• Lokesh Patil
• Chittaranjan B. Nayak
• Umesh. T. Jagadale

Utilization of industrial wastes or secondary materials has encouraged the cement and concrete industries for more beneficial product generation. Re-cycling of waste materials has great potential in the concrete industry. Over the recent decades, intensive research studies have been carried out to explore all possible re-use methods. Construction waste, blast furnace slag, steel slag, coal fly ash, bottom ash etc have been accepted as alternative methods of replacement of cement and aggregates. Here in this work the materials used are copper slag and fly ash as the replacement materials. Copper slag (CS) is an industrial by-product produced from the manufacturing of copper. It possesses mechanical and chemical characteristics that qualify it to be a partial replacement material of Portland cement as well as fine aggregates. Fly ash (FA) is finely divided residue, resulting from the combustion of ground or powdered coal. It’s available in large quantities as a waste product from thermal power plants and industrial plants. The properties of fly-ash contribute to strength gain and improved durability when used with Portland cement. In this work it was experimented that, what performance these two can provide when used collectively in concrete as a replacement material. Fly-ash is used as a cement replacement material whereas copper slag is used as a sand replacement material. The specimens were casted and tested for compressive test, split tensile test and durability by acid resistance. Replacement was made for 5%,10%,15%,20% for both FA and CS. And tests were conducted at 28 days. Tests show that best combination is achieved at 5%FA+20%CS. By the application of 5 % nano silica and 5 % micro silica material in the preparation concrete enhance the flexural strength.

Keywords: Copper slag; Fly ash; Nano material; Cement Concrete; Compressive Strength.

"Effect of copper slag and fly ash and Nano Material to strengthen the properties of concrete", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.9, Issue 6, page no.a831-a838, June-2022, Available :http://www.jetir.org/papers/JETIR2206095.pdf

"Effect of copper slag and fly ash and Nano Material to strengthen the properties of concrete", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.9, Issue 6, page no. ppa831-a838, June-2022, Available at : http://www.jetir.org/papers/JETIR2206095.pdf