Energies,
Год журнала:
2024,
Номер
17(21), С. 5506 - 5506
Опубликована: Ноя. 4, 2024
Construction
and
demolition
waste
(CDW)
is
one
of
the
largest
contributors
to
global
streams,
simultaneously
posing
significant
environmental
resource
management
challenges.
The
CDW,
particularly
its
potential
for
energy
recovery
industrial
symbiosis,
has
garnered
increasing
attention
as
part
a
circular
economy
approach.
This
comprehensive
review
explores
practices
in
CDW
management,
analysing
theoretical
developments,
technological
advancements,
emerging
reuse
trends.
Background:
accounts
more
than
third
all
generated
EU.
A
wide
variety
materials,
such
concrete,
bricks,
wood,
glass,
metals,
plastics,
make
it
very
un-homogenous
stream
with
high
material
through
different
approaches.
Methods:
draws
on
an
extensive
analysis
scientific
literature,
case
studies,
industry
reports
assess
current
assessment
feasibility
recovery,
object
reconstruction.
Results:
originality
research
based
Latvian
study
that
provides
valuable
insights
into
household-level
progress
towards
relevant
UN
SDGs.
Conclusions:
Various
streams
have
undeniable
valorization
various
Currently,
most
common
approach
recycling,
although
broaden
application
within
framework.
For
instance,
symbiosis
solution
can
not
only
boost
but
also
significantly
increase
circularity.
Sustainability,
Год журнала:
2025,
Номер
17(3), С. 1057 - 1057
Опубликована: Янв. 27, 2025
This
study
investigates
the
design
and
implementation
of
circular
economy
(CE)
strategies
for
managing
construction
demolition
waste
(CDW)
in
Santiago
Metropolitan
Region
Chile
(SMRC).
The
research
aimed
to
identify
key
factors
influencing
current
future
adoption
CE
practices
CDW
management
related
socio-environmental,
technical,
financial,
strategic-regulatory
aspects,
employing
Delphi
method
gather
expert
insights.
Findings
reveal
that
lack
knowledge
about
sustainable
absence
regulatory
frameworks
disposal
are
most
critical
barriers
effective
implementation.
recommends
enhancing
public
awareness
environmental
education
through
government
school
programs,
as
well
enacting
stricter
legislation
combat
illegal
encourage
valorization
secondary
raw
materials
within
companies.
Additionally,
it
emphasizes
importance
designing
projects
prioritize
avoidance
development
infrastructure,
technology,
processes
efficient
material
separation
recycling.
also
highlights
potential
challenges
such
stagnation
practices,
skilled
labor
shortages,
limited
innovation.
It
underscores
need
a
comprehensive
approach
integrates
dimensions
promote
sustainability
at
both
regional
global
levels.
Polymers,
Год журнала:
2025,
Номер
17(5), С. 570 - 570
Опубликована: Фев. 21, 2025
Geopolymer
technology
is
considered
a
strategic
alternative
for
recycling
construction
and
demolition
waste
(CDW)
to
produce
new
products
which
meet
the
requirements
of
environmental
energy
sustainability.
The
separation
management
CDW
fractions
still
technological
complex
process
and,
even
if
large-scale
quite
common,
necessity
perform
this
treatment
may
reduce
economic
benefits
reuse.
So,
very
promising
option
represented
by
manufacturing
geopolymers
using
unseparated
CDW.
In
aim,
deriving
from
cement-based
mortars,
bricks
natural
stones
have
been
selected
widely
characterized
mineralogical,
chemical
morphological
point
view.
Then,
geopolymer
mortars
were
produced
several
amounts
either
single
fraction
or
mixture
waste.
chemical,
physical,
mechanical,
microstructural
characterization
geopolymer-produced
was
carried
out
assess
how
combination
different
quantities
mixed
affected
final
properties.
particular,
geopolymeric
unselected
showed
higher
mechanical
properties,
despite
lower
apparent
density,
when
compared
improvement
features
seems
be
not
amount
used,
providing
encouraging
findings
promote
actual
use
with
resulting
enhancement
benefits.
Scientific Reports,
Год журнала:
2025,
Номер
15(1)
Опубликована: Апрель 15, 2025
Abstract
The
increasing
risk
of
fire
hazards
and
the
environmental
burden
construction
demolition
(C&D)
waste
necessitate
sustainable,
fire-resistant
building
materials.
This
study
investigates
potential
recycled
aggregate
concrete
(RAC)
reinforced
with
fibers
to
enhance
high-temperature
performance
while
promoting
utilization.
In
first
phase,
mixtures
0%,
25%,
50%
(labeled
RAC00,
RAC25,
RAC50)
were
evaluated
at
23
°C,
300
600
°C.
RAC00
exhibited
a
16%
reduction
in
compressive
strength
°C
over
While
RAC25
initially
showed
10–30%
decrease
compared
conventional
room
temperature,
it
only
1%
decline
28%
making
most
effective
composition
for
further
study.
second
steel
(SF)
polypropylene
(PPF)
incorporated
into
yielding
substantial
tensile
improvements:
RAC25-SF
increased
by
5.6%
24.8%
28.3%
RAC25-PPF
12.5%
increase
but
declined
higher
temperatures,
9.9%
32.9%
SF
enhanced
across
all
PPF
reduced
above
200
Fiber
additions
improved
ductility,
toughness,
moisture
retention,
mitigating
crack
propagation
under
heat.
