CN114412121A - Magnesium oxide light heat-insulation geothermal brick - Google Patents
Magnesium oxide light heat-insulation geothermal brick Download PDFInfo
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- CN114412121A CN114412121A CN202111675178.2A CN202111675178A CN114412121A CN 114412121 A CN114412121 A CN 114412121A CN 202111675178 A CN202111675178 A CN 202111675178A CN 114412121 A CN114412121 A CN 114412121A
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- insulating
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/02—Flooring or floor layers composed of a number of similar elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
- B28B13/02—Feeding the unshaped material to moulds or apparatus for producing shaped articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
- B28B13/04—Discharging the shaped articles
- B28B13/06—Removing the shaped articles from moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
- B28B17/02—Conditioning the material prior to shaping
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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
- C04B28/30—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 magnesium cements or similar cements
- C04B28/32—Magnesium oxychloride cements, e.g. Sorel cement
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/18—Separately-laid insulating layers; Other additional insulating measures; Floating floors
- E04F15/181—Insulating layers integrally formed with the flooring or the flooring elements
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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
- C04B2111/40—Porous or lightweight materials
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F2290/00—Specially adapted covering, lining or flooring elements not otherwise provided for
- E04F2290/04—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire
Abstract
The invention discloses a light magnesium oxide heat-insulation geothermal brick, which comprises a geothermal brick body, wherein hollow parts are arranged on two sides in the geothermal brick body, and heat-insulation materials are filled in the hollow parts; the geothermal brick body comprises the following components in parts by weight: 30-50 parts of magnesium oxide, 20-40 parts of magnesium chloride, 5-10 parts of sawdust, 3-9 parts of crop waste, 11-16 parts of gypsum powder, 1-5 parts of calcium hydroxide, 6-13 parts of perlite, 3-8 parts of waste glass fiber and 160 parts of water 130-; according to the invention, chemical components such as magnesium oxide, magnesium chloride, gypsum powder and calcium hydroxide are adopted to react, and sawdust and crop waste are condensed into a firmer brick body structure, so that a light and heat-insulating poor conductor material is prepared, heat conduction can be well prevented, a good heat insulation effect is achieved, and the hollow part of the geothermal brick body is filled with a heat insulation material, so that the weight of the geothermal brick can be further reduced, and the heat insulation effect of the geothermal brick can be further improved.
Description
Technical Field
The invention relates to the technical field of heat-insulating geothermal bricks, in particular to a magnesium oxide light heat-insulating geothermal brick.
Background
At present, the heating mode of the geothermal pipe used in the buildings in northern China is generally adopted, and the trend of replacing the heating mode of the radiating fin is great. However, the construction process of the existing geothermal pipe is not generally carried out according to the national operation technical specifications, and the main reasons are that the technical requirements are high, the difficulty is high, the manufacturing cost is high, and the materials are complex. The existing material manufacturers are catering to the market, the laying of geothermal materials is easier and simpler, the originally strict technical rules are simplified, when the geothermal pipes are laid, only a thin layer of foam heat insulation film is laid on a base layer, a steel wire mesh is arranged on the foam heat insulation film, then the geothermal pipes are laid, then, the construction is finished by pouring broken stones and filling and fixing cement mortar, and the heat insulation geothermal bricks are generally adopted for laying at present.
However, the traditional heat-insulating geothermal brick in the current market is generally made of cement, fly ash and other heavy materials, has a common heat-insulating effect and is heavy in self weight.
Disclosure of Invention
The invention aims to provide a light magnesium oxide heat-insulating geothermal brick to solve the problems that the traditional heat-insulating geothermal brick has a common heat-insulating effect and heavier self weight.
In order to achieve the purpose, the invention provides the following technical scheme: a light magnesium oxide heat-insulation geothermal brick comprises a geothermal brick body, wherein hollow parts are arranged on two sides in the geothermal brick body, and heat-insulation materials are filled in the hollow parts;
the geothermal brick body comprises the following components in parts by weight: 30-50 parts of magnesium oxide, 20-40 parts of magnesium chloride, 5-10 parts of sawdust, 3-9 parts of crop waste, 11-16 parts of gypsum powder, 1-5 parts of calcium hydroxide, 6-13 parts of perlite, 3-8 parts of waste glass fiber and 160 parts of water 130-.
