09-10-2014, 10:21 AM
Abstracts: Self-compacting concrete (SCC) offers several economic and technical benefits; the use of steel fibres extends its possibilities. Steel fibres acts as a bridge to retard their cracks propagation, and improve several characteristics and properties of the concrete. Fibres are known to significantly affect the workability of concrete. Therefore, an investigation was performed to compare the properties of plain normal compacting concrete (NCC) and SCC with steel fibre. Construction of durable concrete structures requires skilled labour for placing and compacting concrete. Self-Compacting Concrete achieves this by its unique fresh state properties. In the plastic state, it flows under its own weight and homogeneity while completely filling any formwork and passing around congested reinforcement. In the hardened state, it equals or exceeds standard concrete with respect to strength and durability. This work is aimed to study the performance of steel fibre reinforced self-compacting concrete as plain self-compacting concrete is studied in depth but the fibre reinforced self-compacting concrete is not studied to that extent. The results indicated that high-volume of fly ash can be used to produce Steel fiber reinforced self-compacting Concrete, even though there is some increase in the concrete strength because of the use of steel fiber and high-volume of fly ash.