GEDUNG PASCA BAKAR ESTIMASI KEKUATAN SISA DAN TEKNOLOGI PERBAIKANNYA
ABSTRACT: Recently, there have
been some building made from concrete structure
fired. If a building is fired, the load capacity will decrease.
Actually, concrete is a kind of fire-proof construction material. However, if a concrete is heated at
more than 5000C, significant strength degradation will occur (up to
50%). The strength degradation is occured due to decomposition process of C-S-H
that are decomposited become CaO and SiO2,. It also can occur due to the
difference of sublimation value between agregate and cement paste which can
damage the interfacial zone, hence the coherent force among agregates will
decrease. However, it does not mean that when a building is fired, this
building can not be used anymore. This problem can be solved by using
appropriate rehabilitation technology. There are some appropriate rehabilitation
technology that can be used to rehabilitate a building after fire, such as :
Coating method, Shotcrete method, Injection method (using epoxyresin), and
Prepacked Concrete method for heavy damage. However, the level of the damage
should be considered before choosing the rehabilitation technology method.
Key words: pasca bakar, metode
Coating, Shotcrete, Injeksi, Prepacked Concrete
Penulis: Abdul Rochman
Kode Jurnal: jptsipildd060011
