23. R&D data (Cont’…)
• Amorphous biomass silica
– Blended cement for waterproofing
– High performance concrete
Relation between Coefficient Of Water Permeability
and Age of Concrete for Moist-Cured
2.0E-11
4.0E-11
6.0E-11
8.0E-11
1.0E-10
1.2E-10
1.4E-10
0 7 14 21 28 35
Age (Days)
CoefficientofPermeability
(m/s)
OPC
RHA
FLy
TIA
Foamed concrete (1700kg/m3)
24. R&D data (Cont’…)
• SEM images of C-S-H gel in the paste with 10%
micronised biomass silica added
• Pore refinement for durability