混凝土旋流井冬期负温施工  

Winter Concreting under negative-temperature

作　　者：张彤[1] 周云麟 

机构地区：[1]鞍山钢铁学院,辽宁 鞍山 114044 [2]鞍钢集团技改部,辽宁 鞍山 114021

出　　处：《混凝土》2001年第4期52-54,共3页Concrete

摘　　要：纵观近年来混凝土冬期施工技术成就 ,阐述混凝土冻害机制 ,混凝土旋流井冬施原理、技术要点 ,达到防冻、防裂、密实抗渗、经济合理的综合效果。? Surveied of recently chievements for concrete constraction,techinques in winter,this paper illustrates the mechanism of concrete freeze injury,the constraction principle of concrete rotary fluid drilling in winter,the techincal points and soon,in order to get the synthetical resalt among preventing frostbite,preventing crack,concentrate resisting percolation and economy reasonable. 〔

关 键 词：混凝土 冬期施工 保湿防渗 水密性 温度应力 

分 类 号：TU755.8[建筑科学—建筑技术科学]