CN104234249A - Construction method of outer heat insulation wall using polyurethane hard foam composite boards - Google Patents

Construction method of outer heat insulation wall using polyurethane hard foam composite boards Download PDF

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Publication number
CN104234249A
CN104234249A CN201410455949.0A CN201410455949A CN104234249A CN 104234249 A CN104234249 A CN 104234249A CN 201410455949 A CN201410455949 A CN 201410455949A CN 104234249 A CN104234249 A CN 104234249A
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China
Prior art keywords
polyurethane foam
foam composite
leveling layer
boards
adhesive mortar
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Application number
CN201410455949.0A
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Chinese (zh)
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CN104234249B (en
Inventor
张冬初
张立超
钱薇
张海峰
李浙锋
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ZHONGLI CONSTRUCTION GROUP CO Ltd
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ZHONGLI CONSTRUCTION GROUP CO Ltd
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Publication of CN104234249B publication Critical patent/CN104234249B/en
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Abstract

The invention discloses a construction method of an outer heat insulation wall using polyurethane hard foam composite boards. The construction method comprises the following steps of manufacturing a leveling layer on the surface of an outer wall base layer; hanging a line, snapping the line, separating lattices and drilling; attaching and paving boards in a lattice separating area of the leveling layer, wherein the boards are coated with bonding mortar which is mixed with polyester fiber, the mixing amount of polypropylene fiber in the self-manufactured bonding mortar is 0.80Kg/m<3>, the mass ratio of sand to EVA (ethylene-vinyl acetate) emulsion powder to water to mixture of cement and ground fine limestone in the self-manufactured bonding mortar is 100:0.5:42:100, and the mass percentages of the cement and the ground fine limestone in the mixture are respectively 95% and 5%; respectively fixing the boards on the leveling layer by anchor bolts; spraying and embedding a single-component polyurethane foam joint mixture into a joint between the boards; plugging and sealing the joint between the boards by a waterproof and weatherproof type silicone sealant; cleaning and curing the surface. The outer heat insulation wall which is manufactured by the construction method has the advantages that the bonding strength is high, the service life is long, and the heat insulation, heat isolation, crack resistance, water seepage prevention, and wind uncovering and falling prevention properties are realized.

