CN105544844A - Sound-insulation and thermal-insulation hollow brick and manufacturing method - Google Patents
Sound-insulation and thermal-insulation hollow brick and manufacturing method Download PDFInfo
- Publication number
- CN105544844A CN105544844A CN201610108012.5A CN201610108012A CN105544844A CN 105544844 A CN105544844 A CN 105544844A CN 201610108012 A CN201610108012 A CN 201610108012A CN 105544844 A CN105544844 A CN 105544844A
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- China
- Prior art keywords
- sound
- layer
- insulation
- hollow brick
- noise reduction
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000009413 insulation Methods 0.000 title claims abstract description 52
- 239000011464 hollow brick Substances 0.000 title claims abstract description 30
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 8
- 238000013016 damping Methods 0.000 claims abstract description 31
- 239000004568 cement Substances 0.000 claims abstract description 25
- 238000005260 corrosion Methods 0.000 claims abstract description 19
- 230000007797 corrosion Effects 0.000 claims abstract description 19
- 238000010521 absorption reaction Methods 0.000 claims abstract description 16
- 239000011449 brick Substances 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 27
- 239000000020 Nitrocellulose Substances 0.000 claims description 22
- 229920001220 nitrocellulos Polymers 0.000 claims description 22
- 239000011248 coating agent Substances 0.000 claims description 17
- 238000000576 coating method Methods 0.000 claims description 17
- 238000002360 preparation method Methods 0.000 claims description 16
- 239000000853 adhesive Substances 0.000 claims description 9
- 230000001070 adhesive effect Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- 239000002689 soil Substances 0.000 claims description 3
- 230000002265 prevention Effects 0.000 abstract description 4
- 229920000742 Cotton Polymers 0.000 abstract 5
- 230000004888 barrier function Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000003313 weakening effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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
-
- 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
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/14—Producing shaped prefabricated articles from the material by simple casting, the material being neither forcibly fed nor positively compacted
- B28B1/16—Producing shaped prefabricated articles from the material by simple casting, the material being neither forcibly fed nor positively compacted for producing layered articles
-
- 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
Abstract
The invention mainly provides a sound-insulation and thermal-insulation hollow brick and a manufacturing method. The sound-insulation and thermal-insulation hollow brick mainly comprises a holed sound absorbing layer, a concrete sound attenuation layer, Ao Feichi sound insulation cotton, a porous drainage layer, a sound insulation and damping layer, a fireproof cotton thermal insulation layer and a gravel and cement corrosion resisting layer, wherein the holed sound absorbing layer is the outermost layer of the sound-insulation and thermal-insulation hollow brick, sound-absorption round holes are orderly formed in the holed sound absorbing layer, the concrete sound attenuation layer and the Ao Feichi sound insulation cotton are arranged on one side of the holed sound absorbing layer, the porous drainage layer is arranged between the Ao Feichi sound insulation cotton and the sound insulation and damping layer, the fireproof cotton thermal insulation layer is arranged on one side of the sound insulation and damping layer, and the gravel and cement corrosion resisting layer is arranged on the outermost layer of the sound-insulation and thermal-insulation hollow brick. The sound-insulation and thermal-insulation hollow brick has the characteristics of being reasonable in structure, low in cost, light in weight, easy in drainage of water in the brick thermal insulation, and capable of sound insulation and fire prevention.
Description
Technical field:
The present invention relates to a kind of hollow brick, particularly relate to a kind of sound-insulating hollow brick and preparation method.
Background technology:
Although noise has become the formidable enemy in daily life, but deal with very difficult, as having nothing for it except restraining oneself, in fact according to current technology, through the effect of sound insulation, some are through the low frequency noise of the solid conduction such as body of wall, pipeline, generally need the vibrations approach cutting off noise completely, whole sound insulation process is done in indoor, when Specific construction selection, applicable sound insulation materials must be selected according to the situation at scene, not only require environmental protection, also to select the conventional material meeting national standard, as lightgage steel joist or gypsum plank etc. as far as possible.
The Principles of Acoustics of noise barrier will leave cavity between original wall body and noise barrier, or be called cushion coat, such noise can weaken through space, distance, then noise changes into heat energy by the micropore in damping material, thus reach further reduction, so the effect of insulation can also be had while having done sound insulation.The Principles of Acoustics of noise barrier will leave cavity between original wall body and noise barrier, or be called cushion coat, such noise can weaken through space, distance, then noise changes into heat energy by the micropore in damping material, thus reach further reduction, so can also there be the effect of insulation while having done sound insulation, but at present for architectural, having the brick that sound-insulating builds a wall also does not have.
