某地下工程自密实自防水混凝土应用研究  

Application research on self-compacting and self-waterproofing concrete of certain underground engineering

作　　者：董军[1] 贡文献[2] 

机构地区：[1]南京军区空军后勤部 [2]空军第五空防工程处

出　　处：《山西建筑》2010年第32期160-161,共2页Shanxi Architecture

摘　　要：针对地下工程泵送混凝土施工时易产生裂缝、渗水现象,采用粉煤灰、膨胀剂、缓凝高效减水剂"三掺"技术,通过试验进行了研究。试验研究和工程实践表明复合外掺剂有效地提高了混凝土流动性,增加了混凝土的密实度,提高了混凝土的抗渗性能,满足地下工程结构自防水的设计要求。As far as easy appearing problems in underground engineering pumping concrete construction being concerned,such as cracks and water seepage,this paper adopts ＂three mixing＂ technology including fly ash,expansive agent and retarding superlasticizer,and carries on research by experiments.Test study and engineering practice shows that compound external mixing agent efficiently improves mobility of concrete,increases the compactness of concrete,improves the anti-permeability of concrete,and meets the design requirements of underground engineering structure self-waterproof.

关 键 词：地下工程 混凝土 自密实 自防水 

分 类 号：TU528.32[建筑科学—建筑技术科学]