Advances in Civil Engineering / 2014 / Article / Tab 3

Research Article

Flexural Toughness Properties of Reinforced Steel Fibre Incorporated Alkali Activated Slag Concrete

Table 3

Compressive strength of geopolymer concrete cured in hot air oven (100°C) and steam chamber (75°C).

Mix ID Mixture proportionsB/AG ratioF/C ratioAC/B ratio Water (lit/m3)NaOH (kg)Na2SiO3(kg)Compressive strength (MPa)
Hot air oven (100°C)Steam chamber (75°C)
1st day3rd day7th day14th day28th day1st day3rd day7th day14th day28th Day

GC11 : 0.63 : 1.630.440.380.3216103.68021.421.723.323.528.218.622.323.424.428.9
GC21 : 0.63 : 1.630.440.380.321669.12103.6819.822.723.827.729.224.424.624.427.429.3
GC31 : 0.9 : 1.840.360.490.318086.4025.529.531.534.535.332.732.933.334.937.9
GC41 : 0.9 : 1.840.360.490.318057.686.424.725.626.227.230.616.925.526.828.529.6
GC51 : 1.43 : 2.310.270.620.314469.12023.227.227.733.435.636.740.843.646.656.6
GC61 : 1.43 : 2.310.270.620.314446.0869.1221.924.626.729.833.623.325.627.428.131.8

Note: AC/B—activator to binder ratio; test results denote an average of 5 concrete specimens tested with standard deviation of 5.11 and the coefficient of variation around 0.153.