Preferably, the heat insulation material comprises the following components in parts by weight: 50-70 parts of polyphenyl particles, 10-30 parts of polypropylene fibers, 10-20 parts of polyphenyl particle heat-insulating glue stock, 2-6 parts of heavy calcium carbonate and 3-11 parts of stone powder.
Preferably, a fiber net layer is fixedly mounted on the inner wall surface of the hollow part.
Preferably, the waste glass fibers are crushed into powder by a crusher.
Preferably, the crop waste is one or a mixture of more of corn stalks, wheat stalks, rice hulls, sorghum stalks or cotton stalks.
Preferably, the fiber in the fiber mesh layer is one or a mixture of several of glass fiber, wool fiber, bamboo charcoal fiber, asbestos fiber and rock wool fiber.
A preparation method of a magnesium oxide light heat-preservation geothermal brick comprises the following steps:
s1, putting magnesium oxide, sawdust, crop waste, gypsum powder, calcium hydroxide, perlite and waste glass fiber into a ball mill, adding ball milling beads, carrying out ball milling for 0.5-4 hours, then putting into a stirrer, and stirring for 10-20min to obtain a mixture A;
s2, putting the polyphenyl granules, the polypropylene fibers, the polyphenyl granule heat-preservation glue material, the heavy calcium carbonate and the stone powder into a stirrer together, adding a proper amount of water, and stirring for 20-30min to obtain a heat-preservation material;
s3, putting magnesium chloride into a stirrer, then adding water, and stirring to be thick slurry to obtain a mixture B;
s4, putting the mixture A and the mixture B into a stirrer together for stirring for 30-40 min;
s5, pouring the slurry stirred in the step S4 into a mold, aging at normal temperature for 70-75 hours, demolding to obtain a geothermal brick body, and attaching a fiber net layer to a hollow part in the geothermal brick body;
s6, placing the geothermal brick body into a mould, pouring the heat-insulating material in the step S2 into the hollow part of the geothermal brick body, aging for 70-75 hours at normal temperature, demolding, and naturally curing for 15-20 days at normal temperature to obtain the magnesium oxide light heat-insulating geothermal brick.
Preferably, the weight ratio of the ball grinding material to the ball grinding beads in the step S1 is 1: 5-10.
Preferably, the stirring speed in the step S2 is 150-200 r/min.
Preferably, the stirring speed in the step S4 is 190-240 r/min.
Compared with the prior art, the invention has the beneficial effects that:
the sawdust and the crop waste are light and heat-insulating materials, and are stirred with other raw and auxiliary materials and subjected to injection molding, the chemical components such as magnesium oxide, magnesium chloride, gypsum powder, calcium hydroxide and the like react to coagulate the sawdust and the crop waste into a firmer brick structure, so that a light and heat-insulating bad conductor material is manufactured, the heat conduction can be well prevented, and a good heat-insulating effect is achieved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a flow chart of the preparation method of the present invention.
In the figure: 10-a geothermal brick body; 11-a hollow portion; 20-a fiber web layer; 30-heat preservation material.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
referring to fig. 1-2, the present invention provides a technical solution: a light heat-insulating geothermal brick of magnesium oxide comprises a geothermal brick body 10, wherein hollow parts 11 are arranged on two sides in the geothermal brick body 10, and heat-insulating materials 30 are filled in the hollow parts 11; the geothermal brick body 10 comprises the following components in parts by weight: 30 parts of magnesium oxide, 20 parts of magnesium chloride, 5 parts of sawdust, 3 parts of crop waste, 11 parts of gypsum powder, 1 part of calcium hydroxide, 6 parts of perlite, 3 parts of waste glass fiber and 130 parts of water.
Further, the overall structural strength of the geothermal brick body 10 can be improved through the waste glass fibers, the crack resistance is improved, and the waste glass fibers are adopted, so that the geothermal brick has good environmental protection performance.
Wherein the heat insulation material 30 comprises the following components in parts by weight: 50 parts of polyphenyl particles, 10 parts of polypropylene fibers, 10 parts of polyphenyl particle heat-insulating sizing material, 2 parts of heavy calcium carbonate and 3 parts of stone powder.
Further, the thermal insulation material 30 has extremely excellent thermal insulation performance, which is beneficial to protecting energy, reducing environmental pollution, realizing the unification of economic, social and environmental benefits of building energy conservation, and the polypropylene fiber can increase the crack resistance.
Wherein, the fiber net layer 20 is fixedly installed on the inner wall surface of the hollow part 11, and the fiber net layer 20 can improve the connection strength between the heat insulating material 30 and the geothermal brick body 10.
