CN113279513A - Preparation method of regenerated thermal insulation material suitable for masonry - Google Patents
Preparation method of regenerated thermal insulation material suitable for masonry Download PDFInfo
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- CN113279513A CN113279513A CN202110553343.0A CN202110553343A CN113279513A CN 113279513 A CN113279513 A CN 113279513A CN 202110553343 A CN202110553343 A CN 202110553343A CN 113279513 A CN113279513 A CN 113279513A
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- thermal insulation
- insulation material
- fine aggregate
- portland cement
- waste
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- 239000012774 insulation material Substances 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 239000002699 waste material Substances 0.000 claims abstract description 27
- 239000000463 material Substances 0.000 claims abstract description 26
- 239000004567 concrete Substances 0.000 claims abstract description 21
- 239000011398 Portland cement Substances 0.000 claims abstract description 19
- 239000004088 foaming agent Substances 0.000 claims abstract description 17
- 239000002245 particle Substances 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229920006327 polystyrene foam Polymers 0.000 claims abstract description 11
- 230000001172 regenerating effect Effects 0.000 claims abstract description 8
- 239000004576 sand Substances 0.000 claims abstract description 6
- 239000004575 stone Substances 0.000 claims abstract description 4
- 238000007493 shaping process Methods 0.000 claims description 21
- 238000000465 moulding Methods 0.000 claims description 15
- 238000003756 stirring Methods 0.000 claims description 15
- 239000011810 insulating material Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 7
- 238000012216 screening Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 238000007569 slipcasting Methods 0.000 claims description 4
- 238000009413 insulation Methods 0.000 description 6
- 238000004321 preservation Methods 0.000 description 4
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 3
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 3
- 125000000129 anionic group Chemical group 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 239000004094 surface-active agent Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009863 impact test Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C1/00—Building elements of block or other shape for the construction of parts of buildings
- E04C1/40—Building elements of block or other shape for the construction of parts of buildings built-up from parts of different materials, e.g. composed of layers of different materials or stones with filling material or with insulating inserts
- E04C1/41—Building elements of block or other shape for the construction of parts of buildings built-up from parts of different materials, e.g. composed of layers of different materials or stones with filling material or with insulating inserts composed of insulating material and load-bearing concrete, stone or stone-like material
-
- 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
-
- 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
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/2038—Resistance against physical degradation
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/52—Sound-insulating 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/24—Structural elements or technologies for improving thermal insulation
- Y02A30/244—Structural elements or technologies for improving thermal insulation using natural or recycled building materials, e.g. straw, wool, clay or used tires
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Ceramic Engineering (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a preparation method of a regenerative thermal insulation material suitable for brickwork, which comprises coarse aggregate, fine aggregate, sand stone, portland cement and a foaming agent, wherein the coarse aggregate is particles with the diameter larger than 5mm formed by crushing waste polystyrene foam boards, the fine aggregate is particles with the diameter smaller than 5mm screened by crushing waste concrete blocks, the portland cement, the fine aggregate and the sand stone are added with water and stirred according to the proportion of 7: 2: 1 to prepare an outer-layer wear-resistant material, and the portland cement, the coarse aggregate and the fine aggregate are added with water and stirred according to the proportion of 7: 1: 2 and foamed by the foaming agent to prepare a light thermal insulation material. According to the preparation method of the regenerated thermal insulation material suitable for the masonry, the waste concrete is used as the fine aggregate to prepare the outer-layer wear-resistant material and the light thermal insulation material, and meanwhile, the waste polystyrene foam particles are used as the coarse aggregate to prepare the light thermal insulation material, so that the concrete waste and the waste polystyrene foam plate are utilized, and the influence of the waste material on the environment is reduced.
Description
Technical Field
The invention relates to the technical field of building materials, in particular to a preparation method of a regenerative thermal insulation material suitable for masonry.
Background
In order to improve the ecological benefit, the social benefit and the economic benefit of the building engineering, green buildings and energy-saving buildings are more and more in the whole country, and the energy consumption of the buildings is reduced by about 30% of the total social energy consumption, so that the energy consumption of the buildings plays a role in environmental protection and energy saving on the whole society.
At the in-process of building site construction, can set up the enclosure and maintain and block, these enclosures can demolish after the construction is accomplished to become the construction waste material, these waste material concrete do not have recycle, piling up of waste material can occupy more space.
Therefore, a preparation method of the regenerated thermal insulation material suitable for the masonry is provided.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a preparation method of a regenerated thermal insulation material suitable for brickwork.
