Journal
ENVIRONMENTAL GEOTECHNICS
Volume 6, Issue 8, Pages 562-566Publisher
ICE PUBLISHING
DOI: 10.1680/jenge.16.00009
Keywords
environment; geotechnical enginerring; soil stabilisation
Categories
Funding
- Research Management Centre of Universiti Putra Malaysia under the Exploratory Research Grant Scheme - Ministry of Higher Education in Malaysia (`Soft soil stabilization using electro-biogrouting method' [5527094]
- Grants-in-Aid for Scientific Research [16H04404] Funding Source: KAKEN
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Factors that influence microbially induced carbonate precipitation (MICP) include bacterial species, bacterial cell concentration and urea and calcium ion (Ca2+) concentrations for determining the most effective laboratory conditions for calcium carbonate (CaCO3) precipitation by Sporosarcina pasteurii and Sporosarcina aquimarina bacteria. In this study, the most effective laboratory conditions for MICP by S. aquimarina were 12.8 x 10(9) bacterial cells/ml, 0.25 M urea and 2 M calcium chloride (CaCl2). On the other hand, the most effective conditions for S. pasteurii were 9 x 10(9) bacterial cells/ml, 1 M urea and 2 M calcium chloride.
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