Steel fibers as only reinforcement for flat slab construction – Experimental investigation and design

Steel Fibre Reinforced Self-Compacting Concrete (SFRSC) performance in slab application: A review

“…Steel fibres in thicker slabs tend to be more scattered by means of its orientation as compared to thinner slab elements. This results in larger crack width with lower residual tensile strength as well as lower load bearing capacity with a more pronounce softening behaviour [16]. Therefore, it can be concluded that the geometry of the slab has to be taken into consideration for the design of slab structures reinforced with only steel fibres.…”

“…The main focus is the load bearing capacity and the punching shear resistance of the slab. Results showed that the steel fibres was effective as total replacement of conventional reinforcement in flat slab with the provision of additional reinforcements spanning from column to column to prevent cracks progression [15], [16].…”

“…Particularly, studies had been carried out considering high volumes of steel fibres as the only reinforcement in flat slabs that is supported by columns without any supporting beams [15], [16], [20]. The main focus is the load bearing capacity and the punching shear resistance of the slab.…”

“…Higher fibre content in the mix and higher grade of concrete showed positive results in resisting the brittle punching shear failure. The steel fibres functions effectively as shear reinforcements to resist the punching shear failure in the flat slab element [15], [16], [19].…”

Flexural behaviour and punching shear of selfcompacting concrete ribbed slab reinforced with steel fibres

“…Steel fibres has the ability to improve the properties of SCC elements including tensile strength, ductility, toughness, energy absorption capacity [8], [9], fracture toughness [1], [10], [11] as well as cracking resistance [12]. Owing to the positive effects of steel fibres in enhancing the concrete materials properties especially by its contribution against crack propagation and enhancement in ductility, current research is now moving towards investigating the function of the fibres as the reinforcing material to partially or totally replace conventional reinforcements in concrete structures [13]. The aim of this paper is to investigate the flexural and punching shear behaviour of SFRSCC ribbed slab.…”