Fig. 4

Shear plane surface of the specimen after block shear test (a) low density oil palm wood bonded with low density oil palm wood, (b) low density oil palm wood bonded with OSB, (c) low density oil palm wood bonded with plywood, (d) medium density oil palm wood bonded with medium density oil palm wood, (e) medium density oil palm wood bonded with OSB and (f) medium density oil palm wood bonded with plywood