基层对线条保温浆料配套结构.docx
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基层对线条保温浆料配套结构.docx
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基层对线条保温浆料配套结构
基层对线条保温浆料配套结构
墙体和保温材料里的水分还没有散发出来,抢工期上防护和装饰层引起长霉、结露现象。
Wallsandinsulationmaterialsinthewaterhasnotbeensendout,robonthetimelimitforaprojectprotectionandadornmentlayercausedbymold,condensationphenomenon.
防治:
根本防治方法是阻断热桥,改善室内湿度死角,保持良好的新风条件如尽量采用外墙外保温;采用苯板条完成对线条的表现处理等。
Preventionandtreatment:
basicmethodofpreventionandcureisblockingheatbridge,improveindoorhumiditycorner,keepgoodairconditionsuchasusingexteriorinsulationasfaraspossible;Usingbenzenelathingfinishdealingwiththeperformanceoflineandsoon.
窗的设计位置:
采用内保温时窗应该靠近墙体的内侧,外保温则应靠近墙体的外侧。
尽量使保温层与窗连接成一个系统以减少保温层与窗体间的保温断点,避免窗洞周边的热桥效应。
Windowdesignoftheposition:
theinsulationwindowshouldclosetothewallofthemedial,externalthermalinsulationshouldbeclosetothewallofthelateral.Trytomaketheinsulationlayerandconnectedintoawindowsysteminordertoreducetheheatpreservationthermalinsulationlayerbetweentheformandbreakpoints,avoidhumanlyscaledsurroundingtheheatbridgeeffect.
窗的设计中还应该考虑窗根部上口的滴水处理和窗下口窗根部的防水设计处理,防止水从保温层与窗根部的连接部位进入保温系统的内部。
Shouldalsoconsiderinthedesignofthewindowundertherootperceptibledropprocessingandwindowmouthrootwindowwaterproofdesignprocessing,topreventthewaterfromtherootsoftheinsulationandwindowconnectionintotheinternalthermalinsulationsystem.
外墙面空鼓、脱落
Themetopeemptydrum,falloff
在保温层与其它材料的材质变换处,因为保温层与其它材料的材质的密度相差过大,这就决定了材质间的弹性模量和线性膨胀系数也不尽相同,在温度应力作用下的变形也不同,极容易在这些部位产生面层的抹灰裂缝。
同时还应该考虑这些部位的防水处理,防止水份侵入到保温系统内,避免因冻胀作用而导致系统的破坏,影响系统的正常使用寿命和系统的耐久性基层结构因素:
Ininsulationmaterialtransformationwithothermaterials,becauseoftheinsulationmaterialwithothermaterialofthedensitydifferenceistoobig,itdeterminestheelasticmodulusandlinearcoefficientofexpansionbetweenthematerialalsoisnotthesame,thetemperaturestressundertheactionofdeformationisalsodifferent,veryeasytosurfacerenderingofthecracksintheseareas.Atthesametimeshouldalsoconsiderthesepartsofthewaterproofprocessing,topreventwaterintrusiontothethermalinsulationsystem,toavoidsystemdamagecausedbyfrostheaveeffect,affectthenormalservicelifeofthesystemandthebasicstructureofthedurabilityofthesystem:
(1)沉降不均匀破坏。
在较长、较大建筑物结构伸缩缝附近,造成保温层空鼓或局部脱落。
(1)unevensubsidence.Neartheexpansionjointislongerthantheother,largerbuildingsstructure,insulationlayeremptydrumorpartialloss.
(2)框架结构砌体变形。
框架结构外墙在砼梁柱和砌体接缝处、易发生因砌体变形而造成的保温层破坏。
(2)theframeworkdeformationofmasonrystructure.Framestructurewallseamsinconcreteandmasonrybeams,easilyhappenedcausedbydeformationofmasonryinsulationdamage.
(3)脚手架洞口等未砌实,形成保温层局部基层不牢而破坏。
(3)theholeisnotbuildbylayingbricksorstonessuchasscaffold,insulationlayerformedlocalgrassrootsricketyanddestruction.
(4)外墙装饰构件固定不牢、移位,形成推拉作用,致使保温层局部空鼓、裂纹后长期渗水,出现空鼓或局部脱落。
(4)theouterwalldecorationcomponent,shift,formthepushandpull,theinsulationpartialemptydrum,crackafterlong-termwaterseepage,emptydrumsorpartialloss.
