CN109020425B - Self-heat-insulation anti-cracking mortar for ferromagnetic building formwork net wall and preparation method thereof - Google Patents
Self-heat-insulation anti-cracking mortar for ferromagnetic building formwork net wall and preparation method thereof Download PDFInfo
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- CN109020425B CN109020425B CN201811010141.6A CN201811010141A CN109020425B CN 109020425 B CN109020425 B CN 109020425B CN 201811010141 A CN201811010141 A CN 201811010141A CN 109020425 B CN109020425 B CN 109020425B
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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
- C04B28/08—Slag 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
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/34—Non-shrinking or non-cracking materials
- C04B2111/343—Crack resistant materials
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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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- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses self-insulation anti-cracking mortar for a ferromagnetic building formwork net wall and a preparation method thereof, and relates to the technical field of building materials. The self-insulation anti-cracking mortar comprises the following components in percentage by weight: 30-55% of a cementing material, 5-25% of magnetic mineral powder, 0.5-3% of vermiculite powder, 4-20% of hollow glass beads, 15-35% of modified quartz sand, 0.1-1.2% of ecological fiber and 0.2-1.5% of redispersible latex powder, wherein the total amount is 100%; the cementing material, the magnetic mineral powder, the ecological fiber and the redispersible latex powder are powder materials, and the modified quartz sand, the hollow glass beads and the vermiculite powder are fine aggregates; the additive is water, and the mass of the additive is 25-90% of the mass of the powder. The self-insulation anti-cracking mortar for the ferromagnetic building formwork net wall has the advantages of high cohesive force, self insulation, good impermeability, strong toughness, strong waterproof and anti-cracking performance, sound absorption, good workability, weather resistance, fire resistance, corrosion resistance, good construction performance and the like.
Description
Technical Field
The invention relates to the technical field of building materials, in particular to self-insulation anti-cracking mortar for a ferromagnetic building formwork net wall and a preparation method thereof.
Background
The building formwork net wall is a novel building wall structure, the steel plate net used by the building formwork net wall is produced into pieces directly according to the height requirement of the wall in a factory, and concrete can be poured after on-site assembly, so that the building formwork net wall is widely applied to multi-storey and small high-rise buildings. After the wall body is poured with concrete, the steel plate net does not need to be dismantled and is abandoned in the wall body, so that a lot of workload is reduced, and meanwhile, the strength of the wall body is increased. When in construction, cement mortar is required to be coated on the outer side of the steel plate mesh, and the thickness of the mortar layer on the outer side of the steel plate mesh is required to be not less than 20 mm, so that the effects of decorating and protecting the concrete of the formwork mesh are achieved; however, after the common cement mortar is coated on the outer side of the steel plate mesh, the steel plate mesh and the mortar are non-homogeneous base materials, so that the cracking phenomenon is easy to occur; and the reinforcing ribs of the steel plate net are rusted, and the bent hook lacing wires are rusted and broken, so that the compactness, impermeability and adhesive property of cement mortar are required to be improved, the heat insulation property and durability of mortar are enhanced, the corrosion resistance and adhesive property of the mortar to the steel plate net are improved, and the overall quality of a wall body is ensured.
Disclosure of Invention
In order to solve the existing problems, the invention provides self-insulation anti-cracking mortar for a ferromagnetic building formwork net wall and a preparation method thereof.
In order to achieve the above object, the present invention adopts the following aspects,
the invention aims to provide self-insulation anti-cracking mortar for a ferromagnetic building formwork net wall, which is characterized by comprising the following components in percentage by weight: 30-55% of a cementing material, 5-25% of magnetic mineral powder, 0.5-3% of vermiculite powder, 4-20% of hollow glass beads, 15-35% of modified quartz sand, 0.1-1.2% of ecological fiber and 0.2-1.5% of redispersible latex powder, wherein the total amount is 100%; the cementing material, the magnetic mineral powder, the ecological fiber and the redispersible latex powder are powder materials, and the modified quartz sand, the hollow glass beads and the vermiculite powder are fine aggregates; the additive is water, and the mass of the additive is 25-90% of the mass of the powder.
Preferably, the cementing material consists of 40-70% by mass of cement and 30-60% by mass of industrial waste residue micro powder; the cement is at least one of ordinary portland cement and pozzolan cement with the mark number of 42.5MPa or above; the industrial waste residue micro powder is at least one of blast furnace slag micro powder, coal gangue waste residue micro powder, iron tailing slag micro powder and lead-zinc tailing slag micro powder.
