TITLE:
Effect of Wood Waste on Acoustic and Magnetic Properties of Composite Bricks and Correlation between Sound Velocity and Magnetic Induction in These Bricks
AUTHORS:
Gilbert Ganga, Adolphe Kimbonguila Manounou, Narcisse Malanda, Michel Dzondo Gadet, Timothée Nsongo
KEYWORDS:
Kambala Tree, Wood Waste, Clay Brick, Sound Velocity, Magnetic Field
JOURNAL NAME:
Open Journal of Composite Materials,
Vol.10 No.1,
December
26,
2019
ABSTRACT: In the present study, kambala (botanical name: Chlorophora excelsa and Chlorophora
regia) wood wastes were incorporated into stabilized earth bricks in order
to test their acoustic insulation capacity of the walls; leading to better
waste management from the timber industry. Two methods have been applied to
determine the influence of the wood waste content in the stabilized earth
bricks, on the weakening of the level of noise reception coming from the
environmental medium, in an apartment built with composite bricks (earth + wood
chips + cement). This influence has also been analyzed on the magnetic field
induced by these bricks. The results showed that the level of sound reception
through these bricks decreases with increasing wood waste content regardless of
the method used (from 110 dB to 68 dB, respectively for Φb = 0% and Φb = 8%). The kambala
wood waste in cement-stabilized clay bricks induces a magnetic field that
increases with the wood waste content; the high contents of the wood chips
causing an increase in the magnetic permeability of the composite medium. The
correlation between the noise level and the magnetic field of the bricks shows
that the noise level declines with increasing magnetic induction of the bricks.