CN116120086A - Anti-cracking mortar raw material for aerated building blocks and preparation method of anti-cracking mortar - Google Patents
Anti-cracking mortar raw material for aerated building blocks and preparation method of anti-cracking mortar Download PDFInfo
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- CN116120086A CN116120086A CN202211619165.8A CN202211619165A CN116120086A CN 116120086 A CN116120086 A CN 116120086A CN 202211619165 A CN202211619165 A CN 202211619165A CN 116120086 A CN116120086 A CN 116120086A
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- 239000004570 mortar (masonry) Substances 0.000 title claims abstract description 38
- 239000002994 raw material Substances 0.000 title claims abstract description 37
- 238000005336 cracking Methods 0.000 title claims abstract description 30
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000000835 fiber Substances 0.000 claims abstract description 61
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000000203 mixture Substances 0.000 claims abstract description 25
- 239000004576 sand Substances 0.000 claims abstract description 22
- 239000004744 fabric Substances 0.000 claims abstract description 17
- 238000002156 mixing Methods 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 13
- 239000003381 stabilizer Substances 0.000 claims abstract description 13
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 12
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 claims abstract description 12
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 10
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 10
- 239000004568 cement Substances 0.000 claims abstract description 10
- 239000004571 lime Substances 0.000 claims abstract description 10
- 239000010440 gypsum Substances 0.000 claims abstract description 9
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 9
- 239000000843 powder Substances 0.000 claims abstract description 9
- 238000002791 soaking Methods 0.000 claims abstract description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims abstract description 6
- 239000011259 mixed solution Substances 0.000 claims abstract description 6
- 239000011592 zinc chloride Substances 0.000 claims abstract description 6
- 235000005074 zinc chloride Nutrition 0.000 claims abstract description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 36
- 241000196324 Embryophyta Species 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 14
- 238000003756 stirring Methods 0.000 claims description 14
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 8
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 8
- 241001330002 Bambuseae Species 0.000 claims description 8
- 235000013162 Cocos nucifera Nutrition 0.000 claims description 8
- 244000060011 Cocos nucifera Species 0.000 claims description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 8
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 8
- 239000011425 bamboo Substances 0.000 claims description 8
- 239000006185 dispersion Substances 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 8
- 238000007873 sieving Methods 0.000 claims description 8
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 4
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 229920002401 polyacrylamide Polymers 0.000 claims description 4
- 229920000642 polymer Polymers 0.000 claims description 4
- -1 polyphenol compound Chemical class 0.000 claims description 4
- 235000013824 polyphenols Nutrition 0.000 claims description 4
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 4
- 238000010298 pulverizing process Methods 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims description 4
- 238000000967 suction filtration Methods 0.000 claims description 4
- 238000001291 vacuum drying Methods 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims description 4
- 230000004048 modification Effects 0.000 claims description 3
- 238000012986 modification Methods 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Images
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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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 discloses an anti-cracking mortar raw material for an aerated block and a preparation method of the anti-cracking mortar, and relates to the technical field of aerated blocks, wherein the formula of the anti-cracking mortar raw material comprises the following components in parts by weight: fine sand: 60-70 parts of cement: 10-15 parts of lime: 10-15 parts of gypsum powder: 10-15 parts of grid fiber cloth: 3-10 parts of plant fiber mixing materials: 2-5 parts; air-entraining agent: 1-3 parts of stabilizer: 3-10 parts of water: 100-120 parts. According to the invention, the grid fibers are spirally arranged in the aerated block anti-cracking mortar in the aerated block mold, so that the obtained aerated block anti-cracking mortar has higher toughness, can be suitable for high-strength wall construction, and can be greatly improved in finished product strength by adding the plant fiber mixture into the aerated block anti-cracking mortar, soaking the plant fiber mixture in the mixed solution of zinc dichloride and phosphoric acid and absolute ethyl alcohol.
Description
Technical Field
The invention relates to the technical field of aerated building blocks, in particular to an anti-cracking mortar raw material for an aerated building block and a preparation method of the anti-cracking mortar.