Preferably, the magnetic mineral powder is formed by mixing ferromagnetic powder and slag micro powder according to a mass ratio: the slag micro powder is 1 (8-15); the particle size of the magnetic mineral powder is 0.15-0.6 mm; the ferromagnetic powder is composed of 60% of metal material and 40% of non-metal material, wherein the metal material is at least one of iron and nickel, and the non-metal material is at least one of boron, carbon and silicon.
Preferably, the particle size of the vermiculite powder is 0.3-0.8 mm, and the density is 50-150 kg/m3。
Preferably, the particle size of the hollow glass bead is 5-150 μm.
Preferably, the modified quartz sand is prepared by mixing a modifier and quartz sand according to a mass ratio, wherein the modifier is: the quartz sand is 1 (12-25); the modifier is one of cocamidopropyl betaine and fatty alcohol-polyoxyethylene ether sodium sulfate.
Preferably, the ecological fiber is prepared by crushing and drying high-fiber raw materials, the length of the ecological fiber is 0.3-2 mm, and the density of the ecological fiber is 150-550 kg/m3(ii) a The high fiber raw material is one of straw stalk, wheat stalk, corn stalk, bark and tree trunk.
Preferably, the redispersible latex powder is at least one of mixture a and mixture B; the mixture A is formed by mixing acrylic ester and styrene copolymerized rubber powder; the mixture B is formed by mixing butadiene copolymerized rubber powder and a material C, wherein the material C is at least one of vinyl acetate homopolymerized rubber powder and styrene.
The invention also aims to provide a preparation method of the self-insulation anti-cracking mortar for the ferromagnetic building formwork net wall, which comprises the following steps:
weighing 30-55% of a cementing material, 5-25% of magnetic mineral powder, 0.5-3% of vermiculite powder, 4-20% of hollow glass beads, 15-35% of modified quartz sand, 0.1-1.2% of ecological fibers and 0.2-1.5% of redispersible latex powder in percentage by weight; placing the cementing material, the magnetic mineral powder, the ecological fiber and the redispersible latex powder into a stirrer to be stirred for 5 minutes to obtain powder; placing the modified quartz sand, the hollow glass beads and the vermiculite powder in a stirrer and stirring for 3 minutes to obtain fine aggregate; and (3) placing the powder and the fine aggregate into a stirrer, then adding water accounting for 25-90% of the mass of the powder, and uniformly stirring to obtain the self-insulation anti-cracking mortar for the ferromagnetic building formwork net wall.
The invention has the following beneficial effects:
(1) the self-heat-insulation anti-cracking mortar for the ferromagnetic building formwork net wall takes the modified quartz sand, the hollow glass beads and the vermiculite powder as fine aggregates and takes the cementing material, the magnetic mineral powder, the ecological fiber and the redispersible latex powder as powder, so that the mortar has the advantages of high cohesive force, self heat insulation, good impermeability, strong toughness, strong waterproof and anti-cracking performance, sound absorption, good workability, weather resistance, fire prevention, corrosion prevention, good construction performance and the like;
(2) the self-insulation anti-cracking mortar for the building formwork net wall with the ferromagnetism has good capability of resisting stretching and deformation by utilizing the ecological fiber, has light specific gravity, and is tough, green and environment-friendly.
(3) The self-insulation anti-cracking mortar for the ferromagnetic building formwork mesh wall disclosed by the invention can well play a micro-aggregate effect by utilizing good particle grading of a cementing material, magnetic mineral powder, hollow glass microspheres, modified quartz sand and vermiculite powder, so that the strength and durability of the mortar are improved;
(4) the magnetic mineral powder and the steel plate net contained in the self-insulation anti-cracking mortar for the building formwork net wall with the ferromagnetism are well adsorbed by magnetism, so that the binding power is greatly improved;
(5) the redispersible latex powder contained in the self-insulation anti-cracking mortar for the building formwork net wall with the ferromagnetic material is a homopolymer or a copolymer, has strong toughness and stability, can improve the cohesiveness, cohesion, freezing resistance and hydrophobicity of the mortar, isolates harmful media, plays a role in corrosion prevention on a steel plate net, reduces water absorption and improves construction performance.
