Table 11 Effects of RHA on slump, saturated water absorption and sorptivity properties of concrete (free w/b ratio = 0.45).
RHA replacement (%) | Slump (mm) | Saturated water absorption (%) | Sorptivity | |||
|---|---|---|---|---|---|---|
28 days | 90 days | 180 days | 28 days | 90 days | ||
0 | 3 | 5.8 | 5.7 | 5.6 | 2.45 | 2.18 |
5 | 30 | 6.0 | 6.4 | 6.4 | 2.10 | 2.05 |
10 | 3 | 6.7 | 6.7 | 6.2 | 2.00 | 1.91 |
15 | 0 | 7.0 | 6.9 | 6.2 | 1.50 | 0.90 |