Table 4 Strength activity index (SAI) of cement paste mixtures at different curing ages.
From: Optimizing calcium efficiency for sustainable cement with GGBFS-fly ash systems
Mixture | Composition | % Strength Activity Index (SAI) | ||
|---|---|---|---|---|
7 days | 28 days | 90 days | ||
A-1 | 100% OPC type I | 100 | 100 | 100 |
A-2 | 60% OPC type I + 40% GGBFS | 108 | 115 | 102 |
A-3 | 60% OPC type I + 40% GGBFS + 20% Fly ash | 71 | 104 | 103 |
B-1 | 100% OPC type I | 100 | 100 | 100 |
B-2 | 60% OPC type I + 40% GGBFS | 86 | 89 | 95 |
B-3 | 60% OPC type I + 40% GGBFS + 20% Fly ash | 70 | 58 | 103 |
C-1 | 25% OPC type III + 45% GGBFS + 30% Fly ash | 74 | 92 | 101 |
C-2 | 25% OPC type III + 45% GGBFS + 20%Fly ash + 5% G | 72 | 68 | 81 |
C-3 | 25% OPC type III + 45% GGBFS + 20% Fly ash + 10% G | 60 | 55 | 65 |
D-1 | 0% OPC type III + 84% GGBFS + 8% EXP + 8% CH + 9% LSP | 81 | 68 | 84 |
D-2 | 4% OPC type III + 84% GGBFS + 8% EXP + 4% CH + 9% LSP | 88 | 73 | 83 |
D-3 | 8% OPC type III + 84% GGBFS + 8% EXP + 0% CH + 9% LSP | 102 | 80 | 79 |
