Recycled Old Corrugated Container Fibers for Wood-Fiber Cement Sheets

Table 2

Results of physical and mechanical tests of wood-fiber cement sheets.

Treatment	Properties
	MOR^1		MOE		WA	TS	LV	Density
	(Dry)	(Wet)	(Dry)	(Wet)
	(MPa)^2	(MPa)	(GPa)	(GPa)	(%)	(%)	(%)	g/m^3
OCC	10.95^a (1.75)	3.73^b (.09)	3.59^ab (.12)	2.01^a (.16)	31.8^c (1.91)	0.29^bc (.09)	0.0^b (.06)	1.15^a (.02)
OCC/500	4.83^c∗ (.71)	2.34^dc∗ (.54)	1.66^d∗(.13)	1.09^bc∗ (.47)	39.2^b∗(3.08)	0.78^b (.3)	0.028^b (.02)	1.16^a (.04)
OCC/400	4.34^c∗(.13)	1.65^d∗ (.36)	1.35^d∗ (.03)	0.59^c∗ (.04)	44.6^a∗ (3.15)	4.29^4a∗ (.22)	0.17^a∗ (.05)	1.13^a (.03)
OCC/FF	6.64^bc∗ (1.26)	2.93^c∗ (.17)	2.45^c∗ (.59)	1.47^ab∗ (.29)	36.6^bc (1.24)	0.36^bc (.12)	0.021^b. (.03)	1.11^a (.04)
OCC/FF/500	9.46^ab (1.55)	4.54^a (.05)	2.92^bc∗ (.40)	2.29^a (.44)	33.7^bc (.87)	0.22^c (.13)	0.024^b (.01)	1.14^a (.01)
OCC/FF/400	11.42^a (1.87)	4.42^ab (.32)	3.72^a (.22)	2.33^a (.36)	33.7^bc (1.41)	0.23^c (.29)	0.002^b (.04)	1.13^a (.03)
RPINE^3	11.95 (2.61)	4.36 (.97)	3.71 (.33)	2.34 (.36)	33.5 (2.48)	0.28 (.54)	0.004 (.03)	1.14 (.04)
Requirement^5	9.0 (min)	—	3.0 (min)	—	—	1.5 (max)	—	1.25

Means within a column followed by the same capital letter are not significantly different at 95 percent C.L. using the REGWQ 𝐹 test. Means with an asterisk are significantly different from control at 95 percent C.L. using Dunnett’s test for comparing means with a control. Numbers in parenthesis are standard deviations. Means are average of 3 replications.
¹MOR: Modulus of Rupture; MOE: Modulus of Elasticity; WA: Water Absorption; TS: Thickness Swelling; LV: Linear Variation with change in moisture content (from 30 to 90% RH).²1 MPa: 10.2 kg/cm; 1 GPa: 10.2 × 10³ kg/cm².³Control.⁴Samples with delamination.⁵BISON DIN [36].