Assessing the Effects of Freeze-Thaw Cycles and Traffic Load on Pavement Resilience

Freeze-Thaw Cycles Flexible Pavement Traffic Speed Temperature Fluctuations Pavement Durability.

Authors

  • Omar Ben Charhi
    omar_bencharhi@um5.ac.ma
    Civil Engineering and Environment Laboratory (LGCE), Mohammadia Engineering School, Mohammed V University in Rabat, Rabat,, Morocco
  • Khadija Baba Civil Engineering and Environment Laboratory (LGCE), Mohammadia Engineering School, Mohammed V University in Rabat, Rabat,, Morocco
  • Latifa Ouadif Laboratory of Applied Geophysics, Geotechnics, Engineering Geology, and Environmental (L3GIE), Mohammadia Engineering School, Mohammed V University in Rabat,, Morocco

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This study examines the impact of freeze-thaw cycles on the performance of flexible pavements, focusing on a specific road in Morocco. The primary objectives are assessing pavement resilience under varying climatic conditions and investigating the combined effects of freeze-thaw cycles, traffic speed (ranging from V1 to V4), and temperature fluctuations (from T1 min to T2 max) on pavement durability and structural integrity. The methodology involves comprehensive data collection on traffic loads, local climate conditions, and soil characteristics. These data inform the pavement design process, helping determine the optimal thickness and selection of materials to withstand environmental stresses. The study also examines the effects of freeze-thaw cycles, assessing frost-resistant materials and comparing frost indices to enhance durability. Advanced modeling techniques simulate pavement performance under real-world conditions, optimizing resilience. The methodology investigates the interaction between traffic speed and pavement behavior, focusing on strain (εz), displacement (Uz), and stress (σz). The findings reveal a significant correlation between freeze-thaw cycles and pavement deterioration, with strain and displacement increasing as traffic speed decreases while stress intensifies with higher traffic speeds. This research provides valuable insights into the effects of traffic speed on flexible pavements, contributing to more effective maintenance strategies and design solutions for durable, weather-resilient roadways.

 

Doi: 10.28991/CEJ-2025-011-04-024

Full Text: PDF