CN111851824B - Low-damage light steel structure fireproof combined floor system in fire environment - Google Patents
Low-damage light steel structure fireproof combined floor system in fire environment Download PDFInfo
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- CN111851824B CN111851824B CN202010749157.XA CN202010749157A CN111851824B CN 111851824 B CN111851824 B CN 111851824B CN 202010749157 A CN202010749157 A CN 202010749157A CN 111851824 B CN111851824 B CN 111851824B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 112
- 239000010959 steel Substances 0.000 title claims abstract description 112
- 239000011347 resin Substances 0.000 claims abstract description 37
- 229920005989 resin Polymers 0.000 claims abstract description 37
- 238000005253 cladding Methods 0.000 claims abstract description 30
- 239000002250 absorbent Substances 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000002131 composite material Substances 0.000 claims abstract description 14
- 238000009413 insulation Methods 0.000 claims abstract description 12
- 238000010521 absorption reaction Methods 0.000 claims abstract description 11
- 239000012774 insulation material Substances 0.000 claims abstract description 6
- 239000010410 layer Substances 0.000 claims description 64
- 230000002745 absorbent Effects 0.000 claims description 26
- 238000010079 rubber tapping Methods 0.000 claims description 14
- 238000004321 preservation Methods 0.000 claims description 9
- 230000009970 fire resistant effect Effects 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 239000011241 protective layer Substances 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims description 4
- 229920006395 saturated elastomer Polymers 0.000 claims description 4
- 230000008020 evaporation Effects 0.000 abstract description 3
- 238000001704 evaporation Methods 0.000 abstract description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- PZZYQPZGQPZBDN-UHFFFAOYSA-N aluminium silicate Chemical compound O=[Al]O[Si](=O)O[Al]=O PZZYQPZGQPZBDN-UHFFFAOYSA-N 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
- E04B5/10—Load-carrying floor structures formed substantially of prefabricated units with metal beams or girders, e.g. with steel lattice girders
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/94—Protection against other undesired influences or dangers against fire
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
- E04B9/06—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
- E04B9/06—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members
- E04B9/12—Connections between non-parallel members of the supporting construction
- E04B9/14—Connections between non-parallel members of the supporting construction all the members being discontinuous and laying at least partly in the same plane
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
- E04B9/22—Connection of slabs, panels, sheets or the like to the supporting construction
-
- 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
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/90—Passive houses; Double facade technology
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Acoustics & Sound (AREA)
- Building Environments (AREA)
Abstract
The invention discloses a low-damage light steel structure fireproof composite floor system in a fire environment, which sequentially comprises a floor layer, a light steel keel framework layer, a cladding keel layer and a ceiling layer from top to bottom, wherein the light steel keel framework layer is composed of a plurality of light steel bearing keels which are arranged in parallel at equal intervals and two light steel guide rails, two ends of each light steel bearing keel are respectively and fixedly connected with the two light steel guide rails in a vertical mode, the cross section of each light steel bearing keel is completely or partially closed, a high-water-absorption resin heat-insulation layer is filled in a cavity of the closed part, heat-insulation materials are filled between every two adjacent light steel bearing keels, the light steel keel framework layer is respectively and fixedly connected with the floor layer and the cladding keel layer, and the cladding keel layer is fixedly connected with the ceiling layer. The invention designs the high-molecular water-absorbent resin heat-insulating layer, dissipates the heat of nearby structures through water evaporation, reduces the damage of fire to a steel structure, and has the characteristics of light self weight of the structure, less steel consumption, fire resistance, heat insulation and the like.
Description
Technical Field
The invention belongs to the technical field of civil engineering, and particularly relates to a low-damage light steel structure fireproof composite floor system in a fire environment.
Background
The steel structure has good economic and technical superiority, low carbon, energy conservation, environmental protection and reusability, can better adapt to and meet the current national economic construction requirements of China. Wherein the light steel structure uses cold forming steel more, compares with the traditional steel construction that uses hot rolling shaped steel, can obtain more reasonable cross sectional shape through cold working, alleviates the structure dead weight. However, light steel structures generally have poor fire resistance. The fireproof protection measure of the profiled steel sheet composite floor system structure in the prior art is usually fireproof paint, however, the floor area is usually large, the method has large engineering quantity and high cost, and the fireproof paint has the problem of aging possibly and is difficult to meet the fireproof requirement of the multi-layer building structure in China.
