CN111535462A - Construction method of outer wall homogeneous modified fireproof insulation board - Google Patents
Construction method of outer wall homogeneous modified fireproof insulation board Download PDFInfo
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- CN111535462A CN111535462A CN202010229321.4A CN202010229321A CN111535462A CN 111535462 A CN111535462 A CN 111535462A CN 202010229321 A CN202010229321 A CN 202010229321A CN 111535462 A CN111535462 A CN 111535462A
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- 238000009413 insulation Methods 0.000 title claims abstract description 78
- 238000010276 construction Methods 0.000 title claims abstract description 23
- 239000004744 fabric Substances 0.000 claims abstract description 23
- 239000003513 alkali Substances 0.000 claims abstract description 13
- 238000005336 cracking Methods 0.000 claims abstract description 8
- 239000000853 adhesive Substances 0.000 claims description 24
- 230000001070 adhesive effect Effects 0.000 claims description 24
- 239000004570 mortar (masonry) Substances 0.000 claims description 17
- 239000011248 coating agent Substances 0.000 claims description 13
- 238000000576 coating method Methods 0.000 claims description 13
- 239000011230 binding agent Substances 0.000 claims description 12
- 239000011449 brick Substances 0.000 claims description 12
- 239000011083 cement mortar Substances 0.000 claims description 12
- 230000001680 brushing effect Effects 0.000 claims description 11
- 239000011150 reinforced concrete Substances 0.000 claims description 8
- 238000004873 anchoring Methods 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 6
- 229920003023 plastic Polymers 0.000 claims description 6
- -1 polyethylene Polymers 0.000 claims description 6
- 229920000642 polymer Polymers 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 239000004567 concrete Substances 0.000 claims description 4
- 239000011505 plaster Substances 0.000 claims description 4
- 239000011414 polymer cement Substances 0.000 claims description 4
- 238000003892 spreading Methods 0.000 claims description 4
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 3
- 239000004952 Polyamide Substances 0.000 claims description 3
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000002585 base Substances 0.000 claims description 3
- 239000010962 carbon steel Substances 0.000 claims description 3
- 239000004568 cement Substances 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229920002647 polyamide Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 238000007790 scraping Methods 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 239000012790 adhesive layer Substances 0.000 claims 1
- 239000010410 layer Substances 0.000 claims 1
- 238000004134 energy conservation Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
- 230000037452 priming Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
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- 238000007788 roughening Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
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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
- 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
- E04B1/762—Exterior insulation of exterior walls
- E04B1/7625—Details of the adhesive connection of the insulation to the wall
-
- 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
- E04B1/762—Exterior insulation of exterior walls
- E04B1/7629—Details of the mechanical connection of the insulation to the wall
- E04B1/7633—Dowels with enlarged insulation retaining head
-
- 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
- E04B1/78—Heat insulating elements
- E04B1/80—Heat insulating elements slab-shaped
-
- 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
- E04B1/941—Building elements specially adapted therefor
- E04B1/942—Building elements specially adapted therefor slab-shaped
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 relates to a construction method of a homogeneous modified fireproof insulation board for an outer wall, which can effectively ensure the flatness of the insulation board, avoid the hidden troubles of hollowing and cracking, stagger the installation of the insulation board, stagger the joint of an alkali-resistant gridding cloth lap joint and the insulation board, make up the weakness of the joint of the insulation board, prevent the later cracking of the joint, effectively avoid the falling off phenomenon of the insulation board for the outer wall while ensuring the construction quality of insulation and energy conservation, further avoid the reworking treatment in the later period, can be popularized and applied in the whole country, and has better economic and social benefits.
Description
Technical Field
The invention belongs to the field of buildings, and particularly relates to a construction method of an outer wall homogeneous modified fireproof insulation board.
Background
In order to further improve the living environment and ensure the indoor thermal environment, the national compulsory regulation requires energy-saving and heat-insulating measures for the outdoor wall surface of the residential building. The conventional method comprises the following steps: the reinforced concrete outer wall or the brick wall + insulation material + cement mortar are plastered, and this kind of way, the construction is accomplished the back, and the surface can produce many cracks, and along with the lapse of time, partial crack can constantly expand, and the heated board seriously drops, both influences whole quality, also has the infiltration hidden danger to influence whole energy-conserving effect.
