PENGARUH KANDUNGAN DAN UKURAN SERBUK GENTENG SOKKA TERHADAP KETAHANAN BAKAR KOMPOSIT GEOPOLIMER
ABSTRACT: The objective of
this research is to investigate the effect of particle content and grain size
of Sokka roof tile powder on the burning endurance of the composite of Sokka
roof tile powder - ripoxy R-802.The materials used were a Sokka roof tile
powder (SGS), ripoxy R-802 resin, MEKPO catalyst and P-EX promotor. The Sokka
roof tile powder was generated from the rejected Sokka roof tile which was
crushed into powder. The powder was sieved to result in three size variances,
which were mesh 80 retained in mesh 100 (177μm-149μm), mesh 150 retained in
mesh 200 (99μm-74μm), and breaking away from mesh 200 (≤74μm). Prior to getting
mixed with the resin, SGS was heated in an oven for 45 minutes in the
temperature of 105oC. Afterwards, the powder was mixed with ripoxy R-802 resin
for 3 minutes. The variances of SGS content were determined to be 10%, 20%, 30%
and 40% composition. Making composite was conducted by press mould. Fixed
composites was given post curing treatment in the temperatures of 80oC for 120
minutes. The burning testing on the composite was conducted on the basis of the
standard of ASTM D-635. The indicator of burning endurance was determined by
the data of time of burning (TOB) and rate of burning (ROB). The TOB resulted
from the time of ignition and the ROB resulted from the time of fire
propagation time in the composite. The results of this research are as follows:
(1) the addition of SGS can improve the burning endurance of the composite of
SGS-ripoxy R-802 as indicated by the increase in the TOB but the decrease of
ROB due to the addition of the content of SGS; (2) the small size of the
particle of SGS can increase the burning endurance of the composite of
SGS-ripoxy R-802 as signified by the increase in the TOB but the decrease in
the ROB due to the small size of the particle of SGS which breaks away from
mesh 200 (≤74μm).
Penulis: Kuncoro Diharjo, Bambang
Kusharjanta, Roy Aries P Tarigan, Albert Raga Andhika
Kode Jurnal: jptmesindd130285