Juniper Online Journal Material Science,
Journal Year:
2023,
Volume and Issue:
7(5)
Published: April 4, 2023
This
research
focuses
on
finding
an
alternative
to
expensive
cement
in
the
construction
industry
Pakistan
by
utilizing
pozzolanic
materials,
specifically
volcanic
ash/bentonite
clay.By
replacing
a
portion
of
with
bentonite
(10%,
20%,
30%,
and
40%),
study
demonstrates
potential
reduce
net
consumption
cost
while
also
contributing
more
durable
concrete
reducing
energy
greenhouse
gas
emissions.Physical
properties
such
as
setting
time
fineness
were
studied,
compressive,
flexural,
split
tensile
strength
mixes
compared
at
7
28
days
curing.While
decreased
successive
addition
bentonite,
rate
reduction
was
much
lower
than
days.The
results
validate
feasibility
developing
low-cost
using
partial
replacement
for
cement.
Heliyon,
Journal Year:
2024,
Volume and Issue:
10(17), P. e37061 - e37061
Published: Aug. 28, 2024
This
paper
contributed
with
new
findings
to
understand
and
characterize
a
heavy
metal
adsorption
on
composite
adsorbent.
The
synthesized
polypyrrole-polyaniline@rice
husk
ash
(PPY-PANI@RHA)
was
prepared
used
as
an
adsorbent
for
the
removal
of
hexavalent
chromium
Cr(VI).
isotherms
Cr(VI)
ions
PPY-PANI@RHA
were
experimentally
determined
at
pH
2,
different
temperatures
(293,
303,
313
K).
Multi-layer
model
developed
using
statistical
physics
formalism
applied
theoretically
analyze
interactions
ion
exchanges
during
process
elimination
this
toxic
from
aqueous
solutions,
attribute
physicochemical
interpretation
adsorption.
structures
properties
characterized
via
Fourier
transform
infrared
spectroscopy
(FTIR).
Fitting
showed
that
mechanism
multi-ionic
mechanism,
where
one
binding
site
may
be
occupied
by
two
ions.
It
also
noticed
temperature
augmentation
generated
activation
more
functional
groups
adsorbent,
facilitating
sites
access
smaller
pore.
energetic
characterization
suggested
investigated
systems
exothermic
physisorbed
surface
electrostatic
interaction,
reduction
Cr(III),
hydrogen
bonding,
exchange.
Overall,
utilization
theory
provided
fruitful
profounder
analysis
mechanism.
estimation
pore
size
distribution
(PSD)
approach
considered
stereographic
(here
globally
meso-porous
adsorbent).
Lastly,
wastewater
macroscopically
three
thermodynamic
functions.
Juniper Online Journal Material Science,
Journal Year:
2023,
Volume and Issue:
7(5)
Published: April 4, 2023
This
research
focuses
on
finding
an
alternative
to
expensive
cement
in
the
construction
industry
Pakistan
by
utilizing
pozzolanic
materials,
specifically
volcanic
ash/bentonite
clay.By
replacing
a
portion
of
with
bentonite
(10%,
20%,
30%,
and
40%),
study
demonstrates
potential
reduce
net
consumption
cost
while
also
contributing
more
durable
concrete
reducing
energy
greenhouse
gas
emissions.Physical
properties
such
as
setting
time
fineness
were
studied,
compressive,
flexural,
split
tensile
strength
mixes
compared
at
7
28
days
curing.While
decreased
successive
addition
bentonite,
rate
reduction
was
much
lower
than
days.The
results
validate
feasibility
developing
low-cost
using
partial
replacement
for
cement.
