Abstract
The deteriorating concrete infrastructure in the U.S., notably highways and bridges, urgently needs attention. The Department of Transportation and various assessments highlight a maintenance deficit exacerbating traffic congestion [1]. An investment of about $3.6 trillion [1,2] is required to rectify these issues and improve traffic flow, emphasizing the need for stronger, more durable composite materials for concrete [2].Recent advances in high-resolution optical imaging, especially X-ray Computed Tomography (CT), have become crucial in materials science [3]. CT imaging offers in-depth insights into the internal structure of concrete, essential for understanding crack development and propagation under environmental stresses like earthquakes [4]. This technology has transformed the assessment of concrete’s mechanical properties, such as stress behaviors and deformation [4,5]. Improved CT imaging significantly enhances computational modeling, facilitating precise integration of geometric models into advanced finite element analysis software, thus improving the durability and longevity of concrete infrastructures [6, 7].
This paper provides a comprehensive review of the applications, progress, and limitations of CT imaging in concrete material analysis [6–8]. It underscores the significance of these imaging techniques in enhancing the structural performance of concrete, contributing to the resilience and sustainability of critical infrastructure systems [7–9]. This review aims to foster a deeper understanding of material behaviors and drive innovations in concrete technology.
