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提高混凝土结构的耐久性,保证客运专线铁路在设计使用年限内的正常运营,减少因耐久性不足而导致的维修、加固、更换费用,需要在施工过程中对与混凝土耐久性相关的原材料品质、工艺措施、质量指标进行严格控制。结合编制《铁路混凝土工程施工质量验收补充标准》的体会,介绍客运专线铁路混凝土的主要耐久性指标及施工质量控制要点。
Improve the durability of concrete structures and ensure the normal operation of passenger dedicated railway within the service life of the design, reduce the maintenance, reinforcement and replacement costs due to lack of durability. The quality of raw materials related to concrete durability needs to be improved during the construction process, Process measures, quality indicators strictly controlled. Combined with the compilation of “Supplementary Standard for Acceptance of Construction Quality of Railway Concrete”, the paper introduces the main durability indexes and construction quality control points of railway concrete for passenger dedicated railway line.