市政给排水管道渗漏粘接修复材料制备与应用性能研究

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中图分类号：TU992.4;TQ172.72 文献标志码：A文章编号：1001-5922（2026）1-0017-04

Abstract：Aiming at the leakage diseases of reinforced concrete pipelines for municipal water supply and drainage， a repair material with rapid hardening，high strength，excelent bonding performanceand gooddurability was developed.In this study，magnesium phosphate cement （MPC）was used as the base material，and raw materials such as dead-burned magnesium oxide and composite phosphate wereoptimized.The optimal mix ratio was determined by systematicall adjusting keypreparation parameters including aggregate-binder ratio，magnesium-phosphorus ratio， borax contentand water-binder ratio.Results：The prepared MPC-based repair material exhibited thecharacteristics of high earlystrength and short curing time，and its flexural strength，compressive strengthand flexural bonding strength were significantly superior to those ofconventional cement-based materials.This research successfully prepared a high-performance MPC -based adhesive repair material with excelent comprehensive properties，which can met the engineering requirementsof rapid，eficientanddurablerepairof municipal water suplyand drainage pipelines，and has broad prospects for popularization and application.

Key words ：municipal water supply and drainage pipelines;adhesive; material preparation ;repair;leakage

市政给排水管道担负着排水防涝、输水等重要功能，其安全、稳定运行与社会安全、环保息息相关。（剩余4155字）