Studies on manufactured sand effect on mechanical properties of geopolymer concrete as replacement of river sand in fine aggregate

Concrete is the most adaptable, long-lasting, and dependable construction material on planet. There are numerous environmental concerns associated with production of OPC, natural sand becoming more expensive scarce as a result unlawful river dredging. The greatest replacement for traditional concrete geopolymer low calcium fly ash. purpose this paper to investigate mechanical properties grades G30 G50, which equivalent M30 M50, when substituted in various quantities manufactured sand, such 0%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 100%. When compared controlled concrete, improves compressive, tensile, flexural strengths.