Stabilization of Indian peat using alkali-activated ground granulated blast furnace slag

摘要: Peat is an exceptionally problematic soil for construction purposes and often stabilized by traditional stabilizers (like cement), which emits 0.95-ton carbon dioxide (CO2) per ton of cement during their production. Alkali-activated ground granulated blast furnace slag (GGBS) with its low (approximately 0.07-ton CO2) emissions higher strength gain provides a promising substitute to stabilizers. Therefore, this study presents the viability alkali-activated GGBS-stabilized Indian peat. The three types peats (sapric, fibric, hemic) were collected cover wide range variations fibre (6–73%) organic content (21–79%). sodium hydroxide (NaOH) molarities (M) 6, 9, 12, 15 used activate specimens, GGBS percentages 10, 20, 30% weight dry peat alkali/binder ratios 0.5, 0.7, 0.9. test results show that UCS peat-GGBS depends on molarity NaOH, A/B, electrical conductivity (EC), pH, curing period, matrix. optimum combination blend 20% GGBS, NaOH A/B ratio 0.7. Furthermore, it was found increases period decreases (OC). formation aluminium silicate, aluminosilicate, potassium aluminosilicate responsible confirmed XRD. FESEM micrographs reveal these products result in filling pore spaces form smooth dense soil-binder