Fibre-Reinforced Self-Compacting Concrete

Over the last few decades, the astonishing developments of super plasticizers technology allowed great achievements on the conception of concrete mixes exhibiting self-compacting ability. Since the eighties, some methodologies have been proposed to achieve self-compacting requirements in fresh concrete mixes, based on the evaluation of the flowing properties of these mixes. This study was composed of three parts. The first part was based on the design of SCC and FR-SCC with locally available materials of Fly ash in addition to chemical additives. The second part was based on studying the effects of using different percentages of steel fibers on SCC by testing the fresh properties of SCC and FR-SCC matrix such as slump flow, L-box, V-funnel and U-box test. The third part was dealing with the comparison of hardened properties of SCC and FR-SCC mixes such as compressive strength, splitting tensile strength, flexural strength. The results have shown that the addition of fibers improves the compressive strength, splitting tensile strength, and depending on the w/c ratio and admixture content better workability can be obtained for FR-SCC.