Statistical
modeling
using
ANOVA
response
surface
methodology
(RSM)
confirmed
high
model
validity
(R
2
>
0.80).
concludes
that
offers
heat-resistant
material,
addressing
both
resilience
C&D
challenges.
Waste Management & Research The Journal for a Sustainable Circular Economy,
Год журнала:
2023,
Номер
42(11), С. 953 - 976
Опубликована: Окт. 31, 2023
In
Sri
Lanka,
the
management
of
Construction
&
Demolition
(C&D)
waste
poses
a
major
problem,
leading
to
environmental
degradation
and
depletion
resources.
This
study
aims
tackle
these
issues
by
examining
implementation
Circular
Economy
(CE)
strategies
within
construction
industry
Lanka.
The
focus
is
on
reducing
generation
maximizing
resource
utilization
during
demolitions
repurpose,
as
well
material
recovery
production
stages
building
project
life
cycle.
These
are
crucial
in
terms
consumption.
A
qualitative
approach
was
employed
this
research,
utilizing
Delphi
technique
gather
insights
through
series
three
rounds
expert
interviews.
first
round,
17
experts
were
involved,
followed
15
second
12
final
round.
data
collected
from
interviews
analysed
using
manual
content
analysis
methods.
Based
research
findings,
total
14
C&D
Waste
Management
(WM)
identified
specifically
Demolitions
Repurpose
Stage
For
each
issue,
suitable
proposed
overcome
them
effectively.
Furthermore,
examined
impact
CE
minimizing
context
iron
triangle.
Similarly,
Material
Recovery
Production
presented
eight
WM
issues,
accompanied
corresponding
address
them.
also
explored
influence
mitigating
considering
During
repurpose
stage,
optimizing
utilization.
involves
carefully
deconstructing
buildings
salvage
recover
materials
that
can
be
reused
or
repurposed.
Waste Management & Research The Journal for a Sustainable Circular Economy,
Год журнала:
2024,
Номер
unknown
Опубликована: Фев. 22, 2024
Construction
and
demolition
(C&D)
waste
recycling
plays
a
significant
role
in
reduction
carbon
reduction,
which
is
critical
for
sustainable
development.
However,
due
to
various
limitations
such
as
financial
problems,
C&D
industry
not
well
developed
developing
countries.
To
address
this
problem,
study
combines
complex
network
theory
evolutionary
game
analyse
the
diffusion
of
behaviour
among
enterprises
under
governmental
incentive
policies
within
context.
The
results
demonstrate
that
size
has
limited
effects
on
Watts–Strogatz
small-world
network.
Additionally,
highlights
clear
impact
probability,
initial
rate
connection
degree
path.
By
quantitatively
investigating
tools,
contributes
knowledge
management
provides
valuable
implications
stakeholders
seeking
promote
recycling.
Buildings,
Год журнала:
2024,
Номер
14(8), С. 2519 - 2519
Опубликована: Авг. 15, 2024
Although
the
beneficial
role
of
enterprises
in
management
construction
and
demolition
waste
(CDW)
should
not
be
overlooked,
existing
relevant
studies
have
neglected
to
address
specific
effects
behavioral
decisions
leaders
employees
within
CDW
recycling
projects.
This
study
creatively
introduces
psychological
contract
theory
into
field
aims
reveal
mechanism
participation
behaviors
between
Using
Stackelberg
game
method,
a
model
consisting
enterprise
was
constructed
analyze
optimal
decision-making
under
two
cases
whether
or
contributed
additional
effort.
The
conclusions
this
are
as
follows:
(1)
profits
always
positively
correlated
with
degree
employee
Unlike
case
leaders,
effect
effort
on
hinges
coefficient
When
is
below
threshold,
excessive
can
negatively
impact
their
own
profits.
exceeds
related
(2)
Similar
change
profits,
total
profit
influenced
by
coefficient.
However,
increases,
shows
significant
increase
before
enriches
theoretical
contracts
provides
guidance
for
Buildings,
Год журнала:
2024,
Номер
14(2), С. 340 - 340
Опубликована: Янв. 25, 2024
In
the
context
of
environmental
protection,
construction
industry
plays
a
key
role
with
significant
CO2
emissions
from
mineral-based
materials.
Recycling
these
materials
is
crucial,
but
presence
hazardous
substances,
i.e.,
in
older
building
materials,
complicates
this
effort.
To
be
able
to
legally
introduce
substances
into
circular
economy,
reliable
predictions
within
minimal
possible
time
are
necessary.
This
work
introduces
machine
learning
approach
for
detecting
trace
quantities
(≥0.06
wt%)
minerals,
exemplified
by
siderite
calcium
carbonate
mixtures.
The
model,
trained
on
1680
X-ray
powder
diffraction
datasets,
provides
dependable
and
fast
predictions,
eliminating
need
specialized
expertise.
While
limitations
exist
transferability
other
mineral
traces,
offers
automation
without
expertise
potential
real-world
applications
prediction
time.
