Dynamic performance of rubberised concrete and its structural applications ? An overview

Rubberised concrete is an eco-friendly material with reasonable mechanical strengths for potential civil engineering applications. Recent research has proved that rubberised concrete has superior properties at high strain rates such as dynamic compressive strength, dynamic splitting tensile strength, dynamic flexural strength, impact and collision resistance, repeated and reversed cyclic loads, and seismic loads. This paper presents in depth classification and summary of over ninety published articles on rubberised concrete dynamic properties and its structural applications where the dynamic properties are dominant and high strength of concrete is not necessary. The results show that structural applications such as reinforced concrete slabs, columns, beams, and walls with rubberised concrete exhibit better performance under high velocity impact and collision, bullet resistance, and blast loads compared with traditional concrete. In addition, rubberised concrete has high sensitivity to strain loading rates, high energy dissipation and ductile performance under dynamic loads compared to traditional concrete. A significant improvement in the behaviour of structural members under cyclic and seismic loads, including ductility, energy dissipation, stiffness degradation was observed. On the other hand, the reduction in load carrying capacity is significantly smaller than the reduction in the concrete strength of rubberised concrete compared with traditional concrete.

Automated summary

Rubberised concrete shows superior properties at high strain rates and is suitable for civil engineering applications. Compared to traditional concrete, rubberised concrete performs better in reinforced concrete structural applications, exhibiting advantages in high velocity impact, blast loads, and improved ductile performance under dynamic loads.