CN105672503A - High-performance external wall insulation structure and construction method thereof - Google Patents
High-performance external wall insulation structure and construction method thereof Download PDFInfo
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- CN105672503A CN105672503A CN201610033515.0A CN201610033515A CN105672503A CN 105672503 A CN105672503 A CN 105672503A CN 201610033515 A CN201610033515 A CN 201610033515A CN 105672503 A CN105672503 A CN 105672503A
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- layer
- splicing
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- splicing layer
- internal layer
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- 238000009413 insulation Methods 0.000 title claims abstract description 32
- 238000010276 construction Methods 0.000 title claims abstract description 24
- 238000006073 displacement reaction Methods 0.000 claims description 32
- 238000000034 method Methods 0.000 claims description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 229920006328 Styrofoam Polymers 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- 239000010439 graphite Substances 0.000 claims description 7
- 229910002804 graphite Inorganic materials 0.000 claims description 7
- 239000004570 mortar (masonry) Substances 0.000 claims description 7
- 239000008261 styrofoam Substances 0.000 claims description 7
- 239000004568 cement Substances 0.000 claims description 6
- 239000004814 polyurethane Substances 0.000 claims description 6
- 239000002002 slurry Substances 0.000 claims description 6
- 229920000642 polymer Polymers 0.000 claims description 5
- 239000004964 aerogel Substances 0.000 claims description 3
- 238000004873 anchoring Methods 0.000 claims description 3
- 238000005336 cracking Methods 0.000 claims description 3
- 238000005553 drilling Methods 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 239000006260 foam Substances 0.000 claims description 3
- 238000005187 foaming Methods 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- 239000011440 grout Substances 0.000 claims description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 3
- 239000011707 mineral Substances 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 239000002966 varnish Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 239000006004 Quartz sand Substances 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 5
- 239000004816 latex Substances 0.000 description 4
- 229920000126 latex Polymers 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000010792 warming Methods 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- HDERJYVLTPVNRI-UHFFFAOYSA-N ethene;ethenyl acetate Chemical compound C=C.CC(=O)OC=C HDERJYVLTPVNRI-UHFFFAOYSA-N 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 description 1
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 description 1
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 description 1
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000011433 polymer cement mortar Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Acoustics & Sound (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Finishing Walls (AREA)
- Building Environments (AREA)
Abstract
The invention provides a high-performance external wall insulation structure and a construction method thereof. The high-performance external wall insulation structure comprises an inner splicing layer and an outer splicing layer, the inner side of the inner splicing layer is fixedly attached to an external wall to be connected, the outer splicing layer is attached to the outer side of the inner splicing layer, and the splicing positions of the outer splicing layer and the splicing positions of the inner splicing layer are fixed in a staggered mode, so that thermal bridge conduction of the splicing positions of the inner splicing layer in the thermal-conduction direction is blocked by the outer splicing layer. Compared with the prior art, the high-performance external wall insulation structure has the advantages of being small in mass, stable in fixing performance, good in insulation performance, high in wind load resistance performance and low in overhaul rate; the construction method is simple, and the construction manpower cost is reduced.
Description
Technical field
The present invention relates to general structure; Being not limited to wall, such as, partition wall, or any a kind of structure field in floor or ceiling or roof, particularly relate to a kind of high-performance exterior wall insulation construction and constructional method thereof.
Background technology
Super low energy consumption building refers to acclimatization characteristic sum natural condition, by the enclosed structure that thermal and insulating performance and air-tightness are higher, adopt efficient new wind-heat recovery technology, farthest reduce building heating cooling demand, and make full use of renewable energy source, the building of comfortable indoor environment is provided with less energy consumption.
