五河口斜拉桥索塔高性能混凝土试验研究  

Experiment Study of Mixing Proportion of High Performance Concreate for the Pylon in the Wuhekou Cable-stayed Bridge

作　　者：姜竹生[1] 刘世同[1] 陆采荣[2] 单国良[2] 

机构地区：[1]江苏省高速公路建设指挥部,江苏南京210004 [2]南京水利科学研究院,江苏南京210029

出　　处：《现代交通技术》2006年第4期22-25,共4页Modern Transportation Technology

摘　　要：结合五河口斜拉桥索塔工程研究了两种粉煤灰和粗骨料对高性能混凝土的力学性能影响,通过对粗骨料品种、粉煤灰品种及其掺量进行优化,得到了满足工作性和强度要求的索塔C50高性能混凝土配合比,并对其物理力学性能、耐久性能进行了检验。Combined with the Wuhekou cable-stayed bridge engineering,two kinds of fly ashes and coarse aggregates were tested to analyze the affections between aggregates and mechanical performances of the HPC.Through optimized different mixing ratio of fly ashes with aggregates,in both items and amounts, C50 HPC mixing proportions satisfing workability and strength of the pylon were achieved.Meanwhile examinations of the mechanic performances and durability were carred out.

关 键 词：高性能混凝土 粉煤灰 优化 力学性能 耐久性 应用 

分 类 号：U444.18[建筑科学—桥梁与隧道工程]