确保北京东方广场混凝土工程百年不失效  

Guarantee the durability of Beijing Oriental Plaza Project's Concrete Engineering in A Century

作　　者：吴晓泉 

机构地区：[1]香港现成混凝土(中国集团)有限公司北京东方广场混凝土部

出　　处：《混凝土》2000年第1期8-13,7,共7页Concrete

摘　　要：本项目通过对所用材料的精选 ,采取早强、缓凝、抗渗、防冻技术 ,配制补偿收缩 ,低碱混凝土等措施 ,优化了混凝土的工作性 ,保证了体积的稳定性 ,使工程一次性 (不用大修 )使用寿命百年以上。并探索了大量应用中低强度等级高性能混凝土 (HPC)之路。? The project,through meticulous selection of the materials used adopts early hardening slow setting.anti penetrating,and anti freezing techniques and measures of using the limited expansion to compensate for limited contraction method to manufacture compensation contraction concrete(C.&.C.concrete)as well as low alkali concrete,therefore the workability of the concrete optimized,the volume stability ensured,and the project's one single time life spare more than one century(without overhaul),And in the project,the way to utilize on a large scale the medium and low grade high performance concrete (M.&.L.HPC)in real engineering explored. 〔

关 键 词：混凝土 补偿收缩混凝土 中低强度等级高性能混凝土 碱—集料反应 砂浆棒膨胀率 耐久性 

分 类 号：TU528.01[建筑科学—建筑技术科学] TU247