Wherein, the waste glass fiber is crushed into powder by a crusher.
Wherein the crop waste is one or a mixture of a plurality of corn stalks, wheat stalks, rice hulls, sorghum stalks or cotton stalks.
The fiber in the fiber net layer 20 is one or a mixture of several of glass fiber, wool fiber, bamboo charcoal fiber, asbestos fiber and asbestos fiber.
A preparation method of a magnesium oxide light heat-preservation geothermal brick comprises the following steps:
s1, putting magnesium oxide, sawdust, crop waste, gypsum powder, calcium hydroxide, perlite and waste glass fiber into a ball mill, adding ball milling beads, carrying out ball milling for 2 hours, then putting into a stirrer, and stirring for 20min to obtain a mixture A;
s2, putting the polyphenyl granules, the polypropylene fibers, the polyphenyl granule heat-preservation glue material, the heavy calcium carbonate and the stone powder into a stirrer together, adding a proper amount of water, and stirring for 30min to obtain a heat-preservation material, wherein the stirring speed is 200 r/min;
s3, putting magnesium chloride into a stirrer, then adding water, and stirring to be thick slurry to obtain a mixture B;
s4, putting the mixture A and the mixture B into a stirrer together for stirring, wherein the stirring time is 30min, and the stirring speed is 240 r/min;
s5, pouring the slurry stirred in the step S4 into a mold, aging at normal temperature for 75 hours, demolding to obtain a geothermal brick body, and attaching a fiber net layer to a hollow part in the geothermal brick body;
s6, placing the geothermal brick body into a mould, pouring the heat-insulating material in the step S2 into the hollow part of the geothermal brick body, aging for 75 hours at normal temperature, demolding, and naturally curing for 20 days at normal temperature to obtain the magnesium oxide light heat-insulating geothermal brick.
Wherein, the weight ratio of the ball grinding material to the ball grinding beads in the step S1 is 1: 5.
example 2:
referring to fig. 1-2, the present invention provides a technical solution: a light heat-insulating geothermal brick of magnesium oxide comprises a geothermal brick body 10, wherein hollow parts 11 are arranged on two sides in the geothermal brick body 10, and heat-insulating materials 30 are filled in the hollow parts 11; the geothermal brick body 10 comprises the following components in parts by weight: 40 parts of magnesium oxide, 30 parts of magnesium chloride, 7 parts of sawdust, 5 parts of crop waste, 14 parts of gypsum powder, 3 parts of calcium hydroxide, 10 parts of perlite, 5 parts of waste glass fiber and 150 parts of water.
Wherein the heat insulation material 30 comprises the following components in parts by weight: 60 parts of polyphenyl particles, 20 parts of polypropylene fibers, 15 parts of polyphenyl particle heat-insulating sizing material, 4 parts of heavy calcium carbonate and 7 parts of stone powder.
A preparation method of a magnesium oxide light heat-preservation geothermal brick comprises the following steps:
s1, putting magnesium oxide, sawdust, crop waste, gypsum powder, calcium hydroxide, perlite and waste glass fiber into a ball mill, adding ball milling beads, carrying out ball milling for 2 hours, then putting into a stirrer, and stirring for 20min to obtain a mixture A;
s2, putting the polyphenyl granules, the polypropylene fibers, the polyphenyl granule heat-preservation glue material, the heavy calcium carbonate and the stone powder into a stirrer together, adding a proper amount of water, and stirring for 30min to obtain a heat-preservation material, wherein the stirring speed is 200 r/min;
s3, putting magnesium chloride into a stirrer, then adding water, and stirring to be thick slurry to obtain a mixture B;
s4, putting the mixture A and the mixture B into a stirrer together for stirring, wherein the stirring time is 30min, and the stirring speed is 240 r/min;
s5, pouring the slurry stirred in the step S4 into a mold, aging at normal temperature for 75 hours, demolding to obtain a geothermal brick body, and attaching a fiber net layer to a hollow part in the geothermal brick body;
s6, placing the geothermal brick body into a mould, pouring the heat-insulating material in the step S2 into the hollow part of the geothermal brick body, aging for 75 hours at normal temperature, demolding, and naturally curing for 20 days at normal temperature to obtain the magnesium oxide light heat-insulating geothermal brick.
