动水环境中水下不分散修补料的性能研究及示范应用  

Research and demonstrate application of anti-washout underwater repair material in dynamic water environment

作　　者：王冬[1,2,3,4] 陈健 封嘉蕊[2,3,4] 石明建 WANG Dong;CHEN Jian;FENG Jiarui;SHI Mingjian(Nanjing Hydraulic Research Institute,Nanjing 210024,China;Nanjing R&D Hi-Tech Co.Ltd.,Nanjing 211161,China;Research Center on New Materials in Hydraulic Structures,Ministry of Water Resources,Jiangshu 210024,China;Anhui R&H New Materials Co.Ltd.,Maanshan 238281,China)

机构地区：[1]南京水利科学研究院,江苏南京210024 [2]南京瑞迪高新技术有限公司,江苏南京211161 [3]水利部水工新材料工程技术中心,江苏南京210024 [4]安徽瑞和新材料有限公司,安徽马鞍山238281

出　　处：《新型建筑材料》2023年第10期7-10,21,共5页New Building Materials

基　　金：国家重点研发计划重点专项项目(SQ2020YFF0426367)。

摘　　要：针对实际水下施工面临的动水环境,通过自制仿真水环境模拟装置研究了不同水流速度(0.2、0.5、1.0 m/s)对水下不分散修补料(JK-PR400M)性能的影响,采用空海一体智能化诊测技术评估了JK-PR400M的水下修复效果。结果表明:JK-PR400M在水流速度小于1.0 m/s环境中具有优异的抗分散性和界面粘结性,但会造成浇注偏移和表面冲刷流失现象;在水深6 m、水流速度0.5m/s环境下实现了混凝土面缺陷的快速修复作业,缺陷修复区剖面高程与设计高程偏差≤30 mm,修复效果良好,经济效益显著。In view of the dynamic water environment faced by the actual underwater construction,the non-dispersion of different water velocities(0.2,0.5,1.0 m/s)was studied by self-made simulated water environment simulation device influence of the performance of the repair material(JK-PR400M),the underwater repair effect of JK-PR400M was evaluated by using air-sea intelligent diagnostic technology.The results show that JK-PR400M is in water excellent dispersion resistance and interface adhesion in environments below 1.0 m/s.However,the flow rate will cause casting deviation and surface erosion.The rapid repair of concrete surface defects was achieved in an environment with a water depth of 6 m and a water velocities of 0.5 m/s.The deviation between the profile elevation of the defect repair area and the design elevation is 30 mm.The repair effect is good and the economic benefit is remarkable.

关 键 词：水下不分散修补料 动水环境 水下混凝土缺陷 

分 类 号：TU528.36[建筑科学—建筑技术科学]