Abstract
Portland cement (PC) is the most energy-intensive-based material, and also requires a huge amount of natural resources. At present, cement industries contribute 7% of the total CO2 emission into the atmosphere which results in increase in global warming effect. To control this negative effect, an alternative material is being developed. For this, geopolymer concrete (GPC) is such a material to replace the cement in construction industry. The present study focuses on the strength characteristics of GPC by using sodium silicate and sodium hydroxide combination used as alkali activator. The varied parameters are alkaline-to-binder ratio, binder content, fly ash and GGBS proportions and curing condition. To perform the experiments, a total of 60 specimens of size 100 mm × 100 mm × 100 mm were cast by adopting binder as 300 kg/m3. The results obtained from GPC under ambient curing with combination of fly ash and GGBS gains the required strength and also elminates the oven curing.
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