Detailed Description
In order to avoid repetition, the technical parameters of the related raw materials or the manufacturing method related in the embodiments are uniformly described, and are not described again in the embodiments:
the cementing material consists of cement and industrial waste residue micro powder, wherein the mass percent of the cement in the cementing material is 40-70%, and the mass percent of the industrial waste residue micro powder in the cementing material is 30-60%; the cement is at least one of ordinary portland cement and pozzolan cement with the mark number of 42.5MPa or above; the industrial waste residue micro powder is at least one of blast furnace slag micro powder, coal gangue waste residue micro powder, iron tailing slag micro powder and lead-zinc tailing slag micro powder.
The magnetic mineral powder is formed by mixing ferromagnetic powder and slag micro powder according to a mass ratio, wherein the ferromagnetic powder comprises the following components in parts by mass: the slag micro powder is 1 (8-15); the particle size of the magnetic mineral powder is 0.15-0.6 mm; the ferromagnetic powder is composed of 60% of metal material and 40% of non-metal material, wherein the metal material is at least one of iron and nickel, and the non-metal material is at least one of boron, carbon and silicon.
The particle size of the vermiculite powder is 0.3-0.8 mm, and the density is 50-150 kg/m3。
The particle size of the hollow glass bead is 5-150 mu m.
The modified quartz sand is prepared by mixing a modifier and quartz sand according to a mass ratio, wherein the modifier comprises the following components in parts by mass: the quartz sand is 1 (12-25); the modifier is one of cocamidopropyl betaine and fatty alcohol-polyoxyethylene ether sodium sulfate.
The ecological fiber is prepared by crushing and drying high-fiber raw materials, the length of the ecological fiber is 0.3-2 mm, and the density of the ecological fiber is 150-550 kg/m3(ii) a The high fiber raw material is one of straw stalk, wheat stalk, corn stalk, bark and tree trunk.
The redispersible latex powder is at least one of a mixture A and a mixture B; the mixture A is formed by mixing acrylic ester and styrene copolymerized rubber powder; the mixture B is formed by mixing butadiene copolymerized rubber powder and a material C, wherein the material C is at least one of vinyl acetate homopolymerized rubber powder and styrene.
Example 1
The self-insulation anti-cracking mortar for the building formwork net wall with the ferromagnetic material comprises the following components in percentage by weight: 43% of cementing material, 15% of magnetic mineral powder, 2% of vermiculite powder, 12% of hollow glass beads, 25% of modified quartz sand, 0.5% of ecological fiber and 0.5% of redispersible latex powder, wherein the total amount is 100%; the cementing material, the magnetic mineral powder, the ecological fiber and the redispersible latex powder are powder materials, and the modified quartz sand, the hollow glass beads and the vermiculite powder are fine aggregates; the additive is water, and the mass of the additive is 50% of the mass of the powder.
The preparation method of the self-insulation anti-cracking mortar for the building formwork net wall with the ferromagnetic material specifically comprises the following steps:
43 percent of cementing material, 15 percent of magnetic mineral powder, 2 percent of vermiculite powder, 12 percent of hollow glass beads, 25 percent of modified quartz sand, 0.5 percent of ecological fiber and 0.5 percent of redispersible latex powder; placing the cementing material, the magnetic mineral powder, the ecological fiber and the redispersible latex powder into a stirrer to be stirred for 5 minutes to obtain powder; placing the modified quartz sand, the hollow glass beads and the vermiculite powder in a stirrer and stirring for 3 minutes to obtain fine aggregate; and (3) placing the powder and the fine aggregate into a stirrer, then adding water accounting for 50% of the mass of the powder, and uniformly stirring to obtain the self-insulation anti-cracking mortar for the ferromagnetic building formwork net wall.
The performance test results of the self-insulation anti-cracking mortar for the building formwork net wall with the ferromagnetic material in the embodiment are shown in table 1.
Example 2
The self-insulation anti-cracking mortar for the building formwork net wall with the ferromagnetic material comprises the following components in percentage by weight: 30% of a cementing material, 25% of magnetic mineral powder, 2.5% of vermiculite powder, 6% of hollow glass beads, 35% of modified quartz sand, 1.2% of ecological fibers and 0.3% of redispersible latex powder, wherein the total amount is 100%; the cementing material, the magnetic mineral powder, the ecological fiber and the redispersible latex powder are powder materials, and the modified quartz sand, the hollow glass beads and the vermiculite powder are fine aggregates; the additive is water, and the mass of the additive is 40% of the mass of the powder.
