Effect of disodium octaborate tetrahydrate on the mechanical properties of Dendrocalamus asper bamboo treated by vacuum/pressure method

Journal of Wood Science

Official Journal of the Japan Wood Research Society

Table 4 Summary of NDT excitation pulse measurements for determination of the dynamic MOE

Treatment conditions	MC (%)	Flexural MOE (GPa)	Longitudinal MOE (GPa)
Reference
Int A	10.72	20.91 (0.033)	21.94 (0.060)
Int B		24.57 (0.091)	27.99 (0.031)
Overall Avr		23.35 (0.067)	25.97 (0.12)
Specific¹		31.26 (0.044)^a	34.67 (0.051)^a
Water
Int A	9.37	21.44 (0.11)	22.29 (0.085)
Int B		24.34 (0.19)	26.36 (0.044)
Overall Avr		23.25 (0.17)	24.83 (0.10)
Specific¹		32.53 (0.14)^a	34.73 (0.039)^a
5% DOT
Int A	10.24	19.22 (0.057)	20.54 (0.039)
Int B		25.79 (0.067)	28.02 (0.042)
Overall Avr		23.26 (0.15)	24.90 (0.16)
Specific¹		33.34 (0.10)^a	35.61 (0.091)^a
8% DOT
Int A	10.23	22.36 (0.14)	23.33 (0.13)
Int B		24.76 (0.032)	27.33 (0.017)
Overall Avr		23.96 (0.086)	26.00 (0.099)
Specific¹		32.99 (0.044)^a	35.76 (0.051)^a

¹MOE (GPa)/ρ (g cm⁻³). Specific averages with the same letter (a–d) are statically equivalent. Three replicates were tested for Int A and five for Int B, with a total of eight replicates per treatment condition