Research on Recycling and Utilization of Shredded Waste Mask Fibers to Prepare Sustainable Engineered Cementitious Composites
Buildings,
Год журнала:
2025,
Номер
15(3), С. 402 - 402
Опубликована: Янв. 27, 2025
The
widespread
disposal
of
single-use
masks
has
led
to
significant
environmental
concerns.
This
study
investigated
the
effects
incorporating
shredded
waste
mask
fibers
(SWMFs)
on
compressive
and
flexural
properties
concrete.
experimental
design
included
four
fiber
volume
fractions,
i.e.,
0%,
1%,
2%,
3%,
with
three
different
sizes
fibers.
influences
these
load-bearing
capacity,
deformation
behavior,
energy
absorption
concrete
under
compression
flexure
was
examined.
Scanning
electron
microscopy
(SEM)
used
analyze
microstructure.
results
show
that
addition
1%
SWMFs
enhances
mechanical
performance,
strengths
20.69
MPa
6.95
MPa,
respectively,
for
B-sized
Furthermore,
incorporation
discarded
improved
toughness
material.
In
general
strength
requirements,
a
B-dimensional
can
be
incorporated,
which
improve
bending
by
75%
control
group.
Язык: Английский
Testing of recycled fine aggregate concrete’s mechanical properties using recycled fine aggregate concrete and research on technology for highway construction
Nonlinear Engineering,
Год журнала:
2025,
Номер
14(1)
Опубликована: Янв. 1, 2025
Abstract
The
rapid
growth
of
transportation
engineering
has
led
to
significant
environmental
challenges
due
the
accumulation
building
waste
and
tailings.
A
promising
solution
is
utilize
these
materials
develop
high-performance
tailings
recycled
concrete
(RFAC)
for
highway
construction,
promoting
a
green
circular
economy.
This
study
advances
existing
research
by
exploring
innovative
mix
design
strategies
performance
optimization
techniques
enhance
RFAC’s
mechanical
properties
industrial
applicability.
Specifically,
this
investigates
effects
various
iron
admixtures
on
behavior
deformation
characteristics
RFAC
before
after
carbonation,
aiming
establish
an
optimal
composition
infrastructure.
used
include
tailings,
coarse
aggregate,
natural
river
sand,
42.5-grade
ordinary
silicate
cement.
Unlike
conventional
approaches,
emphasizes
influence
particle
morphology
surface
laboratory-produced
fine
revealing
its
angular
shape,
rough
texture,
larger
specific
area,
which
significantly
impact
fluidity,
bulk
density,
crushing
value.
Experimental
results
demonstrate
that
fiber
type
admixture
ratio
play
crucial
role
in
improving
slump,
compressive
strength,
split
tensile
failure
modes.
Compared
previous
studies,
provides
more
refined
analysis
proportioning
introduces
tailings-based
enhancements,
offering
new
insights
large-scale
applications
engineering.
By
optimizing
incorporation
aggregate
proportions,
establishes
systematic
approach
performance,
durability,
construction
adaptability,
laying
foundation
sustainable
infrastructure
development.
Язык: Английский
Flexural performance of reinforced concrete beams incorporating polypropylene fibres: an experimental investigation and finite element model
Innovative Infrastructure Solutions,
Год журнала:
2025,
Номер
10(5)
Опубликована: Апрель 28, 2025
Язык: Английский
Performance of Environmentally Friendly Concrete Containing Fly-Ash and Waste Face Mask Fibers
Sustainability,
Год журнала:
2024,
Номер
16(23), С. 10385 - 10385
Опубликована: Ноя. 27, 2024
This
work
was
carried
out
to
explore
the
potential
use
of
used
face
masks
in
concrete
develop
sustainable
green
concrete.
In
this
experimental
study,
were
cut
up,
removing
ear
stripes
and
internal
nose
steel
wire,
prepare
elongated
fibers.
These
fibers
incorporated
cement
fly
ash
mixtures
as
an
additive
determine
response
M20-grade
The
Class
F
(FA)
employed
a
fractional
substitute
up
25%
by
weight,
whereas
addition
occurred
at
0%,
0.125%,
0.25%
volume
testing
scheme
focused
on
mechanical
durability
characteristics
FA
after
3,
28,
60
days
curing.
inclusion
mask
reduced
density
specimens.
compressive,
splitting
tensile,
flexural
strengths
mixes
also
early
age;
however,
strength
improved
later
ages,
compared
control
mix.
combination
both
materials
resulted
lower
water
absorption,
bulk
sorption,
mass
loss
values
against
acid
attack
ages.
Similarly,
electrical
resistance
substantially
enhanced
increasing
percentage
materials.
results
demonstrated
that
processed
can
be
utilized
without
significantly
compromising
resultant
characteristics.
Язык: Английский