Research Article
Effect of Elevated Temperatures on Mortar with Naturally Occurring Volcanic Ash and Its Blend with Electric Arc Furnace Slag
Table 5
Compressive strength and strength activity index values with respect to aging.
| | Mix ID | Compressive strength (MPa) | Strength activity index (%) | | 7 days | 28 days | 91 days | 7 days | 28 days | 91 days |
| | C | 40.9 | 53.6 | 61.3 | — | — | — | | FA20 | 32.3 | 41.5 | 57.3 | 79.0 | 77.4 | 93.5 | | VA20 | 31.7 | 46.4 | 57.1 | 77.5 | 86.6 | 93.1 | | F20S10 | 38.7 | 50.3 | 69.8 | 94.6 | 93.8 | 113.9 | | V20S10 | 38.1 | 52.7 | 70.0 | 93.2 | 98.3 | 114.2 |
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