Characterizations and Quantitative Estimation of Alkali-Activated Binder Paste from Microstructures

International Journal of Concrete Structures and Materials

Table 3 Final concrete mix proportions for alkali activated fly ash and/or slag (Ms modulus = 1.4).

Precursor	Mixture name	Fly ash (kg/m³)	Slag (kg/m³)
100 % Fly ash	FA 100	400	0
85 % Fly ash + 15 % slag	FA 85 SG 15	340	60
70 % Fly ash + 30 % slag	FA 70 SG 30	280	120
50 % Fly ash + 50 % slag	FA 50 SG 50	200	200
30 % Fly ash + 70 % slag	FA 30 SG 70	120	280
15 % Fly ash + 85 % slag	FA 15 SG 85	60	340
100 % slag	SG 100	0	400
Pre blend 100 % fly ash and solid NaOH for 15 days	FA 100 p15	400	0
Pre blend 100 % fly ash and solid NaOH for 30 days	FA 100 p30	400	0
Pre blend 100 % fly ash and solid NaOH for 60 days	FA 100 p60	400	0

Note The quantity of coarse aggregate was kept constant at 1,209 kg/m³ and that of fine aggregate at 651 kg/m³ for all mixes. Quantity of Sodium silicate (liquid) was 129.43 kg/m³ and that of sodium hydroxide (solid) was 10.57 kg/m³ for all mixes. The quantity of HRWRA used was in the range of 5,060–6,745 mL/m³.