Segregation of Asphalt Concrete Mixtures – State of the Art

Segregation of asphalt concrete mixtures is one important aspect affecting durability and performance of pavement structures. Aggregate segregation, temperature segregation, and mechanical spreading segregation are some of its different types. A review of segregation is carried out in the current study to have a better understanding of mechanism, types, measurements, likely causes (such as rutting, fatigue, cracking, raveling, and tire-pavement interaction noise potentials), and solutions to segregation problem. Performance and durability of asphalt pavements can be greatly improved by addressing these issues through proper compaction methods, quality control procedures, and optimal mixing processes. Asphalt concrete mixtures segregation is a complex issue that calls for a multidisciplinary strategy to successfully handle. Development of assessment techniques, construction practice optimization, material innovation, and use of technology for real-time monitoring should be the main areas of future study. Measurement of segregation in asphalt concrete mixtures, requires a multipronged strategy that integrates conventional approaches with cutting-edge imaging and mechanical methodologies. By integrating these techniques, a thorough assessment of segregation is possible, considering variables such aggregate gradation, temperature fluctuations, and mechanical characteristics, making it easier to spot possible problems before they cause serious pavement failures. Performance and lifespan of pavement structures can be greatly enhanced by asphalt concrete mixtures industry by solving these issues, which will ultimately result in safer and more resilient roads. In order to overcome segregation and guarantee durability and sustainability of asphalt concrete in road construction, future research should keep investigating novel approaches and technological advancements.