2022 Advances in Science and Engineering Technology International Conferences (ASET),
Journal Year:
2022,
Volume and Issue:
unknown, P. 1 - 6
Published: Feb. 21, 2022
Concrete
structures
like
all
materials
are
prone
to
natural
or
anthropogenic
degradation
and
deterioration
over
time
as
they
have
rather
low
tensile
strength.
In
the
case
of
structural
materials,
long-term
creates
microcracks
which
increases
permeability
eventually
lead
failure.
As
a
result,
mending
is
required
improve
material
reliability
longevity.
Maintenance
concrete
structure
process
that
be
done
by
inspecting
repairing
on
regular
basis
ensure
in
well-working
condition,
has
longer
service
life
allows
for
early
identification
defects.
However,
there
their
maintenance
hard
reach
thus
put
human
danger.
Therefore,
self-healing
plays
major
role
protecting
human-life,
maintaining
through
self-repairing
cracks
without
external
aid.
addition,
improvement
mechanical
On
other
side,
its
essential
keen
understanding
about
various
microbiological
technologies
used
concrete.
This
paper
presents
an
overview
technologies,
use
today's
applications,
limitations
bio
important
in-depth
techniques
future
research.
Journal of Materials Research and Technology,
Journal Year:
2024,
Volume and Issue:
29, P. 2376 - 2395
Published: Feb. 2, 2024
Cracks
in
concrete
structures
can
significantly
decrease
their
lifespan
by
exposing
reinforcement
to
outside
environment,
leading
degradation.
To
address
this
issue,
self-healing
techniques
have
been
developed,
including
biomineralization-based-self
healing,
where
bacteria
are
employed
initiate
microbially
induced
calcium
precipitate
(MICP),
promoting
the
healing
of
cracks.
This
article
explores
extreme
environmental
conditions
pH
and
temperature
which
reduce
sustainability
potential
bacteria.
Furthermore,
it
implementation
using
aimed
at
mitigating
adverse
effects
environment
on
bacteria,
thereby
enhancing
capabilities.
Notably,
studies
found
that
mechanical
strength
be
increased
cell
concentrations
105
108
cells/ml.
Based
review,
is
depends
factors
such
as
temperature,
well
methods
concrete.
Moreover,
there
exists
a
direct
correlation
between
bacterial
concentration
alterations
properties
The
incorporation
leads
increment
properties,
with
enhancement
up
42.8
%.
Understanding
interplay
crucial
optimizing
biomineralization-based
durability
infrastructure.
Case Studies in Construction Materials,
Journal Year:
2024,
Volume and Issue:
20, P. e03298 - e03298
Published: May 17, 2024
The
most
desirable
features
of
concrete
structures
are
prolonged
durability
and
serviceability.
Though,
cement-based
exhibit
outstanding
mechanical
properties,
cracks
inexorably
causing
damage
to
the
structures.
time,
labour,
materials,
money
invested
in
restoration,
repair,
rehabilitation
huge.
incessant
solution
prevent
from
is
through
self-healing
which
will
be
an
integral
part
available
This
review
article
explores
mechanism,
methods,
materials
employed
cement
cementitious
composites.
Based
on
500
globally
published
research
articles
mortar,
concrete,
composites,
this
also
provides
a
comprehensive
overview
experimental
studies,
different
strategies,
effectiveness
It
can
observed
literature
that
composites
depends
primarily
choice
exposure
conditions,
age,
intrinsic
or
extrinsic
properties
agents.
Sustainability,
Journal Year:
2022,
Volume and Issue:
14(18), P. 11646 - 11646
Published: Sept. 16, 2022
Research
on
self-healing
concrete
has
flourished
in
recent
years.
This
paper
aims
to
comprehensively
understand
the
current
research
situation
and
future
development
directions
of
concrete.
It
summarizes
analyzes
publications
from
1974
2021
reveal
key
topics
trends
identifies
most
productive
constitutes.
The
bibliometric
analysis
software
Biblioshiny
was
used
analyze
1433
documents
written
by
2961
authors
published
450
sources
retrieved
Scopus.
included
an
overview
leading
information
authors,
countries,
universities/institution,
publications,
keywords.
