• Mr. P. Praveen Kumar

In our experimental investigation, we delve into the innovative concept of engineering concrete to float on water, achieved by incorporating lightweight aggregates and an air-entraining agent, notably Aluminum powder. Our primary objective is to diminish the self-weight of concrete by harnessing the benefits of lightweight aggregates, effectively reducing its density to below 1000 kg/m³, thereby enabling it to float. We adopted a methodical trial-and-error approach to ascertain the optimal mix proportions, considering the initial uncertainty regarding the precise combination. Through meticulous experimentation, we successfully attained a concrete density spanning from 500 to 900 kg/m³. Although the quest for a definitive mix design for floating concrete persists, we consulted reputable journals to inform our mix ratios. Our composite blend encompasses a diverse array of materials, including fly ash, gypsum, lime powder, pumice stone, aluminum powder, polypropylene, GGBS, vermiculite, sand, and cement. Noteworthy is our effective formulation, which involves partially substituting cement with fly ash (48%), lime (17%), and gypsum (6%), alongside replacing 50% of the fine aggregate with polypropylene. Additionally, we introduced an air-entraining agent of aluminum powder, varying concentrations from 2% to 10%. Subsequently, comprehensive testing was conducted to assess both the floating capability and compressive strength of the concrete.

Floating concrete, Lightweight aggregates, Air-entraining agent, Mix design, and Experimental investigation.

"Unlocking Concrete's Floating Potential: Experimental Inquiry into Innovative Concepts", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.11, Issue 4, page no.h814-h818, April-2024, Available :http://www.jetir.org/papers/JETIR2404795.pdf

"Unlocking Concrete's Floating Potential: Experimental Inquiry into Innovative Concepts", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.11, Issue 4, page no. pph814-h818, April-2024, Available at : http://www.jetir.org/papers/JETIR2404795.pdf