Development of graded geopolymer concrete
- Vol.93 (07)
- Thane ACC LTD July, 2019
- 34-40p.
Fly ash based Geopolymer concrete (Fly ash based GPC) is emerging as a potential replacement to normal concrete due to its environmental friendly nature. Supplementing to this GPC is becoming a promising material because of non usage of Portland cement and usage of waste material like Fly ash, Ground Granulated Blast furnace Slag (GGBS) etc. Grade designation of concrete is very important to use in various structural applications. However no code is available to do the mix design of GPC based on grade of concrete, i.e. allotment of mix designations based on strength. Previous literature reveals that several parameters such as alkaline liquid ratio, aggregate proportion, percentage GGBS addition, molarity of NaOH and type of curing influence compressive strength of GPC. Hence in the present study parametric optimization method is chosen to identify parameters influence on compressive strength of GPC and based on optimum compressive strength, proportions for different grades of GPC are identified. Further Scanned Electron Microscopic (SEM) and Energy Dispersive X Ray (EDX) study is carried out on proposed grades of GPC.