In order to achieve the purpose, the invention adopts the following technical scheme:
a preparation method of a regenerative thermal insulation material suitable for masonry comprises the following specific operation steps:
s1: crushing the waste polystyrene foam board into particles with the diameter larger than 5mm as coarse aggregate;
s2: taking waste concrete blocks, crushing the waste concrete blocks, and screening concrete particles by using a screen mesh to serve as fine aggregate;
s3: putting the portland cement, the fine aggregate and the sand stone into a stirrer, and adding water to stir to prepare an outer-layer wear-resistant material;
s4: injecting the outer-layer wear-resistant material into a mold for molding, and taking out the molded outer-layer wear-resistant material after molding;
s5: putting the portland cement, the coarse aggregate and the fine aggregate into a stirrer, adding water, stirring to form a mixture, adding a foaming agent into the mixture, stirring and mixing to prepare a light heat-insulating material;
s6: injecting the light heat-insulating material into the round hole of the molded outer-layer wear-resistant material for molding to complete the preparation;
the mould comprises a lower template and a forming box arranged on the upper surface of the lower template, wherein the inner top wall of the forming box is fixedly connected with forming cylinders, the number of the forming cylinders is 2-7, the bottom ends of the forming cylinders are in lap joint with the upper surface of the lower template, and grouting pipes are arranged on the upper surface of the forming box.
Preferably, the ratio of the portland cement, the fine aggregate and the sand in S3 is 7: 2: 1.
Preferably, the ratio of the portland cement, the coarse aggregate and the fine aggregate in S5 is 7: 1: 2.
Preferably, the forming box is a cuboid with a length of 40-50 cm, a width of 30-45 cm and a height of 30-45 cm and with a downward opening.
The invention has the following beneficial effects:
1. according to the preparation method of the regenerated thermal insulation material suitable for the masonry, the waste concrete is used as the fine aggregate to prepare the outer-layer wear-resistant material and the light thermal insulation material, and meanwhile, the waste polystyrene foam particles are used as the coarse aggregate to prepare the light thermal insulation material, so that the concrete waste and the waste polystyrene foam plate are utilized, and the influence of the waste material on the environment is reduced.
2. According to the preparation method of the regenerative thermal insulation material suitable for the masonry, the portland cement in the outer-layer wear-resistant material has high wear resistance, the wear resistance of the material is improved, the portland cement in the light thermal insulation material is foamed by the foaming agent, a plurality of small holes are formed inside the light thermal insulation material, the material has a sound insulation effect, and meanwhile, the coarse aggregate is made of polystyrene foam and has a high thermal insulation function.
Drawings
FIG. 1 is a schematic view of a front cross-sectional structure of the mold of the present invention;
FIG. 2 is a schematic view of a top-down structure of the mold of the present invention;
in the figure: 1 lower template, 2 forming boxes, 3 forming cylinders and 4 grouting pipes.
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.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Comparison of examples
Example 1
A regenerated thermal insulation material suitable for brickwork comprises the following specific operation steps:
s1: crushing the waste polystyrene foam board into particles with the diameter larger than 5mm as coarse aggregate;
s2: crushing the waste concrete blocks, and screening out the concrete blocks with the diameter less than 5mm by using a screen mesh
Concrete particles are used as fine aggregate;
s3: putting the portland cement, the fine aggregate and the sandstone into a stirrer, adding water, stirring for 45-50 min, and taking out to prepare an outer-layer wear-resistant material;
s4: injecting the outer-layer wear-resistant material into a mold, placing the mold in a heat preservation box at 25 ℃ for molding for 10 hours, and taking out the outer-layer wear-resistant material after molding;
s5: putting the Portland cement, the coarse aggregate and the fine aggregate into a stirrer, adding water, stirring for 40-45 min, adding a foaming agent, continuously stirring for 5-10 min, and mixing to prepare the light heat-insulating material, wherein the foaming agent is any one of a rosin foaming agent or an anionic synthetic surfactant foaming agent;
s6: injecting the light heat-insulating material into the round hole of the outer-layer wear-resistant material after molding for 10 hours to complete the preparation;
the mould includes lower bolster 1 and places at 1 upper surface's of lower bolster shaping case 2, and the interior roof fixedly connected with shaping cylinder 3 of shaping case 2, and the quantity of shaping cylinder 3 is five, and the bottom of shaping cylinder 3 and the upper surface overlap joint of lower bolster 1, and the upper surface of shaping case 1 is provided with slip casting pipe 4.
