The effect of rice husk ash, silica fume, and quarry dust on glass fibre reinforced concrete's strength properties

Abstract

In this study, cement was replaced with silica fume, quarry dust, and rice husk ash, along with glass fibers as an addition. The experiment is looking into the concrete's mechanical properties, which will be studied at 7, 14, and 28 days. The ratio of water to binder was set to 0.4. With quarry dust at 20 percent, rice husk ash and silica fume were added in proportions of 10 percent, 20 percent, and 30 percent each. Glass fibers were added in percentages 0.25%, 0.5% and 0.75% of volume. Replacing cement with a mixture of 20% rice husk ash, 20% silica fume, and 20% quarry dust, while adding glass fiber at 0.75%, has been found to provide the maximum strength properties. The results of this experiment yielded relationships between compressive strength with flexural strength, and split tensile strength, which were of the mathematical model form. Proposed concrete production decreases cement production and mitigates environmental pollution through its use.