衡水力能山东衡水力能波纹涵管生产加工制造商QSDB

technology for prestressed corruga衡水力能山东衡水力能波纹涵管 生产加工制造商QSDBted tube grouting defect detection is analyzed.
Investigation of defects and causes
If the corrugated tube is not compacted, the steel winch will be corroded, and the prestress will be lost in advance, which will shorten the bridge life. The formation defect of corrugated pipe is mainly that the cement slurry is not filled with the entire corrugated pipe, resulting in a large crescent-shaped gap at the top of the corrugated tube, and even a