Civil And Environmental Engineering Reports,
Journal Year:
2024,
Volume and Issue:
34(4), P. 462 - 482
Published: Dec. 1, 2024
Humans
are
consuming
vast
quantities
of
plastic
across
various
types,
leading
to
significant
challenges
in
decomposition
and
the
subsequent
generation
extensive
waste,
posing
a
threat
environment.
To
address
this
issue,
researchers
actively
exploring
methods
minimize
waste
mitigate
its
widespread
impact
by
incorporating
it
into
concrete.
This
not
only
enhances
concrete's
durability
but
also
reduces
costs.
paper
provides
an
overview
published
research
on
utilization
It
reviews
efforts
numerous
valorizing
concrete,
different
forms
such
as
partial
replacement
fine
coarse
aggregate,
well
fibers,
examines
their
effects
fresh,
mechanical,
properties
The
findings
indicate
promising
possibilities
for
recycling
However,
there
is
scope
investigate
combined
both
aggregate
fiber
potentially
enabling
recovery
additional
waste.
Furthermore,
study
emphasizes
importance
employing
scanning
electron
microscopy
(SEM)
analyze
changes
occurring
within
Results in Engineering,
Journal Year:
2023,
Volume and Issue:
20, P. 101629 - 101629
Published: Nov. 29, 2023
This
paper
assessed
the
effects
of
mainshock-aftershock
(MS-AS)
sequences
on
seismic
vulnerability
intermediate
reinforced
concrete
moment
frames
(IRCFs),
considering
various
mainshock
intensity
scenarios.
Moreover,
given
limited
library
real
MS-AS
ground
motion
in
Iran
plateau,
a
sequence-selection
method
is
proposed
to
generate
artificial
that
incorporate
magnitude,
seismotectonic
region,
fault
mechanism,
and
site
condition
target
area.
Three
4-,
7-,
10-story
IRCFs,
modeled
OpenSees
software,
are
subjected
as
well
collapse
fragility
curves
derived
using
incremental
dynamic
analysis
(IDA)
results.
The
results
show
occurrence
can
significantly
increase
buildings
during
aftershock.
For
scenarios,
general
decrease
capacity
observed
across
all
mainshock-damaged
buildings,
with
more
significant
for
taller
buildings.
Hence,
it
essential
consider
aftershock
design
IRCFs
mitigate
risk
collapse.
Furthermore,
by
comparing
responses
caused
those
sequences,
validity
confirmed;
thus,
be
used
substitute
sequences.
Regression
equations
also
presented
predict
reduction
different
story
numbers
presence
Industrial
waste,
including
glass
and
plastic,
has
become
widespread
in
recent
years,
harming
the
nature
environment
which
we
live.
Recycling
this
waste
concrete
appears
to
be
one
of
best
solutions
because
its
economic
environmental
benefits.
In
study,
performance
containing
plastic
form
fibers
as
a
partial
replacement
for
cement
was
investigated.
The
effects
both
wastes
on
workability
air
content
were
studied
fresh
mixes,
well
their
impact
chloride
penetration
carbonation
resistance
hardened
concrete.
effect
elevated
temperature
compressive
strength,
weight
loss,
ultrasonic
pulse
velocity
different
mixes
also
tested.
results
showed
that
combination
two
same
mixture
contributed
an
improvement
by
20.5%
long
term.
addition
powder
increases
depth
carbonation,
whereas
inclusion
reduces
carbonation.
