Papyrus Press Advance Researches in Civil Engineering 2645-7229 6 3 2024 09 01 Delayed Elastic Response of Aggregates in Concrete 14 21 237029 10.30469/arce.2025.530081.1087 EN Sasan Motaghed Faculty of Engineering, Behbahan Khatam Alanbia University of Technology, Behbahan, Iran Loftollah Emadali Behbahan Khatam Alanbia University of Technology Journal Article 2025 06 12 Concrete’s long-term performance under sustained loads is critically influenced by time-dependent deformation, commonly known as creep. Traditional models primarily attribute creep to the viscoelastic behavior of cement paste, considering aggregates as purely elastic materials Which deforms instantly under external load and the deformation remains constant.However, recent research has revealed that the aggregates themselves exhibit a delayed elastic response. This paper provides a comprehensive review of the mechanisms, contributingfactors, and engineering implications of the delayed elastic behavior of aggregates in concrete. This work underscores the need to consider the delayed elastic response of aggregates in multi-scale modeling, structural design, and the development of new concrete materials for improved long-term performance. https://www.arce.ir/article_237029_67162b072087601a7d151731cd1680cd.pdf