A preparation method of a magnesium oxide light heat-preservation geothermal brick comprises the following steps:
s1, putting magnesium oxide, sawdust, crop waste, gypsum powder, calcium hydroxide, perlite and waste glass fiber into a ball mill, adding ball milling beads, carrying out ball milling for 2 hours, then putting into a stirrer, and stirring for 20min to obtain a mixture A;
s2, putting the polyphenyl granules, the polypropylene fibers, the polyphenyl granule heat-preservation glue material, the heavy calcium carbonate and the stone powder into a stirrer together, adding a proper amount of water, and stirring for 30min to obtain a heat-preservation material, wherein the stirring speed is 200 r/min;
s3, putting magnesium chloride into a stirrer, then adding water, and stirring to be thick slurry to obtain a mixture B;
s4, putting the mixture A and the mixture B into a stirrer together for stirring, wherein the stirring time is 30min, and the stirring speed is 240 r/min;
s5, pouring the slurry stirred in the step S4 into a mold, aging at normal temperature for 75 hours, demolding to obtain a geothermal brick body, and attaching a fiber net layer to a hollow part in the geothermal brick body;
s6, placing the geothermal brick body into a mould, pouring the heat-insulating material in the step S2 into the hollow part of the geothermal brick body, aging for 75 hours at normal temperature, demolding, and naturally curing for 20 days at normal temperature to obtain the magnesium oxide light heat-insulating geothermal brick.
Example 3:
referring to fig. 1-2, the present invention provides a technical solution: a light heat-insulating geothermal brick of magnesium oxide comprises a geothermal brick body 10, wherein hollow parts 11 are arranged on two sides in the geothermal brick body 10, and heat-insulating materials 30 are filled in the hollow parts 11; the geothermal brick body 10 comprises the following components in parts by weight: 50 parts of magnesium oxide, 40 parts of magnesium chloride, 10 parts of sawdust, 3-9 parts of crop waste, 16 parts of gypsum powder, 5 parts of calcium hydroxide, 13 parts of perlite, 8 parts of waste glass fiber and 160 parts of water.
Wherein the heat insulation material 30 comprises the following components in parts by weight: 70 parts of polyphenyl particles, 30 parts of polypropylene fibers, 20 parts of polyphenyl particle heat-insulating glue stock, 6 parts of heavy calcium carbonate and 11 parts of stone powder.
Test examples
The products of examples 1 to 3 and the existing products were subjected to performance tests, and the test results are shown in Table 1
| Density (kg/m)3) | Coefficient of thermal conductivity (W/mK) | Compressive strength (MPa) | Flame retardancy | |
| Example 1 | 886 | 0.374 | 3.38 | Non-combustible |
| Example 2 | 761 | 0.197 | 3.97 | Non-combustible |
| Example 3 | 591 | 0.269 | 3.28 | Non-combustible |
| Existing products | 1748 | 0.587 | 1.97 | Non-combustible |
TABLE 1
As can be seen from Table 1, the products of examples 1-3 are much lighter in density than the existing products, superior in both heat insulating property and compressive strength, and good in flame retardancy.
As described in the above embodiments, the sawdust and the crop waste materials used in the present invention are light and heat-insulating materials, and after being mixed with other raw and auxiliary materials and injection molded, the chemical components such as magnesium oxide, magnesium chloride, gypsum powder and calcium hydroxide react with each other to coagulate the sawdust and the crop waste materials into a firm brick structure, so as to produce a light and heat-insulating bad conductor material.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The utility model provides a light heat preservation geothermol power brick of magnesium oxide, includes geothermol power brick body (10), its characterized in that: hollow parts (11) are arranged on two sides in the geothermal brick body (10), and heat insulation materials (30) are filled in the hollow parts (11);
the geothermal brick body (10) comprises the following components in parts by weight: 30-50 parts of magnesium oxide, 20-40 parts of magnesium chloride, 5-10 parts of sawdust, 3-9 parts of crop waste, 11-16 parts of gypsum powder, 1-5 parts of calcium hydroxide, 6-13 parts of perlite, 3-8 parts of waste glass fiber and 160 parts of water 130-.
2. The magnesia light heat-insulating geothermal brick according to claim 1, characterized in that: the heat insulation material (30) comprises the following components in parts by weight: 50-70 parts of polyphenyl particles, 10-30 parts of polypropylene fibers, 10-20 parts of polyphenyl particle heat-insulating glue stock, 2-6 parts of heavy calcium carbonate and 3-11 parts of stone powder.
