CN211850600U - Structure suitable for fireproof exhaust passage plastering finish coat - Google Patents
Structure suitable for fireproof exhaust passage plastering finish coat Download PDFInfo
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- CN211850600U CN211850600U CN201921915048.XU CN201921915048U CN211850600U CN 211850600 U CN211850600 U CN 211850600U CN 201921915048 U CN201921915048 U CN 201921915048U CN 211850600 U CN211850600 U CN 211850600U
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- layer
- exhaust passage
- fireproof
- wire mesh
- plastering
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 39
- 239000010959 steel Substances 0.000 claims abstract description 39
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 30
- 239000004744 fabric Substances 0.000 claims abstract description 25
- 239000003365 glass fiber Substances 0.000 claims abstract description 25
- 239000011083 cement mortar Substances 0.000 claims abstract description 19
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 16
- 238000009413 insulation Methods 0.000 claims abstract description 4
- 238000004321 preservation Methods 0.000 claims description 18
- 239000003795 chemical substances by application Substances 0.000 claims description 17
- 230000002265 prevention Effects 0.000 claims description 4
- 238000005336 cracking Methods 0.000 abstract description 21
- 239000010410 layer Substances 0.000 description 62
- 238000010276 construction Methods 0.000 description 13
- 238000005507 spraying Methods 0.000 description 7
- 230000007123 defense Effects 0.000 description 4
- 229910001335 Galvanized steel Inorganic materials 0.000 description 3
- 239000008397 galvanized steel Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005034 decoration Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000011433 polymer cement mortar Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
A structure suitable for a fireproof exhaust passage plastering finish coat is arranged on the outer surface of a fireproof plate of an exhaust passage, and the structure sequentially comprises a steel wire mesh layer, a cement mortar layer and an anti-cracking mortar layer from inside to outside; an internal and external corner reinforcing layer is arranged between the outer surface of the fireproof plate at the internal and external corner part and the steel wire mesh layer, and the internal and external corner reinforcing layer is a layer of glass fiber mesh cloth; the steel wire mesh layer is fastened and tightened on the outer surface of the fireproof plate through the heat-insulation nails; and a layer of glass fiber gridding cloth is laminated in the anti-crack mortar layer. The structure suitable for the fireproof exhaust passage plastering finish layer improves the adhesion between cement mortar and the fireproof plate, so that the cement mortar is tightly combined with the fireproof plate, and the plastering layer is prevented from hollowing and falling off; the crack resistance of the plastering layer is improved, and the plastering layer is prevented from cracking caused by wet expansion and dry shrinkage of the fireproof plate; and the internal and external corner parts of the exhaust passage are reinforced, so that the anti-cracking performance of the internal and external corner parts is improved.
Description
Technical Field
The utility model relates to a building exhaust system technical field, especially a structure suitable for fire prevention type exhaust passage plasters finish coat.
Background
At present, the exhaust passage used in residential engineering is mostly processed by an environment-friendly building fireproof plate with the thickness of 15mm, and the outer surface is smooth. The exterior finish is typically a cement mortar render. The environment-friendly building fireproof plate has the following problems when the decorative surface is plastered:
1. cement mortar is difficult to adhere to the fireproof plate, so that a plastering layer is easy to bulge and fall off;
2. the cement mortar is difficult to be matched with the wet expansion rate and the dry shrinkage rate of the fireproof plate, and a plastering layer is easy to crack.
3. The splicing mode of the external corner of the fireproof plate is shooting nail fastening, and although the external corner is pretreated by using the anti-corrosion slurry, the external corner is extremely easy to damage in the transportation and installation processes. The water absorption of the abutted seams is high, and the plastering layer is very easy to crack.
4. The joint of the exhaust passage and the wall body is provided with a reentrant corner part, a fireproof plate, the wall body and cement mortar, and a plastering layer is easy to crack.
5. The quality defect of secondary decoration caused by the cracking of the plastering layer generally exists; such as hollowing, cracking and falling of the facing brick, cracking of the facing paint and the like.
After the novel exhaust passage is used, complaints caused by cracking and hollowing of a plastering layer of the exhaust passage are in a trend of rising year by year in the house delivery and quality guarantee stages. A set of construction technology suitable for a fireproof exhaust passage plastering finish coat is innovated, and the project construction is the problem to be solved.
