Sustainability,
Год журнала:
2023,
Номер
15(20), С. 14743 - 14743
Опубликована: Окт. 11, 2023
This
study
involves
partially
replacing
coarse
aggregate
with
marble
waste
products,
and
cement
fly
ash,
in
order
to
obtain
the
best
results.
aims
determine
how
use
of
these
products
affects
mechanical
properties
resulting
concrete,
which
could
have
valuable
implications
for
sustainable
construction
practices.
Different
samples
were
prepared
by
adding
slurry
powder,
a
combination
concrete.
The
modulus
elasticity
Poisson’s
ratio
calculated,
it
was
found
that
admixtures
had
lower
moduli
higher
values
than
did
conventional
concrete
mixture.
Based
on
elastic
constants
E
µ
general
modified
mixtures,
two
structures
are
modelled
each
mixture
simulated
using
ETABS
Ultimate
software
evaluate
compare
practical
applicability
mixtures.
Both
envisaged
buildings
considered
identical,
having
shear
walls
placed
symmetrically.
response
structure
analysed
applying
earthquake
load,
wind
respective
combinations
according
IS
codes.
storey
displacement
stiffness
under
lateral
load
determined.
results
showed
comparable
those
indicate
has
several
benefits,
including
improved
workability,
as
well
adequate
strength
durability,
resistance
deformation,
compared
Case Studies in Construction Materials,
Год журнала:
2023,
Номер
19, С. e02557 - e02557
Опубликована: Окт. 7, 2023
Focusing
on
sustainable
development,
the
demand
for
alternative
materials
in
concrete,
especially
Self-Compacting
Concrete
(SCC),
has
risen
due
to
excessive
cement
usage
and
resulting
CO2
emissions.
As
Compressive
Strength
(CS)
is
dominant
among
concrete
properties,
this
research
concentrates
developing
SCC
by
incorporating
Rice
Husk
Ash
(RHA)
Marble
Powder
(MP)
as
filler
replacements,
respectively,
while
applying
Machine
Learning
(ML)
Deep
(DL)
techniques
forecast
CS
of
RHA/MP-based
SCC.
The
further
evaluates
material
characteristics,
with
a
strong
emphasis
ML
DL
prediction.
samples
various
mixed
ratios
were
cast
examined
after
91
days
collect
data
model
application.
In
experimental
technique,
133
gathered,
was
predicted
using
seven
input
factors
(cement,
RHA,
MP,
superplasticizer,
coarse
aggregate,
fine
water)
an
80:20
ratio.
Various
algorithms,
including
linear
regression,
ridge
lasso
K-nearest
neighbors
(KNN),
support
vector
machine
(SVM),
decision
tree
(DT),
random
forest
(RF),
boosting
methods
such
gradient
boost
(GB),
XG
(XGB),
adaptive
(ADB)
are
employed,
along
technique
backpropagation
neural
network
(BPNN)
different
optimizer
algorithms
(Adam,
SGD,
RMSprop)
predict
validated
evaluation
parameters
R-squared
(R2),
mean
squared
error
(MSE),
normalized
root
(NRMSE),
absolute
(MAE),
percentage
(MAPE).
Comparatively,
ensemble
BPNN
Adam
RMSprop
optimizers
demonstrate
high
accuracy
predicting
outcomes,
indicated
their
coefficient
correlation
R2
values
low
values.
Buildings,
Год журнала:
2024,
Номер
14(1), С. 161 - 161
Опубликована: Янв. 9, 2024
In
addressing
the
dual
challenges
of
sustainable
waste
management
and
environmental
conservation
in
construction
industry,
particularly
disposal
tire
crumb
rubber
(CR)
demand
for
eco-friendly
building
materials,
this
study
explores
a
novel
solution.
It
examines
incorporation
mineral
additions—namely
silica
fume
(SF),
marble
slurry
powder
(MSP),
fly
ash
(FA)—as
partial
substitutes
natural
fine
aggregates
cement
concrete.