Background
The aerated concrete block is a porous silicate product which is prepared by taking siliceous materials (sand, fly ash, siliceous tailings and the like) and calcareous materials (lime, cement) as main raw materials, adding an air-entraining agent (aluminum powder), adding water, stirring, forming pores by chemical reaction, casting, precuring, cutting, autoclaved curing and other technical processes. The aerated building block is a novel wall material, is used as a building filling wall, and has the functions of sound insulation, heat preservation, fire prevention and the like. The existing aerated building block has limited structural strength, is difficult to be suitable for buildings with high strength requirements, has insufficient activity of an air generating agent in the existing aerated building block, has high heating requirements and consumes long time.
Disclosure of Invention
The invention mainly aims to provide an anti-cracking mortar raw material for an aerated building block and a preparation method of the anti-cracking mortar, which can effectively solve the problems in the background technology.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the formula of the anti-cracking mortar raw material for the aerated building block comprises the following components in parts by weight: fine sand: 60-70 parts of cement: 10-15 parts of lime: 10-15 parts of gypsum powder: 10-15 parts of grid fiber cloth: 3-10 parts of plant fiber mixing materials: 2-5 parts; air-entraining agent: 1-3 parts of stabilizer: 3-10 parts of water: 100-120 parts.
Preferably, the fine sand is crushed and sieved to 60-80 meshes.
Preferably, the plant fiber mixture comprises bamboo fibers and coconut shells.
Preferably, the grid fiber cloth is woven by glass grid fibers, and the grid fiber cloth is 20-30 meshes.
Preferably, the gas generating agent is modified aluminum powder.
Preferably, the stabilizer comprises at least one of polyacrylamide, polyvinyl alcohol and CaCl 2.
Preferably, the pH of the water is from 5 to 6.
A method for preparing aerated block anti-cracking mortar, the method comprising:
in the first step, raw materials are prepared, all materials are weighed in proportion and held in separate containers.
Secondly, pretreating raw materials, putting fine sand into a 60-80-mesh screen for sieving, re-crushing the fine sand with larger particles, sieving, modifying the activated aluminum powder to prepare a plant fiber mixture, and adding a proper amount of hydrochloric acid into water to adjust the pH value of the water to 5-6.
Thirdly, primarily mixing, namely adding the treated fine sand, the modified aluminum powder and the plant fiber mixture, cement, lime, gypsum powder and a stabilizer into stirring equipment for stirring.
And fifthly, secondary mixing, and continuously stirring after fully mixing by adding water to obtain a mixed raw material.
Fourthly, preparing a die, arranging the grid fibers in the aerated block die in a spiral mode, and shaping the grid fiber cloth by using a fixing support.
And sixthly, pouring the mixed raw materials into an aerated block mold slowly, taking out the fixed support after pouring, then placing the fixed support on a vibration platform for high-frequency vibration, and solidifying to obtain an aerated block primary product.
Seventh, heating to make holes, and putting the primary aerated block product into a special high-temperature furnace to heat for a certain time to obtain an aerated block product.
Preferably, the method for modifying the activated aluminum powder comprises the following steps:
a. and (3) ultrasonically dispersing the aluminum powder in water at normal temperature and normal pressure to obtain an aluminum powder dispersion liquid.
b. Sequentially adding the polyphenol compound and the nitrogenous polymer compound into the aluminum powder dispersion liquid.
c. Then the reaction was stirred at 90℃for 1h.
d. And carrying out suction filtration, washing and vacuum drying to obtain the modified aluminum powder.
Preferably, the preparation method of the plant fiber mixture comprises the following steps:
and S1, conveying the mature bamboo and coconut shells into a pulverizer for pulverizing treatment.
S2, putting the mixed crushed aggregates into a mixed solution of zinc dichloride and phosphoric acid, soaking for 1h, and then fishing out and draining.
And S3, adding the mixed crushed aggregates into absolute ethyl alcohol, soaking for 1h, and then fishing out and draining.
And S3, finally, drying the mixed crushed aggregates to obtain the plant fiber mixture.
