CN111499317A - Autoclaved aerated concrete slab with ultralow heat conductivity coefficient - Google Patents
Autoclaved aerated concrete slab with ultralow heat conductivity coefficient Download PDFInfo
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- CN111499317A CN111499317A CN202010196780.7A CN202010196780A CN111499317A CN 111499317 A CN111499317 A CN 111499317A CN 202010196780 A CN202010196780 A CN 202010196780A CN 111499317 A CN111499317 A CN 111499317A
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- Prior art keywords
- heat conductivity
- aerated concrete
- autoclaved aerated
- ultralow heat
- ultralow
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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
- C04B28/10—Lime cements or magnesium oxide cements
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
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- 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)
- Porous Artificial Stone Or Porous Ceramic Products (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a production process of autoclaved aerated concrete with ultralow heat conductivity coefficient, which comprises the steps of preparing the raw materials according to a proportion, adding the raw materials into a stirring tank for high-speed stirring at the rotating speed of 1400 revolutions per minute, pouring the stirred materials into a mold, walking and standing still, opening the mold, turning and cutting, removing a bottom material, steaming, breaking off the board, and inspecting and warehousing finished products. The invention relates to an autoclaved aerated concrete with ultralow heat conductivity coefficient, which comprises the following components in percentage by weight: 1300 kg (5 cubic) lime: 120 kg, 500 kg of cement, 480 kg of mortar (dry), 200 kg of waste slurry (dry), 2.7 kg of aluminum powder (dry), and the ratio of water to cement: 0.82, admixture 1: 200ml, admixture 2: 200 ml.
Description
Technical Field
The invention relates to autoclaved aerated concrete, and in particular relates to autoclaved aerated concrete with an ultralow heat conductivity coefficient.
Background
With the vigorous implementation of the energy-saving policy of buildings in China, materials used in modern buildings are required to have the properties of light weight, high strength, heat preservation, heat insulation, waste utilization, energy conservation and the like. As a novel building material, the foam concrete has the performance, and is increasingly widely applied to modern building engineering.
At present, lightweight aggregate concrete is widely applied to industrial and civil buildings and other projects, and has the benefits of reducing the dead weight of the structure, improving the seismic performance of the structure, saving the material consumption, improving the component transportation and hoisting efficiency, reducing the foundation load, improving the building functions (heat preservation, heat insulation, fire resistance and the like) and the like.
At present, the heat conductivity coefficient of the autoclaved aerated concrete product is between 0.10 and 0.20W/(m.K), and a product with lower heat conductivity coefficient is required to be used at part of the engineering application.
Disclosure of Invention
The invention aims to provide autoclaved aerated concrete with an ultralow heat conductivity coefficient.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the invention relates to an autoclaved aerated concrete with ultralow heat conductivity coefficient, which comprises the following components in percentage by weight: 1300 kg (5 cube)
The additive 1 is a foam stabilizer.
The foam stabilizer is prepared from silicone polyether emulsion, triethanolamine and oleic acid according to a certain proportion.
The additive 2 is a surfactant.
The surfactant is prepared from triethanolamine, oleic acid, sodium dodecyl sulfate and polyoxyethylene lauryl ether according to a certain proportion.
The production process of the autoclaved aerated concrete slab with the ultralow heat conductivity coefficient comprises the steps of preparing the raw materials according to a proportion, adding the raw materials into a stirring tank for high-speed stirring at the rotating speed of 1400 revolutions per minute, pouring the stirred materials into a mold, walking and standing for 4 hours, opening the mold, turning over and cutting, removing a bottom material, steaming, breaking off the slab, and inspecting and warehousing finished products. By adding the additives such as the foam stabilizer, the surfactant and the like, the pore structure and pore closure of the product are improved, the dry density of the product is reduced, and the product with the heat conductivity coefficient of 0.08 is achieved.
And adding a mesh cage in the pouring process, welding the two groups of meshes by the mesh cage, and putting the mesh cage into a mould after rust prevention treatment.
The pouring material is vibrated by the vibrating spear during the traveling.
The invention has the beneficial effects that:
by adding the additives such as the foam stabilizer, the surfactant and the like, the dry density of the produced product is about 240-260, the pore structure of the product is uniform, and the independence is good.
Drawings
FIG. 1 is a process flow diagram of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and embodiments.
Example 1 as shown in fig. 1, the formulation of the ultra-low thermal conductivity autoclaved aerated concrete of the invention is as follows: 1300 kg (5 cube)
The production process of the autoclaved aerated concrete slab with the ultralow heat conductivity coefficient comprises the steps of preparing the raw materials according to a proportion, adding the raw materials into a stirring tank for high-speed stirring at the rotating speed of 1400 revolutions per minute, pouring the stirred materials into a mold, walking and standing for 4 hours, opening the mold, turning over and cutting, removing a bottom material, steaming, breaking off the slab, and inspecting and warehousing finished products.
Example 2
The formula of the autoclaved aerated concrete with the ultralow heat conductivity coefficient is as follows: 1300 kg (5 cube)
Example 3
The formula of the autoclaved aerated concrete with the ultralow heat conductivity coefficient is as follows: 1300 kg (5 cube)
The present invention is not limited to the above-described preferred embodiments, but rather, 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 (8)
1. The ultra-low heat conductivity coefficient autoclaved aerated concrete is characterized in that: the formula comprises the following components in parts by weight: 1300 kg (5 cube)
2. The autoclaved aerated concrete with ultralow heat conductivity according to claim 1, wherein: the additive 1 is a foam stabilizer.
3. The autoclaved aerated concrete with ultralow heat conductivity according to claim 2, wherein: the foam stabilizer is prepared from silicone polyether emulsion, triethanolamine and oleic acid according to a certain proportion.
