Assessment of Autogenous Shrinkage Behavior in High-Performance Concrete Systems

Recent advancements in concrete technology have increasingly focused on developing high-performance concrete characterized by a low water-cement ratio. Nevertheless, high-performance concretes are not without their challenges, one of the most significant being early-age cracking induced by autogenous shrinkage. This study delineates the findings of an experimental investigation conducted to assess the autogenous shrinkage properties of high-strength concrete. Specifically, the influence of key parameters such as the water-to-binder ratio, cement content, fine-to-coarse aggregate ratio, and silica fume content were meticulously examined. The experimental outcomes reveal that the autogenous shrinkage strain of high-strength concrete escalates as the water-to-binder ratio diminishes. Furthermore, the investigation indicates that variations in cement content and the fine-to-coarse aggregate ratio exert only a marginal impact on the autogenous shrinkage behavior. These insights contribute to a deeper understanding of high-strength concrete's material properties and performance under varying compositional conditions.

کلیدواژه ها:

Autogenous Shrinkage ، High-Performance Concrete ، Silica Fume