Compared with the prior art, the invention has the following beneficial effects:
1. the grid fibers are spirally arranged in the aerated block anti-cracking mortar, so that the aerated block anti-cracking mortar obtained in the later stage has higher strength and toughness, and can be suitable for building high-strength walls.
2. The active aluminum powder in the gas generating agent is subjected to modification treatment, so that the obtained modified aluminum powder has higher activity, the temperature required by post-heating can be reduced, the heating time in a heating furnace is shortened, and the production efficiency is improved.
3. The plant fiber mixture is added into the aerated block anti-cracking mortar, and is soaked in the mixed solution of zinc dichloride and phosphoric acid and absolute ethyl alcohol, so that the toughness and purity of the obtained plant fiber mixture are higher, and the strength of the aerated block finished product can be greatly improved.
Drawings
FIG. 1 is a flow chart of a preparation method for aerated block anti-cracking mortar of the invention;
FIG. 2 is a flow chart of a method for modifying activated aluminum powder in a preparation method of aerated block anti-cracking mortar;
fig. 3 is a flow chart of a method for preparing a plant fiber mixture in the preparation method of the aerated block anti-cracking mortar.
Detailed Description
The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
Embodiment one:
as shown in fig. 1-3, an anti-cracking mortar raw material for an aerated block comprises the following components in parts by weight: fine sand: 60-70 parts of cement: 10-15 parts of lime: 10-15 parts of gypsum powder: 10-15 parts of grid fiber cloth: 3-10 parts of plant fiber mixing materials: 2-5 parts; air-entraining agent: 1-3 parts of stabilizer: 3-10 parts of water: 100-120 parts.
In this example, the fine sand was crushed and sieved through 60 mesh.
In this embodiment, the plant fiber mixture includes bamboo fibers and coconut shells.
In this embodiment, the mesh fiber cloth is woven from glass mesh fibers, and the mesh fiber cloth is 20 mesh.
In this embodiment, the gas generating agent is modified aluminum powder.
In this embodiment, the stabilizer includes at least one of polyacrylamide, polyvinyl alcohol, and CaCl 2.
In this example, the pH of the water was 5.
A method for preparing aerated block anti-cracking mortar, the method comprising:
in the first step, raw materials are prepared, all materials are weighed in proportion and held in separate containers.
Secondly, pretreating raw materials, putting fine sand into a 60-mesh screen for sieving, re-crushing the fine sand with larger particles, sieving, modifying the activated aluminum powder to prepare a plant fiber mixture, and adding a proper amount of hydrochloric acid into water to adjust the pH value of the water to be 5.
Thirdly, primarily mixing, namely adding the treated fine sand, the modified aluminum powder and the plant fiber mixture, cement, lime, gypsum powder and a stabilizer into stirring equipment for stirring.
And fifthly, secondary mixing, and continuously stirring after fully mixing by adding water to obtain a mixed raw material.
Fourthly, preparing a die, arranging the grid fibers in the aerated block die in a spiral mode, and shaping the grid fiber cloth by using a fixing support.
And sixthly, pouring the mixed raw materials into an aerated block mold slowly, taking out the fixed support after pouring, then placing the fixed support on a vibration platform for high-frequency vibration, and solidifying to obtain an aerated block primary product.
Seventh, heating to make holes, and putting the primary aerated block product into a special high-temperature furnace to heat for a certain time to obtain an aerated block product.
In this embodiment, the method for modifying the activated aluminum powder includes the following steps:
a. and (3) ultrasonically dispersing the aluminum powder in water at normal temperature and normal pressure to obtain an aluminum powder dispersion liquid.
b. Sequentially adding the polyphenol compound and the nitrogenous polymer compound into the aluminum powder dispersion liquid.
c. Then the reaction was stirred at 90℃for 1h.
d. And carrying out suction filtration, washing and vacuum drying to obtain the modified aluminum powder.
In this embodiment, the preparation method of the plant fiber mixture includes the following steps:
and S1, conveying the mature bamboo and coconut shells into a pulverizer for pulverizing treatment.
S2, putting the mixed crushed aggregates into a mixed solution of zinc dichloride and phosphoric acid, soaking for 1h, and then fishing out and draining.
