挤塑聚苯乙烯泡沫板外墙保温
施工方案
编制单位：中建八局大连公司
编 制 人：刘大为 李鹏飞 李福勇
中国建筑第八工程局 2003 年 6 月
目 录
1 工程概况 ··········································································································1
2 材料组成 ··········································································································1
3 施工要求及条件 ······························································································1
4 施工工具 ··········································································································2
5 工艺流程 ··········································································································2
5．1 基层清理······································································································2
5．2 配制砂浆······································································································3
5．3 刷专用界面剂一道 ······················································································3
5．4 预粘板端翻包网格布 ··················································································3
5．5 粘贴挤塑板 ··································································································3
5．6 安装固定件 ··································································································6
5．7 打底··············································································································8
5．8 滴水槽··········································································································8
5．9 设置伸缩缝 ··································································································9
5．10 涂刷专用界面剂 ························································································9
5．11 抹第一遍面层聚合物抗裂砂浆·································································9
5．12 埋贴网格布 ································································································9
5．13 抹面层聚合物抗裂砂浆 ··········································································11
6 细部及特殊部位做法·····················································································14
7 安全措施 ········································································································16
8 文明施工及成品保护·····················································································17
9 成本降低措施 ································································································17
10 环境保护措施 ······························································································18
1 工程概况
沈阳克莱斯特国际外商公寓工程位于沈阳市皇姑区黄河南大街 38 号，占地面积 76000m2，是由 10 个高层建筑和一个多层建筑组成的高层商、住楼群。工程总建筑面积 365000m2。
本工程高层楼体外墙采用挤塑聚苯乙烯泡沫板为主要保温隔热材料，以粘、
钉结合方式与墙身固定，抗裂砂浆复合耐碱玻纤网格布为保护增强层，涂料饰面 的外墙保温系统。下面以最早封顶的 9 号楼为例，编制外墙保温施工方案。
2 材料组成
2.1 挤塑聚苯乙烯泡沫板
规格为 1200mm×600mm×40mm，平头式，阻燃型，表观密度 25～32kg/m3， 尺寸收缩率小于 1.5%，吸水率小于 1.5%。
2.2 专用聚合物粘结、面层砂浆 厂家已配制好，现场施工时加水用手持式电动搅拌机搅拌，重量比为水:聚合物砂浆等于 1:5，可操作时间不小于 2h。
2.3 固定件采用自攻螺栓配合工程塑料膨胀钉固定挤塑聚苯乙烯泡沫板，要求单个固定件的抗拉承载力标准值不小于 0.6kN。
2.4 耐碱玻纤网格布
用于增强保护层抗裂及整体性；孔径 4mm×4mm，宽度 1000mm，每卷长 度 100000mm。
2.5 聚乙烯泡沫塑料棒
用于填塞膨胀缝，作为密封膏的隔离背衬材料，其直径按缝宽的 1.4 倍选用。
3 施工要求及条件
3.1 经业主、监理、总包、外保温施工单位联合验收的 9 号楼外墙体（可分 段进行）垂直、平整度满足规范要求，门窗框安装到位，飘窗、阳台栏板、挑檐 等突出墙面部位尺寸合格，办理交接单后即可进行施工。
3.2 雨天施工时，须采取有效防雨措施，防止雨水冲刷刚施工完但粘结砂浆 或面层聚合物砂浆尚未初凝的墙面。
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3.3 施工现场环境温度及找平层表面温度在施工中及施工后 24h 内均不得低
于 5℃，风力不大于 5 级。
3.4 外墙保温伸缩缝沿建筑物高度每 6 层设置一道，即在 6 层、12 层、18 层、24 层的大墙面设 10mm 宽水平分格缝，飘窗及阳台处不设；具体设置位置 为：分格缝的上口与该层飘窗窗台底面保温层的底面等标高。
4 施工工具
电热丝切割器或壁纸刀（裁挤塑板及网格布用）、电锤（拧胀钉螺钉及打膨
胀锚固件孔用）、根部带切割刀片的冲击钻钻头（为放固定件打眼用，切割刀片 的大小、切入深度与膨胀钉头一致）、手持式电动搅拌器（搅拌砂浆用）、木锉或 粗砂纸（打磨用）、其他抹灰专用工具。
5 工艺流程
基层清理
刷专用界面剂
配专用聚合物粘结砂
预粘板边翻包网格布 粘贴挤塑板 钻孔安装固定件
挤塑板打磨、找平、清洁
中间验收
拌制面层聚合物砂浆
刷一遍专用界面剂
抹底层聚合物砂浆
粘贴网格布
抹面层聚合物抗裂砂浆 分格缝内填塞内衬、封密封胶
验收
5.1 基层清理
5.1.1 清理混凝土墙面上残留的浮灰、脱模剂油污等杂物及抹灰空鼓部位等。
5.1.2 剔除剪力墙接槎处劈裂的混凝土块、夹杂物、空鼓等，并重新进行修 补；窗台挑檐按照 2%用水泥砂浆找坡，外墙各种洞口填塞密实。
5.1.3 要求粘贴挤塑板表面平整度偏差不超过 4mm，超差时对突出墙面处进 行打磨，对凹进部位进行找补（需找补厚度超过 6mm 时用 1﹕2.5 水泥砂浆抹灰， 需找补厚度小于 6mm 时由保温施工单位用聚合物粘结砂浆实施找补；确保整个墙面的平整度在 4mm 内，阴阳角方正、上下通顺。
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5.2 配制砂浆
5.2.1 施工使用的砂浆分为专用粘结砂浆及面层聚合物抗裂砂浆。
5.2.2 施工时用手持式电动搅拌机搅拌，拌制的粘结砂浆重量比为水:砂浆
=1:5，边加水边搅拌；搅拌时间不少于 5min，搅拌必须充分、均匀，稠度适中， 并有一定黏度。
5.2.3 砂浆调制完毕后，须静置 5min，使用前再次进行搅拌，拌制好的砂浆 应在 1h 内用完。
5.3 刷专用界面剂一道
为增强挤塑板与粘结砂浆的结合力，在粘贴挤塑板前