2)保温构造层因素:
2)insulationstructuralfactors:
(1)保温板保温层。
找平砂浆与主体墙空鼓,特别是长时间渗水,容易发生持续性空鼓扩大,使保温层连带空鼓或局部破坏;保温板表面荷载过大,极易直接剥离保温层造成脱落;对负风压抵抗措施采用不合理,如在沿海地区或高层建筑外墙采用非钉粘结合的不合理的粘贴方式,极易形成某些保温板块被风压破坏而空鼓、脱落;建筑装饰造型构造由于羟丙基甲基纤维素和周围构造形成较大的应力结构而发生裂纹、空鼓、长期渗水、冻胀等,久之形成空鼓或脱落。
(1)insulationboardinsulationlayer.Levelingmortarandemptydrumbodywall,especiallythelongtime,easytoproducedurativeemptydrum,theinsulationjointemptydrumorlocalfailure;Insulationboardsurfaceloadistoolarge,easytostrippinginsulationdirectlycausedfalloff;Onunreasonablenegativewindpressureresistancemeasuresadopted,suchasincoastalareasorhigh-risebuildingouterwalladoptsanailstuckincombinationwithunreasonablewayofpaste,easytoformsomedestroyedbywindpressureandtheheatpreservationplateemptydrum,falloff;Architecturaldecorationmodellingstructureduetothestructureandthesurroundingstructuretoformlargerstresscrack,emptydrum,long-termwaterseepage,frostheaving,etc,fortheformationofemptydrumorfalloff.
(2)浆体材料保温层。
墙体界面处理不当,除黏土砖墙外,其他墙体均应用界面砂浆处理后再涂抹浆体保温材料,否则易造成保温层直接空鼓或界面处理材质失效,形成界面层与主体墙空鼓,连带形成保温层空鼓;保温层无有效约束而致荷载破坏,保温层表面荷载较大的,应对保温层进行有效约束,分散荷载承受;浆体保温材料和保温板形成复合保温层界面处理不合理,保温板表面不用界面砂浆处理,也易造成保温层局部空鼓。
(2)slurrymaterialinsulationlayer.Wallinterfaceprocessesimproper,inadditiontotheclaybrickwall,theotherwallapplicationinterfacemortaragainaftertreatmentdaubslurryheatpreservationmaterial,otherwiseeasytocauseinsulationlayeremptydrumdirectlyormaterialprocessinginterfacefailure,formationinterfacelayerwiththeprincipalpartofwallemptydrum,jointforminsulationlayeremptydrum;Insulationwithouteffectiveconstraintandloaddamage,thermalinsulationlayersurfaceloadislarger,dealwiththermalinsulationlayerforeffectiveconstraints,distributedloadtobear;Formacompositeslurryheatpreservationmaterialandinsulationboardinsulationlayerinterfaceprocessingisunreasonable,nointerfacemortarinsulationboardsurfaceprocessing,alsoeasytocauseinsulationpartialemptydrum.
3)保温材料性能因素:
3)thethermalinsulationmaterialperformancefactors:
(1)保温板材:
保温板密度太低,生产时掺入大量再生回收料或粉化严重,使保温板和主体墙形成"假粘"或自身"粉身碎骨"而局部空鼓、脱落;保温板自身应力太大,加之不合理酿酒设备粘贴方式或胀缩等因素,形成负风压造成局部空鼓或保温板损坏。
(1)thethermalinsulationboard,insulationboarddensityistoolow,productionwithalargenumberofregenerationrecyclematerialorseverepulverization,makewallinsulationboardandsubjecttoform"falsestick"or"pieces"andpartialemptydrum,falloff;Insulationboarditselftoomuchstress,coupledwithfactorssuchasunreasonableorswell-shrinkpasteway,formanegativewindpressurecausedbypartialemptydrumorinsulationboarddamaged.
(2)保温浆料:
保温材料质量不合格,极易发生粘接不良或日久失效造成空鼓;胶粉料存放时间过长或受潮初凝使其失效,使用时造成粘接强度降低。
(2)insulationslurryheatpreservationmaterialqualityisunqualified,easilyhappenedadhesivefailurecausedbybadordaylongemptydrum;Powdermaterialstoragetimeistoolong,orbeaffectedwithdampbeaffectedwithdamp,initialsettingtomakeitfailurecausedwhenusinglowerbondingstrength.