4. The autoclaved aerated concrete with ultralow heat conductivity according to claim 1, wherein: the additive 2 is a surfactant.
5. The autoclaved aerated concrete with ultralow heat conductivity according to claim 4, wherein: the surfactant is prepared from triethanolamine, oleic acid, sodium dodecyl sulfate and polyoxyethylene lauryl ether according to a certain proportion.
6. The autoclaved aerated concrete with ultralow heat conductivity according to claim 1, wherein: the production process of the autoclaved aerated concrete with the ultralow heat conductivity coefficient comprises the steps of preparing the raw materials according to a proportion, adding the raw materials into a stirring tank for high-speed stirring at the rotating speed of 1400 revolutions per minute, pouring the stirred materials into a mold, walking and standing for about 4 hours, opening the mold, turning over and cutting, removing a bottom material, steaming, breaking off the board, and inspecting and warehousing finished products. By adding the additives such as the foam stabilizer, the surfactant and the like, the pore structure and pore closure of the product are improved, the dry density of the product is reduced, and the product with the heat conductivity coefficient of 0.08 is achieved.
7. The autoclaved aerated concrete with ultralow heat conductivity according to claim 6, wherein: and (3) adding a mesh cage in the pouring, welding two groups of meshes of the mesh cage, and putting the mesh cage into a mould after rust prevention treatment.
8. The autoclaved aerated concrete with ultralow heat conductivity according to claim 6, wherein: and a vibrating rod is added to vibrate the casting material in the walking and standing process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010196780.7A CN111499317A (en) | 2020-03-19 | 2020-03-19 | Autoclaved aerated concrete slab with ultralow heat conductivity coefficient |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010196780.7A CN111499317A (en) | 2020-03-19 | 2020-03-19 | Autoclaved aerated concrete slab with ultralow heat conductivity coefficient |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111499317A true CN111499317A (en) | 2020-08-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010196780.7A Pending CN111499317A (en) | 2020-03-19 | 2020-03-19 | Autoclaved aerated concrete slab with ultralow heat conductivity coefficient |
Country Status (1)
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| CN (1) | CN111499317A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112341241A (en) * | 2020-11-30 | 2021-02-09 | 浙江开元新型墙体材料有限公司 | Ultra-low dry density autoclaved aerated concrete and production method thereof |
| CN112408930A (en) * | 2020-11-30 | 2021-02-26 | 浙江开元新型墙体材料有限公司 | Autoclaved aerated concrete B05-grade waterproof building block and preparation method thereof |
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| CN101713229A (en) * | 2009-11-13 | 2010-05-26 | 浙江中厦新型建材有限公司 | Autoclaved aerated concrete building block produced from copper ore tails and process thereof |
| CN101913902A (en) * | 2010-08-04 | 2010-12-15 | 舟山市宇锦新型墙体材料有限公司 | Powder ash air-entrained concrete building block and preparation method thereof |
| CN105924113A (en) * | 2016-04-18 | 2016-09-07 | 盐城工学院 | Self-heat insulation aerated concrete building block and mortar for construction of building blocks |
| CN106045559A (en) * | 2016-06-02 | 2016-10-26 | 湖州汇能新材料科技有限公司 | Aerated concrete slab preparation method |
| CN106588077A (en) * | 2016-11-18 | 2017-04-26 | 固原开源节能建材有限公司 | Lightweight high-strength fly ash aerated concrete building block and preparation method thereof |
| EP3176483A1 (en) * | 2015-12-03 | 2017-06-07 | HILTI Aktiengesellschaft | Fire protection and insulating foam on an inorganic base and use of same |
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| CN108585923A (en) * | 2018-04-24 | 2018-09-28 | 南京兴陶预制品有限责任公司 | A kind of autoclave aerated concrete building block and preparation method thereof |
| CN110240462A (en) * | 2019-07-02 | 2019-09-17 | 江苏宝鹏建筑工业化材料有限公司 | ALC plate and preparation method thereof, ALC plate mortar |
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2020
- 2020-03-19 CN CN202010196780.7A patent/CN111499317A/en active Pending
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| CN101713229A (en) * | 2009-11-13 | 2010-05-26 | 浙江中厦新型建材有限公司 | Autoclaved aerated concrete building block produced from copper ore tails and process thereof |
| CN101913902A (en) * | 2010-08-04 | 2010-12-15 | 舟山市宇锦新型墙体材料有限公司 | Powder ash air-entrained concrete building block and preparation method thereof |
| EP3176483A1 (en) * | 2015-12-03 | 2017-06-07 | HILTI Aktiengesellschaft | Fire protection and insulating foam on an inorganic base and use of same |
| CN105924113A (en) * | 2016-04-18 | 2016-09-07 | 盐城工学院 | Self-heat insulation aerated concrete building block and mortar for construction of building blocks |
| CN106045559A (en) * | 2016-06-02 | 2016-10-26 | 湖州汇能新材料科技有限公司 | Aerated concrete slab preparation method |
| CN106588077A (en) * | 2016-11-18 | 2017-04-26 | 固原开源节能建材有限公司 | Lightweight high-strength fly ash aerated concrete building block and preparation method thereof |
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| CN110240462A (en) * | 2019-07-02 | 2019-09-17 | 江苏宝鹏建筑工业化材料有限公司 | ALC plate and preparation method thereof, ALC plate mortar |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112341241A (en) * | 2020-11-30 | 2021-02-09 | 浙江开元新型墙体材料有限公司 | Ultra-low dry density autoclaved aerated concrete and production method thereof |
| CN112408930A (en) * | 2020-11-30 | 2021-02-26 | 浙江开元新型墙体材料有限公司 | Autoclaved aerated concrete B05-grade waterproof building block and preparation method thereof |
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Application publication date: 20200807 |