TABLE 4.

Mechanical properties, mean (standard deviation).

	Compression			Tension			Bending
Sample type	Failure stress	Elastic modulus	Initial elastic modulus	Failure stress	Elastic modulus	Initial elastic modulus	Failure stress	Elastic modulus	Initial elastic modulus
	(MPa)	(MPa)	(MPa)	(MPa)	(MPa)	(MPa)	(MPa)	(MPa)	(MPa)
1	1.16 (0.2)	2.53 (0.23)	2.41 (0.12)	0.17 (0.02)	6.54 (0.81)	9.67 (1.22)	0.43 (0.08)	5.61 (0.57)	7.91 (1.24)
2	0.97 (0.1)	12.29 (1.43)	10.01 (1.44)	0.52 (0.14)	106.87 (34.75)	153.53 (38.04)	1.75 (0.45)	90.05 (20.07)	94.97 (18.32)
3	0.71 (0.11)	10.58 (3.16)	11.45 (2.47)	0.2 (0.08)	53.6 (23.17)	77.85 (29.04)	0.91 (0.34)	72.29 (17.38)	78.29 (20.89)
4	0.88 (0.09)	9.25 (1.56)	8.26 (1.57)	Slippage at clamps			0.94 (0.48)	36.15 (15.76)	39.47 (18.82)