Table 12 Effects of RHA on slump, saturated water absorption and durability properties of concrete (free w/b ratio = 0.50).
RHA replacement (%) | Slump (mm) | Saturated water absorption (%) | Sorptivity | |||
|---|---|---|---|---|---|---|
28 days | 90 days | 180 days | 28 days | 90 days | ||
0 | 24 | 6.8 | 6.7 | 6.4 | 1.88 | 1.23 |
5 | 90 | 6.6 | 7.0 | 6.9 | 1.74 | 1.19 |
10 | 23 | 6.7 | 7.0 | 6.5 | 3.81 | 1.33 |
15 | 3 | 7.4 | 7.7 | 6.6 | 2.86 | 1.17 |
20 | 1 | 8.0 | 8.8 | 6.7 | 3.13 | 3.12 |