Effect of Temperature on Precipitation Rate of Calcium Carbonate Produced through Microbial Metabolic Process of Bio Materials
Abstract: Concrete is the most
widely used construction material in civil engineering. But plain concrete is a
brittle material and has little resistance to cracking. The cracking in
concrete promotes deterioration such as the corrosion of reinforcing rebar,
therefore, repair in filling the crack is often carried out. Recently, repair
methods using bio-based materials associated with microbial metabolic processes
leading to precipitation of calcium carbonate have been intensively studied. In
this study, influencing factors on the precipitation rate depending on the
constituents of bio-based material comprising yeast, glucose and calcium
acetate mixed in tris buffer solution was examined for improving the rate of
initial reactions. In addition, effect of temperature change on the amount of
calcium carbonate precipitation was also investigated. The precipitates were
identified by X-ray diffraction. It was shown that the increase of temperature
lead to a change on calcium carbonate precipitation and caused the pH decrease
under 7.0.
Author: Prima Yane Putri,
Keiyu Kawaai, Isao Ujike, Saya Yamamoto
Journal Code: jptsipilgg160075
Artikel Terkait :
Jp Teknik Sipil gg 2016
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