Description

The external heat insulating wall engineering method of application hard polyurethane foam composite plates
[technical field]
The present invention relates to a kind of external heat insulating wall engineering method applying hard polyurethane foam composite plates, be applicable to the heat preservation and decoration of outer wall engineering of civilian and industrial construction of newly-built, enlarging, reconstruction.
[background technology]
Building energy conservation is the focus that industrialization society development energy conservation is paid close attention to, outer wall heat insulating energy saving account for very large task in energy conservation, country carries forward vigorously building energy conservation in recent years, implement wall reform and development correlation technique, each province for this reason, city has also set up wall specially and has corrected, various energy-saving building materials emerges in an endless stream, and in known materials, especially be widely used in building heat preservation body of wall with hard polyurethane foam composite plate, it collects insulation, waterproof and decoration functions are, but because this material belongs to New Building Materials, still owe ripe in construction technology, some difficult points are still had to have in work progress to be solved.Such as, external thermal insulated wall body structure is taken off at adhesion strength, insulation, heat insulation, anti-crack and anti-seepage water, wind resistance and is come off and need to explore and improve in application life etc.
[summary of the invention]
The object of this invention is to provide the external heat insulating wall engineering method of application hard polyurethane foam composite plates as heat insulating material,, long service life high by the external heat insulating wall construction bonds intensity of this construction method, it has insulation, heat insulation, anti-crack and anti-seepage water, wind resistance take off the feature come off.
For reaching above-mentioned purpose, technical scheme of the present invention is achieved in that
The external heat insulating wall engineering method of application hard polyurethane foam composite plates, comprises the steps:
1) leveling layer is made in plinth course surface pulp sweeping outside, and pulp sweeping material is cement mortar.
2) hanging wire, snap the line, lattice, boring on leveling layer
Carrying out cellular snap line according to leveling layer situation, hang vertical reference line, eject floor levels line and window line, also holes in mark anchoring piece position.
3) hard polyurethane foam composite plates starching
The adhesive mortar point frame method being mixed with polypropylene fibre spread upon on every block hard polyurethane foam composite plates bottom surface by trowel, application area accounts for 40% ~ 60% of plate area.
The adhesive mortar being mixed with polypropylene fibre is on self-control adhesive mortar basis, obtain with the polypropylene fibre evenly mixing 0.80Kg in every cubic metre of self-control adhesive mortar, the pencil monfil that polypropylene fibre is length is 9mm, filament number is 10dtex ~ 12dtex, wherein, making its formula of adhesive mortar by oneself is in mass ratio:
Sand: EVA latex powder: water: mixture=100 of cement and levigate limestone: 0.5: 42: 100, in the mixture, its mass ratio of cement accounts for 95%, and the mass ratio of levigate limestone accounts for 5%.
4) hard polyurethane foam composite plates is rubbed to paste and is laid in the lattice district of leveling layer by block-by-block from top to bottom, plate facade verticality is ensured with plumbing method when being sticked, the planeness of plate is ensured by bracing wire method, adjust interplate joint gap, rub after pasting laying, stamp stealthy fastening clip at plate side in addition temporary fixed, wait adhesive mortar sclerosis that this is mixed with polypropylene fibre.
5) crab-bolt is fixed
Being assisted by sticky real firmly hard polyurethane foam composite plates block-by-block by the mode of crab-bolt anchoring is fixed on leveling layer, then removes stealthy fastening clip.
6) interplate seam carries out filleting process
Adopt sealing agent of single component polyurethane foam to carry out spraying filleting at interplate seam crossing, wait solidification.
7) interplate seam mouth plays glue jointing
Adopt waterproof-weather resistant silicone sealant that interplate seam mouth is carried out jointing, seal with shutoff.
8) removing surface and maintenance.
Above-mentioned self-control adhesive mortar is prepared by following steps:
First sand and EVA latex powder put into agitator by proportioning and stir with electric mixer, then add part water to continue to stir, after sand is completely by EVA latex powder parcel, drop into cement, levigate limestone again, and pour residue water into, abundant stirring 10 minutes, leaves standstill 5 minutes after stirring.
Above-mentioned hard polyurethane foam composite plates is that top layer has finish coat, intermediate layer is rigid polyurethane foam layer and bottom has the integrated plate integrating insulation, waterproof and decoration functions of two pieces of fiberglass gridding cloth layers.
Compared with prior art, beneficial effect of the present invention is as follows:
Adopt the adhesive mortar being mixed with polypropylene fibre as the adhesives between hard polyurethane foam composite plates and leveling layer in the present invention.Wherein, each component reasonable mixture ratio in self-control adhesive mortar, EVA latex powder improves the microstructure of adhesive mortar to a certain extent, significantly improve the adhesive property of adhesive mortar self, toughness, shrinkage factor, water-resistance and thermal insulation, make it hard polyurethane foam composite plates and leveling layer can better be bonded together, not only plate tensile strength is high, and is conducive to preventing plate from laying out existing slippage, improves construction operation; Polypropylene fibre has good intensity, resistance to acids and bases is excellent, resistance to ag(e)ing is strong, polypropylene fibre bonds with cement mortar equably, improve the fracture toughness of adhesive mortar of the present invention, effect can be played for a long time, polypropylene fibre and levigate limestone use in right amount in cement mortar, effectively can control mortar because plastic shrinkage is dry and cracked or shrinkage crack caused by the change such as temperature, suppress the development in crack, compressive strength improves, and makes that mortar toughness improves, fragility reduces, and improves impervious, cracking resistance and the weather resistance of mortar.
Polypropylene fibre adopts the pencil monfil that length is 9mm, filament number is 10dtex ~ 12dtex, not easily conglomeration, is conducive to compatibility and is uniformly distributed in well in self-control adhesive mortar, form gold-plating and admittedly act on.