Disclosure of Invention
The invention aims to provide a low-damage light steel structure fireproof composite floor system in a fire environment, which has good fireproof performance and is suitable for a multi-story and high-rise building structure.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: the low-damage light steel structure fireproof composite floor system in the fire environment sequentially comprises a floor layer, a light steel keel framework layer, a covering keel layer and a ceiling layer from top to bottom, wherein the light steel keel framework layer is composed of a plurality of light steel bearing keels which are arranged in parallel at equal intervals and two light steel guide rails, two ends of each light steel bearing keel are respectively and fixedly connected with the two light steel guide rails in a vertical mode, the cross section of each light steel bearing keel is completely or partially closed, a high-water-absorption resin heat insulation layer is filled in a cavity of the closed part, a heat insulation material is filled between every two adjacent light steel bearing keels, the light steel keel framework layer is respectively and fixedly connected with the floor layer and the covering keel layer, and the covering keel layer is fixedly connected with the ceiling layer.
Preferably, the super absorbent resin heat preservation layer is filled with anhydrous dry super absorbent resin, and the light steel bearing keel is provided with water injection holes.
Preferably, the super absorbent resin insulation layer is filled with super absorbent resin with saturated water absorption, wherein the mass ratio of water to the super absorbent resin is not less than 20:1
Preferably, the inner wall of the cavity filled with the super absorbent resin heat-insulating layer is coated with a waterproof protective layer.
Preferably, the light steel bearing keel with the completely closed cross section is a square steel pipe, and the pipe wall is 0.4-6 mm.
Preferably, the light steel bearing keel with the partially closed cross section is a hollow flange channel steel, the cavities of the closed part are respectively positioned at two ends of the keel web plate at the same side, and the cavity at least at one side is filled with a super absorbent resin heat preservation layer.
Preferably, the cladding keel layer is composed of a plurality of cladding keels which are arranged in parallel at equal intervals, and the cross section of each cladding keel is of a hat-shaped structure.
Preferably, the suspended ceiling plate layer is formed by splicing a plurality of suspended ceiling plates, and the suspended ceiling plate splicing gap is located at the groove of the cladding keel.
Preferably, the distance between two adjacent light steel bearing keels is 400-600 mm, and the distance between two adjacent cladding keels is 300-600 mm.
Preferably, the light steel bearing keel is fixedly connected with the floor layer and the horizontal flange at the upper part of the cladding keel through self-tapping screws respectively, the light steel guide rail is fixedly connected with the floor layer and the horizontal flange at the upper part of the cladding keel through self-tapping screws respectively, and the groove at the bottom of the cladding keel is fixedly connected with the ceiling plate through self-tapping screws.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention has excellent fire resistance, and the high-molecular water-absorbent resin heat-insulating layer dissipates the heat of nearby structures through water evaporation, thereby reducing the damage of fire to steel structures.
2. The fire-resistant measures of the invention are located inside the structure and have the characteristics of space saving and beautiful surface.
3. The invention adopts the light steel keel framework, has light self weight of the structure, saves steel consumption and is convenient and fast to construct.
Drawings
Fig. 1 is a schematic structural view of a low-damage light steel structure fire-resistant composite floor system in a fire environment according to embodiment 1 of the present invention;
FIG. 2 is a schematic view of the connection of a light steel load keel to a light steel guide rail;
FIG. 3 is a right side view of FIG. 1;
FIG. 4 is a schematic view of the attachment of the cladding keel to the ceiling tile;
figure 5 is a schematic cross-sectional view of a light steel load keel according to example 2 of the invention;
figure 6 is a cross-sectional view of a light steel load keel of example 3 of the invention.
In the figure, 1-light steel bearing keel, 2-super absorbent resin heat insulation layer, 3-waterproof protective layer, 4-self-tapping screw, 5-cladding keel, 501-horizontal flange, 502-groove, 6-floor layer, 7-heat insulation material, 8-ceiling board, 9-splicing gap, 10-cavity and 11-light steel guide rail.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples.
