• Paresh Suryavanshi
• Prof. Amit Kumar Ahirwar
• Prof. Kapil Soni

The present study investigates the mechanical properties of medium strength SF geo-polymer concrete made according to this construction practice by partial replacement of slag cement. The effect of SF on the strength of compreessive, flexural and tensile splitting of rigid Geo-polymer concrete is investigated. Seven geo-polymer concrete mixes are prepared by replacing Portland slag cement (PSC) partially with SF from 0 to 30%. The Indian standard recommends reducing the target strength of conventional Geo-polymer concrete in terms of water-to-cement ratio (w / c). In the present study, to propose the relation of compreessive strength with water-cement ratio, the behavior of RCA Geo-polymer concrete prepared from two samples of parent geo-polymer concrete with different age groups is investigated. The effect of age and number of recycling on properties such as capillary water absorption, drying shrinkage stress, air content, flexural strength and tensile splitting strength of RCA Geo-polymer concrete are investigated. And the compreessive strength gradually decreases with the number of recycling.

Geo-polymer concrete, Recycled coarse aggregate, Ureolytic bacteriya, Fly ash, Cement, Variability, Fragility.

"“Analysis of Geopolymer concrete in Recycled Materials for Economical Behavior of the Structure”", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.8, Issue 6, page no.a817-a822, June-2021, Available :http://www.jetir.org/papers/JETIR2106113.pdf

"“Analysis of Geopolymer concrete in Recycled Materials for Economical Behavior of the Structure”", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.8, Issue 6, page no. ppa817-a822, June-2021, Available at : http://www.jetir.org/papers/JETIR2106113.pdf