Micro Shirasu-balloons / Name of sample: B-3-2
 Fig. SEM photograph. |  Fig. Particle size distribution. |
Colors and whiteness.
| L | a | b | Whiteness (Lab) | Whiteness (Hunter) |
|---|---|---|---|---|
| 76.80 | 2.40 | 10.97 | 74.23 | 46.95 |
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) |
|---|---|---|---|---|---|
| 31.0 | 53.1 | 27.8 | 0.94 | 0.22 | 0.29 |
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%) |
|---|---|---|---|---|
| 0.94 | 1.37 | 47.7 | 1.19 | 65.0 |
|
| ||||||||||