Example 1
As shown in fig. 1 to 4, the invention provides a low-damage light steel structure fireproof composite floor system in a fire environment, which sequentially comprises a floor system layer 6, a light steel keel framework layer, a cladding keel layer and a ceiling slab layer from top to bottom. The light steel keel framework layer is composed of a plurality of light steel bearing keels 1 and two light steel guide rails 11, the light steel bearing keels 1 are arranged in parallel at equal intervals, the interval is preferably 400-600 mm, the cross sections of the light steel guide rails 11 are not closed rectangles, two ends of each light steel bearing keel 1 are respectively inserted into the two light steel guide rails 11 and are respectively and vertically and fixedly connected with the two light steel guide rails 11, the cross section of each light steel bearing keel 1 is a completely closed rectangle, a square steel pipe is preferably used as each light steel bearing keel 1 in the embodiment, the pipe wall of each square steel pipe is 0.4-6 mm, a cavity 10 of a closed part is filled with a high-water-absorption resin heat-insulation layer 2, the high-water-absorption resin heat-insulation layer 2 is composed of dry high-water-absorption resin, the inner wall of the cavity 10 is coated with a water penetration prevention protective layer 3, and a heat-insulation material 7 is partially, Glass cotton, rock wool, aluminium silicate cotton etc. seted up the water injection hole on the light steel bears fossil fragments 1, through water injection hole to the high water absorption resin heat preservation 2 water injection. The clad keel layer comprises clad keels 5 that parallel equidistant range was arranged, and the interval is preferred between 300mm ~ 600mm, clad keel 5's cross section is the hat shape structure, and the upper portion both sides are equipped with the outside horizontal flange 501 that extends of symmetry promptly, and the bottom is recess 502, the furred ceiling layer is become by the concatenation of a plurality of furred ceiling board 8, light steel bears fossil fragments 1 respectively with floor layer 6, clad keel's horizontal flange 501 through self-tapping screw 4 fixed connection, light steel guide rail 11 respectively with floor layer 6, clad keel 5 upper portion horizontal flange 501 through self-tapping screw 4 fixed connection, clad keel recess 502 bottom with furred ceiling 8 passes through self-tapping screw 4 fixed connection, and the concatenation gap 9 of furred ceiling board 8 is located clad keel recess 502 department.
The super absorbent resin in this embodiment keeps dry state under the daily condition, and when the conflagration breaing out, rivers pass through the fire control pipeline and pour into super absorbent resin heat preservation 2, thereby super absorbent resin heat preservation 2 can store a large amount of moisture and play the fire-resistant effect.
The heat insulation material 7 is located inside the structure in the embodiment, so that the space is saved, and the appearance is more attractive.
In the construction engineering, firstly, a plurality of square steel tubes which are pre-made with super absorbent resin in the cavity are inserted into the light steel guide rail 11 and keep vertical to the light steel guide rail 11, then the square steel tubes are connected with the upper flange and the lower flange of the light steel guide rail 11 through self-tapping screws 4, and the self-tapping screws 4 are positioned in the centers of the overlapped parts of the square steel tubes and the upper flange and the lower flange of the light steel guide rail 11. After the light steel keel framework layer is constructed, the cladding keel 5 is laid below the square steel tube, the cladding keel 5 is vertical to the square steel tube, and the contact surface of the lower surface of the square steel tube and the horizontal flange 501 of the cladding keel is connected by using the self-tapping screw 4. Then, the floor layer 6 and the ceiling board 8 are respectively connected with the light steel keel framework layer and the middle layer of the cladding keel square steel tube through self-tapping screws 4, wherein the splicing gap 9 of the ceiling board 8 is positioned at the cladding keel groove 502. The portion between the adjacent square steel pipes is filled with the heat insulating material 7.
Example 2
Different from the embodiment 1, as shown in fig. 5, the section of the light steel bearing keel 1 is a hollow flange channel steel, two cavities 10 are respectively located at two ends of the keel web at the same side, the two cavities 10 are filled with super absorbent resin heat preservation layers 2, each super absorbent resin heat preservation layer 2 is composed of super absorbent resin saturated in water, and the inner wall of the cavity 10 filled with the super absorbent resin heat preservation layer 2 is coated with a water penetration prevention protection layer 3.
The super absorbent resin in the embodiment is in a saturated adsorption state in daily conditions, and the mass ratio of water to the super absorbent resin is not less than 20: 1. In daily use, the super absorbent resin heat-insulating layer can play a role in regulating temperature; when a fire breaks out, the heat of nearby structures is dissipated through water evaporation, and the damage of the fire to the steel structure is reduced.
Example 3
Different from the embodiment 2, as shown in fig. 6, a cavity 10 of the light steel load-bearing keel 1 is filled with the super absorbent resin insulation layer 2, and the inner wall of the cavity 10 filled with the super absorbent resin insulation layer 2 is coated with the waterproof protective layer 3.