In the prior art, those skilled in the art adopt EPS warming plate to make thermal insulation layer, wall outer side are attached, then layer and the finish coat of wiping one's face of constructing, to reach the requirement of super low energy consumption building. But, there is following drawback in above-mentioned lagging material and constructional method: such as EPS sheet, and thermal and insulating performance is relatively poor, will reach the requirement of super low energy consumption building, and insulation layer thickness is relatively large, and severe cold and cold district insulation layer thickness can reach 250-300mm. Owing to the increase of insulation layer thickness can affect fixing reliability and weather resistance, resisting wind press capacity also can increase with insulation layer thickness and be affected simultaneously, causes existing super low energy consumption building revision rate to remain high. Further, adopting traditional construction technology, the seam place of plate and plate can form hot bridge, still causes a large amount of heat exchange, reduces thermal insulation layer performance.
Summary of the invention
For the problems referred to above, the invention solves in prior art, in exterior wall insulated structure and constructional method, the problem that fixed performance is poor, resisting wind press capacity is poor, heat-insulating property is low and revision rate is high.
In order to achieve the above object, the present invention provides following technical scheme:
High-performance exterior wall insulation construction, comprising: internal layer splicing layer and outer splicing layer; Inner side and the exterior wall to be connected attachment of described internal layer splicing layer are fixing; Described skin splicing layer is attached to the outside of described internal layer splicing layer, the stitching portion of stitching portion and the described internal layer splicing layer of described skin splicing layer is staggered fixing, and described skin splicing layer is blocked stitching portion that described internal layer splices layer is conducted along the hot bridge in thermal conduction direction.
Wherein, described skin splicing layer and the splicing layer perps fissure of displacement 1/3 attachment of described internal layer are fixing.
Wherein, described skin splicing layer and the splicing layer transverse joint fissure of displacement 1/2 attachment of described internal layer are fixing.
Wherein, the perps of the concatenation unit of described internal layer splicing layer fissure of displacement layout line by line.
Wherein, described internal layer splicing layer concatenation unit perps line by line the fissure of displacement 1/2 arrange.
Wherein, the perps fissure of displacement layout line by line of the concatenation unit of described skin splicing layer.
Wherein, described skin splicing layer concatenation unit perps line by line the fissure of displacement 1/2 arrange.
The constructional method of high-performance exterior wall insulation construction, comprises the steps:
S101, exterior wall to be connected evenly applies one layer of polymeric sand-cement slurry, and the concatenation unit that internal layer splices layer attaches in the horizontal direction line by line; Wherein, the perps fissure of displacement 1/2 line by line of the concatenation unit of internal layer splicing layer;
S102, the outside that internal layer splices layer evenly applies one layer of polymeric sand-cement slurry, and the concatenation unit that skin splices layer attaches in the horizontal direction line by line; Wherein the concatenation unit of internal layer splicing layer and the concatenation unit of described skin splicing layer all adopt graphite styrofoam; Wherein, the perps fissure of displacement 1/2 line by line of the concatenation unit of outer splicing layer; Wherein, described skin splicing layer and the described internal layer splicing layer perps fissure of displacement 1/3; Described skin splicing layer and the described internal layer splicing layer transverse joint fissure of displacement 1/2; With reciprocating drill or electric hammer boring, drilling depth 10mm darker in anchorage depth; It is filled in boring with foaming PU glue, adopts screw-in formula crab-bolt to carry out anchoring; Crab-bolt enters wall useful length and is not less than 4cm;
S103, splices the outer application one layer of polymeric anticracking grout of layer at skin; Wherein embedding layer of glass grid cloth in polymers anti-cracking mortar;
S104, re-uses coating or true mineral varnish carries out outermost layer coating.
Wherein, in described S102 step, also comprising, aerogel is filled at the hot bridge point place that outer splicing layer and described internal layer splicing layer are formed.
Wherein, in described S102 step, also comprise, the hot bridge point place spray coating polyurethane rigid foam that outer splicing layer and described internal layer splicing layer are formed, form heat insulation point.
The present invention compared with prior art, has light weight, fixed performance is stable, good heat insulating, resisting wind press capacity are strong and revision rate is a low advantage, and constructional method is simple, reduces construction human cost.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, it is briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings;
Fig. 1 is the structural representation of the present invention.
