Kosfeld Fenna Thesis - Flipbook - Page 123
Sample 1
h - 5.40cm
d - 6cm
Young modulus approx. 0.067 MPa
Test sample has an irregular shape and grain distribution
at time of testing it was also still moist in the core, which needs to be
considered in 昀椀nal interpretation.
The material’s stress-strain response is not showing a clear linear
elastic region or the measurements may have limitations due to the
composite nature and moisture content
Ingredients:
water, cornstarch, wood biochar grain
size 5mm ( rough ), urine
airdried but nt slightly moist from inside
Sample 2
h - 4cm
d - 2.1 cm
ingredients:
water, cornstarch, wood biochar grain size 1mm ( 昀椀ne) , urine
airdried
I conducted the test but was not able to calculate the Young modulus
and further measurements,
I compared the performance data of the chardboard with a reticulated, vitreous carbon foam (
CF) , and polyutherane filter foam (PFF).
The young modulus of CF is between 0,031- 0.062 GPa.
The Young modulus of biocharged sample is at around
0.0067 GPa, which makes it as more resistant and strong
than carbon foam.
( source of comparison - Judith helped me with the datasheet of comparable material)
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