By waterproof-weather resistant silicone sealant, indirect for plate sealing is played glue jointing, seam mouthpiece after shutoff sealing is standby waterproof, weather-proof ability, and high-low temperature resistant, corrosion-resistant, there is the good ability of bearing seam displacement, not ftractureing when bearing joint gap change for a long time.
Sealing agent of single component polyurethane foam is adopted to carry out the process of lattice filleting in hard polyurethane foam composite plates surrounding, elastic foam filleting after adhesive solidification not only defines waterproof in hard polyurethane foam composite plates surrounding, fire prevention, insulation cage ring, and in an unbroken line cage-ring type foam filleting have shrink little, high expansion, the advantage that elasticity is large, slow down plate seam place stress thus, avoid because positive and negative blast causes extruding mutually between plate to cause plate seam place to ftracture, after being coated with waterproof-weather resistant silicone sealant at its external surface, this elastic foam filleting is 10 years application life.
[detailed description of the invention]
Just the present invention is described in further detail below.
The external heat insulating wall engineering method of application hard polyurethane foam composite plates, comprises the steps:
1, leveling layer is made in plinth course surface pulp sweeping outside, and pulp sweeping material is cement mortar.
Outer plinth course should be solid, smooth, dry, clean.First clean out the dust on outer plinth course, the coating of dirt, efflorescence, putty layer and alice etc., then use cement mortar screeding.Cement in cement mortar and the mass ratio of sand are 1: 3, and leveling layer requires: planeness allowable variation is 3 millimeters, and facade verticality allowable variation is 5 millimeters.
2, hanging wire, snap the line, lattice, boring on leveling layer
Carry out cellular snap line according to leveling layer situation, hang vertical reference line, eject floor levels line and window line, also holing in mark anchoring piece position, guarantees anchorage depth by leveling layer until outer plinth course.
General outer plinth course place hole depth 35 ~ 40mm, makes effective anchorage depth >=25mm, when foundation wall be sand aerating or fly ash aerated building block time, the plastic anchor bolt of effective anchorage depth >=50mm should be adopted; When foundation wall be building-block or porous brick time, anchoring piece should adopt to have back twists the plastic anchor bolt of knotting function.
3, hard polyurethane foam composite plates starching
By trowel, the adhesive mortar point frame method being mixed with polypropylene fibre is spread upon on every block hard polyurethane foam composite plates bottom surface, application area accounts for 40% ~ 60% of plate area, meet design requirement with the effective bond area meeting plate to be laid and leveling layer, when depth of building is at more than 60m, application area should not be less than 60% of plate area.
The adhesive mortar being mixed with polypropylene fibre is on self-control adhesive mortar basis, obtain with the polypropylene fibre evenly mixing 0.80Kg in every cubic metre of self-control adhesive mortar, the pencil monfil that polypropylene fibre is length is 9mm, filament number is 10dtex ~ 12dtex.
Wherein, making its formula of adhesive mortar by oneself is in mass ratio: sand: EVA latex powder: water: mixture=100 of cement and levigate limestone: 0.5: 42: 100, in the mixture, its mass ratio of cement accounts for 95%, and the mass ratio of levigate limestone accounts for 5%.
The preparation process of self-control adhesive mortar is as follows:
First sand and EVA latex powder are put into agitator by quality proportioning, stir with electric mixer, then add part water to continue to stir, after sand is completely by EVA latex powder parcel, drop into cement, levigate limestone again, and pour residue water into, fully stir 10 minutes, leave standstill 5 minutes after stirring, obtain making adhesive mortar by oneself.
2 ~ 3 minutes are again stirred by electric mixer before self-control adhesive mortar uses, add polypropylene fibre while stirring, make it be dispersed in self-control adhesive mortar, obtain being mixed with polypropylene fibre adhesive mortar must be finished in 1.5 ~ 4h when coming into operation.
The model that EVA latex powder adopts Dalian, Taiwan chemistry limited company to produce is the EVA latex powder of DA1220.
4, hard polyurethane foam composite plates is rubbed to paste and is laid in the lattice district of leveling layer by block-by-block from top to bottom, plate facade verticality is ensured with plumbing method when being sticked, ensure the planeness of plate by bracing wire method, adjust interplate joint gap, the seam discrepancy in elevation should control in 1mm.Rub after pasting and laying, stamp stealthy fastening clip at plate side in addition temporary fixed, after about 24h (depending on weather conditions), this is mixed with the adhesive mortar sclerosis of polypropylene fibre.
5, crab-bolt is fixed
Assist by sticky real firmly hard polyurethane foam composite plates block-by-block by the mode of crab-bolt anchoring is fixed on leveling layer, the stealthy fastening clip afterwards in dismounting step 4.
6, interplate seam carries out filleting process
Sealing agent of single component polyurethane foam is injected into interplate seam crossing to carry out filleting in inhalator jar, waits the foam elastomer being solidified into uniform foam cell.
Sealing agent of single component polyurethane foam is purchased from Guangzhou City Antas Chemical Co., Ltd..
7, interplate seam mouth plays glue jointing
Adopt waterproof-weather resistant silicone sealant interplate seam mouth shutoff seal, the silicone sealant after shutoff is full, closely knit, connect even, bubble-free and skinning.
Waterproof-weather resistant silicone sealant is purchased from Zheng Zhou Zhongyuan Applied Technology Research & Development Co., Ltd.
8, removing surface and maintenance.
Should clean plate face in time after above-mentioned operation to be done, to the position that may be collided, should take temporary protection measure, enter curing time afterwards, curing time is approximately 5-7 days, can come into operation after maintenance.
The hard polyurethane foam composite plates that this engineering method adopts is that top layer has finish coat, intermediate layer is rigid polyurethane foam layer and bottom have two pieces of fiberglass gridding cloth layers integrated board.Wherein, finish coat can be the dull and stereotyped fluorine resin coating type of SAND SLURRY SYNTHETIC EMULSION ARCHITECTURAL COATINGS type, metal sheet fluorine resin coating type or fiber cement.
Hard polyurethane foam composite plate be under the batch production state of specialty after compound through cutting into bulk, it integrates insulation, waterproof and decoration functions.