Practical contents
The technical problem to be solved by the invention is to provide a construction method of the homogeneous modified fireproof insulation board for the outer wall, which can effectively avoid the falling off of the outer wall insulation and the generation of outer wall cracks while ensuring the fireproof insulation construction quality of the outer wall, thereby avoiding the reworking treatment in the later period and having better economic and social benefits.
The technical scheme adopted by the invention for solving the technical problem is as follows: a construction method of an outer wall homogeneous modified fireproof insulation board comprises the following steps:
1) cleaning the reinforced concrete wall surface or the brick wall to ensure that the outer wall surface is clean;
2) brushing special polymer waterproof mortar and scraping the bottom surface;
3) brushing special cement mortar and priming and brushing;
4) coating a binder on the back of the homogeneous modified fireproof insulation board;
5) coating an adhesive at the position where the uniform modified fireproof insulation board is laid and adhered on the special cement mortar, then laying and adhering the uniform modified fireproof insulation board, and forming a polymer cement waterproof mortar bonding layer by the adhesive and the adhesive at the back of the uniform modified fireproof insulation board;
6) after the adhesive is finally set, gap filling and local putty construction are carried out;
7) reinforcing the homogeneous modified fireproof heat-insulation board by using a special expansion bolt;
8) coating anti-crack mortar added with alkali-resistant mesh cloth;
9) and brushing the flexible waterproof putty twice.
Further, in the step 2, the reinforced concrete wall surface or the brick wall surface is sprayed with water to be wet, then cement paste is brushed for one time, and then the bottom surface of the special polymer waterproof mortar is scraped to be rough.
Further, in the step 4, the homogeneous modified fireproof insulation board to be adhered is confirmed and cleaned, the surface is guaranteed to be free of oil stain, dust and water, the back of the board is uniformly coated with the binder, the redundant binder in the middle of the back of the board is scraped by using the sawtooth-shaped coating tool to form a strip-shaped binder layer, the peripheral edge of the back of the board is uniformly coated by using the toothless coating tool, the edge ash thickness of the edge is increased, and the edge ash thickness is 5mm thicker than that of the strip-shaped binder in the middle.
Further, in the step 5, the adhesive is coated on the bonding surface of the special cement mortar by a strip bonding method, the coating thickness is preferably 3-5mm after the adhesive is bonded and extruded, and the effective bonding area of the homogeneous modified fireproof insulation board is not less than 60%. The cement mortar leveling layer can ensure the flatness of the homogeneous modified fireproof heat-insulation board and avoid the hidden danger of hollowing and cracking.
Further, in the step 5, when the homogeneous modified fireproof insulation board is pasted, the board should be lightly rubbed, the uniform extrusion is dense, the bonding of the board is ensured to be firm, the board is adjusted by a 2m guiding rule and a rubber hammer, the board is tightly squeezed, the adhesive extruded from the side surface of the joint should be cleaned up in time, when the homogeneous modified fireproof insulation board is paved, the board is transversely paved along the horizontal direction from bottom to top in a segmented mode, the vertical stagger joints of the upper and lower rows of homogeneous modified fireproof insulation boards are not less than 1/3 board length, the local minimum stagger joint is not less than 200mm, at the corner of the wall body, the end parts of the homogeneous modified fireproof insulation board should be vertically staggered and interlocked, and the corner is ensured.
Further, in the step 5, the dry apparent density of the homogeneous modified fireproof heat-insulation board is 170-200Kg/m2The compression strength is more than or equal to 0.30Mpa, and the combustion performance is A grade.
Further, in step 7, the plastic nail of the special expansion bolt and the plastic expansion sleeve with the disk are made of polyamide, polyethylene or polypropylene, recycled materials cannot be used, and the steel expansion piece and the expansion sleeve are made of stainless steel or carbon steel subjected to surface corrosion prevention treatment.
Further, in step 7, the nominal diameter of the disc of the special expansion bolt is not less than 50mm, the nominal diameter of the expansion sleeve is not less than 8mm, the effective anchoring depth is more than or equal to 25mm for the common concrete foundation wall, the standard value of the tensile bearing capacity of the single special expansion bolt is more than or equal to 0.60KN, the effective anchoring depth is more than or equal to 50mm for the porous brick masonry foundation wall, and the standard value of the tensile bearing capacity of the single bolt is more than or equal to 0.40 KN.
