Optimum concentration of Bacillus megaterium for strengthening structural concrete
- Title
- Optimum concentration of Bacillus megaterium for strengthening structural concrete
- Author
- 이한승
- Keywords
- Bacillus megaterium; Calcite precipitation; Bacterial concrete; Strength; Micro-structural analysis; BACTERIAL CARBONATE PRECIPITATION; CEMENTITIOUS MATERIALS; IMPROVEMENT; DURABILITY; MORTAR; AGENT
- Issue Date
- 2016-08
- Publisher
- ELSEVIER SCI LTD
- Citation
- CONSTRUCTION AND BUILDING MATERIALS, v. 118, Page. 180-193
- Abstract
- Five different cell concentrations of Bacillus megaterium (10 x 10(5) to 50 x 10(5) cfu/ml) were introduced in structural concrete to achieve the optimum concentration of bacteria. The significant increase in the strength was obtained in the case of 30 x 10(5) cfu/ml at different ages. The strength of highest grade of bacterial concrete had improved (24%) as compared to lowest grade (12.8%) due to calcification mechanism. Microbial calcite precipitation was quantified using X-ray diffraction analysis, visualized by scanning electron microscopy and analyzed by energy dispersive spectrometer. It was found that the optimum concentration of B. megaterium had a positive effect on high strength structural concrete. (C) 2016 Elsevier Ltd. All rights reserved.
- URI
- https://www.sciencedirect.com/science/article/pii/S0950061816306973http://hdl.handle.net/20.500.11754/68037
- ISSN
- 0950-0618; 1879-0526
- DOI
- 10.1016/j.conbuildmat.2016.04.142
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > ARCHITECTURE(건축학부) > Articles
- Files in This Item:
There are no files associated with this item.
- Export
- RIS (EndNote)
- XLS (Excel)
- XML