Micro Shirasu-balloons / Name of sample: B-5-3
 Fig. SEM photograph. |  Fig. Particle size distribution. |
Colors and whiteness.
| L | a | b | Whiteness (Lab) | Whiteness (Hunter) |
|---|---|---|---|---|
| 85.99 | 1.68 | 9.01 | 83.26 | 62.87 |
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) |
|---|---|---|---|---|---|
| 27.7 | 93.7 | 63.8 | 0.81 | 0.12 | 0.17 |
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%) |
|---|---|---|---|---|
| 0.81 | 1.67 | 21.4 | 1.22 | 48.7 |