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外墙保温砂浆施工有哪些技术要点及注意

时间:2016-07-19     作者:www.kgb27.com【原创】   阅读

建筑外墙体的保温性能对整个建筑物的室内热环境具有重要的影响,而目前工程上常用的一种外墙保温材料是保温砂浆。它是一种新型外墙外保温材料,其具有自重轻、隔热保温和隔音性能优良、抹灰表面无裂缝、施工劳动强度低、较其它外墙保温材料价格低等优点。笔者根据多年的工程经验,就外墙保温的施工技术及注意事项做简单地介绍。
Building external wall thermal insulation performance of the entire building indoor thermal environment has an important influence, and at present commonly used in engineering is a kind of exterior wall thermal insulation material thermal insulation mortar. It is a new type of external thermal insulation material, it has weightLight, excellent heat insulation and sound insulation performance, the surface of the plaster no cracks, construction, low labor intensity, low price advantages than other exterior wall thermal insulation materials. The author based on years of experience in engineering, construction technology and matters needing attention of exterior wall thermal insulation to introduce simply.

①墙面应清理干净无油渍、浮尘等。墙表面局部凸起物大于10mm时应铲平。
1) wall should be cleaned up without oil stain, dust, etc. Local bump wall surface is greater than 10 mm should be razed.

②施工前一天基层应浇水湿润,施工时基层不应过湿。
(2) the day before construction should be water wet at the grassroots level construction at the grass-roots level should not be too wet.

③基层应满涂界面砂浆,弹厚度控制线,拉水平、垂直通线,按厚度线用用胶粉聚苯颗粒保温砂浆作标准厚度灰饼冲筋。
(3) at the grass-roots level shall be filled with coating interface mortar, the thickness of the elastic line, horizontal and vertical lines, according to the thickness of the line to use powder polystyrene particles insulation mortar for standard screed thickness ash cake.

④界面砂浆的配置:界面砂浆按粉料:水=5:1比例配置。砂浆稠度为6cm~8cm左右。混合好的砂浆应陈化5min~10min后再用,用前再适当搅拌。
(4) the configuration of the interface mortar: interface mortar powder: water = 5 to 1 ratio configuration. Mortar consistency is 6 cm ~ 8 cm. Mixture mortar should reoccupy after 5 min to 10 min hua, appropriately again stir before use.

⑤胶粉聚苯颗粒保温砂浆的配置:先将64kg~70kg水倒入搅拌机内,然后倒入四袋胶粉料(重20×4=80kg)搅拌3min~5min,再逐渐倒入
(5) powder polystyrene particles insulation mortar configuration: first the 64 kg to 70 kg of water in a blender, then pour into four bags of powder material (20 * 4 = 80 kg weight) stir 3 min ~ 5 min, then gradually pour in

5袋聚苯颗粒(80L)继续搅拌3min~5min,物料拌匀后倒出(胶粉料完全包裹颗粒,颜色均匀一致),保温砂浆应随拌随用,在4h内用完。
5 bags of polystyrene particles (80 l) continue to stir 3 min ~ 5 min, material mix well after pouring (powder material completely wrapped particles, uniform color), insulation mortar increases with the increasing mix should use, finished within 4 h.

⑥抗裂砂浆的配置:抗裂砂浆按粉料:水=5:1比例配置。砂浆稠度为6cm~8cm左右。混合好的砂浆应陈化5min~10min后再用,用前再适当搅拌,这样能保证干粉砂浆中粉状外加剂充分溶解,性能稳定均匀。
6 anti-crack mortar configuration: anti-crack mortar powder: water = 5:1 proportion configuration. Mortar consistency is 6 cm ~ 8 cm. Mixture mortar should reoccupy after 5 min to 10 min hua, with proper stirring, before this can guarantee the powder in the dry mortar admixture dissolves, stable performance.

