HCSA膨胀剂在渤海锦绣城地下车库防水外墙的应用  

Crack resistance and seepage control engineering of underground garage wall in BoHai JinXiu city

作　　者：武旭南[1] 舒为先 舒金涛 傅克镇 郑方杰 韩团结 杭玉勇 舒连峰 巩象顺 

机构地区：[1]中国建筑材料科学研究总院绿色建筑材料国家重点实验室,北京100024 [2]山东省博兴县渤海置业有限公司,滨州256500 [3]博兴县金龙混凝土有限公司,滨州256500 [4]淄博建鲁工程建设项目管理公司,淄博255000

出　　处：《膨胀剂与膨胀混凝土》2012年第1期10-12,15,共4页 Expansive Agents & Expansive Concrete

摘　　要：本文介绍了渤海锦绣城地下车库38～39#楼标段超长结构混凝土防水外墙的收缩裂缝控制技术措施。根据该标段取得的施工经验,认为冷缩应力是外墙早期产生微裂缝的主要原因,同时在混凝土养护期间内,地下车库悬挑顶板上部放置重物和下部钢管支撑拆除过早是产生裂缝的另一原因。根据该标段取得的裂缝控制经验,改进了裂缝控制措施,后续施工的3000多m防水外墙,再未发现裂缝,取得了非常好的应用效果。This paper introduces shrinkage cracks control measurements of outside waterproof walls in 38～39 section super-long underground garage of Bohai Splendid city. Cold shrinkage stress is the main reason of early micro-cracks of outside-walls based on construction experience. Meanwhile, storing heavy objects and decentering supporting steel tube prematurely during curingare the another causes of cracks of overhang roof. Good effect was obtained by improvements of cracks control measurements, and the latter 3000 m outside waterproof walls have no cracks.

关 键 词：HCSA膨胀剂 补偿收缩混凝土 防水外墙 裂缝 

分 类 号：TU94[建筑科学—建筑技术科学]