Table 13 Effects of RHA on slump, saturated water absorption and sorptivity properties of concrete (free w/b ratio = 0.55).
RHA replacement (%) | Slump (mm) | Saturated water absorption (%) | Sorptivity | |||
|---|---|---|---|---|---|---|
28 days | 90 days | 180 days | 28 days | 90 days | ||
0 | 35 | 6.3 | 6.6 | 6.3 | 2.59 | 2.49 |
5 | 100 | 6.5 | 7.4 | 6.8 | 1.75 | 1.38 |
10 | 55 | 7.9 | 7.8 | 7.5 | 3.81 | 2.31 |
15 | 35 | 8.0 | 8.0 | 6.2 | 3.67 | 2.03 |
20 | 27 | 8.1 | 9.7 | 6.8 | 3.61 | 3.54 |
25 | 2 | 8.5 | 9.7 | 7.5 | 3.54 | 3.00 |