简析铁路客运专线桥梁高性能混凝土耐久性影响因素

Influence Factors of Durability of High-performance Concrete Applied in Bridges of Passenger Line

近年高性能混凝土在铁路客运专线桥梁工程中大量应用,本文着重从外界环境、碱骨料反应、温度应力等方面分析影响客运专线桥梁高性能混凝土耐久性的主要因素,并提出提高和保证高性能混凝土耐久性的控制措施。

From the aspects of external environment,alkali-aggregate reaction and temperature stress,the main factors influencing the durability of high-performance concrete applied in bridges of passenger dedicated line are analyzed.The control measures for improving and ensuring high-performance concrete durability are presented.