Scienceline Publications Journal of Civil Engineering and Urbanism 2252-0430 6 4 2016 July Particle Packing Density Approach for Design of Concrete Mixes Using Marble Waste 78 83 http://www.ojceu.ir/main/attachments/article/54/J.%20Civil%20Eng.%20Urban.,%206%20(5)%2078-83,%202016.pdf EN Sudarshan D. Kore Research Scholar, Department of Civil Engineering, Malaviya National Institute of Technology, Jaipur, Rajasthan-302017, India Ashok Kumar Vyas Professor, Department of Civil Engineering, Malaviya National Institute of Technology, Jaipur, Rajasthan-302017, India The particle packing density approach was followed to design the concrete mix. In this study, 75% conventional coarse aggregate was replaced by aggregate produced from marble waste and fine aggregate were replaced by up to 25% at a 5% increment by fine aggregate produced from marble waste. The water-cement ratio was kept 0.45 for all the mixes. The test results revealed that, workability of concrete mix increases as the percentage of marble waste as fine aggregate increased. The compressive strength of concrete mix containing 20% replacement of fine aggregate by marble powder shows maximum strength than that of control concrete, which is 9% more as compared to that of control concrete. The optimum percentage of replacement of marble waste by fine aggregate was 20%. From the experimental investigation it was observed that, conventional coarse aggregate can be replaced by 75% and fine aggregate can be replaced by 20% aggregate produced from marble waste. The concrete mixes, prepared by using aggregates produced from marble waste showed the economy in concrete production with 11% savings in overall production cost of concrete. The utilization of marble waste as replacement for aggregate in concrete mixes resulted in conservation of natural resources. Packing density Marble Waste Cement-Concrete Economy