Embodiment
Below in conjunction with embodiments of the invention, the technical scheme of the present invention is clearly and completely described, it is clear that described embodiment is only the present invention's part embodiment, instead of whole embodiments. Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
High-performance exterior wall insulation construction, as shown in Figure 1, comprise, internal layer splicing layer and outer splicing layer, inner side and the exterior wall to be connected attachment of internal layer splicing layer are fixing, outer splicing layer is attached to the outside of internal layer splicing layer, and the stitching portion of outer splicing layer is staggered fixing with the stitching portion of internal layer splicing layer, and outer splicing layer is blocked stitching portion that internal layer splices layer is conducted along the hot bridge in thermal conduction direction.Internal layer splicing layer and outer splicing layer are spliced by concatenation unit. Wherein concatenation unit selects graphite styrofoam.
When the concatenation unit that internal layer splices layer splices, concatenation unit splices in the horizontal direction line by line, line by line perps fissure of displacement layout line by line. Wherein, the perps fissure of displacement 1/4 to 3/4 line by line, it is preferable that, the fissure of displacement 1/2.
When the concatenation unit that skin splices layer splices, concatenation unit splices in the horizontal direction line by line, line by line perps fissure of displacement layout line by line. Wherein, the perps fissure of displacement 1/4 to 3/4 line by line, it is preferable that, the fissure of displacement 1/2.
When skin splices layer and internal layer splicing layer attachment is fixing, outer splicing layer and the internal layer splicing layer perps fissure of displacement 1/3; The transverse joint fissure of displacement 1/2.
The thermal conductivity of graphite styrofoam is lower than EPS sheet, and reach the prerequisite of identical heat transfer coefficient in building enclosure under, the thickness of graphite styrofoam is lower than EPS sheet. Generally, about 20% can be reduced by graphite styrofoam than the thickness of EPS sheet. Producing hot bridge at the splicing gap place of concatenation unit, by Theoretical Calculation, plate seam length (i.e. hot bridge length) of unit surface is 2.5m/m2. In the present invention, internal layer splicing layer and outer splicing layer are through technique scheme, and the hot bridge that internal layer splicing layer produces at plate seam place is spliced layer by skin to be blocked, and the hot bridge that same outer splicing layer produces at plate seam place is spliced layer by internal layer to be blocked. The plate seam of internal layer splicing layer produces several hot bridge points with the Ban Feng intersection of outer splicing layer. By Theoretical Calculation, the hot bridge point of unit surface is about 2.8/m2. It thus is seen that high-performance exterior wall insulation construction heat-insulating property height of the present invention.
Further, layer is spliced by internal layer fixing with skin splicing layer attachment, it is preferable that the thickness of internal layer splicing layer is identical with the thickness of skin splicing layer, and after attachment is fixing, Wind-Pressure Resistance ability is strong, and therefore increase in work-ing life and repair rate reduce.
The constructional method of high-performance exterior wall insulation construction of the present invention, comprises the steps:
The first step, exterior wall to be connected, i.e. Steel Concrete metope, evenly coating one layer of polymeric sand-cement slurry, the concatenation unit that internal layer splices layer attaches in the horizontal direction line by line. The wherein perps fissure of displacement 1/2 of the concatenation unit of internal layer splicing layer.
2nd step, splices the outer application one layer of polymeric sand-cement slurry of layer by internal layer, and the concatenation unit that skin splices layer attaches in the horizontal direction line by line, wherein, and the perps fissure of displacement 1/2 line by line of the concatenation unit of outer splicing layer. When internal layer splicing layer attaches with outer splicing layer, outer splicing layer and the internal layer splicing layer perps fissure of displacement 1/3; Outer splicing layer and the internal layer splicing layer transverse joint fissure of displacement 1/2; Wherein the concatenation unit of internal layer splicing layer and the concatenation unit of described skin splicing layer all adopt graphite styrofoam.
Wherein, the formula of polymer cement mortar is:
42.5 ordinary Portland cement 20%-28%
Quartz sand 60%-70%
White lime 1%-5%
Heavy calcium 5%-10%
Hydroxypropyl methyl cellulose ether 0.1%-0.5%
Redispersible latex powder 1.5%-3%.