Further, in the step 7, the special expansion bolts are arranged according to the quincunx shape, and the number of the special expansion bolts is not less than 8 per square meter of the homogeneous modified fireproof insulation board.
Further, in the step 8, overlapping seams of the alkali-resistant mesh cloth are staggered with seams of the homogeneous modified fireproof heat-insulation board so as to make up for weak points at the seams of the homogeneous modified fireproof heat-insulation board and prevent later-stage cracking of the seams; should impress alkaline-resisting net cloth of a strenghthened type and alkaline-resisting net cloth of a common type in the anti-crack mortar plaster, the alkaline-resisting net cloth of strenghthened type arranges in the alkaline-resisting net cloth inboard of common type, and the plaster bed thickness is not less than 10mm, and the overlap joint length of alkaline-resisting net cloth is no less than 100m, and the unit area quality is not less than 300g/m2。
Compared with the prior art, the method can effectively guarantee the flatness of the heat-insulation board, avoid the hidden troubles of hollowing and cracking, install the heat-insulation board in a staggered manner, stagger the joint of the alkali-resistant mesh cloth lap joint and the heat-insulation board, make up the weak point of the joint of the heat-insulation board, prevent later cracking, effectively avoid the falling phenomenon of the heat-insulation board of the outer wall while ensuring the heat-insulation energy-saving construction quality, further avoid the reworking treatment in the later period, can be popularized and applied in the whole country, and has better economic and social benefits.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
In the figure: 1. the concrete external wall or brick wall comprises a reinforced concrete external wall surface or brick wall, 2 special polymer waterproof mortar, 3 special cement mortar priming, 4 polymer cement waterproof mortar bonding layers, 5 homogeneous modified fireproof insulation boards, 6 filling gaps and local putty, 7 special expansion bolts, 8 anti-crack mortar, 9 flexible waterproof putty.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
As shown in fig. 1, the present embodiment includes the following steps during construction:
1) the reinforced concrete wall surface or the brick wall 1 is cleaned firstly, and the cleanness of the outer wall surface is ensured.
2) Spraying water on the reinforced concrete wall surface or the brick wall 1 for wetting, brushing cement paste for one time, and performing bottom surface roughening construction of the special polymer waterproof mortar 2.
3) Brushing special cement mortar 3 in a ratio of 1:3 and priming and brushing.
4) And (3) coating a binder on the back of the homogeneous modified fireproof heat-insulation board 5. The method comprises the steps of firstly confirming and cleaning 5 plates of the homogeneous modified fireproof insulation board to be adhered, ensuring that the surfaces of the plates are free of oil stains, dust and water, uniformly smearing a binder on the back of the plates, scraping off redundant binder in the middle of the back of the plates by using a sawtooth-shaped smearing tool to form a strip-shaped binder layer, then uniformly smearing the edges of the periphery of the back of the plates by using a non-tooth-shaped smearing tool, increasing the thickness of edge ash, and enabling the thickness of the edge ash to be 5mm thicker than that of the strip-shaped binder in the.
5) And (3) spreading and pasting a homogeneous modified fireproof insulation board 5 on the special cement mortar 3 in the ratio of 1:3, smearing an adhesive, then spreading and pasting the homogeneous modified fireproof insulation board 5, and forming a polymer cement waterproof mortar bonding layer 4 by the adhesive and a binder on the back of the homogeneous modified fireproof insulation board 5. The adhesive is coated on the bonding surface of the 1:3 special cement mortar 3 by a strip bonding method, the coating thickness is preferably 3-5mm after the adhesive is bonded and extruded, and the effective bonding area of the homogeneous modified fireproof insulation board 5 is not less than 60%. When the homogeneous modified fireproof insulation board 5 is pasted, the board should be lightly rubbed and uniformly extruded to be dense, so that the bonding firmness of the boards is ensured, the boards are adjusted by a 2m guiding rule and a rubber hammer, the boards are tightly extruded, and the joint part isThe adhesive extruded from the side face is cleaned in time, when the homogeneous modified fireproof insulation board 5 is paved, the adhesive is paved and paved in a horizontal direction from bottom to top in sections, the vertical joints of the upper row of homogeneous modified fireproof insulation boards 5 and the lower row of homogeneous modified fireproof insulation boards 5 are not less than 1/3 board length, the local minimum joints are not less than 200mm, the ends of the homogeneous modified fireproof insulation boards 5 are interlocked in a vertical staggered mode at corners of the wall, and the corners are guaranteed to be straight. The dry apparent density of the homogeneous modified fireproof heat-insulation board 5 is 170-200Kg/m2The compression strength is more than or equal to 0.30Mpa, and the combustion performance is A grade.
