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A platform for research: civil engineering, architecture and urbanism
On possibility of improvement of compacted silty soils using biodeposition method
Graphical abstract
HighlightsSporosarcina pasteurii strain ensures lithification and increase of soil rigidity.Biodeposition highly improves shear strength of silty soil at small deformations.Sporosarcina pasteurii strain is resistant to dynamic impact typical for earthworks.Observed strengthening effect may be applicable in building earth structures.
AbstractContemporary challenges and results of the research to date show that the search for environmentally-friendly ways of soil improvement is the right direction. The paper presents biogrouting of silty soil compacted using standard energies in the laboratory soil compactor. An improvement of transition soils by biodeposition using Sporosarcina pasteurii has been undertaken. Biodeposition has increased shear strength in the triaxial compression test. It has been concluded that application of bacteria solution on the soil ensures lithification and a significant increase of soil rigidity. Resistance of Sporosarcina pasteurii strain to dynamic impact during soil compaction allows a possible application of these microorganisms in geoengineering.
On possibility of improvement of compacted silty soils using biodeposition method
Graphical abstract
HighlightsSporosarcina pasteurii strain ensures lithification and increase of soil rigidity.Biodeposition highly improves shear strength of silty soil at small deformations.Sporosarcina pasteurii strain is resistant to dynamic impact typical for earthworks.Observed strengthening effect may be applicable in building earth structures.
AbstractContemporary challenges and results of the research to date show that the search for environmentally-friendly ways of soil improvement is the right direction. The paper presents biogrouting of silty soil compacted using standard energies in the laboratory soil compactor. An improvement of transition soils by biodeposition using Sporosarcina pasteurii has been undertaken. Biodeposition has increased shear strength in the triaxial compression test. It has been concluded that application of bacteria solution on the soil ensures lithification and a significant increase of soil rigidity. Resistance of Sporosarcina pasteurii strain to dynamic impact during soil compaction allows a possible application of these microorganisms in geoengineering.
On possibility of improvement of compacted silty soils using biodeposition method
Grabiec, Anna M. (author) / Starzyk, Justyna (author) / Stefaniak, Katarzyna (author) / Wierzbicki, Jędrzej (author) / Zawal, Daniel (author)
Construction and Building Materials ; 138 ; 134-140
2017-01-21
7 pages
Article (Journal)
Electronic Resource
English
On possibility of improvement of compacted silty soils using biodeposition method
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