Redispersible latex powder adopts the ethene-vinyl acetate base redispersable latex powder of a kind of modification, and by regulating the addition content of latex powder, greatly improves the stretching bonding strength of polymer mortar, effectively reduces the water-intake rate of polymer mortar simultaneously; Quartz sand adopts the level of science to join simultaneously: the quartz sand adopting two kinds of particle diameters different, 40-70 order quartz sand and 70-100 order quartz sand proportioning are 4:1-5:1.Improve the workability of mortar, construct simpler and easy.
The advantage of this mortar formula: improve the bonding strength between warming plate and body of wall and warming plate, it is to increase the resistance to impact shock of whole exterior wall heat-preserving system, extends the life-span of heat-insulation system.
Wherein, as shown in Figure 1, after outer splicing layer 2 and internal layer splicing layer 1 attach, there is hot bridge point in inside and outside two layers of splicing layer gap intersection place, fills aerogel at hot bridge point place, after filling, and at hot bridge point place spray coating polyurethane rigid foam 3, form heat insulation point. Internal layer splicing layer is disappeared with the hot bridge point of outer splicing layer, reaches without hot bridge point.
With reciprocating drill or electric hammer boring, drilling depth 10mm darker in anchorage depth. It is filled in boring with foaming PU glue, adopts screw-in formula crab-bolt to carry out anchoring. Crab-bolt enters wall useful length and is not less than 4cm.
3rd step, the outer application one layer of polymeric anticracking grout of outer splicing layer; Embedding layer of glass grid cloth in polymers anti-cracking mortar.
4th step, re-uses coating or true mineral varnish carries out outermost layer coating, completes construction.
The above; it is only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any it is familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention. Therefore, protection scope of the present invention should described be as the criterion with the protection domain of claim.
Claims (10)
1. high-performance exterior wall insulation construction, it is characterised in that, comprising: internal layer splicing layer and outer splicing layer; Inner side and the exterior wall to be connected attachment of described internal layer splicing layer are fixing; Described skin splicing layer is attached to the outside of described internal layer splicing layer, the stitching portion of stitching portion and the described internal layer splicing layer of described skin splicing layer is staggered fixing, and described skin splicing layer is blocked stitching portion that described internal layer splices layer is conducted along the hot bridge in thermal conduction direction.
2. high-performance exterior wall insulation construction according to claim 1, it is characterised in that: described skin splicing layer and the splicing layer perps fissure of displacement 1/3 attachment of described internal layer are fixing.
3. high-performance exterior wall insulation construction according to claim 1 and 2, it is characterised in that: described skin splicing layer and the splicing layer transverse joint fissure of displacement 1/2 attachment of described internal layer are fixing.
4. high-performance exterior wall insulation construction according to claim 3, it is characterised in that: the perps fissure of displacement layout line by line of the concatenation unit of described internal layer splicing layer.
5. high-performance exterior wall insulation construction according to claim 4, it is characterised in that: described internal layer splicing layer concatenation unit perps line by line the fissure of displacement 1/2 arrange.
6. high-performance exterior wall insulation construction according to claim 3, it is characterised in that: the perps fissure of displacement layout line by line of the concatenation unit of described skin splicing layer.
7. high-performance exterior wall insulation construction according to claim 6, it is characterised in that: described skin splicing layer concatenation unit perps line by line the fissure of displacement 1/2 arrange.
