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Details of mix proportions & HRWR dosage.
| material | mix proportion, % by wt |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| R0 or control | R2 | M1 | M2 | M3 | M4 | R1M2 | R1M3 | R2M2 | R2M3 | |
| OPC | 100 | 90 | 97.5 | 95 | 92.5 | 90 | 90 | 87.5 | 85 | 82.5 |
| RSA | - | 10 | - | - | - | - | 5 | 5 | 10 | 10 |
| MS | - | - | 2.5 | 5 | 7.5 | 10 | 5 | 7.5 | 5 | 7.5 |
| HRWRa | 0.4 | 1.5 | 0.9 | 1.05 | 1.2 | 1.3 | 1.7 | 2 | 2.4 | 2.5 |
HRWR dosage was in % by weight of binder material (OPC + RSA + MS).
