• Navjot kaur
• Sonia verma

Silica Fume (SF) is cementitious material which gives High Strength in concrete. It is used for production of high performance concrete. It also reduces the water demand in concrete because of its high surface area. FAL–G reaction creates a lesser amount of greenhouse gas and it does not depend upon external heat. It is eco friendly binding material as compares to ordinary Portland cement. A suitable concrete mix of M50 grade was made with different quantity of cement, Fly Ash, lime, Gypsum , fine aggregate, coarse aggregate, silica fume, and water and chemical admixture. In this design mix, we partially replace silica fume and FAL-G with cement with 0- 30% removal of cement. The micro silica with FAL-G concrete mix gives ultra high strength after 28 days testing. FAL-G has been used as cement replacement material for (0%, 10%, 20%, and 30%) cement replacement levels with different values of silica fume (0%, 10%, 20%, and 30%) by weight of cement. The test specimens were cast using cement, fine aggregate, coarse aggregate, fly ash, silica fume, super plasticizer, water, Lime and Gypsum. Admixture is used in concrete to minimize the water cement Ratio without affect the workability and strength of concrete .Three specimens were tested for 7, and 28 days with each proportion of silica fume and FAL-G replacement total 24 cubes and 24 cylinders were cast and these specimens were tested in compression testing machine.

Compressive Strength, split tensile strength, FAL-G, silica fume and high strength concrete

"PARTIAL REPLACEMENT OF CEMENT WITH FAL- G AND SILICA FUME", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.112-116, June 2019, Available :http://www.jetir.org/papers/JETIR1907N55.pdf

"PARTIAL REPLACEMENT OF CEMENT WITH FAL- G AND SILICA FUME", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp112-116, June 2019, Available at : http://www.jetir.org/papers/JETIR1907N55.pdf