4)配套产品因素:
4)products:
(1)保温板粘接胶浆等配套产品:
粘接胶浆和锚钉直接影响保温层的粘接牢固程度,也是当前产生外保温工程质量问题的主要原因。
粘接胶浆种类混杂,无法满足粘接EPS板可靠性要求;吊车胶浆级配不合理造成综合性能下降;锚钉选用不合理造成潜在空鼓,移位或脱落。
(1)insulationboardgluemucilageandothersupportingproducts:
adhesivemortarandgroundanchordirectlyaffectthebondingofinsulationlevel,isalsoamajorcauseofthecurrentexternalthermalinsulationengineeringqualityproblems.Mixedgluemucilagesort,unabletomeettherequirementsofEPSplatebondingreliability;Mucilagegradingisnotreasonablecausecomprehensiveperformancedegradation;Anchornailchoosesunreasonablepotentiallyemptydrum,shiftorfalloff.
(2)浆体保温材料配套产品:
浆体保温层贴砖或与保温板复合时,钢网和主体墙连接产品选择不当形成无效连接。
根据不同墙体应使用专用尼龙钢钉等具有可靠连接效果的配套产品。
(2)slurryheatpreservationmaterialproducts:
thermalinsulationtileorslurryandthecompositethermalinsulationboard,steelmeshandwallbodylinktoincorrectproductformisinvalid.Accordingtothedifferentwallshouldusespecialnylonnailandotheraccessoryproductsofreliableconnectioneffect.
5)施工因素:
5)constructionfactors:
(1)浆体保温层施工影响因素:
基层墙体处理不当,如粘土砖墙未提前淋水湿润直接涂抹时,或未清理表面油污等附着物时,一次涂抹面积过大或速度太快未压实而致局部空鼓;现场造成浆体保温材料级配不合理影响粘接强度,形成施工时局部空鼓或破坏等潜在缺陷;涂抹方法错误易造成局部空鼓发生;违反操作规程施工造成局部空鼓。
(1)theconstructioninfluencefactors:
theslurrywallmishandlingatthegrass-rootslevel,suchasclaybricksarenotwaterspraywetapplydirectlyinadvance,ordidnotcleanupthesurfaceoilandotherattachments,adaubareaistoolargeortoofastancompactionandpartialemptydrum;On-siteslurryheatpreservationmaterialgradationunreasonableinfluencebondingstrength,formconstructionlocalemptydrumordestructivepotentialdefects;Daubmethoderroriseasytocauselocalemptydrumoccurrence;Violationofoperatingproceduresconstructionlocalemptydrum.
(2)粘接EPS板施工因素:
点粘方式时,粘接面积小于30%又无锚钉固定时,形成潜在空鼓松动隐患;条粘方式时,粘接胶浆沟槽部分尺寸太小而弥死,满粘或保温板拼缝用胶浆粘死,形成排水、排气不畅及胀缩应力造成内压剥离性空鼓;钉粘结合方式时,粘接胶浆过稀粘接后马上安装锚钉压力太大,使保温板"变形开胶"假粘合,锚钉与墙形成无效连接,形成潜在破坏可能;人为因素影响:
施工时不负责地采用对某些板不认真涂胶的"花粘"现象;低温或雨雪天气无防护措施强行施工,使粘接层浸水或受冻,而改变性能形成隐患。
(2)bondingEPSboardconstructionfactors:
stickway,abondingareaislessthan30%andnogroundanchorisfixed,theformationofpotentiallooseemptydrumhiddentrouble;Stickway,gluemucilagegroovesectionsizeistoosmallanddeath,andfilledwithglueorinsulationboardflat-fellseamwithdiemucilageglue,formthepoordrainageandexhaustandtheswell-shrinkstresscausedbyinternalpressurestrippingemptydrum;Nailgluecombinationway,gluemucilageinstalledimmediatelyafterdilutedadhesiveanchorspressureistoogreat,maketheinsulationboard"doesdeformationglue"falseglue,boltsandwallformisinvalidconnection,formapotentialdisruptionmay;Humanfactorsinfluence:
constructionisnotresponsiblefortheuseofcertainboardwithoutseriousglue"flowerstick"phenomenon;Temperatureorrainandsnowweatherwithoutprotectivemeasurestoforceconstruction,floodingorseas,theadhesivelayerandchangetheperformanceform.
6)其他影响因素:
6)otherfactors:
(1)保温层施工后,后期门窗、空调、落水管等其他工种的施工安装造成人为破坏。
Lateafter
(1)thethermalinsulationlayerconstruction,doorsandWindows,airconditioning,downpipe,etc.Otherkindsofman-madedamagecausedbyinstallation.
(2)应涂密封胶处未密封,保温层长期渗水浸润受冻。
(2)shouldbethesealingglueisnotsealed,thethermalinsulationlayeroozewaterinfiltrationcoldforalongtime.
(3)其他装修施工时的人为撞击等。
(3)otherdecoratethehumanimpactoftheconstruction,etc.
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- 基层 线条 保温 浆料 配套 结构