Results
obtained
author
suggest
that
tracking
work
is
essential,
as
it
will
provide
researchers
with
valuable
information,
such
possible
leads
ideas
for
collaboration
opportunities.
Countries,
universities/institutes,
revealed
more
exposure
a
higher
citation
rate,
significantly
promoting
development.
A
keywords
highlighted
focus
areas
presented
potential
gaps
literature.
findings
this
study
scholars
comprehensive
understanding
field
its
directions.
can
also
benefit
stakeholders
making
effective
decisions
direct
industry.
Developments in the Built Environment,
Journal Year:
2024,
Volume and Issue:
17, P. 100331 - 100331
Published: Jan. 14, 2024
This
study
explores
the
potential
impact
of
natural
soil
on
concrete
crack
self-healing
in
sub-surface
structures.
Three
types
pre-cracked
cement
mortar
samples
were
prepared
for
laboratory
experiments,
with
some
inoculated
bacterial
healing
agents,
others
supplemented
nutrients
to
attract
indigenous
bacteria,
and
plain
served
as
controls.
The
placed
within
saturated
under
two
conditions:
slightly
organic
sterilised
soil.
After
100
days,
closure
was
evaluated
through
microscopic
inspection,
water
absorption
tests,
SEM-EDX
scanning.
results
indicated
calcite
precipitation
surfaces
across
all
samples,
but
varying
ratios
(16%–81%).
Notably,
most
incubated
exhibited
an
overall
increase
(up
59.4%)
ratio
compared
those
soil,
highlighting
microorganisms
their
microbial
activity
enhancing
biogenic
mineral
thus
protecting
Case Studies in Construction Materials,
Journal Year:
2024,
Volume and Issue:
20, P. e02942 - e02942
Published: Feb. 3, 2024
Self
compacting
concrete
is
incorporated
with
a
high
amount
of
fines
and
chemical
admixtures
low
w/c
ratio,
which
leads
to
shrinkage
microcracks.
Shrinkage
in
the
concrete,
along
congested
reinforcement,
heavy
number
cracks.
To
stop
damage
due
these
cracks,
self-healing
property
was
developed
self-compacting
by
incorporating
materials
like
bacteria
calcium
lactate
into
it.
optimise
materials,
including
reference
mix,
10
mixes
are
cast
tested
for
strength
healing
properties.
In
those
mixes,
both
used
0.2%,
0.4%,
0.5%,
0.6%,
0.8%,
1%,
1.2%
weight
cement.
The
compressive
strength,
UPV,
rebound
hammer
tests
done
on
cubes
100
mm
sides.
Split
tensile
cylinders
diameter
200
height.
When
small
used,
higher
compared
mix.
However,
increasing
resulted
decrease
concrete.
Maximum
relatively
good
were
found
0.5%
lactate.
FESEM-EDS
XRD
results
make
it
clear
that
precipitation
formed
form
rhombohedral
calcite.
Structural Concrete,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 22, 2025
Abstract
Self‐healing
concrete,
with
its
ability
to
autonomously
repair
damages,
holds
promise
in
enhancing
structural
durability
and
resilience.
Research
on
self‐healing
concrete
the
past
decade
has
advanced
understanding
mechanisms
behind
healing,
exploring
various
healing
agents,
assessing
their
effectiveness
structures.
However,
full
potential
of
remains
untapped
unless
effects
are
effectively
integrated
into
design
practices
reinforced
Realizing
this
challenge,
paper
synthesizes
current
research
progress
discusses
possibilities
consider
codes.
The
focus
was
placed
two
specific
benefits
applying
concrete:
one
centered
other
mechanical
performance.
Specifically,
effect
impeding
chloride
penetration
cracked
discussed
first.
Modifications
parameters
existing
predictive
models
based
different
types
approaches
were
recommended.
Furthermore,
possible
impact
capacity
mitigating
stiffness
reduction
also
discussed.
Equations
that
can
describe
regained
due
action
presented.
In
each
part
case
study,
limitations
challenges
still
hindering
standardization
wider
application
construction
field
