| dc.description.abstract | The use of concrete as a building material is very common at this time. Damage to
reinforced concrete structures, especially column structures, cannot be avoided.
Therefore, reinforcing reinforced concrete structures with damaged qualities is a
big problem and must be repaired. The damage was caused by an earthquake and
loads that exceeded the building's carrying capacity. Indonesia is located in an
earthquake-prone area, so a strong structure is very important in the world of
Indonesian construction. In order to extend the service life of reinforced concrete
structures, it is very important to develop new methods and models that are more
robust, as well as ecological materials. UHPFRC is a type of construction material
that continues to develop and continues to be researched. However, this material
has not been used in structural construction because it still requires new design
concepts and effective implementation. The use of the UHPFRC is a new approach
and its effectiveness is not promising. In this study, samples of reinforced concrete
columns reinforced with UHPFRC coating were prepared. One reinforced concrete
column is designated as the control column and the other 3 reinforced concrete
columns are tested with a load equal to 50% of the maximum load capacity of the
control column. The damaged reinforced concrete columns were then reinforced by
coating with UHPFR methods, with thickness variations of 10, 15, and 20 mm. Test
results of reinforced concrete columns are described and analyzed graphically
using the basic formula of reinforced concrete columns. The test results show that
the maximum load obtained increases in all columns coated with UHPFRC. The
increase in each column compared to the control column was 57.05%; and
269.54%. Also, reinforced concrete columns with layers of UPHFRC of different
thicknesses are abbreviated with a CC-0 value of 11.62 mm; RCS-1 14.58mm; and
the 20.59mm RCS-2. The increase in the maximum load obtained by each column
shows that column repair with a UHPFRC layer is possible as a reinforcement
material for reinforced concrete columns in earthquake-prone areas. | en_US |
