ZHANGTao,ZHENLiang,WANGJianfeng,et al.Properties of Polymer Concrete as a Repair Material for Segmental Lining[J].China Water & Wastewater,2026,42(12):9-15.
Properties of Polymer Concrete as a Repair Material for Segmental Lining
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第42卷
Number:
第12期
Page:
9-15
Column:
Date of publication:
2026-06-17
- Keywords:
- segmental lining repair; polymer concrete; buried reinforced concrete pipe; mechanical properties; finite element simulation
- Abstract:
- Segmental lining is a convenient trenchless pipe repair technique, however, it suffers from the drawback of low strength and stiffness of the segment material. To address this issue, a novel polymer concrete material suitable for pipe repair was developed. This material not only retains the advantages of polymer concrete， but also exhibits good compatibility with reinforced concrete pipes. High strength can be achieved by adjusting the resin content. The influence of this material on the structural performance of the repaired pipe was investigated through numerical simulations of the three-edge bearing test on pipes before and after repair. The results demonstrate that the conventional polymer concrete with 20% resin content achieves satisfactory repair performance, and the bearing capacity of the repaired structure can be significantly enhanced when the repair is applied at an early stage.
Last Update:
2026-06-17