⑦保温隔热层施工:施工前应安排用保温隔热砂浆做标准饼然后冲筋,其厚度以墙面最高处抹灰厚度不小于设计厚度为准,并进行垂直度检查。阳角、门窗口处用1:2.5水泥砂浆作出宽50mm的护角。
All landowners thermal insulation layer construction: construction should be arranged before the use of thermal insulation mortar in standard bread then screed, its thickness is designed with wall thickness of the top rendering not less than the thickness of shall prevail, and check the vertical degree. Yang Angle by 1:2, door window. 5 cement mortar to 50 mm wide Angle bead.

⑧抹胶粉聚苯颗粒保温砂浆,应根据设计要求分层进行,本住宅小区工程外墙保温层厚度为2.5cm,分两次涂抹完成。涂抹时用力要适度。抹刀与施工面夹角不
End up with powder polystyrene particles insulation mortar, layered, should according to the design requirements of the residential area of external thermal insulation layer thickness of 2.5 cm, two daub is complete. When daub the strength should be moderate. Face Angle not spatula and construction
要太大,速度应缓慢。转角墙端保温砂浆应压实,以免空鼓。抹完保温层30min后(具体时间视温度、湿度大小而变)再用抹子压实赶光。
To is too big, should be slow. Corner side wall thermal insulation mortar should be compacted to avoid empty drum. Wipe after 30 min insulation layer (the specific time depending on the size of the temperature and humidity change) with a trowel compaction catch the light.

⑨抗裂砂浆施工前应检查水、电、门、窗、栏杆、空调管、煤气管等的预埋件全部完成后方可(来源:中国保温网)施工下道工序,否则会造成保温系统的破坏,导致该处渗水、起鼓等质量问题。抗裂砂焊网,热浆施工时,如墙面过于干燥,可用扫帚蘸水湿润墙面,然后在保温层上涂3mm~4mm抗裂砂浆。隔天后铺设热镀锌电焊网,热镀锌电焊网由加长塑料栓固定,设计要求每平方米锚栓布设六个,锚栓布点采用梅花形均匀布置,水平、垂直方向相邻锚栓间距为47cm。特殊部位和搭接处应增加锚栓。镀锌电焊网应铺设平整,翘曲部位用U形铅丝卡牢,待门、窗框安装完毕经检查合格后再涂抹最后一道6mm~7mm抗裂砂浆,用木抹搓平,并压实赶光,抗裂砂浆面层要求平整,如超过允许误差值,须用抗裂砂浆修正,局部修补区域均须用抗裂砂浆修补,否则会导致两种材料因温差引起不同收缩而产生裂缝,从而导致墙面渗水。应做好抗裂砂浆的防护,24h内严禁水冲、撞击。养护7d后,即可进行面层装饰施工。
Pet-name ruby anti-crack mortar before construction should check water, electricity, door, window, rail, air conditioning pipe, gas pipe and other embedded parts of the complete rear can (source: China insulation network) under the construction process, otherwise it will cause the destruction of the insulation system, causes it ooze water, a drum, etcQuantity problem. Crack sand wire welding, thermal plasma construction, such as metope is too dry, can dip in with the broom water wet metope, then daub on the insulation layer 3 mm ~ 4 mm anti-crack mortar. The next day after the laying of hot dip galvanized welded wire mesh, galvanized electricWelding net by lengthening the plastic bolt is fixed, the design requirements of every square metre of anchor bolt setting six by adopting quincunx uniform anchor points arrangement, horizontal and vertical direction adjacent anchor spacing of 47
The cm. Special place and it should increase the anchor bolt. Galvanized welded wire mesh should be laid flat, the warping parts with u-shaped lead wire card in mind, for door, window frame installed qualified through inspection before daub a final 6 mm to 7 mm crack sandUse wood pulp and flat, and compaction cast light, anti-crack mortar flat surface requirement, such as more than permissible error values, must use the anti-crack mortar correction, local repair area shall be repaired with anti-crack mortar, otherwise it will lead to two kinds of materials for temperature differenceThe different shrinkage and cracks, resulting in water seepage metope. Should take anti-crack mortar protection, water, the impact is strictly forbidden in 24 h. Maintenance after 7 d, surface decoration construction can be achieved.

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