clear picture that quarry dust can be utilized in concrete mixtures as a good substitute for natural river sand giving higher strength at 50% replacement. Index Terms- Concrete, quarry dust, river sand, compressive strength. I. INTRODUCTION oncrete is the most widely used composite material today.
conventional concrete and replacement concrete (quarry dust + red soil) was prepared by replacement of fine aggregate with for 20%, 30%, 40% and 50%. The samples were categorized by age of the concrete at the day of testing, quarry dust and red soil content. For each mix, 3 cubes were tested for compressive