Concrete Compressive Strength Using River Sand and Quarry Dust as Fine Aggregates

The compressive strength of concrete built with river sand and quarry dust as fine aggregate was examined in this study. Ordinary Portland cement (OPC) was blended with river sand and quarry dust at five levels, namely 10%, 20%, 30%, 40%, and 50%, by partially substituting OPC with river sand and quarry dust. River sand was combined with quarry dust in five different ratios for each replacement level: 100:0, 90:10, 80:20, 70:30, 60:40, 50:50, and 0:100. For each blend, ten cubes of (150 x 150 x 150) mm were created. As a control, ten cubes containing solely OPC were made, for a total of 60 cubes. The cementitious material to sand mix ratio was kept constant at 1:2:4 and the water to cement ratio was kept at 0.5. Three cubes for each mix and the control were crushed to obtain their compressive strengths at 28 days. The results showed that river sand and quarry dust with a compressive strength of 10 to 30% replacement is an excellent construction material for constructing concrete. As a result, quarry dust and river sand are suggested as construction materials for making concrete, and can be used to replace river sand up to 30% of the time to achieve the needed compressive strength of not less than the standard Keywords: River sand; Quarry dust; Ordinary Portland Cement; Compressive strength DOI: 10.7176/JEES/11-9-06 Publication date: September 30 th 2021