Summary of the invention:
In order to solve the problem, the invention provides easy, the low cost of manufacture of a kind of manufacture, also there is a kind of sound-insulating hollow brick of better sound insulation and heat insulation effect and the technical scheme of preparation method simultaneously.
A kind of sound-insulating hollow brick and preparation method, mainly comprise perforated sound-absorbing layer, Sound-proof material, porous drainage blanket, sound-proof damping layer, anti-guncotton insulation layer go at express speed in concrete noise reduction layer, Australia, sandstone cement corrosion-resistant coating, the side of described sound-insulating hollow brick is provided with perforated sound-absorbing layer, neat this circular sound-absorption hole of arrangement on perforated sound-absorbing layer, the side of described perforated sound-absorbing layer is provided with concrete noise reduction layer, and concrete noise reduction layer and perforated sound-absorbing layer fit tightly.
As preferably, the side of concrete noise reduction layer is provided with Australia and goes at express speed Sound-proof material, porous drainage blanket, sound-proof damping layer, and porous drainage blanket is located at Australia and goes at express speed between Sound-proof material and sound-proof damping layer, and on described porous drainage blanket, surrounding is covered with circular row water hole.
As preferably, sound-proof damping layer side is provided with anti-guncotton insulation layer, is provided with sandstone cement corrosion-resistant coating in anti-guncotton insulation layer side.
As preferably, the long 35cm of brick body of sound-insulating hollow brick, wide 20cm, high 25cm.
As preferably, perforated sound-absorbing thickness 3cm, on perforated sound-absorbing layer, the diameter of circular sound-absorption hole is 1.5cm.
As preferably, porous draining thickness 5cm, the circular sound-absorption hole diameter on porous drainage blanket is 1cm, described Austria go at express speed Sound-proof material, sound-proof damping layer, anti-guncotton insulation layer, sandstone cement corrosion-resistant coating thickness be 3cm.
As preferably, the manufacture method of a kind of sound-insulating hollow brick and preparation method, is characterized in that: the preparation method of sound-insulating hollow brick comprises the following steps:
A, first adopt cement, yellow sand, dregs concreting noise reduction layer, and concrete noise reduction layer to build thickness be 3cm;
B, inside concrete noise reduction layer, build perforated sound-absorbing layer, and perforated sound-absorbing layer is close to concrete noise reduction layer, building thickness is 3cm, neatly offers circular sound-absorption hole afterwards on perforated sound-absorbing layer, and circular sound-absorption hole diameter is 1.5cm;
C, lay Austria to go at express speed Sound-proof material outside concrete noise reduction layer, Austria's Sound-proof material thickness that goes at express speed is 2cm, adheres to the thick porous drainage blanket of 5cm, porous drainage blanket is offered the circular row water hole that diameter is 1cm outside Sound-proof material goes at express speed in Austria by corrosion-preventive adhesive;
D, outside porous drainage blanket, adhere to sound-proof damping layer by corrosion-preventive adhesive, and the thickness of sound-proof damping layer is 4cm;
E, outside sound-proof damping layer, lay anti-guncotton insulation layer, anti-guncotton insulation layer thickness is 2cm, builds sandstone cement corrosion-resistant coating afterwards outside anti-guncotton insulation layer by sandy soil, cement and corrosion-preventive adhesive, and sandstone cement corrosion-resistant coating thickness is 4cm.
Beneficial effect of the present invention is:
(1) simple, the low cost of manufacture of structural principle of the present invention is provided with perforated sound-absorbing layer at the most streak of sound-insulating hollow brick, circular sound-absorption hole is covered with on perforated sound-absorbing layer, circular for absorbing sound, sound rebounds by effective prevention body of wall, be provided with concrete noise reduction layer and Australia to go at express speed Sound-proof material in perforated sound-absorbing layer side, this two-layer sound for coming in circular hole weakens and absorbs, and dually weakens sound.
(2) go at express speed to be provided with porous drainage blanket between Sound-proof material and sound-proof damping layer in Australia, porous drainage blanket has a lot of circular hole, circular hole is used for weakening further and absorbing sound, the small sircle hole that porous water drainage enabling layer is a lot of can drain because rainwater weather causes the ponding of brick body inside, be provided with anti-guncotton insulation layer and sandstone cement corrosion-resistant coating in sound-proof damping layer side, sandstone cement corrosion-resistant coating is for preventing exterior wall due to the corrosional corruption of rainwater.
