Resources Conservation & Recycling Advances,
Journal Year:
2024,
Volume and Issue:
22, P. 200216 - 200216
Published: April 12, 2024
The
imperative
to
mitigate
carbon
emissions
and
seek
sustainable
alternatives
cementitious
materials
has
driven
the
advancement
of
geopolymer
binders,
which
are
inorganic
binders
aluminosilicate
industrial-waste
activated
by
alkaline
agents.
use
geopolymers
carries
potential
for
significant
reductions
in
greenhouse
gas
emission.
Furthermore,
incorporation
plastic
waste
as
aggregates
addresses
not
only
resource
conservation
but
also
environmental
sustainability.
This
study
conducted
a
comprehensive
life-cycle
assessment
from
fly
ash
precursor
with
polyethylene
terephthalate
(PET)
substitute
natural
aggregates.
It
was
observed
that
when
replacing
PET
maximum
extent,
global
warming
(GWP)
category
related
aggregate
preparation
increased
16.7
%.
increase
attributed
generated
during
processing,
including
activities
such
washing
grinding.
total
GWP
produce
one
cubic
meter
mixture
643.55
kgCO2-e
without
667.86
optimization
energy-intensive
processes
led
remarkable
reduction
19.63
%
production
These
findings
show
improved
sustainability
mixtures
emphasize
critical
role
optimizing
mitigating
their
impact.
E3S Web of Conferences,
Journal Year:
2023,
Volume and Issue:
430, P. 01203 - 01203
Published: Jan. 1, 2023
This
article
investigates
the
possible
synergy
between
geopolymers
and
plastics
as
a
method
for
sustainable
composite
materials,
addressing
growing
worldwide
need
environmentally
responsible
solutions.
Geopolymers,
which
provide
low-carbon
alternatives
to
traditional
building
are
being
studied
alongside
plastics,
recognised
their
flexibility
lightweight
properties.
The
research
emphasises
ability
of
this
attain
increased
mechanical,
thermal,
chemical
qualities
by
investigating
molecular-level
interaction
processes,
enhanced
material
properties,
applications
in
diverse
sectors.
Furthermore,
assesses
environmental
consequences,
such
decreased
carbon
emissions
energy
usage,
while
also
analysing
manufacturing
scaling
problems.
work
lays
way
unique
route
science,
poised
greatly
contribute
more
resilient
built
environment,
giving
insights
into
both
present
accomplishments
future
possibilities.
Construction and Building Materials,
Journal Year:
2024,
Volume and Issue:
426, P. 136141 - 136141
Published: April 12, 2024
Alkali-activated
binders
(AAB)
are
low-carbon
alternatives
to
cement
used
in
traditional
concrete
manufacture.
This
paper
presents
a
state-of-the-art
survey
of
the
historical
background,
synthesis
development,
reaction
mechanism,
and
recent
advances
AAB.
The
parameters
influencing
engineering
performance
AABs,
including
physicochemical
characteristics
precursor
materials,
formulation
dosage
alkaline
activators,
type
period
curing,
were
critically
reviewed.
In
this
regard,
three
different
material
sources
identified:
industrial
by-products,
natural
aluminosilicates,
agricultural
waste
which
have
various
availability,
reactivity,
cost,
value
worldwide.
addition,
life
cycle
assessment
AAB
mixtures
compiled.
challenges
that
AABs
face
towards
commercial
applications
also
discussed.
selection
appropriate
precursors,
production
low-cost
mix
design
parameters,
fundamental
mechanisms,
properties,
construction
processing
application,
standards,
sustainability
aspects
constitute
challenges.
can
be
potential
substitute
for
conventional
if
it
ensures
true
not
just
greenwashing.
Journal of Building Engineering,
Journal Year:
2024,
Volume and Issue:
84, P. 108501 - 108501
Published: Jan. 10, 2024
Traditional
building
materials
such
as
cement
products
release
a
large
amount
of
carbon
dioxide
during
their
preparation
and
usage,
which
has
negative
impact
on
the
environment.
On
other
hand,
3D
printing
with
geopolymer
adopts
renewable
low-carbon
emission
raw
materials.
It
also
possesses
characteristics
energy
efficiency
resource-efficient
utilization,
help
to
reduce
emissions
improve
sustainability.
Therefore,
development
them
is
great
significance.
This
paper
comprehensively
reviews
systems,
processability,
including
flowability
thixotropy,
microstructure.
The
conducts
in-depth
research
sustainability
environmental
impact.
evaluation
shows
that
initial
content
silicon,
aluminium,
calcium
in
silicate
material
plays
an
important
role
gel
structure
microstructural
geopolymer.
Aluminium
can
promote
reaction
rate,
increase
degree,
product
formation.
Silicon
helps
strength
enhance
its
mechanical
properties.
Calcium
facilitates
formation
stability
three-dimensional
network
structure,
further
improving
stability.
Furthermore,
reactivity
key
factor
affecting
interlayer
bonding
interface
Finally,
considering
sustainability,
selection
crucial
reducing
emissions,
consumption,
costs.
Compared
cement,
lower
costs,
thus
considered
sustainable
material.
Cleaner Materials,
Journal Year:
2024,
Volume and Issue:
12, P. 100239 - 100239
Published: March 15, 2024
Due
to
rapid
population
growth
and
urbanization,
construction
activities
have
increased
worldwide
resulting
in
generation
of
enormous
volume
demolition
(C&D)
waste.
On
one
hand,
C&D
waste
is
generated
during
the
construction,
destruction,
rehabilitation
existing
structures.
While
on
other,
transportation
sector
consumes
large
volumes
aggregates
for
pavement
maintenance.
The
extraction
finite
natural
causes
potential
damage
environment.
Recycled
waste,
once
converted
into
recycled
aggregates,
has
be
utilized
layers
due
its
sound
quality
composition;
also
lowering
landfill
loads.
This
review
article
critically
summarizes
environmental
risks
regarding
chemical
composition
leaching
behavior
wastes
pavements.
Additionally,
this
evaluates
impacts
aggregate
production
application
pavements
using
life
cycle
assessment
(LCA).
Overall,
aim
study
investigate
benefits
enable
highway
administrations
adopt
promote
use
development
sustainable
road
infrastructure.
In
way,
attempts
a
new
era
achieve
net
zero
goal.
Buildings,
Journal Year:
2023,
Volume and Issue:
13(12), P. 3033 - 3033
Published: Dec. 6, 2023
The
21st
century
has
witnessed
a
substantial
increase
in
the
demand
for
construction
materials,
mainly
influenced
by
growing
population.
This
resulted
higher
prices
these
materials
and
also
placed
considerable
burdens
on
environmental
resources,
prompting
search
eco-friendly
economically
viable
alternatives
such
as
geopolymer
to
replace
traditional
like
cement.
benefits
of
substitutes
cement
concrete
extend
beyond
their
exceptional
durability.
Initially,
was
introduced
address
impact
arising
from
carbon
dioxide
emissions
consumption
fossil
fuels
through
production
current
review
investigates
recent
advances
regarding
durability
characteristics
materials.
includes
aspects
water
absorption,
temperature
resistance,
sulfuric
acid
sulfate
chloride
ion
penetration,
freeze–thaw
among
others.
results
this
highlight
concrete’s
enhanced
over
cement-based
concrete.
Furthermore,
offers
recommendations
outlines
potential
research
avenues
further
exploration
