Experimental study on mechanical and durability properties of recycled aggregate based geo-polymer concrete

To reduce the carbon foot print from the production of Portland cement, there is requirement of creating other bond produced materials to make concrete. In this connection several efforts are put forward to develop binders with pozzolanic materials without cement, for this addition of chemicals is unavoidable to cause reactive, this work involves the use of fly ash, Recycled aggregate, alkaline activated fluids. Alkaline to binder ratio is 0.55 with exchange of 100% cement with fly ash and determine the strengths for 24hrs oven curing at temperature 60 degrees C and 28 days atmospheric curing. In this work waste materials fly ash and GGBFS are taken in the proportion of 70:30. The proportion of Sodium Silicate and Sodium Hydroxide is taken as 2.5 and the alkaline liquid to binder ratio is taken as 0.5. The molarity of the alkaline solution is taken as 8 M and 10 M. In this work, the coarse aggregates have been replaced by recycled aggregates for different proportions i.e. 0%, 25%, 50% and 100% the mechanical properties such as compressive strength, Split Tensile and Flexural Strength are evaluated.Copyright (c) 2022 Elsevier Ltd. All rights reserved.Selection and peer-review under responsibility of the scientific committee of the International Conference on Smart and Sustainable Developments in Materials, Manufacturing and Energy Engineering