Table 6.
Mechanical properties of each wood species and treatment a
Response | Treatment | Jabon | Mangium | Pine |
MOR (kgf/cm2) | Untreated | 426 (29)a | 564 (32)b | 549 (27)b |
Immersion | 512 (35)b | 815 (37)c | 780 (18)c |
Impregnation | 563 (49)b | 889 (54)d | 912 (45)d |
Strength class | Untreated | IV | III | III |
Immersion | III | II | II |
Impregnation | III | II | II |
MOE (1,000 kgf/cm2) | Untreated | 49.2 (2.9)a | 76.8 (3.3)d | 75.6 (1.8)d |
Immersion | 54.5 (2.6)b | 91.7 (1.5)e | 97.5 (4.0)fg |
Impregnation | 60.7 (3.7)c | 93.9 (4.2)ef | 99.9 (6.9)g |
Side hardness (kgf/cm2) | Untreated | 146 (14)a | 308 (19)c | 346 (25)d |
Immersion | 169 (17)ab | 367 (5)de | 439 (27)f |
Impregnation | 176 (17)b | 373 (17)e | 452 (28)f |
End hardness (kgf/cm2) | Untreated | 289 (26) | 402 (20) | 456 (31) |
Immersion | 298 (19) | 462 (33) | 516 (27) |
Impregnation | 322 (18) | 496 (30) | 532 (36) |
Values in parentheses are standard deviations. Values followed by the same letter within the rows in each respond are not statistically different regarding to Duncan’s multi range test.