Title : Applications of fibre-reinforced concrete in building and infrastructure projects in Singapore
Abstract:
Concrete is a brittle material that exhibits high compressive strength but relatively low tensile strength and limited tensile strain capacity. This inherent weakness in tension is typically addressed by incorporating steel reinforcing bars in the tensile zones of concrete structures to carry tensile stresses. Steel reinforcement is also essential for controlling crack widths to satisfy serviceability requirements. Fiber-reinforced concrete (FRC) is a type of concrete that incorporates discrete fibers to enhance its mechanical and durability performance. Common fiber types used in FRC include steel, synthetic, glass, and natural fibers. When properly designed, an FRC mix can significantly reduce crack widths and lengths under service loads, modify crack morphology, and improve ductility and durability.
The use of FRC has increased in recent years due to growing acceptance among designers, consultants, and project owners. This trend has been supported by improved design guidance through standards, the availability of robust construction equipment, and advancements in construction methodologies. Furthermore, developments in materials technology and innovative production techniques at precast and ready-mixed concrete plants have enabled higher quality control, broader application ranges, and enhanced post-cracking behaviour and durability. These advancements have collectively driven the wider adoption of FRC.
This presentation highlights case studies on the use of fibre-reinforced concrete (FRC) in Singapore’s building and infrastructure projects, including applications of steel, polypropylene (micro and macro), and alkali-resistant glass fibres across tunnelling, rail, and industrial building works.
