摘要
江苏沿海涵闸混凝土受到碳化、氯盐侵蚀、冻融破坏等环境作用。部分近20年来建设的沿海涵闸混凝土预估寿命达不到50年。针对混凝土在耐久性设计、施工等方面存在的问题,从耐久性设计、原材料选择、配合比设计、施工和运行管理等方面提出提升沿海涵闸混凝土耐久性的途径和措施。
Jiangsu coastal culvert and sluice concrete is subjected to carbonation, chloride salt corrosion, freeze-thaw damage and other environmental impacts. Life-span of some coastal culvert and sluice built in recent 20 years in Jiangsu is much less than 50 years. This essay illustates existing problems on concrete durability design, raw materials choice, mixture ratio design and operational management, and introduces proper measures to improve coastal culvert and sluice concrete durability.
出处
《粉煤灰综合利用》
CAS
2015年第4期34-37,共4页
Fly Ash Comprehensive Utilization
基金
江苏省水利科技重点项目"低渗透高密实表层混凝土施工技术研究及应用"(2013018)
江苏省地方标准<水利工程混凝土耐久性技术规范>编制(2011053-5)
关键词
沿海涵闸
混凝土
耐久性
提升
措施
coastal culvert and sluice
concrete
durability
enhancing
measures
