Karthik Chari
Independent Researcher
India
Abstract
Urban Heat Islands (UHIs) represent a critical environmental phenomenon where urban areas experience significantly higher temperatures than their rural surroundings due to anthropogenic activities and altered land surfaces. This elevated temperature influences the performance and durability of infrastructure materials, notably pavement materials. This manuscript explores the impact of UHIs on the durability of commonly used pavement materials such as asphalt concrete and Portland cement concrete. The study reviews existing literature on thermal stresses induced by UHIs, mechanisms of material degradation, and examines statistical data on temperature variations and pavement distress occurrences in urban settings. Using a mixed-method approach involving field data analysis and laboratory simulation, the study quantifies the influence of UHI-induced thermal loading on pavement degradation rates. Results indicate that pavements in UHI-affected zones experience accelerated aging, increased rutting, cracking, and surface deterioration. The paper concludes by emphasizing the need for adaptive pavement design strategies incorporating thermal resilience to mitigate UHI impacts.
Keywords
Urban Heat Island, Pavement Durability, Asphalt Concrete, Portland Cement Concrete, Thermal Stress, Material Degradation, Urban Infrastructure
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