Comparing the results presented in Fig. 8a and b, a sound insulation benefit of
the pavement is clearly achieved by applying corn cob particleboard on the floor of
the emitting room. The impact sound insulation gain (DLw) was estimated in 30 dB.
This result leads to the conclusion that the proposed corn cob particleboard may
have an interesting ability in terms of sound insulation. In order to complement this
analysis, Table 5, given in [9], presents the impact sound insulation gains of different
natural (e.g. kenaf, coconut fibre, sheep wool, cork and cellulose) and traditional
(e.g. glass wool and expanded polystyrene) sound insulation products. All the products
have a thickness of 2 cm contrasting with the 3 cm of thickness of the studied
corn cob particleboard. Taking into account the above described experimental sim-