ANALISIS MODULUS ELASTISITAS LENTUR TERHADAP LOSS FACTOR BETON POLIMER
ABSTRACT: Polimer concrete has
different behaviour and different mechanic characteristic than othersbecause it
depends on material polimer that are used, so that it caused to be researched
and bestudied its behaviour and dynamic characteristic. This polimer concrete
was made of prepackedsystem, consisted of unsaturated polyester (UP) added with
styrene monomer (SM) as bindermatrix, cobalt napthenate solution (CoNp) as a
promotor and methyl ethyl ketone peroxide(MEKPO) as an initiator, and coarse
aggregate as inclusion. In this composition, variation ofpolymer concrete based
on percentage of polimer and fly ash as a filler, and any other materialswere
keeped in constant. The object of this research, to find out values of damping
(loss factor),dynamic parameter,and then compare it with flexural modulus
elasticity, so that series oflaboratory tests were carried out. Test results
showed, values of damping (loss factor) 1,669 3,017%. Results also showed that
much and much more content of polymer caused loss factor(), damping coeffisien
(c) and damping ratio () decrease, however it showed that fly ashaffected to
increase value of dynamic parameter. When analising damping factor of
polimerconcrete, its suggested to use flexural modulus elasticity because both
of flexural modulus andloss factor (modal test) showed the same flexural
behaviour.
Penulis: Mohd. Isneini
Kode Jurnal: jptsipildd090122