Volume 11, Issue 2 (9-2024)
IJRARE 2024, 11(2): 39-47 |
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School of Railway Engineering, Iran University of Science & Technology
Abstract: (302 Views)
The freezing-thawing phenomenon is one of the most well-documented causes of aggregate degradation. This study investigates the impacts of freeze-thaw cycles on railway ballast aggregates through comprehensive laboratory tests. The aggregates were subjected to freeze-thaw cycles according to BS EN 1367-1 standards, and deterioration evaluation indexes were determined. The results indicate significant increases in the Los Angeles abrasion, Micro-Deval impact, and crushing indices under freeze-thaw conditions compared to normal temperature conditions. The obtained results indicate that the durability indices under freezing-thawing cycles, led to an average reduction of 20%. The findings highlight the critical need for improved ballast materials and maintenance strategies to enhance the durability and performance of railway infrastructure in cold regions.
Keywords: Freezing-thawing, climate change effect, ballast aggregates, laboratory tests, railway infrastructures.
Type of Study: Research |
Subject:
Railway track and structures
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