UHPC湿接缝浇筑的质量控制技术研究  

Study on quality control of UHPC placement for wet joint connection

作　　者：苏宇[1] Su Yu(Shanghai Water Construction Project Safety and Quality Supervision Center Station,Shanghai 200237,China)

机构地区：[1]上海市水务建设工程安全质量监督中心站,上海200237

出　　处：《山西建筑》2024年第6期111-114,共4页Shanxi Architecture

基　　金：学科技术课题计划资助项目(编号:上海市科委-22XD1433200)。

摘　　要：污水处理厂生物反应池预制拼装施工复杂,超高性能混凝土(UHPC)湿接缝连接部位施工不当可能产生裂缝。结合工程实例,针对现场施工空间受限、湿接缝浇筑长度超过25 m等难点,采用UHPC搅拌泵送智能化一体机、分段连续浇筑、分阶段多重养护等措施,确保了UHPC湿接缝浇筑施工的顺利进行,有效解决了超长湿接缝开裂风险,提升了湿接缝浇筑质量。The prefabrication and assembly of biological reaction tank in sewage treatment plant is complex,and cracks may occur due to improper construction of ultra-high performance concrete(UHPC)wet joint connection.Combined with the engineering examples,aiming at the difficulties such as limited construction space on site and pouring length of wet joint exceeding 25 m,the intelligent all-in-one machine of UHPC mixing-pump equipment,sectional continuous pouring and multi-curing are adopted to ensure the smooth construction of UHPC wet joint pouring,effectively solve the risk of super-long wet joint cracking and improve the pouring quality of wet joint.

关 键 词：超高性能混凝土 湿接缝 分段连续浇筑 开裂 质量 

分 类 号：TU528.31[建筑科学—建筑技术科学]