properties of porous solids

➤ calculate the true proportion
➤ calculate volume specific gravity
➤ calculate apparent solid specific gravity
➤ calculate apparent porosity
➤ calculate water absorption
➤ calculate true porosity

calculate true proportion

`G_t=[W_2-W_1]/[(W_3-W_1)-(W_4-W_2)]`
Gt = true proportion
W1 = sg bottle weight
W2 = sg bottle + weight of powder sample
W3 = sg bottle + weight of water
W4 = sg bottle + water + weight of powder sample

enter a value:

weight (w1):
weight (w2):
weight (w3):
weight (w4):

calculation result:

true specific gravity (gt):

calculate specific gravity by volume

`G_b=[W×D]/[S-I]`
Gb = volume specific gravity
w = weight of dry part in fluid
d = fluid density
s = weight of dry part immersed in liquid
i = weight of soaked dry block immersed in liquid

enter a value:

dry weight (w):
fluid density (d):
soaked parts weight (s):
weight of wetted parts immersed (i):

calculation result:

volume specific gravity (gb):

calculate apparent solid specific gravity

`G_a=[W×D]/[W-I]`
Ga = apparent solid specific gravity
w = weight of dry part in fluid
d = fluid density
i = weight of soaked dry block immersed in liquid

enter a value:

dry weight (w):
fluid density (d):
weight immersion after weight immersion (i):

calculation result:

apparent solid specific gravity (ga):

calculate apparent porosity

apparent porosity`=[sw]/[si]×100%`
s = weight of dry part immersed in liquid
w = weight of dry part immersed in liquid
i = weight of soaked dry block immersed in liquid

enter a value:

soaked parts weight (s):
dry weight (w):
weight after immersion immersion (i):

calculation result:

apparent porosity:

calculate water absorption

water absorption rate`=[sw]/w×100%`
s = weight of dry part immersed in liquid
w = weight of dry part in liquid

enter a value:

soaked parts weight (s):
dry weight (w):

calculation result:

water absorption:

calculate true porosity

true porosity`=(1-g_a/g_t)×100%`
Ga = apparent solid specific gravity
Gt = true proportion

enter a value:

apparent solid specific gravity (ga):
true specific gravity (gt):

calculation result:

true porosity:
how to calculate ratio specific gravity refers to the proportion of an object under certain conditions, that is, the ratio of the weight of an object per unit volume to the weight of a reference substance. specific gravity is a quantity closely related to density, but the two are not exactly the same. specific gravity is commonly used to determine the purity and quality of a specific substance and has applications in different experiments and industrial production.
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