E3S Web of Conferences,
Journal Year:
2024,
Volume and Issue:
588, P. 03005 - 03005
Published: Jan. 1, 2024
This
study
investigates
the
effects
on
mechanical
and
durability
properties
of
concrete
by
including
nano-silica,
nano-
titanium
dioxide,
nano-alumina.
The
mixes
included
nanoparticles
in
a
range
quantities,
from
0.5%
to
4%
cement
weight.
Several
experimental
tests
were
performed,
those
for
chloride
permeability,
workability,
compressive
strength,
flexural
strength.
Compressive
strength
increased
40.5
MPa
permeability
decreased
1000
Coulombs,
indicating
an
improvement
durability,
when
nano-silica
content
was
found
be
3%.
Nano-titanium
dioxide
nano-alumina
also
shown
minor
but
noticeable
improvement.
A
detailed
SEM
microstructural
analysis
demonstrates
formation
dense
refined
microstructure,
lending
credence
claims
improved
properties.
Results
show
that
adding
concrete,
particularly
increases
its
performance
without
reducing
or
durability.
Smart Cities,
Journal Year:
2024,
Volume and Issue:
7(6), P. 3458 - 3488
Published: Nov. 12, 2024
This
paper
presents
a
comprehensive
review
of
the
transformative
impacts
3D
printing
technology
on
smart
cities.
As
cities
face
rapid
urbanization,
resource
shortages,
and
environmental
degradation,
innovative
solutions
such
as
additive
manufacturing
(AM)
offer
potential
pathways
for
sustainable
urban
development.
By
synthesizing
66
publications
from
2015
to
2024,
study
examines
how
improves
infrastructure,
enhances
sustainability,
fosters
community
engagement
in
city
planning.
Key
benefits
include
reducing
construction
time
material
waste,
lowering
costs,
enabling
creation
scalable,
affordable
housing
solutions.
The
also
addresses
emerging
areas
integration
with
digital
twins
(DTs),
machine
learning
(ML),
AI
optimize
infrastructure
predictive
maintenance.
It
highlights
use
materials
soft
robotics
structural
health
monitoring
(SHM)
repairs.
Despite
promising
advancements,
challenges
remain
terms
cost,
scalability,
need
interdisciplinary
collaboration
among
engineers,
designers,
planners,
policymakers.
findings
suggest
roadmap
future
research
practical
applications
cities,
contributing
ongoing
discourse
technologically
advanced
Nanotechnology Reviews,
Journal Year:
2025,
Volume and Issue:
14(1)
Published: Jan. 1, 2025
Abstract
Because
cement
is
the
primary
component
of
concrete,
production
concrete
results
in
a
significant
amount
carbon
dioxide
emissions.
Concrete,
thus,
has
an
impact
on
environment.
Concrete
may
undergo
change
its
nanostructure
if
it
contains
even
trace
number
nanoparticles
(NPs).
Constructions
made
would
be
more
long-lasting
and
have
smaller
Researchers
know
very
little
about
NPs
before
they
are
utilized,
findings
their
investigations
been
inconsistent
despite
fact
that
large
studies
conducted.
In
contrast
to
inclusion
metals,
NPs,
particularly
nano-silica
(NS)
nano-ferrite
(NF),
garnered
lot
attention.
Due
perform
effectively
than
metal
complexes.
To
evaluate
bids,
essential
provide
background
information
most
common
methods
for
manufacture
fabrication
nanomaterials.
The
parameters
influence
behavior
cement-based
materials
also
subject
extensive
research.
There
processes
mixing
dispersion,
as
well
super-plasticizers
nanoparticle
agglomeration.
mechanical
properties
mixtures
containing
assessed.
This
encompasses
modulus
elasticity,
splitting
tensile
strength,
compressive
flexural
strength.
An
assessment
conducted
ascertain
penetration
chloride
ions
water,
permeability,
fire
resistance.
study
examines
various
dispersing
NS
NF
particles
reduce
probability
investigation
how
buildup
affects
nano-modified
concrete.
revealed
augmenting
substitution
by
3–5%
can
enhance
hydration
process
enhanced
extensively
disseminated
which
denser
microstructure.
incorporation
into
enhances
durability,
at
concentrations
minimal
2%.
graphical
abstract
encapsulates
research
this
article.
