摘要
结合九江长江公路大桥主塔高性能清水混凝土的工程实践,从改善混凝土的可泵性、抗裂性、耐久性和外观质量的角度,提出了主塔清水混凝土原材料选择原则和关键控制指标,建议了主塔清水混凝土的设计思路、配合比性能要求与设计参数,介绍了优选的原材料及设计的3个高性能清水混凝土配合比的主要性能试验结果。
Based on engineering practice of high performance fair-faced concrete for main tower of Jiujinag Yangtze River Expressway Bridge,in the view of improving concrete pumpability,anti-cracking,durability and appearance quality,the choice principles and key control parameters of raw materials for main tower fair-faced concrete have been proposed,and the concrete design ideas,performance requirements and mixture proportion parameters have been suggested.Moreover,the primary test results of optimized raw materials and designed three high performance fair-faced concrete mixtures are presented.
出处
《建材世界》
2011年第3期32-36,共5页
The World of Building Materials
基金
江西省交通运输厅科技项目(2010C00009)
关键词
主塔
高性能清水混凝土
泵送
原材料
配合比设计
main tower
high performance fair-faced concrete
pumping
raw materials
mixture proportion design
