From: Strength and Some Durability Properties of Concrete Containing Rice Husk Ash Produced in a Charcoal Incinerator at Low Specific Surface
RHA replacement (%)
Slump (mm)
Saturated water absorption (%)
Sorptivity i m / t × 10 - 5
28 days
90 days
180 days
0
3
5.8
5.3
5.0
2.86
2.18
5
5.9
5.6
5.5
2.59
2.11
10
2
6.0
5.7
2.45
1.67