摘要
预应力孔道灌浆质量直接影响桥梁使用寿命。对冲击回波法检测预应力孔道灌浆质量基本原理进行分析,并制作4个构件,以此进行29组对比测试试验,分析总结检测经验,研究结果表明:冲击回波法能有效评价预应力孔道灌浆质量。
The quality of pre-stressed duct grouting directly affects the service life of Bridges. The impact-echo method detecting principle of pre-stressed duct grouting quality has been analyzed,and four components are constructed. Accordingly,the comparison test is conducted in29 groups,then,analyze and summarize test experience,there search results show that the impact-echo method can effectively evaluate the quality of pre-stressed duct grouting.
作者
张春红
Zhang Chunhong(Equipment and Technology Center of National Railway Administration, Beijing, 10003)
出处
《江西建材》
2018年第6期35-36,38,共3页
Jiangxi Building Materials
关键词
冲击回波法
预应力孔道
灌浆质量
模型试验
impact - echo method
pre - stressed duct
grouting quality
model test