3. The magnesia light heat-insulating geothermal brick according to claim 1, characterized in that: and a fiber net layer (20) is fixedly arranged on the inner wall surface of the hollow part (11).
4. The magnesia light heat-insulating geothermal brick according to claim 1, characterized in that: and crushing the waste glass fibers into powder by a crusher.
5. The magnesia light heat-insulating geothermal brick according to claim 1, characterized in that: the crop waste is one or a mixture of a plurality of corn stalks, wheat stalks, rice hulls, sorghum stalks or cotton stalks.
6. The magnesia light heat-insulating geothermal brick according to claim 3, characterized in that: the fiber in the fiber mesh layer (20) is one or a mixture of several of glass fiber, wool fiber, bamboo charcoal fiber, asbestos fiber and rock wool fiber.
7. A preparation method of a magnesium oxide light heat-preservation geothermal brick is characterized by comprising the following steps:
s1, putting magnesium oxide, sawdust, crop waste, gypsum powder, calcium hydroxide, perlite and waste glass fiber into a ball mill, adding ball milling beads, carrying out ball milling for 0.5-4 hours, then putting into a stirrer, and stirring for 10-20min to obtain a mixture A;
s2, putting the polyphenyl granules, the polypropylene fibers, the polyphenyl granule heat-preservation glue material, the heavy calcium carbonate and the stone powder into a stirrer together, adding a proper amount of water, and stirring for 20-30min to obtain a heat-preservation material;
s3, putting magnesium chloride into a stirrer, then adding water, and stirring to be thick slurry to obtain a mixture B;
s4, putting the mixture A and the mixture B into a stirrer together for stirring for 30-40 min;
s5, pouring the slurry stirred in the step S4 into a mold, aging at normal temperature for 70-75 hours, demolding to obtain a geothermal brick body, and attaching a fiber net layer to a hollow part in the geothermal brick body;
s6, placing the geothermal brick body into a mould, pouring the heat-insulating material in the step S2 into the hollow part of the geothermal brick body, aging for 70-75 hours at normal temperature, demolding, and naturally curing for 15-20 days at normal temperature to obtain the magnesium oxide light heat-insulating geothermal brick.
8. The preparation method of the light magnesia heat-insulating geothermal brick according to claim 7, characterized in that: the weight ratio of the ball grinding material to the ball grinding beads in the step S1 is 1: 5-10.
9. The preparation method of the light magnesia heat-insulating geothermal brick according to claim 7, characterized in that: the stirring speed in the step S2 is 150-200 r/min.
10. The preparation method of the light magnesia heat-insulating geothermal brick according to claim 7, characterized in that: the stirring speed in the step S4 is 190-240 r/min.
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| CN202111675178.2A CN114412121A (en) | 2021-12-31 | 2021-12-31 | Magnesium oxide light heat-insulation geothermal brick |
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| CN202111675178.2A CN114412121A (en) | 2021-12-31 | 2021-12-31 | Magnesium oxide light heat-insulation geothermal brick |
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| CN203113528U (en) * | 2012-06-12 | 2013-08-07 | 李翔宇 | Novel external wall fire prevention and insulation material of glazed hollow bead inorganic insulation mortar |
| CN104234374A (en) * | 2014-07-24 | 2014-12-24 | 浙江天仁风管有限公司 | Antistatic geothermal floor |
| CN105837149A (en) * | 2016-03-25 | 2016-08-10 | 东南大学 | Original-status flue gas desulfurization gypsum polyphenyl granule light-weight heat insulation material and preparation method thereof |
| CN106116425A (en) * | 2016-06-21 | 2016-11-16 | 安徽天锦云漆业有限公司 | A kind of crack-resistant heat-insulation wall construction material and preparation method thereof |
| CN107883420A (en) * | 2017-11-14 | 2018-04-06 | 湖南中大经纬地热开发科技有限公司 | A kind of underground shear wall heat source system and the insulation material based on heat source system |
| CN108975850A (en) * | 2018-08-29 | 2018-12-11 | 济南大学 | A kind of light high-strength heat preservation material and preparation method thereof |
| CN112459270A (en) * | 2020-12-09 | 2021-03-09 | 江西志中工程机械有限公司 | Composite heat-insulating brick |
| CN112459343A (en) * | 2020-12-09 | 2021-03-09 | 徐承仙 | High-strength insulating brick and preparation method thereof |
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