Materials,
Год журнала:
2024,
Номер
17(10), С. 2416 - 2416
Опубликована: Май 17, 2024
This
study
explores
the
application
effect
of
new
non-isocyanate
polyurethane
curing
agent
on
rapid
mechanism
and
bearing
characteristics
piles
in
beach
foundations.
Through
laboratory
tests
field
tests,
effects
physical
mechanical
properties
sand
were
systematically
analyzed,
including
compressive
strength,
shear
elastic
modulus,
water
content
cement–sand
mass
ratio
after
investigated.
The
results
show
that
introducing
a
significantly
improves
sand,
cohesion
internal
friction
angle
increase
exponentially
with
ratio.
In
addition,
leads
to
decrease
strength
solidified
microstructure
analysis
reveals
change
bonding
between
gel
particles.
static
load
single
pile
groups
verify
effectiveness
solidification
foundations
reveal
significant
influence
length
diameter
capacity.
provides
theoretical
basis
technical
support
for
reinforcement
tidal
flat
important
guidance
related
engineering
applications.
Materials,
Год журнала:
2025,
Номер
18(4), С. 873 - 873
Опубликована: Фев. 17, 2025
Soil
reinforcement
using
rice
husk
ash
and
cement
is
emerging
as
an
effective
method
for
enhancing
geotechnical
performance
in
subgrade
layers,
offering
environmentally
friendly,
stable,
durable,
cost-efficient
solution.
This
study
investigates
sustainable
soil
by
maximizing
applying
RHA
layers.
Experimental
evaluations
were
conducted
California
Bearing
Ratio
tests,
Scanning
Electron
Microscopy,
Energy-Dispersive
X-ray
Spectroscopy.
The
research
focused
on
three
configurations:
upper,
lower,
double
each
treated
with
varying
proportions
of
(2%,
4%,
6%)
6%).
findings
demonstrated
significant
improvements
bearing
capacity
across
all
layers
combinations
compared
to
untreated
control
specimens.
Notably,
the
layer
6%
+
achieved
highest
CBR
value
21.30
KPa,
followed
configuration
2%
cement,
which
recorded
a
19.62
KPa.
specimen
containing
4%
18.62
These
results
highlight
effectiveness
material
enhancement
applications.
Heliyon,
Год журнала:
2025,
Номер
11(1), С. e41738 - e41738
Опубликована: Янв. 1, 2025
Geopolymerization
is
a
soil
improvement
technique
widely
used
for
waste
management
in
recent
years.
This
study
explores
the
potential
of
geopolymerization
roadbed
using
materials.
Recycled
glass
powder
(RGP)
and
calcium
carbide
residue
(CCR)
were
investigated
as
precursors
alkaline
activators,
respectively,
to
enhance
properties
silty
sand
soil.
X-ray
Fluorescence
(XRF)
analysis
confirmed
presence
silicon
dioxide
RGP
oxide
CCR.
The
California
Bearing
Ratio
(CBR)
test
evaluated
effectiveness
treatments
with
varying
CCR
contents
(2-5%)
compared
traditional
methods
(2.5%lime/2.5%cement
+
RGP).
influence
RGP/CCR
content,
soaking
conditions,
curing
time
on
stabilised
was
assessed.
geopolymer
derived
from
significantly
improved
load-bearing
capacity
untreated
(unsoaked
CBR:
85.5
%
vs.
45.0
at
28
days).
Notably,
soaked
CBR
increased
fourfold
after
days
optimal
content
(28.7
7.5
%).
Statistical
that
stabiliser
sample
conditions
impacted
strength
development.
These
findings
demonstrate
cement
sustainable
strengthening
alternative
treatment,
promoting
utilisation
infrastructure
Scientific Reports,
Год журнала:
2025,
Номер
15(1)
Опубликована: Март 15, 2025
To
enhance
the
compressive
strength
and
toughness
of
geopolymer-stabilized
aeolian
sand
subgrade
materials,
to
promote
utilization
resources,
polypropylene
fibers
are
incorporated
into
geopolymer
solidified
materials.
Unconfined
tests
conducted
on
specimens
prepared
under
different
mixing
schemes.
The
formation
mechanism
fiber
toughening
crack
resistance
revealed
at
microscopic
level
using
SEM
(Scanning
Electron
Microscopy)
technology.
finite
element
numerical
simulation
software
FLAC3D
6.0
is
used
establish
a
model
highway,
analyzing
dynamic
response
maximum
displacement
materials
various
vehicle
speeds
in
conditions
optimal
length
amount
fiber.
Research
results
show
that
when
NaOH
content
1.5%,
0.5%,
12
mm,
it
constitutes
mix
ratio
for
specimen,
with
peak
UCS
(Unconfined
Compressive
Strength)
residual
reaching
their
values.
Slag
fly
ash
form
three-dimensional
topological
network
structure
action
alkaline
solution,
which
promotes
bonding
between
particles
matrix.
within
matrix
effectively
inhibits
dislocation
suppresses
development
expansion
cracks,
playing
key
role
enhancing
specimen.
Using
software,
was
found
road
subbase
material
fiber-reinforced
stabilized
material,
impact
area
significantly
smaller
than
sand.
research
provide
reference
practical
application
engineering.
