Advances in Civil Engineering,
Journal Year:
2024,
Volume and Issue:
2024(1)
Published: Jan. 1, 2024
This
study
aims
to
investigate
the
capacity
of
bagasse
ash
(BA)
incorporating
limestone
calcined
clay
cement
(LC
3
)
for
stabilisation
black
cotton
soil
(BCS)
in
Shire
Valley,
Malawi,
terms
shearing
and
durability
properties.
First,
BA
LC
were
developed,
their
physiochemical
properties
investigated.
Specimens
created
mix
ratio
2:1,
respectively.
specimens
blended
into
BCS
at
proportions
0%
12%.
The
mixtures
subjected
3,
7,
15
30
curing
days,
10°C
32°C
temperatures,
under
confining
pressures
150,
300
450
kPa
direct
shear
test.
Effect
simulated
whether
condition
wetting–drying
cycles
(WDCs)
on
behaviour
treated
was
investigated
through
results
showed
that
strength
12%
increased
above
70%
average,
with
higher
values
pressure,
cured
lower
than
32°C.
Durability
test
illustrated
4%
collapsed
upon
immersing
water.
8%
reduced
against
WDC.
10%
displayed
an
increasing
trend
WDC,
indicating
both
short‐
long‐term
hydration
reaction.
shows
feasibility
relevant
geotechnical
construction
tropical
climatic
regions,
further
promotes
reuse
by‐products
wastes
as
cementitious
materials
practice.
Structural Concrete,
Journal Year:
2024,
Volume and Issue:
unknown
Published: June 29, 2024
Abstract
This
study
investigates
the
individual
and
combined
effects
of
micro
nano
lead
monoxide
(PbO)
granodiorite
(GD)
on
concrete's
mechanical
radiation
shielding
properties.
Both
materials
were
partially
substituted
for
cement
at
varying
ratios.
Additionally,
mixtures
with
optimal
performance
prepared
to
explore
synergy
combining
them.
The
mentioned
are
used
first
time
in
an
extensive
scale
investigate
their
impact
properties,
microstructure,
gamma
attenuation.
Two
ray
sources
uranium
(U
238
)
cesium
(Cs
137
measure
attenuation
coefficients
all
designed
concrete
mixes.
A
simple
methodology
was
followed
assess
shields
efficiency
via
utilizing
portable
handheld
gamma‐ray
spectrometer
that
offers
two
reading
modes.
Results
indicated
increasing
ratio
PbO
is
directly
proportional
ability
attenuate
radiation,
where
replacement
ratios
recorded
5%
particle
sizes.
At
this
ratio,
linear
coefficient
(
μ
values
improved
by
39.57%
24.78%
PbO,
respectively.
improving
properties
3%
2%
while
higher
showed
a
decline
especially
7.02%
reduction
compressive
strength
value.
Regarding
GD
powder,
consistent
those
enhancing
its
4%
7%
both
scales,
mixes
further
enhanced
overall
performance,
ability.
Compared
control
mix,
strength,
tensile
increased
25.7%,
16.2%,
44.7%
mixture
+
GD.
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.