Disclosure of Invention
The utility model aims at providing a structure suitable for fire prevention type exhaust passage plasters finish coat. The structure suitable for the fireproof exhaust passage plastering finish layer improves the adhesion between cement mortar and the fireproof plate, so that the cement mortar is tightly combined with the fireproof plate, and the plastering layer is prevented from hollowing and falling off; the crack resistance of the plastering layer is improved, and the plastering layer is prevented from cracking caused by wet expansion and dry shrinkage of the fireproof plate; and the internal and external corner parts of the exhaust passage are reinforced, so that the anti-cracking performance of the internal and external corner parts is improved.
The technical scheme for solving the problems is as follows: a structure suitable for a fireproof exhaust passage plastering finish coat is arranged on the outer surface of a fireproof plate of an exhaust passage, and the structure sequentially comprises a steel wire mesh layer, a cement mortar layer and an anti-cracking mortar layer from inside to outside; an internal and external corner reinforcing layer is arranged between the outer surface of the fireproof plate at the internal and external corner part and the steel wire mesh layer, and the internal and external corner reinforcing layer is a layer of glass fiber mesh cloth; the steel wire mesh layer is fastened and tightened on the outer surface of the fireproof plate through the heat-insulation nails; and a layer of glass fiber gridding cloth is laminated in the anti-crack mortar layer.
The further technical scheme is as follows: the heat-preservation nail is arranged on the surface of the fireproof plate in a sticking mode through an interface agent, the thickness of the heat-preservation nail is 2mm, and the longitudinal and transverse intervals of the heat-preservation nail are 150mm multiplied by 150 mm.
The further technical scheme is as follows: the wire mesh layer is a galvanized wire mesh with the wire diameter of 1.0mm and the mesh size of 20 mm by 20 mm, and the extension of the joint of the galvanized wire mesh layer and the wall is 200 mm.
The further technical scheme is as follows: the internal and external corner reinforcing layer is adhered to the outer surface of the fireproof plate through an interface agent.
The further technical scheme is as follows: the glass fiber mesh cloth is positioned at the male and female corners, and each side is at least 150 mm.
The further technical scheme is as follows: the thickness of the cement mortar layer is 15mm, and the thickness of the anti-crack mortar layer is 5 mm.
Since the technical scheme is used, the utility model relates to a structure suitable for fire prevention type exhaust passage plasters finish coat compares with prior art, has following beneficial effect:
1. the structure suitable for the fireproof exhaust passage plastering finish coat is used for enhancing the crack resistance of the internal and external corners of the exhaust passage and reducing the cracking probability of the easy-to-crack part.
2. The steel wire mesh is effectively isolated from the fireproof plate through the interface agent and the heat-preservation nails, so that the steel wire mesh is completely wrapped in the mortar, and the effect of enhancing the crack resistance of the mortar is achieved.
3. The anti-cracking performance of the plastering layer of the exhaust passage is greatly improved and the construction quality of the plastering layer is well improved by three anti-cracking fortifications (steel wire mesh, anti-cracking mortar and anti-cracking glass fiber mesh cloth) and four local anti-cracking fortifications (anti-cracking reinforced glass fiber mesh cloth, steel wire mesh, anti-cracking mortar and anti-cracking glass fiber mesh cloth).
4. Greatly reducing the quality defect of secondary decoration.
5. The construction method for the fireproof exhaust passage plastering finish coat structure is simple and practical, the construction process is clear, and the popularization and the application are convenient.
The technical features of a structure suitable for a plastering finish layer of a fireproof exhaust passage according to the present invention will be further described with reference to the accompanying drawings and embodiments.
Drawings
FIG. 1 is a sectional view of the present invention, which is suitable for the plastering finish layer of the fireproof exhaust passage;
fig. 2 is a schematic diagram of reinforcing with heat preservation nails and hanging steel wire mesh.
In the figure:
1-fireproof plate, 2-internal and external corner reinforcing layer, 3-steel wire mesh layer, 4-cement mortar layer, 5-anti-crack mortar layer and 6-heat preservation nail.
Detailed Description
A structure suitable for a fireproof exhaust passage plastering finish coat is shown in figure 1, and is arranged on the outer surface of a fireproof plate 1 of an exhaust passage, and the structure sequentially comprises a steel wire mesh layer 3, a cement mortar layer 4 and an anti-cracking mortar layer 5 from inside to outside; and an internal and external corner reinforcing layer 2 is arranged between the outer surface of the fireproof plate at the internal and external corner part and the steel wire mesh layer.
The internal and external corner reinforcing layer is a layer of glass fiber mesh cloth. The glass fiber mesh cloth is adhered to the innermost side, and is generally adhered to the outer surface of the fireproof plate through an interface agent to reinforce the easy-to-crack part. In order to make the crack resistance better, each side of the glass fiber mesh cloth at the male and female corners has at least 150mm, namely the glass fiber mesh cloth wraps the male corner or the female corner, and one side wraps 150 mm.