And S3, adding the mixed crushed aggregates into absolute ethyl alcohol, soaking for 1h, and then fishing out and draining.
And S3, finally, drying the mixed crushed aggregates to obtain the plant fiber mixture.
The above is an example of a 20 mesh scrim.
Embodiment two:
as shown in fig. 1-3, an anti-cracking mortar raw material for an aerated block comprises the following components in parts by weight: fine sand: 60-70 parts of cement: 10-15 parts of lime: 10-15 parts of gypsum powder: 10-15 parts of grid fiber cloth: 3-10 parts of plant fiber mixing materials: 2-5 parts; air-entraining agent: 1-3 parts of stabilizer: 3-10 parts of water: 100-120 parts.
In this example, the fine sand was crushed and sieved to 80 mesh.
In this embodiment, the plant fiber mixture includes bamboo fibers and coconut shells.
In this embodiment, the mesh fiber cloth is woven from glass mesh fibers, and the mesh fiber cloth is 30 mesh.
In this embodiment, the gas generating agent is modified aluminum powder.
In this embodiment, the stabilizer includes at least one of polyacrylamide, polyvinyl alcohol, and CaCl 2.
In this example, the pH of the water was 6.
A method for preparing aerated block anti-cracking mortar, the method comprising:
in the first step, raw materials are prepared, all materials are weighed in proportion and held in separate containers.
Secondly, pretreating raw materials, putting fine sand into a 80-mesh screen for sieving, re-crushing the fine sand with larger particles, sieving, modifying the activated aluminum powder to prepare a plant fiber mixture, and adding a proper amount of hydrochloric acid into water to adjust the pH value of the water to 6.
Thirdly, primarily mixing, namely adding the treated fine sand, the modified aluminum powder and the plant fiber mixture, cement, lime, gypsum powder and a stabilizer into stirring equipment for stirring.
And fifthly, secondary mixing, and continuously stirring after fully mixing by adding water to obtain a mixed raw material.
Fourthly, preparing a die, arranging the grid fibers in the aerated block die in a spiral mode, and shaping the grid fiber cloth by using a fixing support.
And sixthly, pouring the mixed raw materials into an aerated block mold slowly, taking out the fixed support after pouring, then placing the fixed support on a vibration platform for high-frequency vibration, and solidifying to obtain an aerated block primary product.
Seventh, heating to make holes, and putting the primary aerated block product into a special high-temperature furnace to heat for a certain time to obtain an aerated block product.
In this embodiment, the method for modifying the activated aluminum powder includes the following steps:
a. and (3) ultrasonically dispersing the aluminum powder in water at normal temperature and normal pressure to obtain an aluminum powder dispersion liquid.
b. Sequentially adding the polyphenol compound and the nitrogenous polymer compound into the aluminum powder dispersion liquid.
c. Then the reaction was stirred at 90℃for 1h.
d. And carrying out suction filtration, washing and vacuum drying to obtain the modified aluminum powder.
In this embodiment, the preparation method of the plant fiber mixture includes the following steps:
and S1, conveying the mature bamboo and coconut shells into a pulverizer for pulverizing treatment.
S2, putting the mixed crushed aggregates into a mixed solution of zinc dichloride and phosphoric acid, soaking for 1h, and then fishing out and draining.
And S3, adding the mixed crushed aggregates into absolute ethyl alcohol, soaking for 1h, and then fishing out and draining.
And S3, finally, drying the mixed crushed aggregates to obtain the plant fiber mixture.
The above is an example of a 30 mesh scrim.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. An anti-cracking mortar raw material for aerated building blocks is characterized in that: the formula of the anti-cracking mortar comprises the following raw materials in parts by weight: fine sand: 60-70 parts of cement: 10-15 parts of lime: 10-15 parts of gypsum powder: 10-15 parts of grid fiber cloth: 3-10 parts of plant fiber mixing materials: 2-5 parts; air-entraining agent: 1-3 parts of stabilizer: 3-10 parts of water: 100-120 parts.
2. The anti-crack mortar raw material for aerated blocks according to claim 1, wherein: the fine sand is crushed and sieved to 60-80 meshes.
