, adding water and a water reducing agent, stirring and mixing, adding the composite foaming agent obtained in the step 1 and the modified reinforcing agent obtained in the step 2, mixing, pouring into a mold, and performing standard maintenance for 24 hours to prepare a module.
6. The method of producing a foamed concrete according to claim 5, characterized in that: and 2, mixing bentonite, attapulgite and potassium titanate whiskers, soaking in a 10% sulfuric acid solution, adding a silane coupling agent, and performing ball milling and mixing.
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| CN201910775541.4A CN112409016A (en) | 2019-08-21 | 2019-08-21 | High-strength foam concrete and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114561846A (en) * | 2022-03-01 | 2022-05-31 | 江西省交通工程集团建设有限公司 | Construction method of foamed asphalt warm-mix recycled pavement |
| TWI793716B (en) * | 2021-08-12 | 2023-02-21 | 高啓峯 | Durable and high temperature resistant plate body |
| CN116332581A (en) * | 2023-04-19 | 2023-06-27 | 安徽省公路桥梁工程有限公司 | Light foam soil and preparation method thereof |
| CN117819926A (en) * | 2024-03-05 | 2024-04-05 | 石家庄铁道大学 | Potassium titanate whisker reinforced ultra-high performance recycled concrete and preparation method thereof |
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| CN114561846A (en) * | 2022-03-01 | 2022-05-31 | 江西省交通工程集团建设有限公司 | Construction method of foamed asphalt warm-mix recycled pavement |
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