PENGARUH DISTRIBUSI TULANGAN GESER TERHADAP KUAT GESER BETON RINGAN BUSA BERSERAT NYLON DENGAN METODE PUSH - OFF
Abstract: This study aims to
determine the effect of the distribution of shear reinforcement to shear
strength fiber nylon foam lightweight concrete. Specimens used for testing the
push - off is a Z - shaped concrete shear reinforcement that has been given by
Av ( extensive reinforcement total ) = 113.08 mm2 , and a cylindrical specimen
of 15 cm diameter and 30 cm high. Specimens were tested after the age of 28
days. The dimensions of the push - off test specimen is 20x10x30 cm. Push - off
test specimens reinforced with 4Ø12 to avoid collapse in the neck specimen.
Shear reinforcement placed according to the distance plans , and by means of
welded dikat. Tests include lightweight concrete compressive strength test
fiber foam, split tensile strength test of lightweight foam concrete fiber ,
steel tensile strength test to determine the quality of steel used, as well as
lightweight foam concrete shear test berserat.Hasil testing shows the
relationship between shear stress with tensile strength as well as strong he
stressed. Vserat value ( shear stress due to the contribution of fiber ) used
was 1.08 kg/cm2 and Vs ( shear stress due to the contribution of steel ) ) is
11.6 kg/cm2nilai contributions donated by the reinforcement fibers and obtained
from previous studies . In this research also found the effect of reinforcing
the widespread distribution of the total reinforcement ( Av ) is the sam . From
these results obtained percentage value of shear stress against compressive
strength with reinforcement 1Ø12 is 19.793 %, 25.574 % is 4Ø6 reinforcement ,
and 9Ø4 is 27.173 %. Difference in percentage of shear stress on split tensile
strength is at 1Ø12 2.44% , 74.13 % and 85.21 % at 4Ø6 on 9Ø4 . Results shear
push - off test specimen with reinforcement 1Ø12 is 49 250 kg/cm2, 4Ø6 is
55.470 kg/cm2 , and 9Ø4 is 59,000 kg/cm2 , it is known that the more the
distribution of reinforcement will increase the shear stress fiber lightweight
concrete foam .
Keywords: Distribution of
shear reinforcement; push – off method; shear stress fiber lightweight concrete
foam
Penulis: Muhammad Ali Akoeb,
Abdulah
Kode Jurnal: jptsipildd130634