6) And after the adhesive is finally set, filling gaps and constructing local putty 6.
7) The special expansion bolts 7 are used for reinforcing the homogeneous modified fireproof heat-insulation board 5. The plastic nail and the plastic expansion sleeve with the disc of the special expansion bolt 7 are made of polyamide, polyethylene or polypropylene, recycled materials cannot be used, and the steel expansion piece and the expansion sleeve are made of stainless steel or carbon steel with surface corrosion resistance. The special expansion bolts 7 are arranged according to a quincunx shape, and the number of the special expansion bolts is not less than 8 per square meter of the homogeneous modified fireproof heat-insulation board 5. The nominal diameter of the disc of the special expansion bolt 7 is not less than 50mm, the nominal diameter of the expansion sleeve is not less than 8mm, the effective anchoring depth is more than or equal to 25mm for a common concrete base wall, the standard value of the tensile bearing capacity of the single special expansion bolt 7 is more than or equal to 0.60KN, the effective anchoring depth is more than or equal to 50mm for a porous brick masonry base wall, and the standard value of the tensile bearing capacity of the single bolt is more than or equal to 0.40 KN.
8) And brushing the anti-crack mortar 8 added with the alkali-resistant mesh cloth. The lap joints of the alkali-resistant mesh cloth are staggered with the joints of the homogeneous modified fireproof insulation board 5 so as to make up for the weak points at the joints of the homogeneous modified fireproof insulation board 5 and prevent later-stage cracking; should impress alkali-resistant net cloth of a strenghthened type and alkali-resistant net cloth of a general type in 8 plasters of anti-crack mortar, the alkali-resistant net cloth of strenghthened type arranges in the alkali-resistant net cloth inboard of general type, and the layer thickness of plastering is not less than 10mm, and 100m are no less than to alkali-resistant net cloth's overlap joint length, and the unit area quality is not less than 300g/m2。
9) And (4) brushing the flexible waterproof putty for 9 times.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A construction method of an outer wall homogeneous modified fireproof insulation board is characterized by comprising the following steps:
1) cleaning the reinforced concrete wall surface or the brick wall (1) to ensure that the outer wall surface is clean;
2) brushing special polymer waterproof mortar (2) and scraping the bottom surface;
3) special cement mortar (3) is coated and brushed;
4) coating a binder on the back of the homogeneous modified fireproof heat-insulation board (5);
5) spreading an adhesive at the position where the homogeneous modified fireproof insulation board (5) is paved on the special cement mortar (3), then spreading the homogeneous modified fireproof insulation board (5), and forming a polymer cement waterproof mortar bonding layer (4) by the adhesive and the adhesive on the back of the homogeneous modified fireproof insulation board (5);
6) after the adhesive is finally set, filling gaps and constructing partial putty (6);
7) reinforcing the homogeneous modified fireproof heat-insulation board (5) by using a special expansion bolt (7);
8) coating anti-crack mortar (8) added with alkali-resistant mesh cloth;
9) and brushing the flexible waterproof putty (9) twice.
2. The construction method of the homogeneous modified fireproof insulation board for the exterior wall according to claim 1, wherein in the step 2, the reinforced concrete wall surface or the brick wall (1) is sprayed with water to be wet, then a cement paste is brushed, and then the bottom surface of the special polymer waterproof mortar (2) is scraped to be rough.
3. The construction method of the homogeneous modified fireproof insulation board for the outer wall according to claim 1, wherein in the step 4, the homogeneous modified fireproof insulation board (5) to be adhered is confirmed and cleaned, so as to ensure that the surface is free of oil stain, dust and water, the back of the board is uniformly coated with the adhesive, the redundant adhesive in the middle of the back of the board is scraped off by using a zigzag coating tool to form a strip-shaped adhesive layer, then the peripheral edge of the back of the board is uniformly coated by using a non-tooth-shaped coating tool, the thickness of the edge ash is increased, and the thickness of the edge ash is 5mm thicker than that of the strip-shaped adhesive in the middle.
