Effect of recycled materials and hybrid fibers on the properties of self-compacting concrete

Self-compacting concrete (SCC) has many properties comparing to conventional and represents a good choice towards sustainability. The use of different recycled materials contributes seize the negative impact huge amount waste on ecosystem. In this study, locally available have been used as partially cement replacements. Such including ceramic powder (CWP) glass (GP) in addition fly ash with total replacement 30%(12%CWP+8%GP+12%Fly ash) found increase compressive strength by about 7% compared control SCC. Normal aggregate was replaced which are Recycled Concrete (RC), Crushed red brick (REB) (CER.) percentages replacements are: 25%, 50%, 75% 100%, for each type aggregate. results show that aggregates decreases SSC effect workability also result reduction oven dry density. combination shows strength. fibers better performance mix without fiber but reduce However, content 1.0% best mechanical properties, whereas, up 1.5% affects negatively properties. hybrid increases concrete.