Accompanying drawing illustrates:
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of porous drainage blanket of the present invention.
Detailed description of the invention:
For can definitely goal of the invention of the present invention, technical scheme and advantage clearly, be described in further detail embodiments of the present invention below in conjunction with accompanying drawing.
As Figure 1-Figure 2, a kind of sound-insulating hollow brick and preparation method, the long 35cm of brick body of sound-insulating hollow brick, wide 20cm, high 25cm, it mainly comprises perforated sound-absorbing layer 1, concrete noise reduction layer 2, Australia goes at express speed Sound-proof material 3, porous drainage blanket 4, sound-proof damping layer 5, anti-guncotton insulation layer 7, sandstone cement corrosion-resistant coating 8, the side of described sound-insulating hollow brick is provided with perforated sound-absorbing layer 1, neat this circular sound-absorption hole 6 of arrangement on perforated sound-absorbing layer 1, circular sound-absorption hole 6 is for absorbing sound, sound rebounds by effective prevention body of wall, be provided with concrete noise reduction layer 2 and Australia to go at express speed Sound-proof material 3 in perforated sound-absorbing layer 1 side, this two-layer sound for coming in circular hole weakens and absorbs, dually weaken sound, the side of described perforated sound-absorbing layer 1 is provided with concrete noise reduction layer 2, concrete noise reduction layer 2 and perforated sound-absorbing layer 1 fit tightly.
Be provided with Australia to go at express speed Sound-proof material 3 in the side of concrete noise reduction layer 2, porous drainage blanket 4, sound-proof damping layer 5, porous drainage blanket 4 is located at Australia and goes at express speed between Sound-proof material 3 and sound-proof damping layer 5, on described porous drainage blanket 4, surrounding is covered with circular row water hole 9, porous drainage blanket 4 has a lot of circular hole 9, circular hole 9 is for weakening further and absorbing sound, porous drainage blanket 4 above a lot of small sircle holes 9 can drain because rainwater weather causes the ponding of brick body inside, described sound-proof damping layer 5 side is provided with anti-guncotton insulation layer 7, sandstone cement corrosion-resistant coating 8 is provided with in anti-guncotton insulation layer 7 side, sandstone cement corrosion-resistant coating 8 is for preventing exterior wall due to the corrosional corruption of rainwater.
Preparation method of the present invention comprises the following steps:
A, first adopt cement, yellow sand, dregs concreting noise reduction layer 2, and concrete noise reduction layer 2 to build thickness be 3cm;
B, inside concrete noise reduction layer 2, build perforated sound-absorbing layer 1, and perforated sound-absorbing layer 1 is close to concrete noise reduction layer 2, building thickness is 3cm, neatly offers circular sound-absorption hole 6 afterwards on perforated sound-absorbing layer 1, and circular sound-absorption hole 6 diameter is 1.5cm;
C, outside concrete noise reduction layer 2, lay Austria to go at express speed Sound-proof material 3, Austria's Sound-proof material 3 thickness that goes at express speed is 2cm, outside Sound-proof material 3 goes at express speed in Austria, adhere to the thick porous drainage blanket 4 of 5cm by corrosion-preventive adhesive, porous drainage blanket 4 is offered the circular row water hole 9 that diameter is 1cm;
D, outside porous drainage blanket 4, adhere to sound-proof damping layer 5 by corrosion-preventive adhesive, and the thickness of sound-proof damping layer 5 is 4cm;
E, outside sound-proof damping layer 5, lay anti-guncotton insulation layer 7, anti-guncotton insulation layer 7 thickness is 2cm, outside anti-guncotton insulation layer 7, build sandstone cement corrosion-resistant coating 8 by sandy soil, cement and corrosion-preventive adhesive afterwards, sandstone cement corrosion-resistant coating 8 thickness is 4cm.
The present invention manufactures simply, and low cost of manufacture, perforated sound-absorbing layer is provided with at the skin of sound-insulating hollow brick, circular for absorbing sound, sound rebounds by effective prevention brick body, be provided with Australia in brick body to go at express speed Sound-proof material, porous drainage blanket, sound-proof damping layer, anti-guncotton insulation layer, can effective sound-insulating.
Above-described embodiment is preferred embodiment of the present invention; it is not the restriction to technical solution of the present invention; as long as without the technical scheme that creative work can realize on the basis of above-described embodiment, all should be considered as falling within the scope of the rights protection of patent of the present invention.
