• Subhash V. Patankar
• Sanjay S. Jamkar
• Yuvaraj M. Ghugal

Government stops the construction activities in most of the states during summer season due to scaring of water. Large quantity of water is required for casting and curing of concrete. This problem can be solved by replacing cement totally from concrete by industrial waste like fly ash which is activated by alkaline solutions to produce geopolymer concrete. So, in the present investigation, suitability of geopolymer concrete instead of cement concrete is studded on the basis of mechanical strength for different test period. Geopolymer concrete is produced by using fly ash which is activated by solutions of 13 M concentrated sodium hydroxide and sodium silicate solution contains 16.45% Na2O, 34.35% SiO2 and 49.20% H2O. Concrete cubes of side 150mmwere cast at solutions-to-fly ash ratio of 0.40. All specimens were cured in oven at 400C, 600C in oven while some cubes were place in natural sunlight in summer season for test period of 3, 7 and 28 days. Strength results of cement concrete of M25 grade and geopolymer concrete of same grade were compared for specified period of curing. It is observed that the geopolymer concrete gives better result of compressive strength at all period even at natural sunlight curing as compared to cement concrete with water curing. Geopolymer concrete is the best alternative to cement concrete specifically in summer season which need only 45 to 55% water for casting and no water for curing.

Cement concrete, Geopolymer concrete, workability, curing types, curing period, Compressive strength

"GEOPOLYMER CONCRETE-A BEST SOLUTION TO CEMENT CONCRETE IN HOT CLIMATE", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.271-276, May - 2019, Available :http://www.jetir.org/papers/JETIRCQ06048.pdf

"GEOPOLYMER CONCRETE-A BEST SOLUTION TO CEMENT CONCRETE IN HOT CLIMATE", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp271-276, May - 2019, Available at : http://www.jetir.org/papers/JETIRCQ06048.pdf