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Chemical compositions of the binders employed.
| Materials | Chemical Compositions (%) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| CaO | SiO2 | Al2O3 | Fe2O3 | MgO | K2O | Na2O | TiO2 | SO3 | LOI | |
| OPC (1) | 60.2 | 21.6 | 5.15 | 3.30 | 2.30 | 0.99 | 0.53 | - | 1.50 | 2.41 |
| GGBS (2) | 44.9 | 35.4 | 13.0 | 0.47 | 5.01 | 0.37 | - | - | 1.31 | 0.69 |
| FA (3) | 4.00 | 57.9 | 20.5 | 6.80 | 1.38 | 1.18 | 0.89 | 0.13 | - | 4.60 |
| CSA (4) | 45.51 | 4.91 | 22.36 | 1.74 | 1.57 | 0.17 | 0.43 | - | 22.63 | 1.90 |
(1) OPC: ordinary Portland cement; (2) GGBS: ground granulated blast-furnace slag; (3) FA: fly ash; (4) CSA: calcium sulphoaluminate.
