Page 59 - Kutnar, Andreja, et al., eds., 2015. Proceedings of the 1st COST Action FP1307 International Conference - Life Cycle Assessment, EPDs, and modified wood. University of Primorska Press, Koper.

ts
to
increase
preservative
retention
in
fir

Seref
Kurt1,
Hüseyin
Yörür2,
Muhammed
Nuri
Günay3,
Taner
Yildiz4

1
Karabuk,
Turkey,
University
of
Karabuk,
skurt@karabuk.edu.tr

2
Karabuk,
Turkey,
University
of
Karabuk,
hyorur@karabuk.edu.tr

3
Karabuk,
Turkey,
University
of
Karabuk,
m.nurigunay@karabuk.edu.tr

Keywords:
Retention,
fir,
liquid
nitrogen

Wood
is
a
material
which
is
used
in
almost
every
area
of
daily
life
by
mankind,
including
building

materials,
decorations,
and
landscaping.
When
exposed
to
outdoor
weather
conditions,
non-­‐
pressure
treated
wood
has
a
service
life
70
%
-­‐
80
%
less
than
treated
wood.
This
is
even
the
case

with
naturally
resistant
wood
species.
When
using
fast-­‐growing,
commercial
wood
species
that

are
used
in
outdoor
applications,
they
are
most
often
pressure
treated
with
a
wood
preservative.

In
an
attempt
to
improve
preservative
treatment
retention
in
spruce
and
fir,
specimens
were

impregnated
with
liquid
nitrogen
(-­‐190
°C)
along
with
the
wood
preservative
using
pressure.

Using
liquid
nitrogen
as
a
carrier
significantly
increased
the
amount
of
preservative
retention.

47