The preparation method of the self-insulation anti-cracking mortar for the building formwork net wall with the ferromagnetic material specifically comprises the following steps:
30% of cementing material, 25% of magnetic mineral powder, 2.5% of vermiculite powder, 6% of hollow glass beads, 35% of modified quartz sand, 1.2% of ecological fiber and 0.3% of redispersible latex powder; placing the cementing material, the magnetic mineral powder, the ecological fiber and the redispersible latex powder into a stirrer to be stirred for 5 minutes to obtain powder; placing the modified quartz sand, the hollow glass beads and the vermiculite powder in a stirrer and stirring for 3 minutes to obtain fine aggregate; and (3) placing the powder and the fine aggregate into a stirrer, then adding water accounting for 40% of the mass of the powder, and uniformly stirring to obtain the self-insulation anti-cracking mortar for the ferromagnetic building formwork net wall.
The performance test results of the self-insulation anti-cracking mortar for the building formwork net wall with the ferromagnetic material in the embodiment are shown in table 1.
Example 3
The self-insulation anti-cracking mortar for the building formwork net wall with the ferromagnetic material comprises the following components in percentage by weight: 55% of a cementing material, 8% of magnetic mineral powder, 0.8% of vermiculite powder, 20% of hollow glass beads, 15% of modified quartz sand, 0.2% of ecological fibers and 1% of redispersible latex powder, wherein the total percentage is 100%; the cementing material, the magnetic mineral powder, the ecological fiber and the redispersible latex powder are powder materials, and the modified quartz sand, the hollow glass beads and the vermiculite powder are fine aggregates; the additive is water, and the mass of the additive is 75% of the mass of the powder.
The preparation method of the self-insulation anti-cracking mortar for the building formwork net wall with the ferromagnetic material specifically comprises the following steps:
55% of cementing material, 8% of magnetic mineral powder, 0.8% of vermiculite powder, 20% of hollow glass beads, 15% of modified quartz sand, 0.2% of ecological fiber and 1% of redispersible latex powder; placing the cementing material, the magnetic mineral powder, the ecological fiber and the redispersible latex powder into a stirrer to be stirred for 5 minutes to obtain powder; placing the modified quartz sand, the hollow glass beads and the vermiculite powder in a stirrer and stirring for 3 minutes to obtain fine aggregate; and (3) placing the powder and the fine aggregate into a stirrer, then adding water accounting for 75% of the mass of the powder, and uniformly stirring to obtain the self-insulation anti-cracking mortar for the ferromagnetic building formwork net wall.
The performance test results of the self-insulation anti-cracking mortar for the building formwork net wall with the ferromagnetic material in the embodiment are shown in table 1.
Table 1 Performance test results of self-insulation anti-cracking mortar described in examples 1-3
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The self-insulation anti-cracking mortar for the ferromagnetic building formwork net wall is characterized by comprising the following components in percentage by weight: 30-55% of a cementing material, 5-25% of magnetic mineral powder, 0.5-3% of vermiculite powder, 4-20% of hollow glass beads, 15-35% of modified quartz sand, 0.1-1.2% of ecological fiber and 0.2-1.5% of redispersible latex powder, wherein the total amount is 100%; the cementing material, the magnetic mineral powder, the ecological fiber and the redispersible latex powder are powder materials, and the modified quartz sand, the hollow glass beads and the vermiculite powder are fine aggregates; the additive is water, and the mass of the additive is 25-90% of the mass of the powder.
2. The self-insulation anti-cracking mortar for the ferromagnetic building formwork net wall as claimed in claim 1, wherein the self-insulation anti-cracking mortar comprises the following components in percentage by weight: the cementing material consists of cement and industrial waste residue micro powder, wherein the mass percent of the cement in the cementing material is 40-70%, and the mass percent of the industrial waste residue micro powder in the cementing material is 30-60%; the cement is at least one of ordinary portland cement and pozzolan cement with the mark number of 42.5MPa or above; the industrial waste residue micro powder is at least one of blast furnace slag micro powder, coal gangue waste residue micro powder, iron tailing slag micro powder and lead-zinc tailing slag micro powder.
