Pengaruh Penggunaan Calcium stearate Terhadap nilai Absorbsi Dan Arus Macrocel Pada Beton Bertulang
Abstract: Bridge structure in
the USA amounted to 577,000 units and as many as 134,000 units (23% of the
total bridge) against damage caused by corrosion. This damage requires repairs
at a cost not less than U.S.$ 90.9 billion. This damage is similar to the
events in Indonesia.
This research was performed by use of the calcium Stearate to neutralize
reinforcement corrosion in reinforced concrete. Calcium Stearate will react
with the cement hydration reaction during the process underway. The result of
this reaction is physically looks like a candle. This compound would cover and
fill the capillaries when water evaporates in the fresh concrete. This layer
does not absorb and impermeable to water and corrosive compounds. So that these
compounds caused corrosion of the reinforcement can not penetrate reinforced
concrete. The ultimate goal of using calcium Stearate is to increase the
service life of aging structures in corrosive areas such as building docks,
bridges andrigid layer on the highway. The results showed that the use of
calcium Stearate concrete with fly ash at 0% have a tendency of lowering the
rate of corrosion of reinforcement and inhibit corrosion. Calcium Stearate with
a dose of 2 kg per m3 of concrete can decrease makrocell value amounting to
67%. While on the concrete with fly ash 40%, the addition of 2 kg of calcium
Stearate cause makrocell value decreased by 85%.
Penulis: Agus Maryoto, Yanuar
Haryanto, Gathot Heri Sudibyo
Kode Jurnal: jptindustridd100091