3. The anti-crack mortar raw material for aerated blocks according to claim 1, wherein: the plant fiber mixture comprises bamboo fibers and coconut shells.
4. The anti-crack mortar raw material for aerated blocks according to claim 1, wherein: the grid fiber cloth is woven by glass grid fibers, and the grid fiber cloth is 20-30 meshes.
5. The anti-crack mortar raw material for aerated blocks according to claim 1, wherein: the air generating agent is modified aluminum powder.
6. The anti-crack mortar raw material for aerated blocks according to claim 1, wherein: the stabilizer comprises at least one of polyacrylamide, polyvinyl alcohol and CaCl 2.
7. The anti-crack mortar raw material for aerated blocks according to claim 1, wherein: the pH of the water is 5-6.
8. A method for preparing an anti-cracking mortar for aerated building blocks, which is used for preparing the anti-cracking mortar raw material for aerated building blocks as claimed in any one of claims 1 to 7, and is characterized in that: the preparation method comprises the following steps:
firstly, preparing raw materials, weighing all materials in proportion and placing the materials in a single container;
secondly, pretreating raw materials, putting fine sand into a 60-80-mesh screen for sieving, re-crushing the fine sand with larger particles, sieving, modifying active aluminum powder to prepare a plant fiber mixture, and adding a proper amount of hydrochloric acid into water to adjust the pH value of the water to 5-6;
thirdly, primarily mixing, namely adding the treated fine sand, the modified aluminum powder and the plant fiber mixture, cement, lime, gypsum powder and a stabilizer into stirring equipment for stirring;
fifthly, secondary mixing, and continuously stirring after fully mixing by adding water to obtain a mixed raw material;
fourthly, preparing a die, arranging grid fibers in the aerated block die in a spiral manner, and shaping the grid fiber cloth by using a fixed bracket;
pouring the mixed raw materials into an aerated block mold slowly, taking out the fixed support after pouring, and then placing the fixed support on a vibration platform for high-frequency vibration, and solidifying to obtain an aerated block primary product;
seventh, heating to make holes, and putting the primary aerated block product into a special high-temperature furnace to heat for a certain time to obtain an aerated block product.
9. The anti-crack mortar raw material for aerated blocks according to claim 8, wherein: the modification treatment method for the activated aluminum powder comprises the following steps:
a. ultrasonically dispersing aluminum powder in water at normal temperature and normal pressure to obtain aluminum powder dispersion liquid;
b. sequentially adding a polyphenol compound and a nitrogenous polymer compound into the aluminum powder dispersion liquid;
c. then stirring and reacting for 1h at 90 ℃;
d. and carrying out suction filtration, washing and vacuum drying to obtain the modified aluminum powder.
10. The anti-crack mortar raw material for aerated blocks according to claim 8, wherein: the preparation method of the plant fiber mixture comprises the following steps:
s1, conveying mature bamboo and coconut shells into a pulverizer for pulverizing treatment;
s2, putting the mixed crushed aggregates into a mixed solution of zinc dichloride and phosphoric acid, soaking for 1h, and then fishing out and draining;
s3, adding the mixed crushed aggregates into absolute ethyl alcohol, soaking for 1h, and then fishing out and draining;
and S3, finally, drying the mixed crushed aggregates to obtain the plant fiber mixture.
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| CN111500091A (en) * | 2020-05-11 | 2020-08-07 | 中国科学院兰州化学物理研究所 | Preparation method of high-activity high-stability modified aluminum powder of heat-resistant liquid |
| CN112159187A (en) * | 2020-09-04 | 2021-01-01 | 上海阜阜建材有限公司 | Environment-friendly desulfurized gypsum aerated building block and production process thereof |
| CN113293948A (en) * | 2021-04-22 | 2021-08-24 | 徐州工业职业技术学院 | Straw fiber reinforced fireproof decorative plate and preparation method thereof |
| CN113233859A (en) * | 2021-05-31 | 2021-08-10 | 福建农林大学 | Modified bamboo fiber reinforced aerated concrete and preparation method thereof |
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