Book

Fatigue cracking is one of the most common and critical forms of distress affecting asphalt pavements, progressively reducing structural integrity, pavement service life, and riding quality. A thorough understanding of the mechanisms governing crack initiation and propagation is therefore essential for preventing premature pavement failure and for evaluating the effectiveness of new materials and technologies. This book provides a comprehensive review of fatigue cracking in asphalt mixtures, with particular emphasis on crack initiation and propagation mechanisms, the factors that influence and accelerate fatigue damage, and the experimental methods used to evaluate fatigue performance. It examines both top-down and bottom-up fatigue cracking and discusses their implications for pavement deterioration and long-term performance. The book also reviews the application of asphalt modifiers, fibers, and geosynthetics as strategies for improving mixture performance, reducing fatigue crack development, and extending pavement service life. Laboratory-scale and large-scale field evaluation approaches are discussed, together with recent advances in experimental techniques, numerical modeling, and damage analysis. While fatigue cracking cannot be completely eliminated under repeated traffic loading and harsh environmental conditions, appropriate mixture design, reinforcement, and mitigation strategies can significantly delay its initiation and propagation. This book provides a valuable reference for researchers, civil and pavement engineers, graduate students, and professionals involved in asphalt materials, pavement design, evaluation, maintenance, and rehabilitation.