3. The self-insulation anti-cracking mortar for the ferromagnetic building formwork net wall as claimed in claim 1, wherein the self-insulation anti-cracking mortar comprises the following components in percentage by weight: the magnetic mineral powder is formed by mixing ferromagnetic powder and slag micro powder according to a mass ratio, wherein the ferromagnetic powder comprises the following components in parts by mass: the slag micro powder is 1 (8-15); the particle size of the magnetic mineral powder is 0.15-0.6 mm; the ferromagnetic powder is composed of 60% of metal material and 40% of non-metal material, wherein the metal material is at least one of iron and nickel, and the non-metal material is at least one of boron, carbon and silicon.
4. The self-insulation anti-cracking mortar for the ferromagnetic building formwork net wall as claimed in claim 1, wherein the self-insulation anti-cracking mortar comprises the following components in percentage by weight: the particle size of the vermiculite powder is 0.3-0.8 mm, and the density is 50-150 kg/m3。
5. The self-insulation anti-cracking mortar for the ferromagnetic building formwork net wall as claimed in claim 1, wherein the self-insulation anti-cracking mortar comprises the following components in percentage by weight: the particle size of the hollow glass bead is 5-150 mu m.
6. The self-insulation anti-cracking mortar for the ferromagnetic building formwork net wall as claimed in claim 1, wherein the self-insulation anti-cracking mortar comprises the following components in percentage by weight: the modified quartz sand is prepared by mixing a modifier and quartz sand according to a mass ratio, wherein the modifier comprises the following components in parts by mass: the quartz sand is 1 (12-25); the modifier is one of cocamidopropyl betaine and fatty alcohol-polyoxyethylene ether sodium sulfate.
7. The self-insulation anti-cracking mortar for the ferromagnetic building formwork net wall as claimed in claim 1, wherein the self-insulation anti-cracking mortar comprises the following components in percentage by weight: the ecological fiber is prepared by crushing and drying high-fiber raw materials, the length of the ecological fiber is 0.3-2 mm, and the density of the ecological fiber is 150-550 kg/m3(ii) a The high fiber raw material is one of straw stalk, wheat stalk, corn stalk, bark and tree trunk.
8. The self-insulation anti-cracking mortar for the ferromagnetic building formwork net wall as claimed in claim 1, wherein the self-insulation anti-cracking mortar comprises the following components in percentage by weight: the redispersible latex powder is at least one of a mixture A and a mixture B; the mixture A is formed by mixing acrylic ester and styrene copolymerized rubber powder; the mixture B is formed by mixing butadiene copolymerized rubber powder and a material C, wherein the material C is at least one of vinyl acetate homopolymerized rubber powder and styrene.
9. A preparation method of the self-heat-insulation anti-cracking mortar for the ferromagnetic building formwork net wall as claimed in any one of claims 1 to 8 comprises the following steps:
weighing 30-55% of a cementing material, 5-25% of magnetic mineral powder, 0.5-3% of vermiculite powder, 4-20% of hollow glass beads, 15-35% of modified quartz sand, 0.1-1.2% of ecological fibers and 0.2-1.5% of redispersible latex powder in percentage by weight; placing the cementing material, the magnetic mineral powder, the ecological fiber and the redispersible latex powder into a stirrer to be stirred for 5 minutes to obtain powder; placing the modified quartz sand, the hollow glass beads and the vermiculite powder in a stirrer and stirring for 3 minutes to obtain fine aggregate; and (3) placing the powder and the fine aggregate into a stirrer, then adding water accounting for 25-90% of the mass of the powder, and uniformly stirring to obtain the self-insulation anti-cracking mortar for the ferromagnetic building formwork net wall.
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| CN111646741B (en) * | 2020-06-28 | 2022-03-25 | 宁波新力建材科技有限公司 | Iron ore special concrete and preparation method thereof |
| CN112624706B (en) * | 2020-12-30 | 2022-01-14 | 重庆鑫科混凝土有限公司 | High-strength concrete and preparation process thereof |
| CN113092578A (en) * | 2021-04-07 | 2021-07-09 | 上海应用技术大学 | Method for rapidly detecting external thermal insulation pasting quality of building |
| CN116535152A (en) * | 2022-01-26 | 2023-08-04 | 中星众安保温科技(山东)有限公司 | Inorganic microbead modified silicon-plastic heat-insulating material and preparation method thereof |
| CN114853375A (en) * | 2022-04-15 | 2022-08-05 | 浙江天造环保科技有限公司 | Building garbage intelligent manufacturing process and building material preparation equipment |
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