Enhanced early strength and microstructural stability of dredged sludge using CPCS curing agent
Construction and Building Materials,
Год журнала:
2025,
Номер
466, С. 140219 - 140219
Опубликована: Фев. 5, 2025
Язык: Английский
Optimization of Technical Parameters for the Vacuum Preloading-Flocculation-Solidification Combined Method for Sustainable Sludge Utilization
Sustainability,
Год журнала:
2025,
Номер
17(6), С. 2710 - 2710
Опубликована: Март 19, 2025
High-water
content
dredged
sludge
from
waterways,
with
potential
for
sustainable
use
as
high-performance
fillers,
was
effectively
treated
using
the
vacuum
preloading-flocculation-solidification
combined
method
(denoted
VP-FSCM).
This
study
investigated
effect
of
flocculant
and
curing
agent
dosages
on
solidification
initially
poor
mechanical
properties.
Ground
granulated
blast-furnace
slag
(GGBS)
ordinary
Portland
cement
(OPC)
were
selected
composite
agents,
while
anionic
polyacrylamide
(APAM)
slaked
lime
used
a
mixed
flocculant.
Laboratory
experiments
conducted
to
examine
effects
different
agents
flocculants
deposition
dehydration,
strength
characteristics,
water
after
curing,
well
spatial
distribution
them
under
method.
Additionally,
conventional
solidified
by
GGBS
OPC
GCSM)
also
compared.
The
results
indicate
that
increasing
dosage
4.5%
10.5%
enhances
shear
samples
VP-FSCM
up
3–5
times
compared
those
GCSM.
optimal
ratio
is
GGBS/OPC
=
1,
optimum
composed
APAM
at
0.125%
1.5%.
When
admixture
optimal,
it
allows
better
utilization
advantages
coupling
such
flocculation
preloading,
chemical
thereby
significantly
improving
properties
sludge.
Язык: Английский
Improvements in vacuum preloading for different soils and their clogging mechanisms: A review
Marine Georesources and Geotechnology,
Год журнала:
2025,
Номер
unknown, С. 1 - 18
Опубликована: Май 14, 2025
Язык: Английский
Evolutionary Behaviors of Straw-Reinforced Slurry for Sustainable Management of Dredging Sediment: Rheological and Fertility Properties
Waste and Biomass Valorization,
Год журнала:
2024,
Номер
16(3), С. 1057 - 1071
Опубликована: Окт. 30, 2024
Язык: Английский
Shrinkage and Cracking Characteristics of Dredged Sludge Containing Straw Fiber Under Different Initial Water Contents
Buildings,
Год журнала:
2024,
Номер
15(1), С. 97 - 97
Опубликована: Дек. 30, 2024
Dredged
sludge
usually
has
high
water
content
and
poor
engineering
properties,
which
would
be
unfavorable
for
its
rapid
resource
utilization.
Meanwhile,
straw
fiber
is
an
environmentally
friendly
material
improving
the
mechanical
behavior
of
soil.
In
this
research,
a
series
shrinkage
tests
were
conducted
to
investigate
effects
on
dredged
with
content.
Four
initial
contents
amounts
designed.
The
crack
development
recorded
throughout
test.
According
test
results,
reduction
in
regarding
drying
time
can
divided
into
three
stages:
constant-rate
stage,
falling-rate
residual
stage.
At
evaporation
affected
significantly
by
fiber.
Compared
sample
without
fiber,
influence
depends
upon
shows
overall
inhibitory
effect
initiation
cracks
tested
samples.
Moreover,
Язык: Английский