Abstract
This paper deals with the experimental investigation on the mechanical, thermal and moisture properties of Ground Granular Blast Furnace Slag (GGBS) based Geopolymer Pervious Concrete (GGPC) with different size of aggregates. The concentration of NaOH is maintained as 12 M throughout the study. Fine aggregate is completely eliminated in the mix proportion to maintain the pervious nature. Coarse aggregate size is varied in three sizes such as 6mm, 12mm, and 20mm to study the effect of aggregate on the properties of GGPC. The ratio between sodium silicate and sodium hydroxide is maintained as 2.5 throughout the study, and the liquid to solid ratio is maintained as 0.45. The results from the experiments revealed that the compressive strength is higher for the aggregate size 12 mm at the end of 28 days compared to other mixes. The Co-efficient of Permeability (k) is increased with respect to the increase in the aggregate size from 6 to 20 mm.
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