Claims (7)
1. a sound-insulating hollow brick and preparation method, mainly comprise perforated sound-absorbing layer (1), concrete noise reduction layer (2), Australia goes at express speed Sound-proof material (3), porous drainage blanket (4), sound-proof damping layer (5), anti-guncotton insulation layer (7), sandstone cement corrosion-resistant coating (8), it is characterized in that: the side of described sound-insulating hollow brick is provided with perforated sound-absorbing layer (1), in upper neat this circular sound-absorption hole (6) of arrangement of perforated sound-absorbing layer (1), the side of described perforated sound-absorbing layer (1) is provided with concrete noise reduction layer (2), concrete noise reduction layer (2) and perforated sound-absorbing layer (1) fit tightly.
2. a kind of sound-insulating hollow brick according to claim 1 and preparation method, it is characterized in that: the side of described concrete noise reduction layer (2) is provided with Australia and goes at express speed Sound-proof material (3), porous drainage blanket (4), sound-proof damping layer (5), porous drainage blanket (4) is located at Australia and goes at express speed between Sound-proof material (3) and sound-proof damping layer (5), and the upper surrounding of described porous drainage blanket (4) is covered with circular row water hole (9).
3. a kind of sound-insulating hollow brick according to claim 1 and preparation method, it is characterized in that: described sound-proof damping layer (5) side is provided with anti-guncotton insulation layer (7), be provided with sandstone cement corrosion-resistant coating (8) in anti-guncotton insulation layer (7) side.
4. a kind of sound-insulating hollow brick according to claim 1 and preparation method, is characterized in that: the long 35cm of brick body of described sound-insulating hollow brick, wide 20cm, high 25cm.
5. a kind of sound-insulating hollow brick according to claim 1 and preparation method, is characterized in that: the thick 3cm of described perforated sound-absorbing layer (1), and the diameter of the upper circular sound-absorption hole (6) of perforated sound-absorbing layer (1) is 1.5cm.
6. a kind of sound-insulating hollow brick according to claim 1 and 2 and preparation method, it is characterized in that: the thick 5cm of described porous drainage blanket (4), circular sound-absorption hole (6) diameter on porous drainage blanket (4) is 1cm, described Austria go at express speed Sound-proof material (3), sound-proof damping layer (5), anti-guncotton insulation layer (7), sandstone cement corrosion-resistant coating (8) thickness be 3cm.
7. the manufacture method of a kind of sound-insulating hollow brick according to claim 1 and preparation method, is characterized in that: the preparation method of sound-insulating hollow brick comprises the following steps:
A, first adopt cement, yellow sand, dregs concreting noise reduction layer (2), and concrete noise reduction layer (2) to build thickness be 3cm;
B, concrete noise reduction layer (2) inner side build perforated sound-absorbing layer (1), and perforated sound-absorbing layer (1) is close to concrete noise reduction layer (2), building thickness is 3cm, on perforated sound-absorbing layer (1), neatly offer circular sound-absorption hole (6) afterwards, and circular sound-absorption hole (6) diameter is 1.5cm;
C, lay Austria in concrete noise reduction layer (2) outside and to go at express speed Sound-proof material (3), Austria's Sound-proof material (3) thickness that goes at express speed is 2cm, go at express speed Sound-proof material (3) outside by the thick porous drainage blanket (4) of corrosion-preventive adhesive adhesion 5cm in Austria, porous drainage blanket (4) is offered the circular row water hole (9) that diameter is 1cm;
D, adhere to sound-proof damping layer (5) in porous drainage blanket (4) outside by corrosion-preventive adhesive, and the thickness of sound-proof damping layer (5) is 4cm;
E, sound-proof damping layer (5) outside lay anti-guncotton insulation layer (7), anti-guncotton insulation layer (7) thickness is 2cm, build sandstone cement corrosion-resistant coating (8) in anti-guncotton insulation layer (7) outside by sandy soil, cement and corrosion-preventive adhesive afterwards, sandstone cement corrosion-resistant coating (8) thickness is 4cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610108012.5A CN105544844B (en) | 2016-02-26 | 2016-02-26 | A kind of sound-insulating hollow brick and preparation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610108012.5A CN105544844B (en) | 2016-02-26 | 2016-02-26 | A kind of sound-insulating hollow brick and preparation method |
