延迟膨胀持续补偿收缩防水混凝土在水池中的应用
Application of Delayed Expansion and Continuous Compensation Shrinkage Wa-terproof Concrete in the Pool
李洪煊 1王植林 1李骄阳 1鲁溢1
作者信息
- 1. 中国市政工程中南设计研究总院有限公司南京分院 210012
- 折叠
摘要
为了进一步控制水池防水混凝土的裂缝,阐述钙类膨胀剂的缺点和氧化镁膨胀剂的优点,结合水池防水混凝土的少缝无缝设计理念,提出了水池延迟膨胀持续补偿收缩防水混凝土的概念,论述了延迟膨胀持续补偿收缩防水混凝土的设计及施工要点,并将其应用于某30万t/d净水厂中.应用表明:氧化镁膨胀剂具有延迟膨胀持续补偿收缩的优点,能较好地弥补传统钙类膨胀剂的缺点,其可实现给水排水工程中的水池、泵房类构筑物的无缝少缝设计.可为同类水池、泵房类构筑物的设计提供参考.
Abstract
In order to further control the cracks in the waterproof concrete of the water tank,the shortcom-ings of calcium-based expansive agents and the advantages of magnesium-based expansive agents were expoun-ded.Combined with the design concept of waterproof concrete for water tanks with few or no seam,the con-cept of delayed expansion and continuous compensation shrinkage waterproof concrete for pools was proposed.The design and construction key points of delayed expansion and continuous compensation shrinkage water-proof concrete were discussed,which were applied to a 300,000-ton water treatment plant.Practical applica-tion show that magnesium-based expanding agents have the advantages of delayed expansion and continuous compensation shrinkage,which can better compensate for the shortcomings of traditional calcium-based expan-sive agents.It can achieve seamless or few-seam design for pools,pump rooms and other structures in water supply and drainage projects.The concept and application can provide reference for the design of similar pools and pump rooms.
关键词
补偿收缩混凝土/氧化镁膨胀剂/水池/混凝土膨胀剂Key words
Shrinkage-compensating concrete/Magnesium oxide expansive agents/Water tank/Expansive agents for concrete引用本文复制引用
出版年
2024
NETL
NSTL
万方数据