Through
comprehensive
testing
seventeen
concrete
samples,
reveals
that
specific
mix
R10S5M10F15
contained
10%
as
replacement
aggregates,
5%
fume,
15%
replacements
cement,
not
only
achieves
compressive
split
tensile
strength
comparable
to
control
mix,
while
90
days
flexural
was
improved
by
4.48%;
credited
SF’s
pozzolanic
action
filler
effects
MSP
FA,
but
also
inclusion
CR,
reducing
due
material
variations,
enhances
ductility
improves
resistance
sulfate
acid
attacks,
despite
increasing
water
absorption.
The
primary
goal
research
is
investigate
feasibility
effectiveness
using
materials
foster
more
practices.
objectives
include
detailed
assessment
mechanical
properties
durability
incorporating
these
aiming
determine
optimal
proportions
their
effective
utilization.
This
study’s
novelty
lies
its
analysis
synergistic
combining
SF,
MSP,
FA
concrete,
contributing
field
offering
alternative
approach
traditional
formulations
highlighting
delicate
balance
required
optimized
performance.
Innovative Infrastructure Solutions,
Год журнала:
2025,
Номер
10(2)
Опубликована: Фев. 1, 2025
Abstract
Interest
has
grown
in
recycled
cement
powder
waste’s
application
building
projects
as
a
workable,
long-term
solution
to
environmental
issues.
This
work
presents
experimental
results
investigating
the
behaviour
of
plain
and
fibre-reinforced
waste
paste
with
different
volume
fraction
percentages
micro
steel
fibres
(1%
2%),
where
densified
silica
partially
replaces
10%
cement.
For
each
mix,
superplasticiser
water-cement
ratios
were
maintained
constant.
The
study
involved
number
studies,
including
flow
table
inspections,
Field
emission
scanning
electron
microscopy
(FE-SEM)
tests,
energy
dispersive
X-ray
(SEM–EDX)
testing,
compressive
flexural
strength
assessments,
dry
density
measurements,
ultrasonic
tests.
These
evaluations
aimed
analyse
specimens’
mechanical
physical
characteristics
thoroughly.
showed
that
substituting
fume
(SF)
for
certain
amount
could
improve
cement’s
properties.
Using
2%
micro-steel
significantly
affected
paste’s
strengths.
Nevertheless,
an
investigation
revealed
inclusion
resulted
reduction
amplitude
sound
waves
decrease
stagnation
flow.
SEM–EDX
tests
satisfactory
adherence
between
SF.
clarifies
why
adding
SF
causes
increase.
Nondestructive Testing And Evaluation,
Год журнала:
2025,
Номер
unknown, С. 1 - 33
Опубликована: Март 25, 2025
Self-compacting
concrete
(SCC)
has
become
increasingly
popular
due
to
its
superior
workability,
segregation
resistance,
and
compressive
strength.
As
the
traditional
methods
for
strength
prediction
are
costly
time-intensive,
this
study
explores
machine
learning
(ML)
techniques
as
efficient
alternatives
SCC
prediction.
Three
state-of-the-art
hybrid
Adaptive
Neuro-Fuzzy
Inference
System
(ANFIS)
models,
optimised
using
Firefly
Algorithm
(FA),
Particle
Swarm
Optimization
(PSO)
Genetic
(GA).
For
purpose,
a
robust
dataset
of
366
instances
7
input
parameters
is
taken
from
literature.
After
data
analysis
pre-processing,
hyperparameters
models
tuned
best-fit
model
tested
on
unforeseen
data.
ANFIS-FF
stands
out
best-performing
(RTR2
=
0.945
RTS2
0.9395)
in
both
training
testing
phases,
closely
followed
by
ANFIS-GA.
All
outperform
ANFIS
model,
outlining
significance
hybridisation,
however,
ANFIS-PSO
lags
behind
other
two
models.
The
highlights
importance
integrating
with
metaheuristic
algorithms
tackling
complex
engineering
problems
like
design
optimal
mix
design,
minimising
material
waste
ensuring
cost-effectiveness.
It
serves
benchmark
future
research
comparing
hybridisation
starting
point
ANFIS.