Development of infrastructure play vital role in the economic development of any country. Our country is unable to complete the targeted length of roads as the cost of construction is increasing at an alarming rate due to increasing cost of construction materials. Partial or full replacement of conventional materials by suitable waste materials results in reduced construction costs and also helps in safe disposal of waste. Researchers have performed studies on utilizing waste materials such as Crusher Dust. Zink slag, Copper slag, scraps tires, etc.In pavement construction. In this investigation fly ash was used, because it is available in large quantities in the country as a waste product The use of fly ash as a replacement of sand and cement is an economical solution for making green and denser concrete. The study of the mechanical properties of concrete with 30 percent replacement of sand with (bottom ash), partial replacement of cement by…… and use of superplasticizer is presented in this thesis. The effect of blending fly ash content (15% to 45%) and replacing equal amount of cement for paving concrete was studied. Various mixes were developed for paving concrete, which aimed to meet the required specification provided by the (MORTH) . To address the strength and toughness, both closed-loop compression and flexure tests were conducted. The results were compared with the control concrete specimens prepared using the current mix design procedures of the IS : 10262. Test results indicated that up to 25% cement could be replaced by blending coal fly ash, resulting in high strength. The strength of concrete with 25% fly ash was higher than both the control concrete and the concrete containing 15% fly ash. At 25% cement replacement, the strength of M40 grade concrete exceeded 52 MPa in the lab with higher slump. The strength of concrete increased due to better particle packing by the inclusion of fly ash as a partial replacement of sand and cement as compared to control concrete. Also since workability is increased. There is further scope of reduction of water, which will further reduce the required quantity of cement. The results also indicated 13% higher flexural strength by the inclusion of as a partial replacement of sand, as compared to control concrete. The proposed mix design can save up to 103kg. Of cement per cum when compared to the conventional mix design, and resulted in fly ash utilization, to the tune of 298Kg per cum of concrete.