Claims (8)
1. The utility model provides a fire-resistant combination superstructure of light steel construction of low damage under fire hazard environment which characterized in that: the light steel keel structure comprises a floor layer (6), a light steel keel framework layer, a cladding keel layer and a ceiling layer in sequence from top to bottom, wherein the light steel keel framework layer is composed of a plurality of light steel bearing keels (1) which are arranged in parallel at equal intervals and two light steel guide rails (11), two ends of each light steel bearing keel (1) are respectively and fixedly connected with the two light steel guide rails (11) in a vertical mode, the cross sections of the light steel bearing keels (1) are completely or partially closed, a high-water-absorption resin heat-insulation layer (2) is filled in a cavity (10) of the closed part, a heat-insulation material (7) is filled between every two adjacent light steel bearing keels (1), the light steel keel framework layer is respectively and fixedly connected with the floor layer (6) and the cladding keel layer, and the cladding keel layer is fixedly connected with the ceiling layer;
the high water absorption resin heat insulation layer (2) is filled with anhydrous dry high water absorption resin, and the light steel bearing keel (1) is provided with a water injection hole;
or the super absorbent resin heat insulation layer (2) is filled with super absorbent resin with saturated water absorption, wherein the mass ratio of water to the super absorbent resin is not lower than 20: 1.
2. The low-damage light steel structure fireproof composite floor system in the fire environment according to claim 1, wherein: the inner wall of the cavity (10) filled with the super absorbent resin heat-insulating layer (2) is coated with a waterproof protective layer (3).
3. The low-damage light steel structure fireproof composite floor system in the fire environment according to claim 1, wherein: the light steel bearing keel (1) with the completely closed cross section is a square steel pipe, and the thickness of the pipe wall is 0.4 mm-6 mm.
4. The low-damage light steel structure fireproof composite floor system in the fire environment according to claim 1, wherein: the light steel bearing keel (1) with the partially closed section is a hollow flange channel steel, the cavities (10) of the closed part are respectively positioned at two ends of the keel web plate at the same side, and the cavities (10) at least one side are filled with the super absorbent resin heat preservation layer (2).
5. The low-damage light steel structure fire-resistant composite floor system in a fire environment as claimed in any one of claims 1 to 4, wherein: the cladding keel layer is composed of a plurality of cladding keels (5) which are arranged in parallel at equal intervals, and the cross section of each cladding keel (5) is of a hat-shaped structure.
6. The low-damage light steel structure fireproof composite floor system in the fire environment according to claim 5, wherein: the suspended ceiling plate layer is formed by splicing a plurality of suspended ceiling plates (8), and splicing gaps (9) of the suspended ceiling plates (8) are located at grooves (502) in the bottom of the cladding keel.
7. The low-damage light steel structure fireproof composite floor system in the fire environment according to claim 5, wherein: the distance between two adjacent light steel bearing keels (1) is 400-600 mm, and the distance between two adjacent cladding keels (5) is 300-600 mm.
8. The low-damage light steel structure fireproof composite floor system in the fire environment according to claim 5, wherein: the light steel bearing keel (1) is fixedly connected with a floor layer (6) and a cladding keel (5) through tapping screws (4) respectively, the light steel guide rail (11) is fixedly connected with the floor layer (6) and a cladding keel (5) upper horizontal flange (501) through tapping screws (4), and a bottom groove (502) of the cladding keel (5) is fixedly connected with a ceiling plate (8) through tapping screws (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010749157.XA CN111851824B (en) | 2020-07-30 | 2020-07-30 | Low-damage light steel structure fireproof combined floor system in fire environment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010749157.XA CN111851824B (en) | 2020-07-30 | 2020-07-30 | Low-damage light steel structure fireproof combined floor system in fire environment |
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| CN111851824B true CN111851824B (en) | 2021-05-14 |
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| CN115030387B (en) * | 2022-04-28 | 2024-03-01 | 上海蓝天房屋装饰工程有限公司 | Fitment board and furred ceiling assembly structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS60183141A (en) * | 1984-02-29 | 1985-09-18 | 京都麻業株式会社 | Water-absorbing sheet |
| CN1775499A (en) * | 2004-11-17 | 2006-05-24 | 魏国扬 | Method for manufacturing thermal-insulated flame-retarded and heat-proof building material element |
| JP4927362B2 (en) * | 2005-08-11 | 2012-05-09 | 昭和電線デバイステクノロジー株式会社 | Non-combustible sound absorbing material and structure using the same |
| CN106082922B (en) * | 2016-08-23 | 2018-03-30 | 张振华 | A kind of hollow construction material of graininess and preparation method thereof |
| CN106930495A (en) * | 2017-05-10 | 2017-07-07 | 马鞍山市润启新材料科技有限公司 | A kind of Novel building decoration plank |
| CN210507857U (en) * | 2019-07-27 | 2020-05-12 | 巢湖鹏远金属焊管有限公司 | Fire prevention heat preservation safety type steel construction |
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