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A platform for research: civil engineering, architecture and urbanism
Development of high-performance self compacting concrete using eggshell powder and blast furnace slag as partial cement replacement
Graphical abstract Display Omitted
Highlights Eggshell powder and blast furnace slag was used as partial cement replacement in SSC. 10 wt% partial replacement was optimal for the flow-ability and workability. 20 wt% partial replacement was optimal for the compressive strength and flexural strength. GGBFS had better fresh, hard and microstructural properties than ESP.
Abstract This study aimed to examine the properties of self-compacting concrete (SCC) developed using eggshell powder (ESP) and granulated ground blast furnace slag (GGBFS) as partial cement replacement. The coarse aggregate impact value was 21.6% and the water absorption of the fine aggregates was 24 wt%. 10 wt% partial replacement was optimal for flow-ability and workability. SCC with 20 wt% partial replacements had the highest compressive strength at 41.34 kN/mm2 and 42.4 kN/mm2 for ESP and GGBFS respectively after 28 days of curing. SCC with 20 wt% partial replacements had the highest flexural strength at 3.2 kN/mm2 for both ESP and GGBFS after 28 days of curing. From the microstructural analysis, partial replacement with mineral admixtures improved the interfacial interactions between constituents of the concrete and GGBFS SCC gave a better interfacial interaction between the concrete constituents than ESP SCC. In summary, GGBFS had better fresh, hard and microstructural properties than ESP.
Development of high-performance self compacting concrete using eggshell powder and blast furnace slag as partial cement replacement
Graphical abstract Display Omitted
Highlights Eggshell powder and blast furnace slag was used as partial cement replacement in SSC. 10 wt% partial replacement was optimal for the flow-ability and workability. 20 wt% partial replacement was optimal for the compressive strength and flexural strength. GGBFS had better fresh, hard and microstructural properties than ESP.
Abstract This study aimed to examine the properties of self-compacting concrete (SCC) developed using eggshell powder (ESP) and granulated ground blast furnace slag (GGBFS) as partial cement replacement. The coarse aggregate impact value was 21.6% and the water absorption of the fine aggregates was 24 wt%. 10 wt% partial replacement was optimal for flow-ability and workability. SCC with 20 wt% partial replacements had the highest compressive strength at 41.34 kN/mm2 and 42.4 kN/mm2 for ESP and GGBFS respectively after 28 days of curing. SCC with 20 wt% partial replacements had the highest flexural strength at 3.2 kN/mm2 for both ESP and GGBFS after 28 days of curing. From the microstructural analysis, partial replacement with mineral admixtures improved the interfacial interactions between constituents of the concrete and GGBFS SCC gave a better interfacial interaction between the concrete constituents than ESP SCC. In summary, GGBFS had better fresh, hard and microstructural properties than ESP.
Development of high-performance self compacting concrete using eggshell powder and blast furnace slag as partial cement replacement
Ofuyatan, Olatokunbo M. (author) / Adeniyi, Adewale George (author) / Ijie, David (author) / Ighalo, Joshua O. (author) / Oluwafemi, John (author)
2020-04-29
Article (Journal)
Electronic Resource
English
Durability properties of self compacting concrete produced using blast furnace slag
| British Library Conference Proceedings | 2009
Design of self-compacting concrete with ground granulated blast furnace slag
| British Library Online Contents | 2012