Document Type
Extended Abstract
Abstract
Concrete has long been a cornerstone of civil infrastructure due to its strength, versatility, and cost-effectiveness. However, as global construction demands increase, so do concerns about the environmental impact of concrete production, particularly its significant carbon footprint. In recent years, numerous advanced materials and innovative methods have been explored to enhance concrete performance while minimizing its ecological impact. These advancements include the incorporation of alternative cementitious materials, self-healing agents, and 3D printing technologies. Among the emerging techniques, the use of magnetic fields to improve concrete properties has garnered considerable attention, as evidenced by the growing body of research over the past two decades. Magnetic technologies typically involve applying an external magnetic field to modify the behavior and properties of concrete, which can influence either the magnetic components within concrete itself or materials incorporated into the concrete mixture. Laboratory-scale research has demonstrated that such magnetic techniques can significantly enhance various aspects of concrete performance, such as its rheological properties, mechanical strength, and long-term durability. However, despite these promising findings, several challenges remain in translating these techniques from controlled laboratory settings to large-scale real-world applications. Key obstacles include scalability, cost-effectiveness, and achieving consistent results under varying environmental conditions. This presentation will focus on magnetic techniques for enhancement in properties of concrete, focusing on three key areas: (1) real-time rheology control of cementitious materials through magnetic field manipulation (set-on-demand), (2) magnetic-based crack filling for concrete (flow-on-demand), and (3) the orientation of magnetic fibers for structural performance enhancement. By examining these areas, this presentation aims to provide a comprehensive understanding of the potential and challenges of magnetic technologies, offering insights into their future integration into sustainable construction practices and paving the way for a more carbon-conscious concrete industry.
Keywords
Magnetic Field, Concrete, Set-on-Demand, Flow-on-Demand, Fiber-Reinforced Concrete.
DOI
10.5703/1288284318062
Magnetic Technologies for a Carbon Conscious Concrete
Concrete has long been a cornerstone of civil infrastructure due to its strength, versatility, and cost-effectiveness. However, as global construction demands increase, so do concerns about the environmental impact of concrete production, particularly its significant carbon footprint. In recent years, numerous advanced materials and innovative methods have been explored to enhance concrete performance while minimizing its ecological impact. These advancements include the incorporation of alternative cementitious materials, self-healing agents, and 3D printing technologies. Among the emerging techniques, the use of magnetic fields to improve concrete properties has garnered considerable attention, as evidenced by the growing body of research over the past two decades. Magnetic technologies typically involve applying an external magnetic field to modify the behavior and properties of concrete, which can influence either the magnetic components within concrete itself or materials incorporated into the concrete mixture. Laboratory-scale research has demonstrated that such magnetic techniques can significantly enhance various aspects of concrete performance, such as its rheological properties, mechanical strength, and long-term durability. However, despite these promising findings, several challenges remain in translating these techniques from controlled laboratory settings to large-scale real-world applications. Key obstacles include scalability, cost-effectiveness, and achieving consistent results under varying environmental conditions. This presentation will focus on magnetic techniques for enhancement in properties of concrete, focusing on three key areas: (1) real-time rheology control of cementitious materials through magnetic field manipulation (set-on-demand), (2) magnetic-based crack filling for concrete (flow-on-demand), and (3) the orientation of magnetic fibers for structural performance enhancement. By examining these areas, this presentation aims to provide a comprehensive understanding of the potential and challenges of magnetic technologies, offering insights into their future integration into sustainable construction practices and paving the way for a more carbon-conscious concrete industry.