The mechanism of seepage prevention of polymer grouting repair for longitudinal cracks in reconstructed and expanded pavement

Lin Guo, Baolin Wang, Bei Zhang, Zhaoxu Yang, Lin Zhou and Yanhui Zhong

PLOS ONE, 2025, vol. 20, issue 10, 1-24

Abstract: A key challenge in highway reconstruction and expansion projects is to reduce longitudinal cracking at the junction of old and new roadbeds, which is a critical issue in the maintenance of transportation infrastructure. Polymer grouting technology, a non-excavation method for hidden subgrade defects, leverages material self-expansion properties to fill voids, enhance load-bearing capacity, and bond structural layers while providing seepage control—enabling rapid repair of longitudinal pavement joints. This study investigates the seepage characteristics of polymer-grouted longitudinal joints in reconstructed pavements by simulating post-repair infiltration behavior under rainfall conditions. The results elucidate the anti-seepage efficacy of polymer grouting, offering theoretical and practical insights for efficient longitudinal joint treatment in highway expansion projects.

Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0332219

DOI: 10.1371/journal.pone.0332219

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