appearance
|
spherical particle,
chocolate colour, porosity
|
grain diameter
|
0.5-32mm
|
visual
|
1.0-1.19g/ cm2
|
bulk density
|
2.26 g/ cm2
|
void fraction
|
55%
|
crack rate and wear
ability
|
1.62%
|
uneven coefficient
|
K80=1.84
|
even coefficient
|
K60=1.47
|
dissoluble rate of HCl
|
2.83%
|
dissoluble rate of
NaOH
|
1.50%
|
solute
|
No harmful elements to
human health
|
ability to absorb
|
The absorbablllty is
10% when ,is 101 scale
|