NDT,
Journal Year:
2024,
Volume and Issue:
2(4), P. 532 - 548
Published: Dec. 6, 2024
Concrete
is
currently
the
most
used
construction
material,
mainly
due
to
its
mechanical
strength,
chemical
stability,
and
low
cost.
This
material
affected
by
wear
processes
caused
environment,
which
lead
a
reduction
in
useful
life
of
infrastructure
long
term.
These
can
cause
cracks,
corrosion
reinforcing
steel,
loss
load
capacity,
concrete
section,
among
other
problems.
Considering
above,
it
necessary
carry
out
durability
studies
on
determine
integrity
conditions
found,
reasons
for
deterioration,
environmental
factors
that
affect
it,
under
these
conditions,
develop
restoration
or
protection
plans.
Generally,
include
non-destructive
testing
such
as
ultrasonic
pulse
velocity,
electrical
resistivity,
porosity
measurement,
capillary
absorption
rate.
techniques
make
possible
characterize
obtain
information
total
volume
pores,
susceptibility
decrease
resistance,
presence
humidity,
aggressive
ions
inside
concrete.
In
this
work,
two
are
presented
with
tests
carried
active
piers
20
40
years
old.
located
coastal
areas
southern
Mexico
Gulf
side,
80%
average
annual
relative
temperatures
above
33
°C
average,
high
concentrations
salts,
handling,
vibrations,
flora
fauna
typical
marine
ecosystem,
etc.
The
results
obtained
reveal
important
about
current
state
damage
environment
over
time.
allowed
us
decisions
preventive
actions
appropriate
specific
projects
each
pier.
Buildings,
Journal Year:
2025,
Volume and Issue:
15(5), P. 775 - 775
Published: Feb. 26, 2025
In
the
transition
towards
a
circular
economy,
redesigning
construction
materials
for
enhanced
sustainability
becomes
crucial.
To
contribute
to
this
goal,
paper
investigates
integration
of
carbonated
aggregates
(CAs)
and
basalt
fibre-reinforced
polymers
(BFRPs)
in
concrete
infrastructures
as
an
alternative
natural
sand
(NS)
steel
reinforcement.
CA
is
manufactured
using
accelerated
carbonation
that
utilizes
CO2
turn
industrial
byproducts
into
mineralised
products.
The
structural
performance
BFRP-reinforced
simply
supported
slab
was
investigated
through
conducting
series
experimental
tests
assess
key
parameters,
including
bond
strength,
bearing
capacity,
failure
behavior,
cracking
bbehaviour.
Carbon
footprint
analysis
(CFA)
conducted
understand
environmental
impact
incorporating
BFRP
CA.
results
indicate
exhibits
higher
water
absorption
rate
compared
NS.
As
ratio
increased,
ultrasonic
pulse
velocity
(UPV),
compressive,
tensile,
flexural
strength
decreased,
capacity
increased.
Furthermore,
25%
has
no
significant
effect
on
BFRP.
However,
load
decreased
with
increasing
replacement
ratio.
Finally,
integrating
50%
slabs
reduced
slab’s
CFA
by
9.7%
when
steel-reinforced
(RC)
slabs.
Advances in Polymer Technology,
Journal Year:
2025,
Volume and Issue:
2025(1)
Published: Jan. 1, 2025
This
article
presents
a
review
of
achievements
in
the
research
aimed
at
improving
main
building
material—concrete—along
with
its
physical,
mechanical,
and
operational
properties.
As
is
well
known,
near
future,
role
concrete
will
continue
to
be
primary
construction
buildings
structures
due
increasing
demand.
However,
despite
advantages,
this
important
material
not
without
flaws.
In
particular,
porosity,
highly
permeable
liquids,
making
it
insufficiently
resistant
frost
corrosion
sometimes
even
brittle.
At
same
time,
mixtures
used
modern
must
meet
requirements
such
as
good
adhesive
properties,
improved
waterproofing,
high
workability,
retention
rheological
characteristics
over
potential
for
increased
strength.
Today,
use
polymer
additives
modifiers
particularly
relevant.
The
purpose
examine
recent
advances
understanding
impact
both
inorganic
organic
nature
on
Continued
field
exploration
new
opportunities
are
engineering
advancements
development
materials.
Coatings,
Journal Year:
2025,
Volume and Issue:
15(2), P. 175 - 175
Published: Feb. 4, 2025
The
aim
of
this
research
was
to
examine
the
effect
water-based
hydrophobic
impregnations
on
concrete
in
order
improve
its
durability,
chemical
resistance,
and
physical–mechanical
parameters.
purpose
prevent
as
much
water
evaporation
possible
during
hydration,
which
resulted
improvement
properties
including
strength,
resistance
high-pressure
water,
tightness,
etc.
Water-based
based
silane
siloxane,
epoxy
resin,
oil
were
chosen
achieve
improvements
comparison
with
solvent-based
also
performed
using
determination
absorbency,
pressure
penetration
depth,
watertightness,
aggressive
environment.
microstructure
observed
a
digital
microscope
scanning
electron
(SEM).
Samples
agents
exhibited
higher
contact
angle,
lower
environment,
when
compared
untreated
surfaces,
confirming
repellency
water-soluble
impregnations.
positive
compressive
strength
recorded.
Furthermore,
benefit
addition
0.1
wt.%
nanocellulose
into
observed.
Based
obtained
results,
it
found
that
reduced
depth
pressurized
seepage
increased
after
28
days
by
2
MPa.
Fractal and Fractional,
Journal Year:
2025,
Volume and Issue:
9(4), P. 254 - 254
Published: April 17, 2025
Concrete
materials
exposed
to
sulfate-rich
geological
environments
are
prone
structural
durability
degradation
due
chemical
erosion.
Silane-based
protective
can
enhance
the
of
concrete
structures
under
harsh
environmental
conditions.
This
study
investigates
evolution
acoustic
emission
(AE)
precursor
characteristics
in
silane-protected,
sulfate-eroded
specimens
during
uniaxial
compression
failure.
Unlike
existing
research
focused
primarily
on
material
properties,
this
work
establishes
a
novel
framework
linking
“silane
treatment–AE
parameters–failure
identification”,
thereby
bridging
gap
damage
analysis
silane
protection.
Uniaxial
compressive
strength
tests
and
AE
monitoring
were
conducted
both
silane-protected
unprotected
specimens.
A
diagnostic
system
integrating
dynamic
b-value,
mutation
detection
energy
concentration
index
ρ,
multifractal
detrended
fluctuation
(MF-DFA)
was
developed.
The
results
demonstrate
that
exhibited
distinct
b-value
escalation
followed
by
an
abrupt
decline
prior
peak
load,
whereas
showed
disordered
fluctuations.
point
ρ
for
occurred
at
0.83
σc,
representing
9.2%
threshold
elevation
compared
0.76
σc
specimens,
confirming
delayed
accumulation
protected
MF-DFA
revealed
narrowing
spectrum
width
(∆α)
indicating
reduced
heterogeneity
signals,
while
maintained
significant
divergence.
∆fα
localization
weak
signals
dominated
early
loading
stages
groups,
with
crack
involving
sliding
friction.
During
mid-late
elastic
phase,
propagation
became
predominant
failure
mode.
Experimental
evidence
confirms
engineering
significance
protection
extending
service
life
sulfate
environments.
proposed
multi-parameter
methodology
provides
quantitative
criteria
safety