Abstract
Geopolymer concrete (GPC) is a type of concrete which is produced by using industrial by-products such as Ground Granulated Blast Furnace Slag (GGBS), Fly ash, Metakaolin and silica fumes etc. as binding materials which have cementitious properties. In this study Reinforced Geopolymer Concrete Columns (RGPC) are produced by using GGBS as binding material. GGBS is converted into binding material by using alkali activators such as Sodium Hydroxide (NaOH) and Sodium Silicate (Na2SiO3). RGPC columns of size 1000 mm × 150 mm × 150 mm were tested by altering the molarities of NaOH i.e. 8 M, 10 M, 12 M, 14 M and 16 M, size and Reinforcement ratio remains constant and these columns were tested for load carrying capacities, stress strain behaviour of GPC and load–deflection behaviours. The results showed that load carrying capacity of columns increases by increasing the molarity of NaOH and the deflection of the column is decreased by increasing molarity. The study revealed that GPC can be used in structural members like columns which have higher load carrying capacities.
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