Abstract: The mortar mixtures were prepared in various proportioned with cement to sand ratio of 1:3 and 1:4. The reinforced concretes were cast for the same flow level but different percentages of fly ash dosage. The prepared motor concrete subjected for structural study and mechanical property analysis. In FTIR spectra shows predominant peaks are observed the presence of admixture and fly ash in the concrete motor. The XRD spectra indicates the formation tetrahedrally arrangement of silicate and octahedrally arrangement of aluminate groups in fly ash mixed concrete. The surface morphology significantly improved upon adding of different admixture as examined in SEM image........
Key Word: Hybrid concrete, River sand, Flay ash, Mechanical study, Admixture
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