Buildings,
Journal Year:
2024,
Volume and Issue:
14(11), P. 3474 - 3474
Published: Oct. 30, 2024
Rubberized
concrete
exhibits
enhanced
toughness
and
sustainability
but
suffers
from
reduced
mechanical
strength,
limiting
its
applications.
This
study
the
compressive
strength
of
rubberized
using
hybrid
steel/glass
fibers.
The
results
showed
a
positive
synergy
between
fibers,
with
improvements
in
elastic
modulus,
Poisson’s
ratio,
peak
strain,
by
16.1%,
19.4%,
32.0%,
63.4%,
101.7%,
respectively,
at
fiber
content
0.8%
(steel
0.6%
glass
0.2%).
A
well-fitting
stress–strain
model
was
adopted
for
future
constitutive
simulations.
advances
understanding
fibers
under
axial
compression
promotes
application
structural
engineering.
Buildings,
Journal Year:
2024,
Volume and Issue:
14(4), P. 1121 - 1121
Published: April 17, 2024
The
combined
application
of
steel–FRP
composite
bars
(SFCBs)
and
seawater
sea-sand
concrete
(SSSC)
in
marine
engineering
not
only
solves
the
problem
resource
scarcity
reduces
construction
cost
but
also
avoids
problems
chloride
corrosion
steel
reinforcement
lack
ductility
FRP
bars.
At
same
time,
addition
glass
fiber
(GF)
expansion
agent
(EA)
appropriate
amounts
improves
crack
resistance
seepage
concrete.
However,
durability
SFCB
with
GF-
EA-reinforced
SSSC
freezing–thawing
environment
remains
unclear,
which
limits
its
potential
cryogenic
engineering.
This
study
investigates
bonding
properties
between
GF-EA-SSSC
interfaces
using
eccentric
pullout
experiments
under
different
thicknesses
protective
cover
a
number
cycles.
results
showed
that
compressive
strength
dynamic
elastic
modulus
decrease,
while
mass
loss
increases
an
increasing
Additionally,
bond
stiffness
leading
to
increase
relative
slip.
rate
decreases
thickness
cover.
Furthermore,
formulas
for
strength,
slip,
are
established
quantify
effects
experimental
values
obtained
verify
accuracy
these
formulas,
error
less
than
5%.
Moreover,
stress–slip
constitutive
model
is
developed
GF-EA-SSSC,
fitting
closely
resemble
values,
demonstrating
high
level
fit.
