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Journal of Emerging Trends in Engineering and Applied Sciences (JETEAS)
ISSN:2141-7016
| Abstract: Concrete cubes and cylinders containing optimum cement replacement with rice husk ash (RHA) at low specific surface were cured in water and ambient air. The RHA was thermally produced using a charcoal fired incinerator. The characterizations of the RHA show that it was predominantly composed of amorphous silica with minor traces of cristobalite. The relative effects of air and water curing regimes on the physical properties of the concrete specimens containing the RHA and control were determined at different ages and water/cement (w/c) ratios. The results of compressive strength tests show that at 90 days, concrete cube specimens containing RHA recorded higher compressive strength losses compared to cube specimens without RHA. |
| Keywords: concrete, curing, RHA, compressive strength, hydration. |
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