Steel Fiber Reinforced Self Compacting Concrete Incorporating Silica Fume
- Author Elsaye Berhanu Basa
- DOI
- Country : Ethiopia
- Subject : Civil Engineering
Keywords : Silica fume, Cement, Self-compacting concrete, fibres, Admixtures
Abstract
The world of today demanding and challenging civil engineering structures. Its possibilities are extended. Steel fiber serves as a barrier to delay the progression of their cracks different characteristics and properties. In this investigation, therefore, an attempt was made to study the self-compacting concrete. Flexural behavior of steel fiber reinforced incorporating silica fume in the structural elements to have a coarse aggregate substitution by silica fume weight of 25 percent and 35 per cent. A total of eight mixers in which cement content, water content, super plastic dosage were all constant are investigated. The fresh properties of the concrete were assessed by slump flow time and diameter, J-Ring, V-funnel, and L-Box. The percentage of volume fraction (1.0, 1.5) of steel fibre was the variable in this study. Finally, 5 beams are casted study, one with conventional concrete, one with SCC (25% silica fume), the other with SCC (25% silica fume + 1% steel fiber, 25% silica fume + 1.5% steel fiber), one with SCC (35% silica fume), and the other with SCC (35% silica fume + 1% silica fume). Compressive strength, concrete flexural strength was determined for 7and 28day hardened concrete. This analysis is also performed to assess the change in compressive strength by adjusting the amount by adding silica fume.
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