Claims (3)

1. apply an external heat insulating wall engineering method for hard polyurethane foam composite plates, it is characterized in that comprising the steps:
1) leveling layer is made in plinth course surface pulp sweeping outside, and pulp sweeping material is cement mortar;
2) hanging wire, snap the line, lattice, boring on leveling layer
Carrying out cellular snap line according to leveling layer situation, hang vertical reference line, eject floor levels line and window line, also holes in mark anchoring piece position;
3) hard polyurethane foam composite plates starching
The adhesive mortar point frame method being mixed with polypropylene fibre spread upon on every block hard polyurethane foam composite plates bottom surface by trowel, application area accounts for 40% ~ 60% of plate area,
The adhesive mortar being mixed with polypropylene fibre is on self-control adhesive mortar basis, obtain with the polypropylene fibre evenly mixing 0.80Kg in every cubic metre of self-control adhesive mortar, the pencil monfil that polypropylene fibre is length is 9mm, filament number is 10dtex ~ 12dtex, wherein, making its formula of adhesive mortar by oneself is in mass ratio:
Sand: EVA latex powder: water: mixture=100 of cement and levigate limestone: 0.5: 42: 100, in the mixture, its mass ratio of cement accounts for 95%, and the mass ratio of levigate limestone accounts for 5%;
4) hard polyurethane foam composite plates is rubbed to paste and is laid in the lattice district of leveling layer by block-by-block from top to bottom, plate facade verticality is ensured with plumbing method when being sticked, the planeness of plate is ensured by bracing wire method, adjust interplate joint gap, rub after pasting laying, stamp stealthy fastening clip at plate side in addition temporary fixed, wait adhesive mortar sclerosis that this is mixed with polypropylene fibre;
5) crab-bolt is fixed
Being assisted by sticky real firmly hard polyurethane foam composite plates block-by-block by the mode of crab-bolt anchoring is fixed on leveling layer, then removes stealthy fastening clip;
6) interplate seam carries out filleting process
Adopt sealing agent of single component polyurethane foam to carry out spraying filleting at interplate seam crossing, wait solidification;
7) interplate seam mouth plays glue jointing
Adopt waterproof-weather resistant silicone sealant that interplate seam mouth is carried out jointing, seal with shutoff;
8) removing surface and maintenance.
2. external heat insulating wall engineering method according to claim 1, is characterized in that described self-control adhesive mortar is obtained by following preparation process:
First sand and EVA latex powder put into agitator by proportioning and stir with electric mixer, then add part water to continue to stir, after sand is completely by EVA latex powder parcel, drop into cement, levigate limestone again, and pour residue water into, abundant stirring 10 minutes, leaves standstill 5 minutes after stirring.
3. external heat insulating wall engineering method according to claim 2, is characterized in that: described hard polyurethane foam composite plates is that top layer has finish coat, intermediate layer is rigid polyurethane foam layer and bottom has the integrated plate integrating insulation, waterproof and decoration functions of two pieces of fiberglass gridding cloth layers.
CN201410455949.0A 2014-09-04 2014-09-04 The external heat insulating wall engineering method of application hard polyurethane foam composite plates Expired - Fee Related CN104234249B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105569287A (en) * 2015-12-31 2016-05-11 青建集团股份公司 Imitation stone ET plate construction process for outer wall
CN112982871A (en) * 2021-02-18 2021-06-18 广东泰诺节能新材料有限公司 Preparation and construction process of light, thin, energy-saving and strong-adhesion large-size wall panel
CN114135004A (en) * 2022-01-06 2022-03-04 浩伦建工有限公司 Construction method of waterproof and heat-insulating material for building exterior wall

