Materials,
Journal Year:
2024,
Volume and Issue:
17(22), P. 5447 - 5447
Published: Nov. 7, 2024
In
this
work,
a
kinetic
study
and
modeling
of
the
decomposition
rock
sample
in
an
ascorbic
acid
medium
with
high
content
lepidolite
phase
were
carried
out,
results
which
are
great
importance
due
to
sample’s
lithium
(Li)
content.
The
was
characterized
by
X-ray
diffraction
(XRD),
inductively
coupled
plasma
atomic
emission
spectroscopy
(ICP-AES)
photoelectron
(XPS),
mineral
species
detected
lepidolite,
at
65.3%,
quartz,
30.6%,
muscovite,
4.1%,
quantitative
chemical
analysis
indicating
presence
elements
such
as
Li,
Si,
K,
Na,
O,
Al
and,
lesser
extent,
Fe
Ti;
highlights
that
Li
present
3.38%.
Lithium
element
kinetics
performed,
resulting
curves
comprising
induction
period,
progressive
conversion
stabilization;
highlighted
reaction
progressed
during
first
two
periods,
obtaining
order
(n)
0.4307
for
period
activation
energy
(Ea)
48.58
kJ
mol−1,
followed
n
=
0.309
Ea
25.161
mol−1.
This
suggested
mixed
control
regime
lower
temperature
ranges,
transition
from
transport
temperatures,
nature
concentration
effect
showing
predominates.
parameters
expressions
both
periods
obtained,
calculated
experimental
data
do
not
major
discrepancy.
Developments in the Built Environment,
Journal Year:
2024,
Volume and Issue:
19, P. 100495 - 100495
Published: July 1, 2024
The
cemented
lithium
feldspar
tailings
backfill
(CLFTB)
samples
with
different
fiber
types
and
contents
were
prepared
subjected
to
uniaxial
compression
tests.
results
show
that
glass
had
the
best
improvement
effect
on
UCS.
With
increase
in
content,
UCS
showed
a
trend
of
first
increasing
then
decreasing,
from
1.138
MPa
2.017
decreasing
1.907
MPa,
optimal
content
being
0.6%.
relationship
between
strength
gain
percentage
(SGP)
peak
strain
coefficient
γ
was
analyzed.
As
increased,
SGP
increased
decreased
while
gradually
increased.
Fibers
enhanced
ductility,
load-bearing
capacity,
dissipative
energy
required
for
failure
CLFTB.
Furthermore,
showing
greatly
crack
resistance
FRCLFTB,
evidenced
by
an
number
fine
cracks
decrease
fragment
detachment.
Applied Sciences,
Journal Year:
2025,
Volume and Issue:
15(9), P. 5105 - 5105
Published: May 4, 2025
The
environmental
hazards
caused
by
the
massive
generation
and
improper
disposal
of
industrial
solid
wastes
(e.g.,
high
calcium
desulphurization
ash,
HCDA)
growing
safety
risks
posed
increasing
number
underground
mine
goafs
generated
mining
activities
have
become
serious
geotechnical
challenges.
To
address
dual
issues,
this
study
develops
a
novel
desulfurization
ash–slag-based
paste
backfill
(DSPB)
material
using
HCDA
granulated
blast
furnace
slag
(GBFS)
as
primary
constituents.
effects
cementitious
ratios,
polycarboxylate
superplasticizer
(PCE),
sodium
silicate
(SS)
on
rheological
properties
DSPB
were
investigated
through
shear
rheology
experiment
fitting
model
to
assess
flow
conditions
in
pipeline
transportation.
In
addition,
mechanism
was
microanalysis.
results
showed
that
with
decrease
ash-to-slag
ratio,
initial
yield
stress
plastic
viscosity
decreased
up
88%
34.9%,
respectively;
PCE
via
“card
house”
structural
made
parameters
increase
then
decrease,
dosage
more
than
1.2%
significantly
improved
properties;
SS
initially
reduced
parameters,
but
excessive
doping
(greater
1.0%)
led
an
increase.
These
findings
establish
relationship
between
composition
properties,
provide
practical
solution
for
waste
resource
utilization
surface
stabilization,
scientific
basis
microstructure–rheology
systems.
Materials,
Journal Year:
2025,
Volume and Issue:
18(8), P. 1788 - 1788
Published: April 14, 2025
With
the
increasing
demand
for
lithium
resources
and
enhancement
of
global
environmental
awareness,
how
to
efficiently
environmentally
develop
clay-type
is
great
strategic
significance
future
development.
Clay-type
slag
(LS)
a
byproduct
resulting
from
extraction
ores.
Its
primary
chemical
constituents
include
SiO2
Al2O3,
it
exhibits
potential
pozzolanic
properties.
ore
low
grade,
so
large
amount
LS
produced
during
its
production.
In
this
study,
calcined
LS,
limestone
powder
(LP),
cement
clinker
were
used
as
main
raw
materials
prepare
low-carbon
LC3
cementitious
materials.
The
study
focused
on
effect
LP
new
mixing
properties,
mechanical
hydration
kinetics,
microstructure
formation
transformation
findings
revealed
that
incorporating
significantly
raised
standard
consistency
water
reduced
setting
time
binding
material.
While
initially
weakened
performance
mortar,
enhanced
these
properties
in
later
stages.
compressive
strength
LC-10
LC-20
at
180
days
exceeded
reference
by
3.7%
1.1%,
respectively.
addition,
number
micropores
between
3
20
nm
increased
significantly.
It
showed
addition
could
optimize
pore
structure
some
extent.
According
research,
optimal
content
should
not
exceed
30%.
This
method
only
consumes
solid
waste
but
also
facilitates
green
industry.
Toxics,
Journal Year:
2024,
Volume and Issue:
12(12), P. 872 - 872
Published: Nov. 29, 2024
Heavy
metal
contamination
is
a
critical
factor
contributing
to
soil
degradation
and
poses
significant
environmental
threats
with
profound
implications
for
ecosystems
human
health.
Soil
amendments
have
become
an
effective
strategy
address
these
challenges
by
reducing
heavy
hazards
remediating
contaminated
soils.
This
review
offers
comprehensive
analysis
of
recent
advancements
in
metal-contaminated
soils,
focus
on
natural,
synthetic,
natural-synthetic
copolymer,
biological
amendments.
By
thoroughly
examining
contrasting
their
remediation
mechanisms
effects,
this
study
provides
detailed
evaluation
influence
physicochemical
properties,
leachable
content,
microbial
communities.
Through
bibliometric
analysis,
current
research
priorities
trends
are
highlighted,
offering
multidimensional
comparison
clarifying
varying
applicability
limitations.
Furthermore,
explores
future
prospects
the
inherent
contamination,
aiming
offer
valuable
insights
theoretical
references
development
selection
novel,
efficient,
multifunctional,
environmentally
friendly