The steel wire mesh layer is fastened and tightened on the outer surface of the fireproof plate through the heat insulation nails 6; the wire mesh layer is a galvanized wire mesh with the wire diameter of 1.0mm and the mesh size of 20 mm by 20 mm, and the extension of the joint of the galvanized wire mesh layer and the wall is 200 mm. The steel wire mesh is fastened and tightened by the heat-insulating nails, so that the steel wire mesh is effectively separated from the fireproof plate, the steel wire mesh is completely wrapped in the mortar, and the crack resistance of the mortar is improved.
The heat-preservation nail is arranged on the surface of the fireproof plate in a sticking mode through an interface agent, the thickness of the heat-preservation nail is 2mm, and the longitudinal and transverse intervals of the heat-preservation nail are 150mm multiplied by 150 mm. The heat-insulating nail is adhered on the fireproof plate, and the roughness of the fireproof plate is increased to increase the adhesiveness of the fireproof plate and cement mortar.
A layer of glass fiber gridding cloth is laminated in the anti-cracking mortar layer, so that the crack resistance of the exhaust passage plastering finish coat is improved.
The thickness of the cement mortar layer is 15mm, and the thickness of the anti-crack mortar layer is 5 mm.
A construction method suitable for the structure of the fireproof exhaust passage plastering finish coat comprises the following steps:
A. purchasing or customizing materials according to specifications → B, spraying the interface agent for the first time → C, adhering the internal and external corner reinforcing layer of the fireproof plate → D, adhering the heat preservation nail → E, fixing the steel wire mesh layer → F, spraying the interface agent for the second time → G, constructing the cement mortar layer → H, constructing the anti-crack mortar → I and maintaining. Specifically, the method comprises the following steps:
step A, purchasing or customizing materials according to specifications, wherein the materials mainly comprise: and preparing heat-insulating nails, a steel wire mesh and glass fiber mesh cloth according to a construction plan, and sprinkling equipment, an interface agent mortar spraying machine and the like required by construction.
B, spraying an interface agent for the first time: cleaning up dirt, dust and the like on the surface of the exhaust passage; one day ahead, the interface agent is evenly sprayed on the smoke vent by using an interface agent mortar spraying machine, and the smoke vent is watered and maintained. The interface agent is polymer cement mortar which is prepared from strong glue (for example, strong NDC-C glue), cement and sand according to the weight part ratio of 1: 2: 2, mixing the components.
Step C, pasting the internal and external corner reinforcing layers: and adhering a concave-convex angle reinforcing layer at the concave-convex angle of the exhaust passage (namely the fireproof plate), and reinforcing the weak part, namely adhering glass fiber mesh cloth at the weak part, and adhering glass fiber mesh cloth with the thickness of at least 150mm at each side.
E, fixing the steel wire mesh layer: the outer surface of the exhaust passage (namely the outer surface of the fireproof plate) is completely hung and fixed with a steel wire mesh to form a steel wire mesh layer, the steel wire mesh is fastened and tightened by using heat-insulating nails, and the extension of the joint of the steel wire mesh layer and the wall is 200 mm; the steel wire mesh is a galvanized steel wire mesh with the wire diameter of 1.0mm and the mesh size of 20 mm by 20 mm; the thickness of the heat preservation nail is 2mm, and the longitudinal and transverse intervals of the heat preservation nail are 150mm multiplied by 150 mm. The steel wire mesh is fastened and tightened by the heat-insulating nails, so that the steel wire mesh is completely wrapped in the mortar.
Step F, spraying an interface agent for the second time: after the steel wire mesh is fastened, the interface agent is sprayed again, and the roughness of the steel wire is increased.
Step G, cement mortar layer construction: the construction of cement mortar layer, this cement mortar layer is 15mm thick, uses 1: 3, constructing cement mortar by twice plastering.
Step H, anti-crack mortar layer construction: c, after the cement mortar in the step G is finally set, performing anti-crack mortar construction, wherein the thickness of the anti-crack mortar is 5mm, and pressing a layer of glass fiber mesh cloth completely; when the surface has no bright water, the soft brush is dipped in water and lightly brushed once to ensure the color of the surface layer to be consistent and reduce shrinkage cracks.
Step I, maintenance: and (5) carrying out water spraying maintenance after the plastering of the anti-crack mortar layer is finished, wherein the maintenance time is not less than 7 days.
The utility model discloses a construction technical essential suitable for fireproof exhaust passage plasters finish coat's structure:
firstly, the glass fiber mesh cloth at the internal and external corners is pasted at the innermost side, and each side is not less than 150 mm.
