Development of Microbial Metabolic Processes to Repair Concrete Joint Leakage

Abstract:

This study proposes methods and examines the applicability of material generated from the metabolic processes of microorganisms to repair the leakage of concrete joints. Yeast was selected as the microorganism used for grout. The combination of yeast and a nutrition source with the largest amount of calcium carbonate extraction was found using the metabolic process of yeast. Calcium carbonate presence was determined by X-ray analysis. Water permeability of the concrete joint repaired with grout made from the largest yeast extraction was tested. From the results of the water permeability test, it is shown that grout made from the metabolic processes of yeast is capable of repairing a concrete joint.

• Periodical: Advanced Materials Research (Volume 845)
• Pages: 158-162
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.845.158
• Online since: December 2013
• Authors: F. Kubo, Shinichiro Okazaki, Isao Ujike*
• Keywords: Bio Grout, Hydroxypropyl Cellulose, Microbial Metabolic Process, Repair, Yeast Fungus

References

[1] R. Kawasaki et. al. : Fundamental Study on Novel Grout Cementing Due to Microbial Metabolism, Journal of Japan Society of Engineering Geology, Vol. 47 , No. 1 (2006) 2-12.

[2] Y. Matsushita, S. Okazaki, H. Yasuhara, I. Ujike: Development of the repairing method of construction to the crack of concrete by using microbe metabolism, Proceedings of Japan Concrete Institute, Vol. 32, No. 1 (2010) 1589-1594.