8. the constructional method of high-performance exterior wall insulation construction, it is characterised in that, comprise the steps:
S101, exterior wall to be connected evenly applies one layer of polymeric sand-cement slurry, and the concatenation unit that internal layer splices layer attaches in the horizontal direction line by line; Wherein, the perps fissure of displacement 1/2 line by line of the concatenation unit of internal layer splicing layer;
S102, the outside that internal layer splices layer evenly applies one layer of polymeric sand-cement slurry, and the concatenation unit that skin splices layer attaches in the horizontal direction line by line; Wherein, the perps fissure of displacement 1/2 line by line of the concatenation unit of outer splicing layer;Wherein, outer splicing layer and the internal layer splicing layer perps fissure of displacement 1/3; Described skin splicing layer and the described internal layer splicing layer transverse joint fissure of displacement 1/2; Wherein the concatenation unit of internal layer splicing layer all adopts graphite styrofoam with the concatenation unit material of outer splicing layer; With reciprocating drill or electric hammer boring, drilling depth 10mm darker in anchorage depth; It is filled in boring with foaming PU glue, adopts screw-in formula crab-bolt to carry out anchoring; Crab-bolt enters wall useful length and is not less than 4cm;
S103, splices the outer application one layer of polymeric anticracking grout of layer at skin; Wherein embedding layer of glass grid cloth in polymers anti-cracking mortar;
S104, re-uses coating or true mineral varnish carries out outermost layer coating.
9. the constructional method of high-performance exterior wall insulation construction according to claim 8, it is characterised in that: in described S102 step, also comprising, aerogel is filled at the hot bridge point place that outer splicing layer and internal layer splicing layer are formed.
10. the constructional method of high-performance exterior wall insulation construction according to claim 9, it is characterised in that: in described S102 step, also comprise, the hot bridge point place spray coating polyurethane rigid foam that outer splicing layer and internal layer splicing layer are formed, form heat insulation point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610033515.0A CN105672503A (en) | 2016-01-19 | 2016-01-19 | High-performance external wall insulation structure and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610033515.0A CN105672503A (en) | 2016-01-19 | 2016-01-19 | High-performance external wall insulation structure and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
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| CN105672503A true CN105672503A (en) | 2016-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610033515.0A Pending CN105672503A (en) | 2016-01-19 | 2016-01-19 | High-performance external wall insulation structure and construction method thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005105534A (en) * | 2003-09-26 | 2005-04-21 | Shimizu Corp | Structure of exterior wall and its construction method |
| CN202227738U (en) * | 2011-10-18 | 2012-05-23 | 青岛浩铭节能科技有限公司 | Vertical surface body of extruded plate type thermal insulation storage inner shell |
| CN202689237U (en) * | 2012-06-28 | 2013-01-23 | 天津达璞瑞科技有限公司 | Fireproof thermal-insulation composite outer wall |
| CN104372864A (en) * | 2014-11-15 | 2015-02-25 | 张欣 | Building external thermal insulation layer reinforcing device and inner anchoring and outer enhancement construction method |
| CN204781371U (en) * | 2015-07-13 | 2015-11-18 | 天津达璞瑞科技有限公司 | Waterproof system of civil engineering freezer wall body heat preservation |
| CN105064542A (en) * | 2015-09-10 | 2015-11-18 | 孙洪明 | Fireproof heat-insulating structure of building external wall |
-
2016
- 2016-01-19 CN CN201610033515.0A patent/CN105672503A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005105534A (en) * | 2003-09-26 | 2005-04-21 | Shimizu Corp | Structure of exterior wall and its construction method |
| CN202227738U (en) * | 2011-10-18 | 2012-05-23 | 青岛浩铭节能科技有限公司 | Vertical surface body of extruded plate type thermal insulation storage inner shell |
| CN202689237U (en) * | 2012-06-28 | 2013-01-23 | 天津达璞瑞科技有限公司 | Fireproof thermal-insulation composite outer wall |
| CN104372864A (en) * | 2014-11-15 | 2015-02-25 | 张欣 | Building external thermal insulation layer reinforcing device and inner anchoring and outer enhancement construction method |
| CN204781371U (en) * | 2015-07-13 | 2015-11-18 | 天津达璞瑞科技有限公司 | Waterproof system of civil engineering freezer wall body heat preservation |
| CN105064542A (en) * | 2015-09-10 | 2015-11-18 | 孙洪明 | Fireproof heat-insulating structure of building external wall |
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Application publication date: 20160615 |