4. The construction method of the homogeneous modified fireproof insulation board for the external wall according to claim 1, wherein in the step 5, the adhesive is coated on the bonding surface of the special cement mortar (3) by a strip bonding method, the coating thickness is preferably such that the thickness of the adhesive after bonding and extrusion is about 3-5mm, and the effective bonding area of the homogeneous modified fireproof insulation board (5) is not less than 60%.
5. The construction method of the homogeneous modified fireproof heat-insulation board for the exterior wall according to claim 1, wherein in the step 5, the homogeneous modified fireproof heat-insulation board (5) is lightly kneaded, uniformly extruded and compacted when being pasted, so as to ensure firm bonding of the boards, the boards are adjusted by using a 2m guiding rule and a rubber hammer, the boards are tightly extruded, an adhesive extruded from the side surface of a joint is timely cleaned, when the homogeneous modified fireproof heat-insulation board (5) is paved, the boards are paved and pasted horizontally from bottom to top in a sectional manner, the vertical stagger of the upper and lower rows of homogeneous modified fireproof heat-insulation boards (5) is not less than 1/3 board length, the local minimum stagger is not less than 200mm, and at the corners of the wall, the ends of the homogeneous modified fireproof heat-insulation boards (5) are vertically staggered and interlocked, so as to ensure that the corners are straight.
6. The construction method of the homogeneous modified fireproof insulation board for the exterior wall as claimed in claim 1, wherein in the step 5, the dry apparent density of the homogeneous modified fireproof insulation board (5) is 170-2The compression strength is more than or equal to 0.30Mpa, and the combustion performance is A grade.
7. The construction method of the homogeneous modified fireproof insulation board for the exterior wall according to claim 1, wherein in the step 7, the plastic nail of the special expansion bolt (7) and the plastic expansion sleeve with the disc are made of polyamide, polyethylene or polypropylene, recycled materials cannot be used, and the steel expansion piece and the expansion sleeve are made of stainless steel or carbon steel subjected to surface corrosion protection treatment.
8. The construction method of the homogeneous modified fireproof insulation board for the exterior wall according to claim 1, wherein in the step 7, the nominal diameter of the disc of the special expansion bolt (7) should not be less than 50mm, the nominal diameter of the expansion sleeve should not be less than 8mm, for the common concrete foundation wall, the effective anchoring depth is greater than or equal to 25mm, the standard value of the tensile bearing capacity of the single special expansion bolt (7) is greater than or equal to 0.60KN, for the porous brick masonry base wall, the effective anchoring depth is greater than or equal to 50mm, and the standard value of the tensile bearing capacity of the single bolt is greater than or equal to 0.40 KN.
9. The construction method of the homogeneous modified fireproof insulation board of the outer wall according to claim 1, wherein in the step 7, the special expansion bolts (7) are arranged according to quincunx, and not less than 8 expansion bolts are arranged on each square meter of the homogeneous modified fireproof insulation board (5).
10. The construction method of the homogeneous modified fireproof insulation board for the exterior wall according to claim 1, wherein in the step 8, the lap joint of the alkali-resistant mesh cloth is staggered with the joint of the homogeneous modified fireproof insulation board (5) to make up for the weak point at the joint of the homogeneous modified fireproof insulation board (5) to prevent later cracking; should impress an alkali-resisting net cloth of strenghthened type and an alkali-resisting net cloth of ordinary type in anti-crack mortar (8) plaster, the alkali-resisting net cloth of strenghthened type arranges in the alkali-resisting net cloth inboard of ordinary type, and the plaster bed thickness is not less than 10mm, and 100m are no less than to the overlap joint length of alkali-resisting net cloth, and the unit area quality is not less than 300g/m2。
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| CN202010229321.4A CN111535462A (en) | 2020-03-27 | 2020-03-27 | Construction method of outer wall homogeneous modified fireproof insulation board |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113187111A (en) * | 2021-04-02 | 2021-07-30 | 上海二十冶建设有限公司 | Construction method of inorganic fiber vacuum insulation board structure of outer wall |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113187111A (en) * | 2021-04-02 | 2021-07-30 | 上海二十冶建设有限公司 | Construction method of inorganic fiber vacuum insulation board structure of outer wall |
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Application publication date: 20200814 |