Geotechnical Tests of Sands Following Bioinduced Calcite Precipitation Catalyzed by Indigenous Bacteria

Burbank, Malcolm; Weaver, Thomas J.; Lewis, Ryan; Williams, Thomas; Williams, Barbara C.; Crawford, Ronald L.

doi:10.1061/(asce)gt.1943-5606.0000781

Cited by 228 publications

(76 citation statements)

References 21 publications

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“…Moreover, the undrained strength was improved to the point where loose sand was no longer collapsible under undrained monotonic loading (DeJong et al, 2006;Montoya and DeJong, 2015). In addition, the undrained cyclic shear strength was significantly improved due to CaCO 3 precipitation (Burbank et al, 2013;Montoya et al, 2013).…”

Section: Introductionmentioning

confidence: 90%

“…Although the definition of the onset of liquefaction given in their study differs from the one given in the present study (i.e., 3% strain was used in their study, while 5% is used in this study) and there might be differences in the choices of the test apparatus, their results still strongly support the trend obtained in the present study, namely, that the addition of a fines content in sand hinders the increase in liquefaction resistance. Burbank et al (2013) retrieved natural soil samples from the shore of a river, and carried out undrained cyclic triaxial shear tests on samples that were microbially precipitated with CaCO 3 . Their results showed that the improved samples took 10 cycles of loading to reach liquefaction under a CSR of 0.23 when the relative density of the soil was around 35% and the amount of produced CaCO 3 was somewhere between 2.2% and 2.6%.…”

Section: Liquefaction Resistance Of Microbially Improved Sand With Fimentioning

confidence: 99%

“…The unconfined compressive strength of residual soil samples containing silt and clay contents of more than 60% was successfully enhanced by MICP Ng et al, 2013;Ng et al, 2014). The undrained cyclic shear resistance of natural river sand samples was improved by MICP with indigenous bacteria (Burbank et al, 2013). MICP was also effective in increasing the erosion resistance of sand having a kaolin content of 20% .…”

Section: Introductionmentioning

confidence: 96%

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Undrained cyclic triaxial testing on sand with non-plastic fines content cemented with microbially induced CaCO3

Sasaki

Kuwano

2016

Soils and Foundations

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Section: Introductionmentioning

confidence: 90%

Section: Liquefaction Resistance Of Microbially Improved Sand With Fimentioning

confidence: 99%

Section: Introductionmentioning

confidence: 96%

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Undrained cyclic triaxial testing on sand with non-plastic fines content cemented with microbially induced CaCO3

Sasaki

Kuwano

2016

Soils and Foundations

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“…Native or extraneous bacteria can be utilized to induce urea hydrolysis and thus create calcite precipitation when calcium ions are available (DeJong et al 2006;. It has been reported that MICP is effective in the increase of strength and stiffness of soil in both laboratory scale testing (DeJong et al 2006;Whiffin et al 2007;Chou et al 2011;Chu et al 2012;Feng and Montoya 2014) and large scale testing (van Paassen et al 2010;Burbank et al 2013). However, further research is needed to explore the effect of cementation level and confinement on MICP soil's behavior.…”

Section: Introductionmentioning

confidence: 98%

Drained Shear Strength of MICP Sand at Varying Cementation Levels

Feng

Montoya

2015

Ifcee 2015

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Microbial induced calcite precipitation (MICP) is a novel ground improvement method to increase strength and stiffness of sand using natural biogeochemical processes. Cementation level and confining pressure are two important factors that control the behavior of MICP sand. The static mechanical responses of MICP Cemented Sand are systematically investigated using four cementation levels (untreated, lightly treated, moderately treated, and heavily treated) and three levels of confining pressure (100kPa, 200kPa, and 400kPa). The experimental results indicate that the improvement in shear strength parameters is dependent on the level of cementation under peak and residual states. Uniformity of MICP cementation in laboratory scale is also discussed. When comparing the response of MICP sand with naturally cemented sand and artificially treated sand with Portland cement, the MICP cemented sand is observed to better capture the small strain stiffness of the naturally cemented soil.

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“…Scale model tests have demonstrated the effectiveness of MICP in reducing wind-and water-induced erosion (Bang et al, 2011), improving resistance to liquefaction (Inagaki et al, 2011b;Montoya et al, 2013), creating impermeable crusts for catchment facilities Chu et al, 2012), healing/stabilising cracks in concrete and masonry (Ramachandran et al, 2001;Bang et al, 2010;Yang et al, 2011), treating waste (Chu et al, 2009), immobilising heavy metals (Fujita et al, 2004(Fujita et al, , 2008(Fujita et al, , 2010Hamdan et al, 2011a;Li et al, 2011), and performing shallow carbon sequestration (Manning, 2008;Renforth et al, 2009Renforth et al, , 2011Washbourne et al, 2012). MICP has also been shown to increase cone tip resistance (Burbank et al, 2012b).…”

Section: Microbially Induced Calcite Precipitationmentioning

confidence: 99%

Biogeochemical processes and geotechnical applications: progress, opportunities and challenges

DeJong¹,

Soga²,

Kavazanjian³

et al. 2013

Géotechnique

642

144

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Consideration of soil as a living ecosystem offers the potential for innovative and sustainable solutions to geotechnical problems. This is a new paradigm for many in geotechnical engineering. Realising the potential of this paradigm requires a multidisciplinary approach that embraces biology and geochemistry to develop techniques for beneficial ground modification. This paper assesses the progress, opportunities, and challenges in this emerging field. Biomediated geochemical processes, which consist of a geochemical reaction regulated by subsurface microbiology, currently being explored include mineral precipitation, gas generation, biofilm formation and biopolymer generation. For each of these processes, subsurface microbial processes are employed to create an environment conducive to the desired geochemical reactions among the minerals, organic matter, pore fluids, and gases that constitute soil. Geotechnical applications currently being explored include cementation of sands to enhance bearing capacity and liquefaction resistance, sequestration of carbon, soil erosion control, groundwater flow control, and remediation of soil and groundwater impacted by metals and radionuclides. Challenges in biomediated ground modification include upscaling processes from the laboratory to the field, in situ monitoring of reactions, reaction products and properties, developing integrated biogeochemical and geotechnical models, management of treatment by-products, establishing the durability and longevity/reversibility of the process, and education of engineers and researchers.

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Geotechnical Tests of Sands Following Bioinduced Calcite Precipitation Catalyzed by Indigenous Bacteria

Cited by 228 publications

References 21 publications

Undrained cyclic triaxial testing on sand with non-plastic fines content cemented with microbially induced CaCO3

Undrained cyclic triaxial testing on sand with non-plastic fines content cemented with microbially induced CaCO3

Drained Shear Strength of MICP Sand at Varying Cementation Levels

Biogeochemical processes and geotechnical applications: progress, opportunities and challenges

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