Example 2
Different from the embodiment 1, the specific operation steps are as follows:
s1: crushing the waste polystyrene foam board into particles with the diameter larger than 5mm as coarse aggregate;
s2: crushing the waste concrete blocks, and screening out the concrete blocks with the diameter less than 5mm by using a screen mesh
Concrete particles are used as fine aggregate;
s3: putting the portland cement, the fine aggregate and the sandstone into a stirrer, adding water, stirring for 45-50 min, and taking out to prepare an outer-layer wear-resistant material;
s4: injecting the outer-layer wear-resistant material into a mold, placing the mold in a heat preservation box at 25 ℃ for molding for 10 hours, and taking out the outer-layer wear-resistant material after molding;
s5: putting the Portland cement, the coarse aggregate and the fine aggregate into a stirrer, adding water, stirring for 40-45 min, adding a foaming agent, continuously stirring for 5-10 min, and mixing to prepare the light heat-insulating material, wherein the foaming agent is any one of a rosin foaming agent or an anionic synthetic surfactant foaming agent;
s6: injecting the light heat-insulating material into the round hole of the outer-layer wear-resistant material after molding for 10 hours to complete the preparation;
the mould includes lower bolster 1 and places at 1 upper surface's of lower bolster shaping case 2, and the interior roof fixedly connected with shaping cylinder 3 of shaping case 2, the quantity of shaping cylinder 3 is two, and the bottom of shaping cylinder 3 and the upper surface overlap joint of lower bolster 1, and the upper surface of shaping case 1 is provided with slip casting pipe 4.
Example 3
Different from the embodiment 1, the specific operation steps are as follows:
s1: crushing the waste polystyrene foam board into particles with the diameter larger than 5mm as coarse aggregate;
s2: crushing the waste concrete blocks, and screening out the concrete blocks with the diameter less than 5mm by using a screen mesh
Concrete particles are used as fine aggregate;
s3: putting the portland cement, the fine aggregate and the sandstone into a stirrer, adding water, stirring for 45-50 min, and taking out to prepare an outer-layer wear-resistant material;
s4: injecting the outer-layer wear-resistant material into a mold, placing the mold in a heat preservation box at 25 ℃ for molding for 10 hours, and taking out the outer-layer wear-resistant material after molding;
s5: putting the Portland cement, the coarse aggregate and the fine aggregate into a stirrer, adding water, stirring for 40-45 min, adding a foaming agent, continuously stirring for 5-10 min, and mixing to prepare the light heat-insulating material, wherein the foaming agent is any one of a rosin foaming agent or an anionic synthetic surfactant foaming agent;
s6: injecting the light heat-insulating material into the round hole of the outer-layer wear-resistant material after molding for 10 hours to complete the preparation;
the mould includes lower bolster 1 and places at 1 upper surface's of lower bolster shaping case 2, and the interior roof fixedly connected with shaping cylinder 3 of shaping case 2, and the quantity of shaping cylinder 3 is seven, and the bottom of shaping cylinder 3 and the upper surface overlap joint of lower bolster 1, and the upper surface of shaping case 1 is provided with slip casting pipe 4.
Second, test comparison
And (3) testing the strength: the insulation was made according to examples 1, 2 and 3, respectively, and three insulation were subjected to an impact test, i.e. an impact device was applied to the three insulation at the same height with the same force, and the time of occurrence of cracks on the surfaces of the three insulation was recorded.
And (3) heat preservation test: the heat-insulating material is manufactured according to the embodiment 1, the embodiment 2 and the embodiment 3 respectively, three box bodies with openings on the side surfaces are taken, the side surfaces of the three heat-insulating materials are sealed with the openings of the box bodies, the interiors of the three box bodies are heated to the same temperature, and the time when the temperatures of the interiors of the three box bodies are reduced to the same temperature value is recorded.
From the above comparative data, it can be seen that the quality of the insulation material in example 1 is better than that in examples 2 and 3, and therefore example 1 is the best embodiment of the present invention.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (4)
1. A preparation method of a regenerative thermal insulation material suitable for masonry is characterized by comprising the following specific operation steps:
s1: crushing the waste polystyrene foam board into particles with the diameter larger than 5mm as coarse aggregate;
s2: taking waste concrete blocks, crushing the waste concrete blocks, and screening concrete particles by using a screen mesh to serve as fine aggregate;
s3: putting the portland cement, the fine aggregate and the sand stone into a stirrer, and adding water to stir to prepare an outer-layer wear-resistant material;
s4: injecting the outer-layer wear-resistant material into a mold for molding, and taking out the molded outer-layer wear-resistant material after molding;
s5: putting the portland cement, the coarse aggregate and the fine aggregate into a stirrer, adding water, stirring to form a mixture, adding a foaming agent into the mixture, stirring and mixing to prepare a light heat-insulating material;
s6: injecting the light heat-insulating material into the round hole of the molded outer-layer wear-resistant material for molding to complete the preparation;
the mould includes lower bolster (1) and places forming box (2) at lower bolster (1) upper surface, the interior roof fixedly connected with shaping cylinder (3) of forming box (2), the quantity of shaping cylinder (3) is 2-7, and the bottom of shaping cylinder (3) and the upper surface overlap joint of lower bolster (1), the upper surface of forming box (1) is provided with slip casting pipe (4).
