Research on the Influence of Steam Curing on Properties of C50 Shield Segment Concrete

作     者：LI J H 

作者机构：Wuhan Harbour Engineering Design & Research Co.Ltd.Wuhan 430071China Key Lab of Large-span Bridge Construction TechnologyMinistry of CommunicationsWuhan 430071China School of Materials Science and EngineeringWuhan University of TechnologyWuhan 430070China 

出 版 物：《武汉理工大学学报》 (Journal of Wuhan University of Technology)

年 卷 期：2010年第32卷第17期

页      面：137-140页

学科分类：08[工学] 081304[工学-建筑技术科学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0813[工学-建筑学] 

主　　题：shield segment concrete steam curing properties influence 

摘      要：The effects of steam curing on mechanical properties,drying shrinkage,cracking sensitivity,anti-permeability,and carbonation resistance of C50 shield segment concrete were investigated,which were compared with the standard curing conditions. The results indicated that steam curing could increase early strength of concrete and reduce its drying shrinkage. However,steam curing reduced later strength of concrete,increased its crack sensitivity and deteriorated its anti-permeability and carbonation resistance. Moreover,the incorporation of fly ash could improve the durability of steam-cured concrete.