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Author

Mohammad Abba Usman

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Open access Nov 2026

SELF-COMPACTING CONCRETE WITH FLY ASH AND CALCIUM CARBIDE WASTE: BINDER CHEMISTRY, WORKABILITY, AND STRENGTH

The incorporation of industrial by-products into cementitious materials can reduce Portland cement consumption and improve resource efficiency. This study investigated fly ash (FA) and calcium carbide waste (CCW) as partial replacements for Portland cement (PC) in self-compacting concrete (SCC). Eleven mixtures were pr...

Mohammad Abba Usman, Umar Danazumi Yusuf, Y. Bahago · 0 citations
Open access Oct 2026

COMPRESSIVE AND SPLITTING TENSILE PERFORMANCE OF RICE HUSK ASH CONCRETE UNDER HYDROCHLORIC ACID AND SODIUM SULFATE EXPOSURE

The use of agricultural residues as supplementary cementitious materials offers a potential route for reducing Portland cement consumption while valorising waste resources. This study experimentally investigates the influence of rice husk ash (RHA) as a partial replacement for cement on the compressive and splitting te...

Mohammad Abba Usman, Hassan Ahmed, Jibrin Abdullahi Mairiga · 0 citations

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