某高层住宅外墙保温施工方案.doc

*J2地块7#楼外墙保温施工方案 目 录1工程概况 ····························································································32材料性能及要求··················································································33施工条件环境要求··············································································54施工机械及工具 ················································································55工艺流程 ····························································································651 基层清理·······················································································752 吊顺直线·······················································································753 配制水泥砂浆 ··············································································754 水泥砂浆抹灰施工 ······································································755 配制粘结砂浆···············································································756 排板·······························································································857 粘贴聚苯板施工············································································958 施工要点························································································1059 特殊部位施工················································································12510 锚固件安装··················································································15511 抹面层施工··················································································15512 质量控制·····················································································166 人力资源管理··························································································167 安全生产保证措施 ·················································································168文明施工及成品保护·············································································181、工程概况*J2地块7#楼工程，工程地址位于*市*部，东靠*，南面*号路，西面*路，北接*公园。7#楼工程为地下2层，地上25层的框架剪力墙结构。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。 2、材料性能及要求2.1 保温材料2.1.1 聚苯板（EPS板）的性能除符合绝热用模塑聚苯乙烯泡沫塑料GB/T10801.1标准的规定外，还应符合表1的要求。2.1.2 EPS板的规格为 1200mm×600mm×45mm，平头式，阻燃型，其尺寸偏差应符合表2的要求。2.1.2 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。2.2 水泥拌合在胶粘剂和抹面胶浆中的水泥应采用普通硅酸盐水泥或低碱硫铝酸盐水泥。普通硅酸盐水泥应符合硅酸盐水泥、普通硅酸盐水泥GB175的要求。硫铝酸盐水泥应符合快硬硫铝酸盐水泥JC933的要求。EPS板技术性能指标 表1检验项目技术指标表观密度，kg/m318.022.0垂直于板面方向的抗拉强度，MPa0.10且破坏部位不得位于粘贴界面尺寸稳定性（700C,48h）,%0.3导热系数，W/（m·K）0.041压缩性能（形变10%），MPa0.10燃烧性能氧指数，%30燃烧等级E级养护时间，d自然养护42蒸汽养护（600C）5EPS板尺寸允许偏差 表2检验项目厚度长度宽度对角线差板边平直板面平整度50>50允许偏差（mm）+1.5+2.0+2.0±1.03.0±2.01.02.3 专用聚合物粘结剂、抹面胶浆厂家已配制好，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。其中胶粘剂性能指标应符合L07J110表3的要求，抹面胶浆应符合L07J110表5的要求。2.4锚栓金属螺钉应采用不锈钢或经过表面防锈处理的金属制成，塑料钉和带圆盘的塑料膨胀套管应采用聚酰胺、聚乙烯或聚丙烯制成，制作塑料钉和塑料套管的材料不得使用回收的再生材料。锚栓的有效锚固深度在混凝土墙中不小于25mm，在砌体墙中不小于50mm，塑料圆盘直径不小于50mm，单个锚栓抗拉承载力标准值不小于0.3KN，且应进行拉拔力现场试验。2.4 耐碱玻纤网格布用于增强保护层抗裂及整体性；选用孔径 4mm×4mm的耐碱玻纤网格布，其性能指标应符合耐碱玻璃纤维网布JC/T841的要求外，还应符合L07J110表4的要求。3施工条件环境要求3.1 施工条件3.1.1主体验收通过，外墙已满足施工工作面要求。3.1.2材料进场，施工队伍已选定，并进场。项目部对其进行安全教育和安全、技术交底工作完毕。3.1.3外用吊蓝安装调试完毕。3.1.4相关材料产品合格证书、性能检测报告等相关资料齐全，并合格。墙体节能工程使用的保温隔热材料进场后，应在监理（建设）单位的见证下取样，并送至有资质的检测机构进行进场复验。进场复验应符合下列要求： 1）复验项目 、保温材料的导热系数、表观密度、抗压强度或压缩强度和燃烧性能； 、粘结材料的粘结强度； 、增强网的力学性能、抗腐蚀性能。2）检验数量  同一厂家、同一品种产品，当单位工程建筑面积在20000m²以下时各抽查不少于3次；当单位工程建筑面积在20000m²以上时各抽查不少于6次。3.2 环境要求3.2.1 外墙外保温工程施工期间以及完工后24h内，基层及环境空气温度不应低于5。夏季应避免阳光曝晒。3.2.2 在5级以上大风天气和雨天不得施工。4施工机械及工具4.1施工机械 外用吊蓝，选用ZLP630型号吊篮。选用型号其主要参数如下：型号ZLP630额定载荷(kg)630升降速度(m/min)9-11额定功率(kW)1.5×2工作平台尺寸长×宽×高(mn)6000×690×1230配重(kg)900外用吊篮应有产品合格证书、出场证明等相关资料。根据现场要求计划投入4台上述外用吊篮就以满足施工要求。这样既可以满足流水作业，亦能保证施工进度要求。4.2施工工具壁纸刀、电锤、手持式电动搅拌器、抹子、角抹子、靠尺、刷子、灰浆托板、拉线、米尺、毛辊、手锤、钳子、电热丝切割器、开槽器等。5工艺流程 基层清理吊铁丝顺直线（间距1.5m）根据顺直线打20mm厚灰饼（间距1.5×1.5m）配制1：3水泥砂浆 水泥砂浆找平层施工拌制粘结聚合物砂浆（胶粉聚苯颗粒保温砂浆）粘贴45厚（20厚）聚苯板部分造型梁顶面及侧面抹20厚胶粉聚苯颗粒保温砂浆细部处理钻孔安装固定件挤塑板打磨、找平、清理中间验收拌制面层聚合物砂浆刷一遍界面剂抹35厚抹面胶浆中间压入耐碱玻纤网格布分格缝内填塞内衬、封密封胶验收5.1 基层处理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；外墙各种洞口填塞密实。5.2 吊顺直线5.2.1 选择无风的好天气在女儿墙顶间距1.5米吊铁丝线，并做好墙面2cm的顺直控制线，并在中间适当位置固定以防止线太长因风吹误差过大。5.2.3 乘坐吊笼自上而下打灰饼，间距1.5×1.5m。5.3 配制水泥砂浆5.3.1 施工时用砂浆搅拌机搅拌1：3的水泥砂浆。搅拌时间不少于 2min，搅拌必须充分、均匀，稠度适中。5.3.2 水泥砂浆搅拌应随拌随用，并应在 3h 内用完。5.4水泥砂浆抹灰施工水泥砂浆拌制后应自上而下分段抹灰施工，要求抹牢，应无明显抹纹。施工过程中不得垂直交叉作业，严禁自下而上作业以防止施工过程中污染已施工完毕的墙体。抹灰24小时后检查是否有空鼓现象。如有超过200c空鼓，应及时处理。抹灰后的墙体平整度应控制在3以内（2米范围内）。并要求阴阳角方正、上下通顺。5.5 配制粘结砂浆5.5.1 施工使用的砂浆分为专用粘结砂浆、胶粉聚苯颗粒保温砂浆及面层聚合物抗裂砂浆。5.5.2 施工时可用砂浆搅拌机或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。5.5.3