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| CN105544844A true CN105544844A (en) | 2016-05-04 |
| CN105544844B CN105544844B (en) | 2017-10-03 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107842170A (en) * | 2017-11-23 | 2018-03-27 | 中建局集团第五建筑有限公司 | Light-weight aggregate sound insulation ground and its construction method |
| CN110700478A (en) * | 2019-10-19 | 2020-01-17 | 安徽昆蒙新型建材有限公司 | Hollow brick's sound insulation construction |
| CN111559885A (en) * | 2020-05-28 | 2020-08-21 | 保定市桥与果新材料科技有限公司 | Energy-saving heat-insulating building wall |
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| CN103696501A (en) * | 2014-01-06 | 2014-04-02 | 北京灵众博通科技有限公司 | Inner-outer sound-absorbing color plate |
| CN203654501U (en) * | 2013-12-19 | 2014-06-18 | 江苏长青艾德利装饰材料有限公司 | Sound-absorbing and heat-preserving composite board |
| CN203821743U (en) * | 2014-03-04 | 2014-09-10 | 苏州科技学院 | Sound-proof decorating plate |
| CN204531138U (en) * | 2015-04-21 | 2015-08-05 | 福建安固新型环保建材有限公司 | A kind of exterior wall building block |
| DE102014007660A1 (en) * | 2014-05-26 | 2015-12-17 | DMG Gustke GmbH | Sound absorption means, in particular for arrangement in the wall and / or ceiling area of a room or a hall for the production / realization of a room divider or sound absorption device or Schalldämpfungslement |
| EP2963199A1 (en) * | 2014-07-01 | 2016-01-06 | akustik & innovation gmbh | Sound insulation panel |
-
2016
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS5224352Y2 (en) * | 1972-12-23 | 1977-06-02 | ||
| KR101184345B1 (en) * | 2012-07-03 | 2012-09-24 | 주식회사 케이에스알 | The noise insulation proof panel |
| CN203654501U (en) * | 2013-12-19 | 2014-06-18 | 江苏长青艾德利装饰材料有限公司 | Sound-absorbing and heat-preserving composite board |
| CN103696501A (en) * | 2014-01-06 | 2014-04-02 | 北京灵众博通科技有限公司 | Inner-outer sound-absorbing color plate |
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| DE102014007660A1 (en) * | 2014-05-26 | 2015-12-17 | DMG Gustke GmbH | Sound absorption means, in particular for arrangement in the wall and / or ceiling area of a room or a hall for the production / realization of a room divider or sound absorption device or Schalldämpfungslement |
| EP2963199A1 (en) * | 2014-07-01 | 2016-01-06 | akustik & innovation gmbh | Sound insulation panel |
| CN204531138U (en) * | 2015-04-21 | 2015-08-05 | 福建安固新型环保建材有限公司 | A kind of exterior wall building block |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107842170A (en) * | 2017-11-23 | 2018-03-27 | 中建局集团第五建筑有限公司 | Light-weight aggregate sound insulation ground and its construction method |
| CN110700478A (en) * | 2019-10-19 | 2020-01-17 | 安徽昆蒙新型建材有限公司 | Hollow brick's sound insulation construction |
| CN111559885A (en) * | 2020-05-28 | 2020-08-21 | 保定市桥与果新材料科技有限公司 | Energy-saving heat-insulating building wall |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105544844B (en) | 2017-10-03 |
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Inventor after: Liu Lin Inventor after: Li Huize Inventor after: Wei Keshan Inventor after: Hao Jun Inventor after: Zhao Xiuling Inventor after: Ma Li Inventor before: Liu Lin Inventor before: Li Huize Inventor before: Wei Keshan |
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Inventor after: Liu Lin Inventor after: Li Huize Inventor after: Wei Keshan Inventor after: Hao Jun Inventor after: Zhao Xiuling Inventor after: Ma Li Inventor before: Liu Lin Inventor before: Li Huize Inventor before: Wei Keshan Inventor before: Hao Jun Inventor before: Zhao Xiuling Inventor before: Ma Li |
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Denomination of invention: Sound-insulation and thermal-insulation hollow brick and manufacturing method Effective date of registration: 20181207 Granted publication date: 20171003 Pledgee: Bozhou financing Company Limited by Guarantee Pledgor: ANHUI KUNMENG NEW TYPE BUILDING MATERIAL CO., LTD. Registration number: 2018340000707 |
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Date of cancellation: 20200601 Granted publication date: 20171003 Pledgee: Bozhou financing Company Limited by Guarantee Pledgor: ANHUI KUNMENG NEW BUILDING MATERIAL Co.,Ltd. Registration number: 2018340000707 |
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