② the thickness of the heat preservation nail is preferably 2mm, and the longitudinal and transverse intervals are 150mm multiplied by 150 mm.
Thirdly, the steel wire mesh is a galvanized steel wire mesh, the extension of the joint of the galvanized steel wire mesh and the wall is not less than 200mm, and the steel wire mesh is fastened and tightened by utilizing heat-preservation nails; ensuring that the steel wire mesh is completely wrapped in the mortar.
Fourthly, processing the spraying interface agent: the fireproof plate is firstly coated with the interface agent, the glass fiber mesh cloth with the internal and external corners is adhered, the heat preservation nail is adhered, then the steel wire mesh is tightened, and then the interface agent is coated again, so that the steel wire mesh is guaranteed to be wrapped in the mortar, and the binding force between the steel wire mesh and the mortar is enhanced.
Plastering the cement mortar layer twice, and plastering the anti-crack mortar after final setting;
sixthly, pressing a layer of glass fiber mesh cloth into the anti-crack mortar.
Through the measures, three paths (the steel wire mesh, the anti-crack mortar and the anti-crack glass fiber mesh cloth) of anti-crack defense are provided for the plastering layer of the exhaust passage, four paths (the glass fiber mesh cloth for strengthening the anti-crack defense, the steel wire mesh, the anti-crack mortar and the anti-crack glass fiber mesh cloth) of anti-crack defense are provided for the local part, and the anti-crack defense of the plastering finish layer of the exhaust passage is greatly improved.
As a transformation of the construction method, the other construction method of the structure suitable for the fireproof exhaust passage plastering finish layer is basically the same as the construction method, and the difference is that the structure of the fireproof exhaust passage plastering finish layer is customized in factories and spliced and glued on site by combining an assembly type construction process.
Claims (6)
1. The utility model provides a structure suitable for fire prevention type exhaust passage plasters finish coat, this structure sets up the PLASTIC LAMINATED surface at the exhaust passage, its characterized in that: the structure sequentially comprises a steel wire mesh layer, a cement mortar layer and an anti-crack mortar layer from inside to outside; an internal and external corner reinforcing layer is arranged between the outer surface of the fireproof plate at the internal and external corner part and the steel wire mesh layer, and the internal and external corner reinforcing layer is a layer of glass fiber mesh cloth; the steel wire mesh layer is fastened and tightened on the outer surface of the fireproof plate through the heat-insulation nails; and a layer of glass fiber gridding cloth is laminated in the anti-crack mortar layer.
2. The structure of a plastered finish layer suitable for a fireproof exhaust passage according to claim 1, wherein: the heat-preservation nail is arranged on the surface of the fireproof plate in a sticking mode through an interface agent, the thickness of the heat-preservation nail is 2mm, and the longitudinal and transverse intervals of the heat-preservation nail are 150mm multiplied by 150 mm.
3. The structure of the plastering finish layer for the fireproof exhaust passage according to claim 2, wherein: the wire mesh layer is a galvanized wire mesh with the wire diameter of 1.0mm and the mesh size of 20 mm by 20 mm, and the extension of the joint of the galvanized wire mesh layer and the wall is 200 mm.
4. The structure of the plastering finish layer for the fireproof exhaust passage according to claim 3, wherein: the internal and external corner reinforcing layer is adhered to the outer surface of the fireproof plate through an interface agent.
5. The structure of the plastering finish layer for the fireproof exhaust passage according to claim 4, wherein: the glass fiber mesh cloth is positioned at the male and female corners, and each side is at least 150 mm.
6. The structure of a plastered finish layer suitable for a fireproof exhaust passage according to claim 1, wherein: the thickness of the cement mortar layer is 15mm, and the thickness of the anti-crack mortar layer is 5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921915048.XU CN211850600U (en) | 2019-11-07 | 2019-11-07 | Structure suitable for fireproof exhaust passage plastering finish coat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921915048.XU CN211850600U (en) | 2019-11-07 | 2019-11-07 | Structure suitable for fireproof exhaust passage plastering finish coat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211850600U true CN211850600U (en) | 2020-11-03 |
Family
ID=73218405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921915048.XU Expired - Fee Related CN211850600U (en) | 2019-11-07 | 2019-11-07 | Structure suitable for fireproof exhaust passage plastering finish coat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211850600U (en) |
-
2019
- 2019-11-07 CN CN201921915048.XU patent/CN211850600U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201103 |
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| CF01 | Termination of patent right due to non-payment of annual fee |