European Journal of Theoretical and Applied Sciences,
Journal Year:
2024,
Volume and Issue:
2(4), P. 414 - 429
Published: July 1, 2024
Concrete
is
a
fundamental
material
in
construction,
demanding
high
strength
and
workability
for
modern
engineering
structures.
However,
conventional
cement
production
contributes
significantly
to
CO2
emissions,
prompting
the
exploration
of
eco-friendly
alternatives.
Several
industrial
by-products,
such
as
fly
ash,
ground
granulated
blast
furnace
slag
(GGBS),
silica
fume,
metakaolin,
have
cementitious
qualities
can
be
used
binding
agents
concrete.
In
our
research,
we
aim
find
ways
substitute
these
particularly
ash
GGBS,
concrete
order
reduce
consumption.
Blast
furnaces
produce
fine
powder
that
subsequently
into
byproduct.
Fly
has
pozzolanic
qualities,
but
it
also
provides
materials
utilized
make
cement.
Industrial
by-products
like
(GGBS)
offer
promising
substitutes
traditional
This
study
investigates
incorporation
20%
30%
GGBS
concrete,
evaluating
its
mechanical
properties
over
7,
14,
28
days.
Results
show
green
exhibits
comparable
or
superior
compressive,
flexural,
split
tensile
strengths
with
lower
carbon
emissions
cost.
The
underscores
concrete's
potential
an
environmentally
sustainable
cost-effective
alternative
construction.
Journal of Marine Science and Engineering,
Journal Year:
2025,
Volume and Issue:
13(5), P. 891 - 891
Published: April 30, 2025
The
resource
utilization
of
marine-dredged
sediment
is
considered
a
sustainable
approach
to
its
disposal.
This
paper
investigates
the
preparation
non-sintered
ceramsites
from
sediments
and
CSA
cement
via
cold-bonded
pelletization.
study
examines
effects
various
conditions
on
engineering
properties,
phase
compositions
microstructures
ceramsites.
results
indicate
that
significantly
influence
particle
size
distribution
early-strength
development
prepared
remarkable,
with
PCS
achieving
approximately
60%
80%
28-day
strength
within
3
days
7
days,
respectively—a
marked
contrast
OPC.
Response
surface
methodology
analysis
reveals
significant
interaction
between
disc
rotation
angle,
rotational
speed,
duration
open-ended
porosity
exhibits
greater
sensitivity
changes
in
parameters
compared
closed-ended
total
porosity.
have
negligible
impact
hydration
process
For
both
ellipsoidal
plate-like
soil
particles,
ettringite
AH3
provide
effective
pore-filling
binding
These
findings
imply
low-carbon
through
offers
nature-based
solution
for
management
coastal
systems.
Sustainability,
Journal Year:
2024,
Volume and Issue:
16(15), P. 6634 - 6634
Published: Aug. 2, 2024
The
development
of
novel
materials
made
from
waste
is
one
the
main
measures
to
achieve
sustainable
development.
In
this
study,
ash
mushroom
and
corn
straw
(MCA)
furnace
slag
(FS)
were
used
as
raw
prepare
alkali-activated
biomass
ash-slag
material
(AABS)
ecological
non-sintered
ceramsite
(SENC).
paper,
effects
quicklime
powder
(QL),
NaOH,
sodium
silicate
solution
(SS)
on
AABS
analyzed
using
single
factor
orthogonal
tests,
preferred
ratio
composite
alkali
activator
configuration
was
established.
SENC
prepared
based
activator,
microstructure
phase
composition
explored
XRD
SEM–EDS.
results
showed
that
3wt%
QL
enhanced
early
age
compressive
strength
AABS.
best
configured
when
additions
QL,
SS
3%,
2%,
15%,
respectively.
At
configuration,
28
d
47.4
MPa,
most
internal
pores
less
than
0.4
μm;
28d
numerical
tube
pressure
reached
12.2
MPa
with
a
softening
coefficient
0.96.
According
SEM–EDS,
contained
various
hydration
products
such
C-A-S-H,
calcium
hemicarboaluminate,
hydrotalcite,
portlandite,
vaterite.
largest
proportion
which
contributed
pore
refinement
structural
densification.
has
potential
be
coarse
aggregate
in
lightweight
concrete.
