Research Article
Effects of Shrinkage Reducing Agent and Expansive Additive on Mortar Properties
| | Chemical composition | C | FA | EX | SRA |
| | SiO2 (%) | 21.5 | 24 | — | | | Al2O3 (%) | 4.64 | 10 | — | — | | Fe2O3 (%) | 3.05 | 21.2 | 0.45 | — | | CaO (%) | 65 | 32.6 | 77.5 | — | | MgO (%) | 0.88 | 2.08 | 0.51 | — | | Na2O (%) | 0.09 | 0.1 | — | — | | K2O (%) | 0.59 | 3.57 | 5.3 | — | | SO3 (%) | 2.47 | 1.1 | 16.2 | — | | Specific gravity | 3.15 | 2.23 | 3.16 | 0.99 | | Specific surface Blaine (cm2/g) | 3,400 | 3,800 | 3,450 | — |
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