Materials,
Journal Year:
2024,
Volume and Issue:
17(23), P. 5804 - 5804
Published: Nov. 27, 2024
To
study
the
dynamic
compressive
mechanical
properties
of
concrete
with
different
aggregates
(limonite
and
lead-zinc
ore),
a
experiment
was
carried
out
by
Φ
100
mm
SHPB
equipment.
Based
on
coupling
finite
difference
method
(FDM)
discrete
element
(DEM),
three-dimensional
numerical
model
constructed.
The
effects
various
strain
rates
aggregate
types
concrete,
increase
factor
(DIF),
impact
damage
process
were
analyzed
discussed.
results
show
that
both
have
significant
rate
strengthening
effect.
strength,
peak
strain,
DIF
two
gradually
increasing
rate.
strength
growth
ore
greater
than
limonite
sensitivity
stronger
concrete.
constructed
can
better
simulate
experimental
process,
stress-strain
curves
patterns
good
agreement
results.
relative
errors
between
calibration
microscopic
parameters
values
are
all
within
1%.
Deleted Journal,
Journal Year:
2025,
Volume and Issue:
20(1)
Published: Feb. 21, 2025
Abstract
Concrete
is
the
most
tremendous
and
widespread
building
material
in
world.
Building
materials
have
become
expensive
scarce.
There
a
need
for
substitute
made
from
industrial
waste
this
desolate
area.
In
concrete,
ensuring
expedient
utilization
of
recycled
aggregate
(RA)
demolished
structures
can
aid
preservation
natural
surroundings,
environment,
dumping
space.
The
eliminated
with
RA
by
(25,
50,
75,
100%)
volumes
were
carried
out
7,
14,
28
days.
Due
to
drying
shrinkage,
fresh
concrete
develops
structural
fissures,
resulting
failure.
Adding
micro
steel
fiber
one
efficient
strategies
improving
concrete’s
characteristics
like
tensile
strength,
compressive
flexural
strength.
addition
this,
comparison
between
conventional
furthermore
contains
enhancing
enforcement
that
leads
unreeling
concrete.
outcomes
onto
are
assessed,
conflicts
among
attributes
addressed
discussed
detail.
