Micro Shirasu-balloons / Name of sample: B-5-1
 Fig. SEM photograph. |  Fig. Particle size distribution. |
Colors and whiteness.
| L | a | b | Whiteness (Lab) | Whiteness (Hunter) |
|---|---|---|---|---|
| 87.08 | 2.06 | 9.55 | 83.81 | 63.96 |
Mean diameter, Amount of particles floating after dispersed in water and Density.
| Mean diameter (µm) | Particles floating (wt%) | Particles floating after dispersed with ultra-sonic (wt%) | Particle density (g/cm3) | Bulk density (g/cm3) | Tapped bulk density (g/cm3) |
|---|---|---|---|---|---|
| 14.0 | 19.2 | 9.4 | 1.37 | 0.17 | 0.26 |
Strength (amount of nonfractured particles after compressing).
| Particle density before testing (g/cm3) | Particle density after uniaxial compressing at 5MPa (g/cm3) | Nonfractured particles after uniaxial compressing at 5MPa (wt%) | Particle density after hydrostatics compressing at 8MPa (g/cm3) | Nonfractured particles after hydrostatics compressing at 8MPa (wt%) |
|---|---|---|---|---|
| 1.37 | 1.66 | 58.1 | 1.50 | 79.2 |