06.2021.342.350

Utilizing Slurry Infiltrated Fibrous Concrete (Sifcon) In Rehabilitation and Strengthening Structures of Reinforced Concrete: Literature Review and Recommendation

Author(s):

Mustafa B Dawood, Hawra Mohamed Ali M. Taher

Affiliation(s):

Civil Engineering Department, College of Engineering, University of Babylon, Babylon, Iraq

Corresponding Author Email: hawra.m@uokerbala.edu.iq; eng.mustafa.balasum@uobabylon.edu.iq

This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Structures of reinforced concrete are subjected to performance improvement and modification within their service life. The key factors are deterioration due to corrosion in the steel, new design standards and change in their use, natural disasters like earthquakes. A plethora of research was done on enhancing these structures performance. Enhancing methods like fibre-reinforced polymer, steel bracing, external post-tensioning, steel plate bonding, adding new structural elements, etc were used and revealed various degree of successful implementation. “Slurry infiltrated fibrous concrete” (SIFCON) is a modern kind of fibre-reinforced concrete high-performance designed through infiltrating special-designed cement-based slurry with a fibre bed. the material pose high-quality mechanical components mixed with toughness values and large ductility. The experiments in SIFCON Laboratory showed SIFCON as a novel construction material with enhanced energy absorption capacity, impact resistance, large ductility, and high strength. All these characteristics enable SIFCON to rehabilitate and strengthen the structures of unreinforced concrete and reinforced concrete. Various techniques of strengthening are have been suggested to increase the shear and flexural ductility and strength of structures utilizing materials SIFCON. Strengthening techniques, limitations, disadvantages, and advantages are study reviewed in this study.