2. The method for preparing the regenerative thermal insulation material suitable for the masonry according to claim 1, wherein the method comprises the following steps: the ratio of the portland cement, the fine aggregate and the sand in the S3 is 7: 2: 1.
3. The method for preparing the regenerative thermal insulation material suitable for the masonry according to claim 1, wherein the method comprises the following steps: the ratio of the portland cement, the coarse aggregate and the fine aggregate in the S5 is 7: 1: 2.
4. The method for preparing the regenerative thermal insulation material suitable for the masonry according to claim 1, wherein the method comprises the following steps: the forming box (2) is a cuboid with a length of 40-50 cm, a width of 30-45 cm and a height of 30-45 cm and with a downward opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110553343.0A CN113279513A (en) | 2021-05-20 | 2021-05-20 | Preparation method of regenerated thermal insulation material suitable for masonry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110553343.0A CN113279513A (en) | 2021-05-20 | 2021-05-20 | Preparation method of regenerated thermal insulation material suitable for masonry |
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| Publication Number | Publication Date |
|---|---|
| CN113279513A true CN113279513A (en) | 2021-08-20 |
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| CN202110553343.0A Pending CN113279513A (en) | 2021-05-20 | 2021-05-20 | Preparation method of regenerated thermal insulation material suitable for masonry |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10041747A1 (en) * | 2000-07-18 | 2002-02-07 | Lias Franken Leichtbau Gmbh | Insulating block made of frame and mortar filling |
| CN201050133Y (en) * | 2007-05-12 | 2008-04-23 | 吴华明 | EPS light composite brick, plate, block serial construction material |
| CN201082984Y (en) * | 2007-09-16 | 2008-07-09 | 邢晓峰 | Light thermal insulation acoustic insulation building blocks |
| CN101508552A (en) * | 2009-03-26 | 2009-08-19 | 绵阳市西蜀新型建材有限公司 | Construction castoff composite silicate thermal insulation hollow block and method of producing the same |
| CN106007578A (en) * | 2016-07-28 | 2016-10-12 | 同济大学 | Preparation method of lightweight self-thermal insulation building block containing abandoned brick particles and abandoned foams |
| CN108178581A (en) * | 2018-01-19 | 2018-06-19 | 南通职业大学(江苏省南通技师学院、江苏省南通市高级技工学校) | A kind of composite heat insulation block and preparation method thereof |
| CN207874502U (en) * | 2018-02-02 | 2018-09-18 | 曲水标威新型建材有限公司 | Heat preservation for producing hollow aerated bricks is framed |
| CN210453130U (en) * | 2019-07-03 | 2020-05-05 | 赤水市瑞泰建材有限公司 | Mould for making blank of baked brick |
-
2021
- 2021-05-20 CN CN202110553343.0A patent/CN113279513A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10041747A1 (en) * | 2000-07-18 | 2002-02-07 | Lias Franken Leichtbau Gmbh | Insulating block made of frame and mortar filling |
| CN201050133Y (en) * | 2007-05-12 | 2008-04-23 | 吴华明 | EPS light composite brick, plate, block serial construction material |
| CN201082984Y (en) * | 2007-09-16 | 2008-07-09 | 邢晓峰 | Light thermal insulation acoustic insulation building blocks |
| CN101508552A (en) * | 2009-03-26 | 2009-08-19 | 绵阳市西蜀新型建材有限公司 | Construction castoff composite silicate thermal insulation hollow block and method of producing the same |
| CN106007578A (en) * | 2016-07-28 | 2016-10-12 | 同济大学 | Preparation method of lightweight self-thermal insulation building block containing abandoned brick particles and abandoned foams |
| CN108178581A (en) * | 2018-01-19 | 2018-06-19 | 南通职业大学(江苏省南通技师学院、江苏省南通市高级技工学校) | A kind of composite heat insulation block and preparation method thereof |
| CN207874502U (en) * | 2018-02-02 | 2018-09-18 | 曲水标威新型建材有限公司 | Heat preservation for producing hollow aerated bricks is framed |
| CN210453130U (en) * | 2019-07-03 | 2020-05-05 | 赤水市瑞泰建材有限公司 | Mould for making blank of baked brick |
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Application publication date: 20210820 |