Buildings,
Journal Year:
2024,
Volume and Issue:
15(1), P. 38 - 38
Published: Dec. 26, 2024
Using
silty
clay
as
roadbed
filling
can
lead
to
diseases.
In
this
paper,
was
modified
with
lignin
and
BFS
(GGBS).
Then,
the
mechanical
properties,
freeze-thaw
characteristics,
microscopic
mechanisms
were
investigated
using
unconfined
compression
tests,
California
bearing
ratio
rebound
modulus
cycling
scanning
electron
microscopy
(SEM),
X-ray
diffraction
(XRD).
The
results
showed
that
curing
age
increased,
compressive
strength
(UCS)
of
gradually
relationship
between
stress
axial
strain
samples
transitioned
from
strain-softening
strain-hardening.
As
content
decreased
UCS,
(CBR),
first
increased
then
tended
stabilize.
Adding
effectively
resist
volume
increase
mass
loss
during
cycles.
When
4%:8%,
growth
rate
CBR,
largest,
change
in
UCS
under
cycle
smallest,
improvement
effect
most
significant.
experimental
indicated
a
large
amount
hydrated
calcium
silicate
products
interunit
connections,
filled
soil
pores,
reduced
pore
number
size.
research
further
improve
applicability
engineering,
protect
environment,
reduce
waste
resources.
Environmental Technology & Innovation,
Journal Year:
2024,
Volume and Issue:
35, P. 103721 - 103721
Published: June 22, 2024
This
study
develops
and
evaluates
a
highly
effective
geopolymer
sorbent
specifically
designed
for
the
removal
of
heavy
metals
from
wastewater.
Single
binary
blends
fly
ash
slag
were
utilized
as
binding
material.
The
composite
was
activated
using
either
sodium
hy
solely
or
in
combination
with
silicate.
Taguchi
method
employed
to
design
mixes,
having
four
factors,
each
levels
variation.
These
factors
included
ash-to-slag
ratio
(FA),
binder
content
(BC),
molarity
hydroxide
solution
(M),
silicate-to-sodium
(SS/SH).
performance
rigorously
assessed
against
comprehensive
set
criteria,
including
metal
sorption
capacity,
setting
time,
flowability,
density,
compressive
strength,
abrasion
resistance,
water
absorption,
permeable
voids,
sorptivity,
carbon
footprint,
cost.
TOPSIS
methodology
applied
aggregate
response
criteria
determine
optimal
mix
superior
performance.
results
showed
that
optimum
consisted
an
FA
33
%,
BC
1050
kg/m3,
M
10,
SS/SH
3.
A
sensitivity
analysis
confirmed
changes
weighting
did
not
significantly
impact
proportioning
mix.
Furthermore,
variance
(ANOVA)
revealed
contributed
most
sorbent's
performance,
followed
by
SS/SH,
BC,
M.
development
this
only
addresses
critical
environmental
concern
but
also
offers
great
potential
practical
applications
industries
municipalities
worldwide.