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1584235A (en) * 2004-06-14 2005-02-23 刘恩生 Constructing process for wall external thermal insulative layer expanding polyphenyl board
CN1737285A (en) * 2005-09-08 2006-02-22 夏良强 Technique for fabricating hard bubble polyurethane composite plate exterior wall outer thermal insulation system
JP2006183341A (en) * 2004-12-28 2006-07-13 Yoshiyuki Hayakawa Outer wall member for external thermal insulation and its installation method
CN101109212A (en) * 2006-07-20 2008-01-23 夏良强 Method for manufacturing rigid foam polyurethane heat preserving system
CN101806128A (en) * 2010-03-17 2010-08-18 山东德宝建筑节能技术有限公司 Construction method for adhering polyurethane adhesive on wall heat preservation decoration integrative plate
CN103588445A (en) * 2013-11-15 2014-02-19 江苏蓝圈新材料有限公司 Anti-crack polymer mortar

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1584235A (en) * 2004-06-14 2005-02-23 刘恩生 Constructing process for wall external thermal insulative layer expanding polyphenyl board
JP2006183341A (en) * 2004-12-28 2006-07-13 Yoshiyuki Hayakawa Outer wall member for external thermal insulation and its installation method
CN1737285A (en) * 2005-09-08 2006-02-22 夏良强 Technique for fabricating hard bubble polyurethane composite plate exterior wall outer thermal insulation system
CN101109212A (en) * 2006-07-20 2008-01-23 夏良强 Method for manufacturing rigid foam polyurethane heat preserving system
CN101806128A (en) * 2010-03-17 2010-08-18 山东德宝建筑节能技术有限公司 Construction method for adhering polyurethane adhesive on wall heat preservation decoration integrative plate
CN103588445A (en) * 2013-11-15 2014-02-19 江苏蓝圈新材料有限公司 Anti-crack polymer mortar

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105569287A (en) * 2015-12-31 2016-05-11 青建集团股份公司 Imitation stone ET plate construction process for outer wall
CN112982871A (en) * 2021-02-18 2021-06-18 广东泰诺节能新材料有限公司 Preparation and construction process of light, thin, energy-saving and strong-adhesion large-size wall panel
CN114135004A (en) * 2022-01-06 2022-03-04 浩伦建工有限公司 Construction method of waterproof and heat-insulating material for building exterior wall

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