Investigation on Potential Use of Ferro Cement Jacketing for Strengthening of Reinforced Concrete Column and Construction Methodology
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Date
2019-10
Authors
Journal Title
Journal ISSN
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Publisher
Addis Ababa University
Abstract
Strengthening of the existing structures has become a large part of the construction
industry. Columns are the firmest structural element in any structure that transfers the
entire loads to the foundations. In general, the strengthening of deficient columns is
necessary to increase the load-carrying capacity and ductility that can be achieved by
external confinement of columns. External confinement can be done by using different
materials such as ferro cement, fiber-reinforced polymers, and steel jacketing.
This thesis presents the results of an experimental and numerical study on the capacity
of
the
strengthened
reinforced
column
by
ferro
cement.
Five
group
tests
were
conducted,
and
all
sample
specimen
tests
were
under
static
load.
The
test
had
three
reinforced
concrete
columns,
three
cement
mortar wrapping reinforced concrete columns,
three
single
layer
ferro
cement
strengthened
reinforced
concrete
columns,
three
double
layers
ferro
cement
strengthened
reinforced
concrete
columns,
and
three
triple
layers
ferro
cement
strengthened
reinforced
concrete
columns.
All
samples
tested
by
applying an
axial
load.
The experimental data used for validation of the finite element models were developed
using the abaqus software package. The validated models used as part of the study
was to investigate the effects of material strength, reinforcement geometry and arrangement,
and
the
influence
of
the
axial
load.
The
conclusions
from
the
experiments
and
the
numerical
studies
are
that
the
number
of
layers
of
mesh
in
the
ferro
cement
had
a
significant
effect on
enhancing
the
maximum
axial
load
capacity
of a
column
and
increased
its
ductility
property.
The
transverse
wires
in
the
ferro-mesh
provide
confinement
to the column, and it is very good to use ferro cement material for
strengthening a column.
Description
Keywords
Ferro Cement Jacketing, Reinforced Concrete Column, Construction Methodology