Application of Biotechnology-Based Method for Ehancing Concrete Properties
A. Vahabi1,
K. Akbari Noghabi2, and
A. A. Ramezanianpour3
1.Department of Construction Engineering and
Management, Science & research Branch, Islamic Azad University, Tehran,
Iran.
2.National Institute of Genetic Engineering and Biotechnology (NIGEB), Karaj-Tehran highway, Pazhohesh Blvd, P.O. Box 14155-6343, Tehran, Iran.
3.Department of Civil & Environmental Engineering, Amirkabir University of Technology, Tehran, Iran.
2.National Institute of Genetic Engineering and Biotechnology (NIGEB), Karaj-Tehran highway, Pazhohesh Blvd, P.O. Box 14155-6343, Tehran, Iran.
3.Department of Civil & Environmental Engineering, Amirkabir University of Technology, Tehran, Iran.
Abstract—Concrete is increasing worldwide as a significant partial of structure because it is robust and cheap. However, porosity is an ordinary phenomenon in concrete that has detrimental effects on concrete properties such as reduction of compressive strength. In this research, a novel biotechnology-based method using a specific strain was applied to improve compressive strength of specimens. For this purpose, the specific strain with the ability of mineral precipitation was isolated from alkaline soil by using an enrichment culture technique. Therefore, identification of calcium carbonate-based mineral precipitations was examined by Fourier-Transform Infrared (FT-IR) spectrometry. Bacillus sp. LS1 as an indigenous strain was applied in mortar specimens to determine its effect on compressive strength. Finally, bacterial mortars revealed a significant increasing compressive strength in comparison to control specimens. In conclusion, result of this study is appeared to be promising and overall viewpoint can be demonstrated as an alternative for improving concrete properties.
Index Terms—Bacterial mortar, calcium carbonate, compressive strength, FT-IR.
Cite: A. Vahabi, K. Akbari Noghabi, and A. A. Ramezanianpour, "Application of Biotechnology-Based Method for Ehancing Concrete Properties", Journal of Medical and Bioengineering vol. 1, no. 1, pp. 36-38, 2012. doi: 10.12720/jomb.1.1.36-38
Index Terms—Bacterial mortar, calcium carbonate, compressive strength, FT-IR.
Cite: A. Vahabi, K. Akbari Noghabi, and A. A. Ramezanianpour, "Application of Biotechnology-Based Method for Ehancing Concrete Properties", Journal of Medical and Bioengineering vol. 1, no. 1, pp. 36-38, 2012. doi: 10.12720/jomb.1.1.36-38
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