Applied Sciences,
Journal Year:
2023,
Volume and Issue:
13(14), P. 8134 - 8134
Published: July 12, 2023
This
study
investigated
the
engineering
properties
of
a
rubber–bentonite
mixture
under
different
salt
solution
concentrations,
mass
ratios,
and
consolidation
pressures.
In
addition,
effects
solute
ion
concentrations
on
compression
index
samples
were
compared.
The
results
showed
that
coefficient
could
be
reduced
effectively
by
increasing
weight
percentage
rubber
without
being
affected
solution.
However,
with
increase
in
concentration,
mixed
materials
ratios
increased,
when
concentration
exceeded
0.5
mol/L,
increased
more
obviously.
0.1
mol/L
NaCl
solution,
addition
levels
modulus
material
reduce
ratio
material.
an
environment
low
adding
into
enhance
its
compressive
deformation
resistance.
content
50%,
significant
pores
appeared
sample,
effect
high
intensified.
also
had
swelling
soil,
degradation
mechanical
properties.
emphasizes
need
to
consider
stability
resistance
saline–alkali
areas
erosion.
Bulletin of Earthquake Engineering,
Journal Year:
2023,
Volume and Issue:
21(8), P. 4037 - 4063
Published: March 18, 2023
Abstract
Soil
liquefaction
is
a
phenomenon
associated
with
strong
earthquakes
and
it
can
affect
large
areas.
High-rise
low-rise
buildings,
residential
structures
typically
of
1–2
storeys,
may
be
equally
prone
to
the
destructive
consequences
liquefaction.
For
case
high-rise
expensive
solutions
like
well-designed
piles
ground
improvement
used.
However,
in
smaller
structures,
this
not
economically
viable.
To
purpose,
current
research
explores
effectiveness
novel
proposed
low-cost
protection
technique,
where
soil
underneath
foundation
replaced
by
sand-tire
chip
mixture
base
reaching
down
certain
depth.
Series
triaxial
shaking
table
tests
were
performed
for
range
parametric
scenarios
to,
mainly
mechanistically,
assess
such
mitigation
since
similar
previous
studies
are
extremely
limited.
The
have
shown
that
closest
considered
surface,
thicker
higher
tire
ratio,
more
effective
become
on
controlling
pore
pressure
rise
leads
Applied Sciences,
Journal Year:
2025,
Volume and Issue:
15(4), P. 2133 - 2133
Published: Feb. 18, 2025
In
geotechnical
earthquake
engineering,
enhancing
the
seismic
properties
of
foundation
soil
to
modify
characteristics
waves
transmitted
structures
presents
a
viable
solution.
This
study
investigates
effect
placing
an
isolation
layer,
composed
mixture
recycled
tire
rubber
and
sand,
beneath
mitigate
forces
acting
on
buildings
situated
layers
with
high
amplification
potential.
other
words,
role
layer
functioning
as
isolator
is
examined.
To
achieve
this
objective,
behavior
building-type
analyzed
through
numerical
simulations,
supplemented
by
laboratory
experiments
available
in
literature.
The
analyses
are
performed
frequency
domain
using
finite
element
method
within
one-dimensional
(1D)
framework.
validate
feasibility
proposed
based
parametric
analysis
results,
comparisons
made
tests
available.
literature,
applications
thicknesses
ranging
from
1
3
m
resulted
reductions
6.8%
16.17%
response
spectral
accelerations
measured
at
surface,
while
improvements
Fourier
amplitude
ratios
ranged
between
12.03%
13.98%.
approach
aims
provide
economical
efficient
solution
for
earthquake-resistant
simultaneously
promoting
sustainability
recycling
waste
tires,
contributing
both
environmental
conservation
economic
benefits.
Geosynthetics International,
Journal Year:
2025,
Volume and Issue:
unknown, P. 1 - 16
Published: April 12, 2025
The
rubber
sand
mixture
(RSM)
is
an
effective
seismic
isolation
material,
and
understanding
its
layered
structure
essential
for
optimizing
performance
in
geotechnical
earthquake
engineering.
This
study
investigates
the
dynamic
characteristics
of
multi-layered
RSM
composites,
identifying
optimal
content
(RC)
initial
parameters
their
use
as
buffers.
To
this
end,
a
series
resonant
column
tests
were
conducted
to
compare
differences
between
rubber-sand
(LR-S)
conventional
by
measuring
shear
modulus
damping
ratio
at
small
strain
amplitudes.
experiments
on
LR-S
involved
constructing
configurations
with
three-,
five-,
seven-layer
structures,
while
varying
RC
confining
pressure
assess
influence
composite’s
behavior.
Results
show
that
reduced
6–13
times
compared
RSM.
Additionally,
decreases
increasing
RC,
contrasting
As
rises,
ratios
pure
decrease,
whereas
increases,
akin
rubber.
demonstrates
continuous
upward
trend
strain.
These
findings
are
pivotal
designing
mitigation
underground
systems.
Geosynthetics International,
Journal Year:
2025,
Volume and Issue:
unknown, P. 1 - 21
Published: April 18, 2025
Rubber-sand
mixture
(RSM)
has
proven
to
be
a
cost-effective
fill
material,
serving
as
seismic
isolation
cushion
between
natural
site
soil
and
structure
foundations.
Although
the
effect
improves
with
increased
thickness,
stability
of
superstructure
tends
decrease
while
costs
rise
greater
thickness.
Hence,
it
is
crucial
minimize
thickness
attaining
optimal
objective.
This
study
experimentally
assesses
performance
thinner
RSM
cushions
reinforced
by
geosynthetics,
specifically
geocells,
geotextiles,
geogrids.
The
effects
mass,
excitation
mode
on
coefficient
geosynthetic-reinforced
rubber-sand
(GRRSMC)
are
thoroughly
evaluated.
results
indicate
that
exceeds
unreinforced
ones
same
Among
different
reinforcements,
geotextile
provides
highest
efficiency,
followed
geocell
geogrid.
GRRSMC
primarily
attributed
low
shear
modulus.
Additionally,
geosynthetic
reinforcement
enhances
vertical
modulus,
which
helps
attenuate
waves.
These
findings
validate
viable
low-cost
approach,
ensuring
stability,
reducing
